TITLE 26 - US CODE - PART IV - CREDITS AGAINST TAX

Subpart A - Nonrefundable Personal Credits

26 USC 21 - Expenses for household and dependent care services necessary for gainful employment

(a) Allowance of credit 

(1) In general 
In the case of an individual for which there are 1 or more qualifying individuals (as defined in subsection (b)(1)) with respect to such individual, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the applicable percentage of the employment-related expenses (as defined in subsection (b)(2)) paid by such individual during the taxable year.
(2) Applicable percentage defined 
For purposes of paragraph (1), the term applicable percentage means 35 percent reduced (but not below 20 percent) by 1 percentage point for each $2,000 (or fraction thereof) by which the taxpayers adjusted gross income for the taxable year exceeds $15,000.
(b) Definitions of qualifying individual and employment-related expenses 
For purposes of this section
(1) Qualifying individual 
The term qualifying individual means
(A) a dependent of the taxpayer (as defined in section 152 (a)(1)) who has not attained age 13,
(B) a dependent of the taxpayer (as defined in section 152, determined without regard to subsections (b)(1), (b)(2), and (d)(1)(B)) who is physically or mentally incapable of caring for himself or herself and who has the same principal place of abode as the taxpayer for more than one-half of such taxable year, or
(C) the spouse of the taxpayer, if the spouse is physically or mentally incapable of caring for himself or herself and who has the same principal place of abode as the taxpayer for more than one-half of such taxable year.
(2) Employment-related expenses 

(A) In general 
The term employment-related expenses means amounts paid for the following expenses, but only if such expenses are incurred to enable the taxpayer to be gainfully employed for any period for which there are 1 or more qualifying individuals with respect to the taxpayer:
(i) expenses for household services, and
(ii) expenses for the care of a qualifying individual.

Such term shall not include any amount paid for services outside the taxpayers household at a camp where the qualifying individual stays overnight.

(B) Exception 
Employment-related expenses described in subparagraph (A) which are incurred for services outside the taxpayers household shall be taken into account only if incurred for the care of
(i) a qualifying individual described in paragraph (1)(A), or
(ii) a qualifying individual (not described in paragraph (1)(A)) who regularly spends at least 8 hours each day in the taxpayers household.
(C) Dependent care centers 
Employment-related expenses described in subparagraph (A) which are incurred for services provided outside the taxpayers household by a dependent care center (as defined in subparagraph (D)) shall be taken into account only if
(i) such center complies with all applicable laws and regulations of a State or unit of local government, and
(ii) the requirements of subparagraph (B) are met.
(D) Dependent care center defined 
For purposes of this paragraph, the term dependent care center means any facility which
(i) provides care for more than six individuals (other than individuals who reside at the facility), and
(ii) receives a fee, payment, or grant for providing services for any of the individuals (regardless of whether such facility is operated for profit).
(c) Dollar limit on amount creditable 
The amount of the employment-related expenses incurred during any taxable year which may be taken into account under subsection (a) shall not exceed
(1) $3,000 if there is 1 qualifying individual with respect to the taxpayer for such taxable year, or
(2) $6,000 if there are 2 or more qualifying individuals with respect to the taxpayer for such taxable year.

The amount determined under paragraph (1) or (2) (whichever is applicable) shall be reduced by the aggregate amount excludable from gross income under section 129 for the taxable year.

(d) Earned income limitation 

(1) In general 
Except as otherwise provided in this subsection, the amount of the employment-related expenses incurred during any taxable year which may be taken into account under subsection (a) shall not exceed
(A) in the case of an individual who is not married at the close of such year, such individuals earned income for such year, or
(B) in the case of an individual who is married at the close of such year, the lesser of such individuals earned income or the earned income of his spouse for such year.
(2) Special rule for spouse who is a student or incapable of caring for himself 
In the case of a spouse who is a student or a qualifying individual described in subsection (b)(1)(C), for purposes of paragraph (1), such spouse shall be deemed for each month during which such spouse is a full-time student at an educational institution, or is such a qualifying individual, to be gainfully employed and to have earned income of not less than
(A) $250 if subsection (c)(1) applies for the taxable year, or
(B) $500 if subsection (c)(2) applies for the taxable year.

In the case of any husband and wife, this paragraph shall apply with respect to only one spouse for any one month.

(e) Special rules 
For purposes of this section
(1) Place of abode 
An individual shall not be treated as having the same principal place of abode of the taxpayer if at any time during the taxable year of the taxpayer the relationship between the individual and the taxpayer is in violation of local law.
(2) Married couples must file joint return 
If the taxpayer is married at the close of the taxable year, the credit shall be allowed under subsection (a) only if the taxpayer and his spouse file a joint return for the taxable year.
(3) Marital status 
An individual legally separated from his spouse under a decree of divorce or of separate maintenance shall not be considered as married.
(4) Certain married individuals living apart 
If
(A) an individual who is married and who files a separate return
(i) maintains as his home a household which constitutes for more than one-half of the taxable year the principal place of abode of a qualifying individual, and
(ii) furnishes over half of the cost of maintaining such household during the taxable year, and
(B) during the last 6 months of such taxable year such individuals spouse is not a member of such household,

such individual shall not be considered as married.

(5) Special dependency test in case of divorced parents, etc. 
If
(A) section 152 (e) applies to any child with respect to any calendar year, and
(B) such child is under the age of 13 or is physically or mentally incapable of caring for himself,

in the case of any taxable year beginning in such calendar year, such child shall be treated as a qualifying individual described in subparagraph (A) or (B) of subsection (b)(1) (whichever is appropriate) with respect to the custodial parent (as defined in section 152 (e)(4)(A)), and shall not be treated as a qualifying individual with respect to the noncustodial parent.

(6) Payments to related individuals 
No credit shall be allowed under subsection (a) for any amount paid by the taxpayer to an individual
(A) with respect to whom, for the taxable year, a deduction under section 151 (c) (relating to deduction for personal exemptions for dependents) is allowable either to the taxpayer or his spouse, or
(B) who is a child of the taxpayer (within the meaning of section 152 (f)(1)) who has not attained the age of 19 at the close of the taxable year.

For purposes of this paragraph, the term taxable year means the taxable year of the taxpayer in which the service is performed.

(7) Student 
The term student means an individual who during each of 5 calendar months during the taxable year is a full-time student at an educational organization.
(8) Educational organization 
The term educational organization means an educational organization described in section 170 (b)(1)(A)(ii).
(9) Identifying information required with respect to service provider 
No credit shall be allowed under subsection (a) for any amount paid to any person unless
(A) the name, address, and taxpayer identification number of such person are included on the return claiming the credit, or
(B) if such person is an organization described in section 501 (c)(3) and exempt from tax under section 501 (a), the name and address of such person are included on the return claiming the credit.

In the case of a failure to provide the information required under the preceding sentence, the preceding sentence shall not apply if it is shown that the taxpayer exercised due diligence in attempting to provide the information so required.

(10) Identifying information required with respect to qualifying individuals 
No credit shall be allowed under this section with respect to any qualifying individual unless the TIN of such individual is included on the return claiming the credit.
(f) Regulations 
The Secretary shall prescribe such regulations as may be necessary to carry out the purposes of this section.

26 USC 22 - Credit for the elderly and the permanently and totally disabled

(a) General rule 
In the case of a qualified individual, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to 15 percent of such individuals section 22 amount for such taxable year.
(b) Qualified individual 
For purposes of this section, the term qualified individual means any individual
(1) who has attained age 65 before the close of the taxable year, or
(2) who retired on disability before the close of the taxable year and who, when he retired, was permanently and totally disabled.
(c) Section 22 amount 
For purposes of subsection (a)
(1) In general 
An individuals section 22 amount for the taxable year shall be the applicable initial amount determined under paragraph (2), reduced as provided in paragraph (3) and in subsection (d).
(2) Initial amount 

(A) In general 
Except as provided in subparagraph (B), the initial amount shall be
(i) $5,000 in the case of a single individual, or a joint return where only one spouse is a qualified individual,
(ii) $7,500 in the case of a joint return where both spouses are qualified individuals, or
(iii) $3,750 in the case of a married individual filing a separate return.
(B) Limitation in case of individuals who have not attained age 65 

(i) In general In the case of a qualified individual who has not attained age 65 before the close of the taxable year, except as provided in clause (ii), the initial amount shall not exceed the disability income for the taxable year.
(ii) Special rules in case of joint return In the case of a joint return where both spouses are qualified individuals and at least one spouse has not attained age 65 before the close of the taxable year
(I) if both spouses have not attained age 65 before the close of the taxable year, the initial amount shall not exceed the sum of such spouses disability income, or
(II) if one spouse has attained age 65 before the close of the taxable year, the initial amount shall not exceed the sum of $5,000 plus the disability income for the taxable year of the spouse who has not attained age 65 before the close of the taxable year.
(iii) Disability income For purposes of this subparagraph, the term disability income means the aggregate amount includable in the gross income of the individual for the taxable year under section 72 or 105 (a) to the extent such amount constitutes wages (or payments in lieu of wages) for the period during which the individual is absent from work on account of permanent and total disability.
(3) Reduction 

(A) In general 
The reduction under this paragraph is an amount equal to the sum of the amounts received by the individual (or, in the case of a joint return, by either spouse) as a pension or annuity or as a disability benefit
(i) which is excluded from gross income and payable under
(I) title II of the Social Security Act,
(II) the Railroad Retirement Act of 1974, or
(III) a law administered by the Veterans Administration, or
(ii) which is excluded from gross income under any provision of law not contained in this title.

No reduction shall be made under clause (i)(III) for any amount described in section 104 (a)(4).

(B) Treatment of certain workmen’s compensation benefits 
For purposes of subparagraph (A), any amount treated as a social security benefit under section 86 (d)(3) shall be treated as a disability benefit received under title II of the Social Security Act.
(d) Adjusted gross income limitation 
If the adjusted gross income of the taxpayer exceeds
(1) $7,500 in the case of a single individual,
(2) $10,000 in the case of a joint return, or
(3) $5,000 in the case of a married individual filing a separate return,

the section 22 amount shall be reduced by one-half of the excess of the adjusted gross income over $7,500, $10,000, or $5,000, as the case may be.

(e) Definitions and special rules 
For purposes of this section
(1) Married couple must file joint return 
Except in the case of a husband and wife who live apart at all times during the taxable year, if the taxpayer is married at the close of the taxable year, the credit provided by this section shall be allowed only if the taxpayer and his spouse file a joint return for the taxable year.
(2) Marital status 
Marital status shall be determined under section 7703.
(3) Permanent and total disability defined 
An individual is permanently and totally disabled if he is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months. An individual shall not be considered to be permanently and totally disabled unless he furnishes proof of the existence thereof in such form and manner, and at such times, as the Secretary may require.
(f) Nonresident alien ineligible for credit 
No credit shall be allowed under this section to any nonresident alien.

26 USC 23 - Adoption expenses

(a) Allowance of credit 

(1) In general 
In the case of an individual, there shall be allowed as a credit against the tax imposed by this chapter the amount of the qualified adoption expenses paid or incurred by the taxpayer.
(2) Year credit allowed 
The credit under paragraph (1) with respect to any expense shall be allowed
(A) in the case of any expense paid or incurred before the taxable year in which such adoption becomes final, for the taxable year following the taxable year during which such expense is paid or incurred, and
(B) in the case of an expense paid or incurred during or after the taxable year in which such adoption becomes final, for the taxable year in which such expense is paid or incurred.
(3) $10,000 credit for adoption of child with special needs regardless of expenses 
In the case of an adoption of a child with special needs which becomes final during a taxable year, the taxpayer shall be treated as having paid during such year qualified adoption expenses with respect to such adoption in an amount equal to the excess (if any) of $10,000 over the aggregate qualified adoption expenses actually paid or incurred by the taxpayer with respect to such adoption during such taxable year and all prior taxable years.
(b) Limitations 

(1) Dollar limitation 
The aggregate amount of qualified adoption expenses which may be taken into account under subsection (a) for all taxable years with respect to the adoption of a child by the taxpayer shall not exceed $10,000.
(2) Income limitation 

(A) In general 
The amount allowable as a credit under subsection (a) for any taxable year (determined without regard to subsection (c)) shall be reduced (but not below zero) by an amount which bears the same ratio to the amount so allowable (determined without regard to this paragraph but with regard to paragraph (1)) as
(i) the amount (if any) by which the taxpayers adjusted gross income exceeds $150,000, bears to
(ii) $40,000.
(B) Determination of adjusted gross income 
For purposes of subparagraph (A), adjusted gross income shall be determined without regard to sections 911, 931, and 933.
(3) Denial of double benefit 

(A) In general 
No credit shall be allowed under subsection (a) for any expense for which a deduction or credit is allowed under any other provision of this chapter.
(B) Grants 
No credit shall be allowed under subsection (a) for any expense to the extent that funds for such expense are received under any Federal, State, or local program.
(4) Limitation based on amount of tax 
In the case of a taxable year to which section 26 (a)(2) does not apply, the credit allowed under subsection (a) for any taxable year shall not exceed the excess of
(A) the sum of the regular tax liability (as defined in section 26 (b)) plus the tax imposed by section 55, over
(B) the sum of the credits allowable under this subpart (other than this section) and section 27 for the taxable year.
(c) Carryforwards of unused credit 

(1) Rule for years in which all personal credits allowed against regular and alternative minimum tax 
In the case of a taxable year to which section 26 (a)(2) applies, if the credit allowable under subsection (a) for any taxable year exceeds the limitation imposed by section 26 (a)(2) for such taxable year reduced by the sum of the credits allowable under this subpart (other than this section and sections 25D and 1400C), such excess shall be carried to the succeeding taxable year and added to the credit allowable under subsection (a) for such taxable year.
(2) Rule for other years 
In the case of a taxable year to which section 26 (a)(2) does not apply, if the credit allowable under subsection (a) for any taxable year exceeds the limitation imposed by subsection (b)(4) for such taxable year, such excess shall be carried to the succeeding taxable year and added to the credit allowable under subsection (a) for such taxable year.
(3) Limitation 
No credit may be carried forward under this subsection to any taxable year following the fifth taxable year after the taxable year in which the credit arose. For purposes of the preceding sentence, credits shall be treated as used on a first-in first-out basis.
(d) Definitions 
For purposes of this section
(1) Qualified adoption expenses 
The term qualified adoption expenses means reasonable and necessary adoption fees, court costs, attorney fees, and other expenses
(A) which are directly related to, and the principal purpose of which is for, the legal adoption of an eligible child by the taxpayer,
(B) which are not incurred in violation of State or Federal law or in carrying out any surrogate parenting arrangement,
(C) which are not expenses in connection with the adoption by an individual of a child who is the child of such individuals spouse, and
(D) which are not reimbursed under an employer program or otherwise.
(2) Eligible child 
The term eligible child means any individual who
(A) has not attained age 18, or
(B) is physically or mentally incapable of caring for himself.
(3) Child with special needs 
The term child with special needs means any child if
(A) a State has determined that the child cannot or should not be returned to the home of his parents,
(B) such State has determined that there exists with respect to the child a specific factor or condition (such as his ethnic background, age, or membership in a minority or sibling group, or the presence of factors such as medical conditions or physical, mental, or emotional handicaps) because of which it is reasonable to conclude that such child cannot be placed with adoptive parents without providing adoption assistance, and
(C) such child is a citizen or resident of the United States (as defined in section 217 (h)(3)).
(e) Special rules for foreign adoptions 
In the case of an adoption of a child who is not a citizen or resident of the United States (as defined in section 217 (h)(3))
(1) subsection (a) shall not apply to any qualified adoption expense with respect to such adoption unless such adoption becomes final, and
(2) any such expense which is paid or incurred before the taxable year in which such adoption becomes final shall be taken into account under this section as if such expense were paid or incurred during such year.
(f) Filing requirements 

(1) Married couples must file joint returns 
Rules similar to the rules of paragraphs (2), (3), and (4) of section 21 (e) shall apply for purposes of this section.
(2) Taxpayer must include TIN 

(A) In general 
No credit shall be allowed under this section with respect to any eligible child unless the taxpayer includes (if known) the name, age, and TIN of such child on the return of tax for the taxable year.
(B) Other methods 
The Secretary may, in lieu of the information referred to in subparagraph (A), require other information meeting the purposes of subparagraph (A), including identification of an agent assisting with the adoption.
(g) Basis adjustments 
For purposes of this subtitle, if a credit is allowed under this section for any expenditure with respect to any property, the increase in the basis of such property which would (but for this subsection) result from such expenditure shall be reduced by the amount of the credit so allowed.
(h) Adjustments for inflation 
In the case of a taxable year beginning after December 31, 2002, each of the dollar amounts in subsection (a)(3) and paragraphs (1) and (2)(A)(i) of subsection (b) shall be increased by an amount equal to
(1) such dollar amount, multiplied by
(2) the cost-of-living adjustment determined under section 1 (f)(3) for the calendar year in which the taxable year begins, determined by substituting calendar year 2001 for calendar year 1992 in subparagraph (B) thereof.

If any amount as increased under the preceding sentence is not a multiple of $10, such amount shall be rounded to the nearest multiple of $10.

(i) Regulations 
The Secretary shall prescribe such regulations as may be appropriate to carry out this section and section 137, including regulations which treat unmarried individuals who pay or incur qualified adoption expenses with respect to the same child as 1 taxpayer for purposes of applying the dollar amounts in subsections (a)(3) and (b)(1) of this section and in section 137 (b)(1).

26 USC 24 - Child tax credit

(a) Allowance of credit 
There shall be allowed as a credit against the tax imposed by this chapter for the taxable year with respect to each qualifying child of the taxpayer an amount equal to $1,000.
(b) Limitations 

(1) Limitation based on adjusted gross income 
The amount of the credit allowable under subsection (a) shall be reduced (but not below zero) by $50 for each $1,000 (or fraction thereof) by which the taxpayers modified adjusted gross income exceeds the threshold amount. For purposes of the preceding sentence, the term modified adjusted gross income means adjusted gross income increased by any amount excluded from gross income under section 911, 931, or 933.
(2) Threshold amount 
For purposes of paragraph (1), the term threshold amount means
(A) $110,000 in the case of a joint return,
(B) $75,000 in the case of an individual who is not married, and
(C) $55,000 in the case of a married individual filing a separate return.

For purposes of this paragraph, marital status shall be determined under section 7703.

(3) Limitation based on amount of tax 
In the case of a taxable year to which section 26 (a)(2) does not apply, the credit allowed under subsection (a) for any taxable year shall not exceed the excess of
(A) the sum of the regular tax liability (as defined in section 26 (b)) plus the tax imposed by section 55, over
(B) the sum of the credits allowable under this subpart (other than this section and sections 23 and 25B) and section 27 for the taxable year.
(c) Qualifying child 
For purposes of this section
(1) In general 
The term qualifying child means a qualifying child of the taxpayer (as defined in section 152 (c)) who has not attained age 17.
(2) Exception for certain noncitizens 
The term qualifying child shall not include any individual who would not be a dependent if subparagraph (A) of section 152 (b)(3) were applied without regard to all that follows resident of the United States.
(d) Portion of credit refundable 

(1) In general 
The aggregate credits allowed to a taxpayer under subpart C shall be increased by the lesser of
(A) the credit which would be allowed under this section without regard to this subsection and the limitation under section 26 (a)(2) or subsection (b)(3), as the case may be, or
(B) the amount by which the aggregate amount of credits allowed by this subpart (determined without regard to this subsection) would increase if the limitation imposed by section 26 (a)(2) or subsection (b)(3), as the case may be, were increased by the greater of
(i) 15 percent of so much of the taxpayers earned income (within the meaning of section 32) which is taken into account in computing taxable income for the taxable year as exceeds $10,000, or
(ii) in the case of a taxpayer with 3 or more qualifying children, the excess (if any) of
(I) the taxpayers social security taxes for the taxable year, over
(II) the credit allowed under section 32 for the taxable year.

The amount of the credit allowed under this subsection shall not be treated as a credit allowed under this subpart and shall reduce the amount of credit otherwise allowable under subsection (a) without regard to section 26 (a)(2) or subsection (b)(3), as the case may be. For purposes of subparagraph (B), any amount excluded from gross income by reason of section 112 shall be treated as earned income which is taken into account in computing taxable income for the taxable year.

(2) Social security taxes 
For purposes of paragraph (1)
(A) In general 
The term social security taxes means, with respect to any taxpayer for any taxable year
(i) the amount of the taxes imposed by sections 3101 and 3201 (a) on amounts received by the taxpayer during the calendar year in which the taxable year begins,
(ii) 50 percent of the taxes imposed by section 1401 on the self-employment income of the taxpayer for the taxable year, and
(iii) 50 percent of the taxes imposed by section 3211 (a) on amounts received by the taxpayer during the calendar year in which the taxable year begins.
(B) Coordination with special refund of social security taxes 
The term social security taxes shall not include any taxes to the extent the taxpayer is entitled to a special refund of such taxes under section 6413 (c).
(C) Special rule 
Any amounts paid pursuant to an agreement under section 3121 (l) (relating to agreements entered into by American employers with respect to foreign affiliates) which are equivalent to the taxes referred to in subparagraph (A)(i) shall be treated as taxes referred to in such subparagraph.
(3) Inflation adjustment 
In the case of any taxable year beginning in a calendar year after 2001, the $10,000 amount contained in paragraph (1)(B) shall be increased by an amount equal to
(A) such dollar amount, multiplied by
(B) the cost-of-living adjustment determined under section 1 (f)(3) for the calendar year in which the taxable year begins, determined by substituting calendar year 2000 for calendar year 1992 in subparagraph (B) thereof.

Any increase determined under the preceding sentence shall be rounded to the nearest multiple of $50.

(e) Identification requirement 
No credit shall be allowed under this section to a taxpayer with respect to any qualifying child unless the taxpayer includes the name and taxpayer identification number of such qualifying child on the return of tax for the taxable year.
(f) Taxable year must be full taxable year 
Except in the case of a taxable year closed by reason of the death of the taxpayer, no credit shall be allowable under this section in the case of a taxable year covering a period of less than 12 months.

26 USC 25 - Interest on certain home mortgages

(a) Allowance of credit 

(1) In general 
There shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the product of
(A) the certificate credit rate, and
(B) the interest paid or accrued by the taxpayer during the taxable year on the remaining principal of the certified indebtedness amount.
(2) Limitation where credit rate exceeds 20 percent 

(A) In general 
If the certificate credit rate exceeds 20 percent, the amount of the credit allowed to the taxpayer under paragraph (1) for any taxable year shall not exceed $2,000.
(B) Special rule where 2 or more persons hold interests in residence 
If 2 or more persons hold interests in any residence, the limitation of subparagraph (A) shall be allocated among such persons in proportion to their respective interests in the residence.
(b) Certificate credit rate; certified indebtedness amount 
For purposes of this section
(1) Certificate credit rate 
The term certificate credit rate means the rate of the credit allowable by this section which is specified in the mortgage credit certificate.
(2) Certified indebtedness amount 
The term certified indebtedness amount means the amount of indebtedness which is
(A) incurred by the taxpayer
(i) to acquire the principal residence of the taxpayer,
(ii) as a qualified home improvement loan (as defined in section 143 (k)(4)) with respect to such residence, or
(iii) as a qualified rehabilitation loan (as defined in section 143 (k)(5)) with respect to such residence, and
(B) specified in the mortgage credit certificate.
(c) Mortgage credit certificate; qualified mortgage credit certificate program 
For purposes of this section
(1) Mortgage credit certificate 
The term mortgage credit certificate means any certificate which
(A) is issued under a qualified mortgage credit certificate program by the State or political subdivision having the authority to issue a qualified mortgage bond to provide financing on the principal residence of the taxpayer,
(B) is issued to the taxpayer in connection with the acquisition, qualified rehabilitation, or qualified home improvement of the taxpayers principal residence,
(C) specifies
(i) the certificate credit rate, and
(ii) the certified indebtedness amount, and
(D) is in such form as the Secretary may prescribe.
(2) Qualified mortgage credit certificate program 

(A) In general 
The term qualified mortgage credit certificate program means any program
(i) which is established by a State or political subdivision thereof for any calendar year for which it is authorized to issue qualified mortgage bonds,
(ii) under which the issuing authority elects (in such manner and form as the Secretary may prescribe) not to issue an amount of private activity bonds which it may otherwise issue during such calendar year under section 146,
(iii) under which the indebtedness certified by mortgage credit certificates meets the requirements of the following subsections of section 143 (as modified by subparagraph (B) of this paragraph):
(I) subsection (c) (relating to residence requirements),
(II) subsection (d) (relating to 3-year requirement),
(III) subsection (e) (relating to purchase price requirement),
(IV) subsection (f) (relating to income requirements),
(V) subsection (h) (relating to portion of loans required to be placed in targeted areas), and
(VI) paragraph (1) of subsection (i) (relating to other requirements),
(iv) under which no mortgage credit certificate may be issued with respect to any residence any of the financing of which is provided from the proceeds of a qualified mortgage bond or a qualified veterans mortgage bond,
(v) except to the extent provided in regulations, which is not limited to indebtedness incurred from particular lenders,
(vi) except to the extent provided in regulations, which provides that a mortgage credit certificate is not transferrable, and
(vii) if the issuing authority allocates a block of mortgage credit certificates for use in connection with a particular development, which requires the developer to furnish to the issuing authority and the homebuyer a certificate that the price for the residence is no higher than it would be without the use of a mortgage credit certificate.

Under regulations, rules similar to the rules of subparagraphs (B) and (C) of section 143 (a)(2) shall apply to the requirements of this subparagraph.

(B) Modifications of section 143 
Under regulations prescribed by the Secretary, in applying section 143 for purposes of subclauses (II), (IV), and (V) of subparagraph (A)(iii)
(i) each qualified mortgage certificate credit program shall be treated as a separate issue,
(ii) the product determined by multiplying
(I) the certified indebtedness amount of each mortgage credit certificate issued under such program, by
(II) the certificate credit rate specified in such certificate,

shall be treated as proceeds of such issue and the sum of such products shall be treated as the total proceeds of such issue, and

(iii) paragraph (1) of section 143 (d) shall be applied by substituting 100 percent for 95 percent or more.

Clause (iii) shall not apply if the issuing authority submits a plan to the Secretary for administering the 95-percent requirement of section 143 (d)(1) and the Secretary is satisfied that such requirement will be met under such plan.

(d) Determination of certificate credit rate 
For purposes of this section
(1) In general 
The certificate credit rate specified in any mortgage credit certificate shall not be less than 10 percent or more than 50 percent.
(2) Aggregate limit on certificate credit rates 

(A) In general 
In the case of each qualified mortgage credit certificate program, the sum of the products determined by multiplying
(i) the certified indebtedness amount of each mortgage credit certificate issued under such program, by
(ii) the certificate credit rate with respect to such certificate,

shall not exceed 25 percent of the nonissued bond amount.

(B) Nonissued bond amount 
For purposes of subparagraph (A), the term nonissued bond amount means, with respect to any qualified mortgage credit certificate program, the amount of qualified mortgage bonds which the issuing authority is otherwise authorized to issue and elects not to issue under subsection (c)(2)(A)(ii).
(e) Special rules and definitions 
For purposes of this section
(1) Carryforward of unused credit 

(A) In general 
If the credit allowable under subsection (a) for any taxable year exceeds the applicable tax limit for such taxable year, such excess shall be a carryover to each of the 3 succeeding taxable years and, subject to the limitations of subparagraph (B), shall be added to the credit allowable by subsection (a) for such succeeding taxable year.
(B) Limitation 
The amount of the unused credit which may be taken into account under subparagraph (A) for any taxable year shall not exceed the amount (if any) by which the applicable tax limit for such taxable year exceeds the sum of
(i) the credit allowable under subsection (a) for such taxable year determined without regard to this paragraph, and
(ii) the amounts which, by reason of this paragraph, are carried to such taxable year and are attributable to taxable years before the unused credit year.
(C) Applicable tax limit 
For purposes of this paragraph, the term applicable tax limit means
(i) in the case of a taxable year to which section 26 (a)(2) applies, the limitation imposed by section 26 (a)(2) for the taxable year reduced by the sum of the credits allowable under this subpart (other than this section and sections 23, 25D, and 1400C), and
(ii) in the case of a taxable year to which section 26 (a)(2) does not apply, the limitation imposed by section 26 (a)(1) for the taxable year reduced by the sum of the credits allowable under this subpart (other than this section and sections 23, 24, 25B, 25D, and 1400C).
(2) Indebtedness not treated as certified where certain requirements not in fact met 
Subsection (a) shall not apply to any indebtedness if all the requirements of subsection (c)(1), (d), (e), (f), and (i) of section 143 and clauses (iv), (v), and (vii) of subsection (c)(2)(A), were not in fact met with respect to such indebtedness. Except to the extent provided in regulations, the requirements described in the preceding sentence shall be treated as met if there is a certification, under penalty of perjury, that such requirements are met.
(3) Period for which certificate in effect 

(A) In general 
Except as provided in subparagraph (B), a mortgage credit certificate shall be treated as in effect with respect to interest attributable to the period
(i) beginning on the date such certificate is issued, and
(ii) ending on the earlier of the date on which
(I) the certificate is revoked by the issuing authority, or
(II) the residence to which such certificate relates ceases to be the principal residence of the individual to whom the certificate relates.
(B) Certificate invalid unless indebtedness incurred within certain period 
A certificate shall not apply to any indebtedness which is incurred after the close of the second calendar year following the calendar year for which the issuing authority made the applicable election under subsection (c)(2)(A)(ii).
(C) Notice to Secretary when certificate revoked 
Any issuing authority which revokes any mortgage credit certificate shall notify the Secretary of such revocation at such time and in such manner as the Secretary shall prescribe by regulations.
(4) Reissuance of mortgage credit certificates 
The Secretary may prescribe regulations which allow the administrator of a mortgage credit certificate program to reissue a mortgage credit certificate specifying a certified mortgage indebtedness that replaces the outstanding balance of the certified mortgage indebtedness specified on the original certificate to any taxpayer to whom the original certificate was issued, under such terms and conditions as the Secretary determines are necessary to ensure that the amount of the credit allowable under subsection (a) with respect to such reissued certificate is equal to or less than the amount of credit which would be allowable under subsection (a) with respect to the original certificate for any taxable year ending after such reissuance.
(5) Public notice that certificates will be issued 
At least 90 days before any mortgage credit certificate is to be issued after a qualified mortgage credit certificate program, the issuing authority shall provide reasonable public notice of
(A) the eligibility requirements for such certificate,
(B) the methods by which such certificates are to be issued, and
(C) such other information as the Secretary may require.
(6) Interest paid or accrued to related persons 
No credit shall be allowed under subsection (a) for any interest paid or accrued to a person who is a related person to the taxpayer (within the meaning of section 144 (a)(3)(A)).
(7) Principal residence 
The term principal residence has the same meaning as when used in section 121.
(8) Qualified rehabilitation and home improvement 

(A) Qualified rehabilitation 
The term qualified rehabilitation has the meaning given such term by section 143 (k)(5)(B).
(B) Qualified home improvement 
The term qualified home improvement means an alteration, repair, or improvement described in section 143 (k)(4).
(9) Qualified mortgage bond 
The term qualified mortgage bond has the meaning given such term by section 143 (a)(1).
(10) Manufactured housing 
For purposes of this section, the term single family residence includes any manufactured home which has a minimum of 400 square feet of living space and a minimum width in excess of 102 inches and which is of a kind customarily used at a fixed location. Nothing in the preceding sentence shall be construed as providing that such a home will be taken into account in making determinations under section 143.
(f) Reduction in aggregate amount of qualified mortgage bonds which may be issued where certain requirements not met 

(1) In general 
If for any calendar year any mortgage credit certificate program which satisfies procedural requirements with respect to volume limitations prescribed by the Secretary fails to meet the requirements of paragraph (2) of subsection (d), such requirements shall be treated as satisfied with respect to any certified indebtedness of such program, but the applicable State ceiling under subsection (d) of section 146 for the State in which such program operates shall be reduced by 1.25 times the correction amount with respect to such failure. Such reduction shall be applied to such State ceiling for the calendar year following the calendar year in which the Secretary determines the correction amount with respect to such failure.
(2) Correction amount 

(A) In general 
For purposes of paragraph (1), the term correction amount means an amount equal to the excess credit amount divided by 0.25.
(B) Excess credit amount 

(i) In general For purposes of subparagraph (A)(ii), the term excess credit amount means the excess of
(I) the credit amount for any mortgage credit certificate program, over
(II) the amount which would have been the credit amount for such program had such program met the requirements of paragraph (2) of subsection (d).
(ii) Credit amount For purposes of clause (i), the term credit amount means the sum of the products determined under clauses (i) and (ii) of subsection (d)(2)(A).
(3) Special rule for States having constitutional home rule cities 
In the case of a State having one or more constitutional home rule cities (within the meaning of section 146 (d)(3)(C)), the reduction in the State ceiling by reason of paragraph (1) shall be allocated to the constitutional home rule city, or to the portion of the State not within such city, whichever caused the reduction.
(4) Exception where certification program 
The provisions of this subsection shall not apply in any case in which there is a certification program which is designed to ensure that the requirements of this section are met and which meets such requirements as the Secretary may by regulations prescribe.
(5) Waiver 
The Secretary may waive the application of paragraph (1) in any case in which he determines that the failure is due to reasonable cause.
(g) Reporting requirements 
Each person who makes a loan which is a certified indebtedness amount under any mortgage credit certificate shall file a report with the Secretary containing
(1) the name, address, and social security account number of the individual to which the certificate was issued,
(2) the certificates issuer, date of issue, certified indebtedness amount, and certificate credit rate, and
(3) such other information as the Secretary may require by regulations.

Each person who issues a mortgage credit certificate shall file a report showing such information as the Secretary shall by regulations prescribe. Any such report shall be filed at such time and in such manner as the Secretary may require by regulations.

(h) Regulations; contracts 

(1) Regulations 
The Secretary shall prescribe such regulations as may be necessary to carry out the purposes of this section, including regulations which may require recipients of mortgage credit certificates to pay a reasonable processing fee to defray the expenses incurred in administering the program.
(2) Contracts 
The Secretary is authorized to enter into contracts with any person to provide services in connection with the administration of this section.
(i) Recapture of portion of Federal subsidy from use of mortgage credit certificates 
For provisions increasing the tax imposed by this chapter to recapture a portion of the Federal subsidy from the use of mortgage credit certificates, see section 143 (m).

26 USC 25A - Hope and Lifetime Learning credits

(a) Allowance of credit 
In the case of an individual, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year the amount equal to the sum of
(1) the Hope Scholarship Credit, plus
(2) the Lifetime Learning Credit.
(b) Hope Scholarship Credit 

(1) Per student credit 
In the case of any eligible student for whom an election is in effect under this section for any taxable year, the Hope Scholarship Credit is an amount equal to the sum of
(A) 100 percent of so much of the qualified tuition and related expenses paid by the taxpayer during the taxable year (for education furnished to the eligible student during any academic period beginning in such taxable year) as does not exceed $1,000, plus
(B) 50 percent of such expenses so paid as exceeds $1,000 but does not exceed the applicable limit.
(2) Limitations applicable to Hope Scholarship Credit 

(A) Credit allowed only for 2 taxable years 
An election to have this section apply with respect to any eligible student for purposes of the Hope Scholarship Credit under subsection (a)(1) may not be made for any taxable year if such an election (by the taxpayer or any other individual) is in effect with respect to such student for any 2 prior taxable years.
(B) Credit allowed for year only if individual is at least 1/2 time student for portion of year 
The Hope Scholarship Credit under subsection (a)(1) shall not be allowed for a taxable year with respect to the qualified tuition and related expenses of an individual unless such individual is an eligible student for at least one academic period which begins during such year.
(C) Credit allowed only for first 2 years of postsecondary education 
The Hope Scholarship Credit under subsection (a)(1) shall not be allowed for a taxable year with respect to the qualified tuition and related expenses of an eligible student if the student has completed (before the beginning of such taxable year) the first 2 years of postsecondary education at an eligible educational institution.
(D) Denial of credit if student convicted of a felony drug offense 
The Hope Scholarship Credit under subsection (a)(1) shall not be allowed for qualified tuition and related expenses for the enrollment or attendance of a student for any academic period if such student has been convicted of a Federal or State felony offense consisting of the possession or distribution of a controlled substance before the end of the taxable year with or within which such period ends.
(3) Eligible student 
For purposes of this subsection, the term eligible student means, with respect to any academic period, a student who
(A) meets the requirements of section 484(a)(1) of the Higher Education Act of 1965 (20 U.S.C. 1091 (a)(1)), as in effect on the date of the enactment of this section, and
(B) is carrying at least 1/2 the normal full-time work load for the course of study the student is pursuing.
(4) Applicable limit 
For purposes of paragraph (1)(B), the applicable limit for any taxable year is an amount equal to 2 times the dollar amount in effect under paragraph (1)(A) for such taxable year.
(c) Lifetime Learning Credit 

(1) Per taxpayer credit 
The Lifetime Learning Credit for any taxpayer for any taxable year is an amount equal to 20 percent of so much of the qualified tuition and related expenses paid by the taxpayer during the taxable year (for education furnished during any academic period beginning in such taxable year) as does not exceed $10,000 ($5,000 in the case of taxable years beginning before January 1, 2003).
(2) Special rules for determining expenses 

(A) Coordination with Hope Scholarship 
The qualified tuition and related expenses with respect to an individual who is an eligible student for whom a Hope Scholarship Credit under subsection (a)(1) is allowed for the taxable year shall not be taken into account under this subsection.
(B) Expenses eligible for Lifetime Learning Credit 
For purposes of paragraph (1), qualified tuition and related expenses shall include expenses described in subsection (f)(1) with respect to any course of instruction at an eligible educational institution to acquire or improve job skills of the individual.
(d) Limitation based on modified adjusted gross income 

(1) In general 
The amount which would (but for this subsection) be taken into account under subsection (a) for the taxable year shall be reduced (but not below zero) by the amount determined under paragraph (2).
(2) Amount of reduction 
The amount determined under this paragraph is the amount which bears the same ratio to the amount which would be so taken into account as
(A) the excess of
(i) the taxpayers modified adjusted gross income for such taxable year, over
(ii) $40,000 ($80,000 in the case of a joint return), bears to
(B) $10,000 ($20,000 in the case of a joint return).
(3) Modified adjusted gross income 
The term modified adjusted gross income means the adjusted gross income of the taxpayer for the taxable year increased by any amount excluded from gross income under section 911, 931, or 933.
(e) Election not to have section apply 
A taxpayer may elect not to have this section apply with respect to the qualified tuition and related expenses of an individual for any taxable year.
(f) Definitions 
For purposes of this section
(1) Qualified tuition and related expenses 

(A) In general 
The term qualified tuition and related expenses means tuition and fees required for the enrollment or attendance of
(i) the taxpayer,
(ii) the taxpayers spouse, or
(iii) any dependent of the taxpayer with respect to whom the taxpayer is allowed a deduction under section 151,

at an eligible educational institution for courses of instruction of such individual at such institution.

(B) Exception for education involving sports, etc. 
Such term does not include expenses with respect to any course or other education involving sports, games, or hobbies, unless such course or other education is part of the individuals degree program.
(C) Exception for nonacademic fees 
Such term does not include student activity fees, athletic fees, insurance expenses, or other expenses unrelated to an individuals academic course of instruction.
(2) Eligible educational institution 
The term eligible educational institution means an institution
(A) which is described in section 481 of the Higher Education Act of 1965 (20 U.S.C. 1088), as in effect on the date of the enactment of this section, and
(B) which is eligible to participate in a program under title IV of such Act.
(g) Special rules 

(1) Identification requirement 
No credit shall be allowed under subsection (a) to a taxpayer with respect to the qualified tuition and related expenses of an individual unless the taxpayer includes the name and taxpayer identification number of such individual on the return of tax for the taxable year.
(2) Adjustment for certain scholarships, etc. 
The amount of qualified tuition and related expenses otherwise taken into account under subsection (a) with respect to an individual for an academic period shall be reduced (before the application of subsections (b), (c), and (d)) by the sum of any amounts paid for the benefit of such individual which are allocable to such period as
(A) a qualified scholarship which is excludable from gross income under section 117,
(B) an educational assistance allowance under chapter 30, 31, 32, 34, or 35 of title 38, United States Code, or under chapter 1606 of title 10, United States Code, and
(C) a payment (other than a gift, bequest, devise, or inheritance within the meaning of section 102 (a)) for such individuals educational expenses, or attributable to such individuals enrollment at an eligible educational institution, which is excludable from gross income under any law of the United States.
(3) Treatment of expenses paid by dependent 
If a deduction under section 151 with respect to an individual is allowed to another taxpayer for a taxable year beginning in the calendar year in which such individuals taxable year begins
(A) no credit shall be allowed under subsection (a) to such individual for such individuals taxable year, and
(B) qualified tuition and related expenses paid by such individual during such individuals taxable year shall be treated for purposes of this section as paid by such other taxpayer.
(4) Treatment of certain prepayments 
If qualified tuition and related expenses are paid by the taxpayer during a taxable year for an academic period which begins during the first 3 months following such taxable year, such academic period shall be treated for purposes of this section as beginning during such taxable year.
(5) Denial of double benefit 
No credit shall be allowed under this section for any expense for which a deduction is allowed under any other provision of this chapter.
(6) No credit for married individuals filing separate returns 
If the taxpayer is a married individual (within the meaning of section 7703), this section shall apply only if the taxpayer and the taxpayers spouse file a joint return for the taxable year.
(7) Nonresident aliens 
If the taxpayer is a nonresident alien individual for any portion of the taxable year, this section shall apply only if such individual is treated as a resident alien of the United States for purposes of this chapter by reason of an election under subsection (g) or (h) of section 6013.
(h) Inflation adjustments 

(1) Dollar limitation on amount of credit 

(A) In general 
In the case of a taxable year beginning after 2001, each of the $1,000 amounts under subsection (b)(1) shall be increased by an amount equal to
(i) such dollar amount, multiplied by
(ii) the cost-of-living adjustment determined under section 1 (f)(3) for the calendar year in which the taxable year begins, determined by substituting calendar year 2000 for calendar year 1992 in subparagraph (B) thereof.
(B) Rounding 
If any amount as adjusted under subparagraph (A) is not a multiple of $100, such amount shall be rounded to the next lowest multiple of $100.
(2) Income limits 

(A) In general 
In the case of a taxable year beginning after 2001, the $40,000 and $80,000 amounts in subsection (d)(2) shall each be increased by an amount equal to
(i) such dollar amount, multiplied by
(ii) the cost-of-living adjustment determined under section 1 (f)(3) for the calendar year in which the taxable year begins, determined by substituting calendar year 2000 for calendar year 1992 in subparagraph (B) thereof.
(B) Rounding 
If any amount as adjusted under subparagraph (A) is not a multiple of $1,000, such amount shall be rounded to the next lowest multiple of $1,000.
(i) Regulations 
The Secretary may prescribe such regulations as may be necessary or appropriate to carry out this section, including regulations providing for a recapture of the credit allowed under this section in cases where there is a refund in a subsequent taxable year of any amount which was taken into account in determining the amount of such credit.

26 USC 25B - Elective deferrals and IRA contributions by certain individuals

(a) Allowance of credit 
In the case of an eligible individual, there shall be allowed as a credit against the tax imposed by this subtitle for the taxable year an amount equal to the applicable percentage of so much of the qualified retirement savings contributions of the eligible individual for the taxable year as do not exceed $2,000.
(b) Applicable percentage 
For purposes of this section
(1) Joint returns 
In the case of a joint return, the applicable percentage is
(A) if the adjusted gross income of the taxpayer is not over $30,000, 50 percent,
(B) if the adjusted gross income of the taxpayer is over $30,000 but not over $32,500, 20 percent,
(C) if the adjusted gross income of the taxpayer is over $32,500 but not over $50,000, 10 percent, and
(D) if the adjusted gross income of the taxpayer is over $50,000, zero percent.
(2) Other returns 
In the case of
(A) a head of household, the applicable percentage shall be determined under paragraph (1) except that such paragraph shall be applied by substituting for each dollar amount therein (as adjusted under paragraph (3)) a dollar amount equal to 75 percent of such dollar amount, and
(B) any taxpayer not described in paragraph (1) or subparagraph (A), the applicable percentage shall be determined under paragraph (1) except that such paragraph shall be applied by substituting for each dollar amount therein (as adjusted under paragraph (3)) a dollar amount equal to 50 percent of such dollar amount.
(3) Inflation adjustment 
In the case of any taxable year beginning in a calendar year after 2006, each of the dollar amounts in paragraph (1) shall be increased by an amount equal to
(A) such dollar amount, multiplied by
(B) the cost-of-living adjustment determined under section 1 (f)(3) for the calendar year in which the taxable year begins, determined by substituting calendar year 2005 for calendar year 1992 in subparagraph (B) thereof.

Any increase determined under the preceding sentence shall be rounded to the nearest multiple of $500.

(c) Eligible individual 
For purposes of this section
(1) In general 
The term eligible individual means any individual if such individual has attained the age of 18 as of the close of the taxable year.
(2) Dependents and full-time students not eligible 
The term eligible individual shall not include
(A) any individual with respect to whom a deduction under section 151 is allowed to another taxpayer for a taxable year beginning in the calendar year in which such individuals taxable year begins, and
(B) any individual who is a student (as defined in section 152 (f)(2)).
(d) Qualified retirement savings contributions 
For purposes of this section
(1) In general 
The term qualified retirement savings contributions means, with respect to any taxable year, the sum of
(A) the amount of the qualified retirement contributions (as defined in section 219 (e)) made by the eligible individual,
(B) the amount of
(i) any elective deferrals (as defined in section 402(g)(3)) of such individual, and
(ii) any elective deferral of compensation by such individual under an eligible deferred compensation plan (as defined in section 457(b)) of an eligible employer described in section 457 (e)(1)(A), and
(C) the amount of voluntary employee contributions by such individual to any qualified retirement plan (as defined in section 4974 (c)).
(2) Reduction for certain distributions 

(A) In general 
The qualified retirement savings contributions determined under paragraph (1) shall be reduced (but not below zero) by the aggregate distributions received by the individual during the testing period from any entity of a type to which contributions under paragraph (1) may be made. The preceding sentence shall not apply to the portion of any distribution which is not includible in gross income by reason of a trustee-to-trustee transfer or a rollover distribution.
(B) Testing period 
For purposes of subparagraph (A), the testing period, with respect to a taxable year, is the period which includes
(i) such taxable year,
(ii) the 2 preceding taxable years, and
(iii) the period after such taxable year and before the due date (including extensions) for filing the return of tax for such taxable year.
(C) Excepted distributions 
There shall not be taken into account under subparagraph (A)
(i) any distribution referred to in section 72 (p), 401 (k)(8), 401 (m)(6), 402 (g)(2), 404 (k), or 408 (d)(4), and
(ii) any distribution to which section 408A (d)(3) applies.
(D) Treatment of distributions received by spouse of individual 
For purposes of determining distributions received by an individual under subparagraph (A) for any taxable year, any distribution received by the spouse of such individual shall be treated as received by such individual if such individual and spouse file a joint return for such taxable year and for the taxable year during which the spouse receives the distribution.
(e) Adjusted gross income 
For purposes of this section, adjusted gross income shall be determined without regard to sections 911, 931, and 933.
(f) Investment in the contract 
Notwithstanding any other provision of law, a qualified retirement savings contribution shall not fail to be included in determining the investment in the contract for purposes of section 72 by reason of the credit under this section.
(g) Limitation based on amount of tax 
In the case of a taxable year to which section 26 (a)(2) does not apply, the credit allowed under subsection (a) for the taxable year shall not exceed the excess of
(1) the sum of the regular tax liability (as defined in section 26 (b)) plus the tax imposed by section 55, over
(2) the sum of the credits allowable under this subpart (other than this section and section 23) and section 27 for the taxable year.

26 USC 25C - Nonbusiness energy property

(a) Allowance of credit 
In the case of an individual, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the sum of
(1) 10 percent of the amount paid or incurred by the taxpayer for qualified energy efficiency improvements installed during such taxable year, and
(2) the amount of the residential energy property expenditures paid or incurred by the taxpayer during such taxable year.
(b) Limitations 

(1) Lifetime limitation 
The credit allowed under this section with respect to any taxpayer for any taxable year shall not exceed the excess (if any) of $500 over the aggregate credits allowed under this section with respect to such taxpayer for all prior taxable years.
(2) Windows 
In the case of amounts paid or incurred for components described in subsection (c)(2)(B) by any taxpayer for any taxable year, the credit allowed under this section with respect to such amounts for such year shall not exceed the excess (if any) of $200 over the aggregate credits allowed under this section with respect to such amounts for all prior taxable years.
(3) Limitation on residential energy property expenditures 
The amount of the credit allowed under this section by reason of subsection (a)(2) shall not exceed
(A) $50 for any advanced main air circulating fan,
(B) $150 for any qualified natural gas, propane, or oil furnace or hot water boiler, and
(C) $300 for any item of energy-efficient building property.
(c) Qualified energy efficiency improvements 
For purposes of this section
(1) In general 
The term qualified energy efficiency improvements means any energy efficient building envelope component which meets the prescriptive criteria for such component established by the 2000 International Energy Conservation Code, as such Code (including supplements) is in effect on the date of the enactment of this section (or, in the case of a metal roof with appropriate pigmented coatings which meet the Energy Star program requirements), if
(A) such component is installed in or on a dwelling unit located in the United States and owned and used by the taxpayer as the taxpayers principal residence (within the meaning of section 121),
(B) the original use of such component commences with the taxpayer, and
(C) such component reasonably can be expected to remain in use for at least 5 years.
(2) Building envelope component 
The term building envelope component means
(A) any insulation material or system which is specifically and primarily designed to reduce the heat loss or gain of a dwelling unit when installed in or on such dwelling unit,
(B) exterior windows (including skylights),
(C) exterior doors, and
(D) any metal roof installed on a dwelling unit, but only if such roof has appropriate pigmented coatings which are specifically and primarily designed to reduce the heat gain of such dwelling unit.
(3) Manufactured homes included 
The term dwelling unit includes a manufactured home which conforms to Federal Manufactured Home Construction and Safety Standards (part 3280 of title 24, Code of Federal Regulations).
(d) Residential energy property expenditures 
For purposes of this section
(1) In general 
The term residential energy property expenditures means expenditures made by the taxpayer for qualified energy property which is
(A) installed on or in connection with a dwelling unit located in the United States and owned and used by the taxpayer as the taxpayers principal residence (within the meaning of section 121), and
(B) originally placed in service by the taxpayer.

Such term includes expenditures for labor costs properly allocable to the onsite preparation, assembly, or original installation of the property.

(2) Qualified energy property 

(A) In general 
The term qualified energy property means
(i) energy-efficient building property,
(ii) a qualified natural gas, propane, or oil furnace or hot water boiler, or
(iii) an advanced main air circulating fan.
(B) Performance and quality standards 
Property described under subparagraph (A) shall meet the performance and quality standards, and the certification requirements (if any), which
(i) have been prescribed by the Secretary by regulations (after consultation with the Secretary of Energy or the Administrator of the Environmental Protection Agency, as appropriate), and
(ii) are in effect at the time of the acquisition of the property, or at the time of the completion of the construction, reconstruction, or erection of the property, as the case may be.
(C) Requirements for standards 
The standards and requirements prescribed by the Secretary under subparagraph (B)
(i) in the case of the energy efficiency ratio (EER) for central air conditioners and electric heat pumps
(I) shall require measurements to be based on published data which is tested by manufacturers at 95 degrees Fahrenheit, and
(II) may be based on the certified data of the Air Conditioning and Refrigeration Institute that are prepared in partnership with the Consortium for Energy Efficiency, and
(ii) in the case of geothermal heat pumps
(I) shall be based on testing under the conditions of ARI/ISO Standard 132561 for Water Source Heat Pumps or ARI 870 for Direct Expansion GeoExchange Heat Pumps (DX), as appropriate, and
(II) shall include evidence that water heating services have been provided through a desuperheater or integrated water heating system connected to the storage water heater tank.
(3) Energy-efficient building property 
The term energy-efficient building property means
(A) an electric heat pump water heater which yields an energy factor of at least 2.0 in the standard Department of Energy test procedure,
(B) an electric heat pump which has a heating seasonal performance factor (HSPF) of at least 9, a seasonal energy efficiency ratio (SEER) of at least 15, and an energy efficiency ratio (EER) of at least 13,
(C) a geothermal heat pump which
(i) in the case of a closed loop product, has an energy efficiency ratio (EER) of at least 14.1 and a heating coefficient of performance (COP) of at least 3.3,
(ii) in the case of an open loop product, has an energy efficiency ratio (EER) of at least 16.2 and a heating coefficient of performance (COP) of at least 3.6, and
(iii) in the case of a direct expansion (DX) product, has an energy efficiency ratio (EER) of at least 15 and a heating coefficient of performance (COP) of at least 3.5,
(D) a central air conditioner which achieves the highest efficiency tier established by the Consortium for Energy Efficiency, as in effect on January 1, 2006, and
(E) a natural gas, propane, or oil water heater which has an energy factor of at least 0.80.
(4) Qualified natural gas, propane, or oil furnace or hot water boiler 
The term qualified natural gas, propane, or oil furnace or hot water boiler means a natural gas, propane, or oil furnace or hot water boiler which achieves an annual fuel utilization efficiency rate of not less than 95.
(5) Advanced main air circulating fan 
The term advanced main air circulating fan means a fan used in a natural gas, propane, or oil furnace and which has an annual electricity use of no more than 2 percent of the total annual energy use of the furnace (as determined in the standard Department of Energy test procedures).
(e) Special rules 
For purposes of this section
(1) Application of rules 
Rules similar to the rules under paragraphs (4), (5), (6), (7), (8), and (9) of section 25D (e) shall apply.
(2) Joint ownership of energy items 

(A) In general 
Any expenditure otherwise qualifying as an expenditure under this section shall not be treated as failing to so qualify merely because such expenditure was made with respect to two or more dwelling units.
(B) Limits applied separately 
In the case of any expenditure described in subparagraph (A), the amount of the credit allowable under subsection (a) shall (subject to paragraph (1)) be computed separately with respect to the amount of the expenditure made for each dwelling unit.
(f) Basis adjustments 
For purposes of this subtitle, if a credit is allowed under this section for any expenditure with respect to any property, the increase in the basis of such property which would (but for this subsection) result from such expenditure shall be reduced by the amount of the credit so allowed.
(g) Termination 
This section shall not apply with respect to any property placed in service after December 31, 2007.

26 USC 25D - Residential energy efficient property

(a) Allowance of credit 
In the case of an individual, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the sum of
(1) 30 percent of the qualified solar electric property expenditures made by the taxpayer during such year,
(2) 30 percent of the qualified solar water heating property expenditures made by the taxpayer during such year, and
(3) 30 percent of the qualified fuel cell property expenditures made by the taxpayer during such year.
(b) Limitations 

(1) Maximum credit 
The credit allowed under subsection (a) (determined without regard to subsection (c)) for any taxable year shall not exceed
(A) $2,000 with respect to any qualified solar electric property expenditures,
(B) $2,000 with respect to any qualified solar water heating property expenditures, and
(C) $500 with respect to each half kilowatt of capacity of qualified fuel cell property (as defined in section 48 (c)(1)) for which qualified fuel cell property expenditures are made.
(2) Certification of solar water heating property 
No credit shall be allowed under this section for an item of property described in subsection (d)(1) unless such property is certified for performance by the non-profit Solar Rating Certification Corporation or a comparable entity endorsed by the government of the State in which such property is installed.
(c) Carryforward of unused credit 

(1) Rule for years in which all personal credits allowed against regular and alternative minimum tax 
In the case of a taxable year to which section 26 (a)(2) applies, if the credit allowable under subsection (a) exceeds the limitation imposed by section 26 (a)(2) for such taxable year reduced by the sum of the credits allowable under this subpart (other than this section), such excess shall be carried to the succeeding taxable year and added to the credit allowable under subsection (a) for such succeeding taxable year.
(2) Rule for other years 
In the case of a taxable year to which section 26 (a)(2) does not apply, if the credit allowable under subsection (a) exceeds the limitation imposed by section 26 (a)(1) for such taxable year reduced by the sum of the credits allowable under this subpart (other than this section and sections 23, 24, and 25B), such excess shall be carried to the succeeding taxable year and added to the credit allowable under subsection (a) for such succeeding taxable year.
(d) Definitions 
For purposes of this section
(1) Qualified solar water heating property expenditure 
The term qualified solar water heating property expenditure means an expenditure for property to heat water for use in a dwelling unit located in the United States and used as a residence by the taxpayer if at least half of the energy used by such property for such purpose is derived from the sun.
(2) Qualified solar electric property expenditure 
The term qualified solar electric property expenditure means an expenditure for property which uses solar energy to generate electricity for use in a dwelling unit located in the United States and used as a residence by the taxpayer.
(3) Qualified fuel cell property expenditure 
The term qualified fuel cell property expenditure means an expenditure for qualified fuel cell property (as defined in section 48 (c)(1)) installed on or in connection with a dwelling unit located in the United States and used as a principal residence (within the meaning of section 121) by the taxpayer.
(e) Special rules 
For purposes of this section
(1) Labor costs 
Expenditures for labor costs properly allocable to the onsite preparation, assembly, or original installation of the property described in subsection (d) and for piping or wiring to interconnect such property to the dwelling unit shall be taken into account for purposes of this section.
(2) Solar panels 
No expenditure relating to a solar panel or other property installed as a roof (or portion thereof) shall fail to be treated as property described in paragraph (1) or (2) of subsection (d) solely because it constitutes a structural component of the structure on which it is installed.
(3) Swimming pools, etc., used as storage medium 
Expenditures which are properly allocable to a swimming pool, hot tub, or any other energy storage medium which has a function other than the function of such storage shall not be taken into account for purposes of this section.
(4) Dollar amounts in case of joint occupancy 
In the case of any dwelling unit which is jointly occupied and used during any calendar year as a residence by two or more individuals the following rules shall apply:
(A) Maximum expenditures.— 
The maximum amount of expenditures which may be taken into account under subsection (a) by all such individuals with respect to such dwelling unit during such calendar year shall be
(i) $6,667 in the case of any qualified solar electric property expenditures,
(ii) $6,667 in the case of any qualified solar water heating property expenditures, and
(iii) $1,667 in the case of each half kilowatt of capacity of qualified fuel cell property (as defined in section 48 (c)(1)) for which qualified fuel cell property expenditures are made.
(B) Allocation of expenditures.— 
The expenditures allocated to any individual for the taxable year in which such calendar year ends shall be an amount equal to the lesser of
(i) the amount of expenditures made by such individual with respect to such dwelling during such calendar year, or
(ii) the maximum amount of such expenditures set forth in subparagraph (A) multiplied by a fraction
(I) the numerator of which is the amount of such expenditures with respect to such dwelling made by such individual during such calendar year, and
(II) the denominator of which is the total expenditures made by all such individuals with respect to such dwelling during such calendar year.
(C) Subparagraphs (A) and (B) shall be applied separately with respect to expenditures described in paragraphs (1), (2), and (3) of subsection (d).
(5) Tenant-stockholder in cooperative housing corporation 
In the case of an individual who is a tenant-stockholder (as defined in section 216) in a cooperative housing corporation (as defined in such section), such individual shall be treated as having made his tenant-stockholders proportionate share (as defined in section 216(b)(3)) of any expenditures of such corporation.
(6) Condominiums 

(A) In general 
In the case of an individual who is a member of a condominium management association with respect to a condominium which the individual owns, such individual shall be treated as having made the individuals proportionate share of any expenditures of such association.
(B) Condominium management association 
For purposes of this paragraph, the term condominium management association means an organization which meets the requirements of paragraph (1) of section 528 (c) (other than subparagraph (E) thereof) with respect to a condominium project substantially all of the units of which are used as residences.
(7) Allocation in certain cases 
If less than 80 percent of the use of an item is for nonbusiness purposes, only that portion of the expenditures for such item which is properly allocable to use for nonbusiness purposes shall be taken into account.
(8) When expenditure made; amount of expenditure 

(A) In general 
Except as provided in subparagraph (B), an expenditure with respect to an item shall be treated as made when the original installation of the item is completed.
(B) Expenditures part of building construction 
In the case of an expenditure in connection with the construction or reconstruction of a structure, such expenditure shall be treated as made when the original use of the constructed or reconstructed structure by the taxpayer begins.
(9) Property financed by subsidized energy financing 
For purposes of determining the amount of expenditures made by any individual with respect to any dwelling unit, there shall not be taken into account expenditures which are made from subsidized energy financing (as defined in section 48 (a)(4)(C)).
(f) Basis adjustments 
For purposes of this subtitle, if a credit is allowed under this section for any expenditure with respect to any property, the increase in the basis of such property which would (but for this subsection) result from such expenditure shall be reduced by the amount of the credit so allowed.
(g) Termination 
The credit allowed under this section shall not apply to property placed in service after December 31, 2008.

26 USC 26 - Limitation based on tax liability; definition of tax liability

(a) Limitation based on amount of tax 

(1) In general 
The aggregate amount of credits allowed by this subpart (other than sections 23, 24, and 25B) for the taxable year shall not exceed the excess (if any) of
(A) the taxpayers regular tax liability for the taxable year, over
(B) the tentative minimum tax for the taxable year (determined without regard to the alternative minimum tax foreign tax credit).

For purposes of subparagraph (B), the taxpayers tentative minimum tax for any taxable year beginning during 1999 shall be treated as being zero.

(2) Special rule for taxable years 2000 through 2007 
For purposes of any taxable year beginning during 2000, 2001, 2002, 2003, 2004, 2005, 2006, or 2007, the aggregate amount of credits allowed by this subpart for the taxable year shall not exceed the sum of
(A) the taxpayers regular tax liability for the taxable year reduced by the foreign tax credit allowable under section 27 (a), and
(B) the tax imposed by section 55 (a) for the taxable year.
(b) Regular tax liability 
For purposes of this part
(1) In general 
The term regular tax liability means the tax imposed by this chapter for the taxable year.
(2) Exception for certain taxes 
For purposes of paragraph (1), any tax imposed by any of the following provisions shall not be treated as tax imposed by this chapter:
(A) section 55 (relating to minimum tax),
(B) section 59A (relating to environmental tax),
(C) subsection (m)(5)(B), (q), (t), or (v) of section 72 (relating to additional taxes on certain distributions),
(D) section 143 (m) (relating to recapture of proration of Federal subsidy from use of mortgage bonds and mortgage credit certificates),
(E) section 530 (d)(4) (relating to additional tax on certain distributions from Coverdell education savings accounts),
(F) section 531 (relating to accumulated earnings tax),
(G) section 541 (relating to personal holding company tax),
(H) section 1351 (d)(1) (relating to recoveries of foreign expropriation losses),
(I) section 1374 (relating to tax on certain built-in gains of S corporations),
(J) section 1375 (relating to tax imposed when passive investment income of corporation having subchapter C earnings and profits exceeds 25 percent of gross receipts),
(K) subparagraph (A) of section 7518 (g)(6) (relating to nonqualified withdrawals from capital construction funds taxed at highest marginal rate),
(L) sections 871 (a) and 881 (relating to certain income of nonresident aliens and foreign corporations),
(M) section 860E (e) (relating to taxes with respect to certain residual interests),
(N) section 884 (relating to branch profits tax),
(O) sections 453 (l)(3) and 453A (c) (relating to interest on certain deferred tax liabilities),
(P) section 860K1 (relating to treatment of transfers of high-yield interests to disqualified holders),
(Q) section 220 (f)(4) (relating to additional tax on Archer MSA distributions not used for qualified medical expenses),
(R) section 138 (c)(2) (relating to penalty for distributions from Medicare Advantage MSA not used for qualified medical expenses if minimum balance not maintained),
(S) sections 106 (e)(3)(A)(ii), 223 (b)(8)(B)(i)(II), and 408 (d)(9)(D)(i)(II) (relating to certain failures to maintain high deductible health plan coverage),
(T) section 170 (o)(3)(B) (relating to recapture of certain deductions for fractional gifts),
(U) section 223 (f)(4) (relating to additional tax on health savings account distributions not used for qualified medical expenses), and
(V) subsections (a)(1)(B)(i) and (b)(4)(A) of section 409A (relating to interest and additional tax with respect to certain deferred compensation).
(c) Tentative minimum tax 
For purposes of this part, the term tentative minimum tax means the amount determined under section 55 (b)(1).
[1] See References in Text note below.

Subpart B - Other Credits

26 USC 27 - Taxes of foreign countries and possessions of the United States; possession tax credit

(a) Foreign tax credit 
The amount of taxes imposed by foreign countries and possessions of the United States shall be allowed as a credit against the tax imposed by this chapter to the extent provided in section 901.
(b) Section 936 credit 
In the case of a domestic corporation, the amount provided by section 936 (relating to Puerto Rico and possession tax credit) shall be allowed as a credit against the tax imposed by this chapter.

26 USC 28 - Renumbered 45C]

26 USC 29 - Renumbered 45K]

26 USC 30 - Credit for qualified electric vehicles

(a) Allowance of credit 
There shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to 10 percent of the cost of any qualified electric vehicle placed in service by the taxpayer during the taxable year.
(b) Limitations 

(1) Limitation per vehicle 
The amount of the credit allowed under subsection (a) for any vehicle shall not exceed $4,000.
(2) Phaseout 
In the case of any qualified electric vehicle placed in service after December 31, 2005, the credit otherwise allowable under subsection (a) (determined after the application of paragraph (1)) shall be reduced by 75 percent.
(3) Application with other credits 
The credit allowed by subsection (a) for any taxable year shall not exceed the excess (if any) of
(A) the regular tax for the taxable year reduced by the sum of the credits allowable under subpart A and section 27, over
(B) the tentative minimum tax for the taxable year.
(c) Qualified electric vehicle 
For purposes of this section
(1) In general 
The term qualified electric vehicle means any motor vehicle
(A) which is powered primarily by an electric motor drawing current from rechargeable batteries, fuel cells, or other portable sources of electrical current,
(B) the original use of which commences with the taxpayer, and
(C) which is acquired for use by the taxpayer and not for resale.
(2) Motor vehicle 
For purposes of paragraph (1), the term motor vehicle means any vehicle which is manufactured primarily for use on public streets, roads, and highways (not including a vehicle operated exclusively on a rail or rails) and which has at least 4 wheels.
(d) Special rules 

(1) Basis reduction 
The basis of any property for which a credit is allowable under subsection (a) shall be reduced by the amount of such credit (determined without regard to subsection (b)(3)).
(2) Recapture 
The Secretary shall, by regulations, provide for recapturing the benefit of any credit allowable under subsection (a) with respect to any property which ceases to be property eligible for such credit.
(3) Property used outside United States, etc., not qualified 
No credit shall be allowed under subsection (a) with respect to any property referred to in section 50 (b) or with respect to the portion of the cost of any property taken into account under section 179.
(4) Election to not take credit 
No credit shall be allowed under subsection (a) for any vehicle if the taxpayer elects to not have this section apply to such vehicle.
(e) Termination 
This section shall not apply to any property placed in service after December 31, 2006.

26 USC 30A - Puerto Rico economic activity credit

(a) Allowance of credit 

(1) In general 
Except as otherwise provided in this section, if the conditions of both paragraph (1) and paragraph (2) of subsection (b) are satisfied with respect to a qualified domestic corporation, there shall be allowed as a credit against the tax imposed by this chapter an amount equal to the portion of the tax which is attributable to the taxable income, from sources without the United States, from
(A) the active conduct of a trade or business within Puerto Rico, or
(B) the sale or exchange of substantially all of the assets used by the taxpayer in the active conduct of such trade or business.

In the case of any taxable year beginning after December 31, 2001, the aggregate amount of taxable income taken into account under the preceding sentence (and in applying subsection (d)) shall not exceed the adjusted base period income of such corporation, as determined in the same manner as under section 936 (j).

(2) Qualified domestic corporation 
For purposes of paragraph (1), the term qualified domestic corporation means a domestic corporation
(A) which is an existing credit claimant with respect to Puerto Rico, and
(B) with respect to which section 936 (a)(4)(B) does not apply for the taxable year.
(3) Separate application 
For purposes of determining
(A) whether a taxpayer is an existing credit claimant with respect to Puerto Rico, and
(B) the amount of the credit allowed under this section,

this section (and so much of section 936 as relates to this section) shall be applied separately with respect to Puerto Rico.

(b) Conditions which must be satisfied 
The conditions referred to in subsection (a) are
(1) 3-year period 
If 80 percent or more of the gross income of the qualified domestic corporation for the 3-year period immediately preceding the close of the taxable year (or for such part of such period immediately preceding the close of such taxable year as may be applicable) was derived from sources within a possession (determined without regard to section 904 (f)).
(2) Trade or business 
If 75 percent or more of the gross income of the qualified domestic corporation for such period or such part thereof was derived from the active conduct of a trade or business within a possession.
(c) Credit not allowed against certain taxes 
The credit provided by subsection (a) shall not be allowed against the tax imposed by
(1) section 59A (relating to environmental tax),
(2) section 531 (relating to the tax on accumulated earnings),
(3) section 541 (relating to personal holding company tax), or
(4) section 1351 (relating to recoveries of foreign expropriation losses).
(d) Limitations on credit for active business income 
The amount of the credit determined under subsection (a) for any taxable year shall not exceed the sum of the following amounts:
(1) 60 percent of the sum of
(A) the aggregate amount of the qualified domestic corporations qualified possession wages for such taxable year, plus
(B) the allocable employee fringe benefit expenses of the qualified domestic corporation for such taxable year.
(2) The sum of
(A) 15 percent of the depreciation allowances for the taxable year with respect to short-life qualified tangible property,
(B) 40 percent of the depreciation allowances for the taxable year with respect to medium-life qualified tangible property, and
(C) 65 percent of the depreciation allowances for the taxable year with respect to long-life qualified tangible property.
(3) If the qualified domestic corporation does not have an election to use the method described in section 936 (h)(5)(C)(ii) (relating to profit split) in effect for the taxable year, the amount of the qualified possession income taxes for the taxable year allocable to nonsheltered income.
(e) Administrative provisions 
For purposes of this title
(1) the provisions of section 936 (including any applicable election thereunder) shall apply in the same manner as if the credit under this section were a credit under section 936 (a)(1)(A) for a domestic corporation to which section 936 (a)(4)(A) applies,
(2) the credit under this section shall be treated in the same manner as the credit under section 936, and
(3) a corporation to which this section applies shall be treated in the same manner as if it were a corporation electing the application of section 936.
(f) Denial of double benefit 
Any wages or other expenses taken into account in determining the credit under this section may not be taken into account in determining the credit under section 41.
(g) Definitions 
For purposes of this section, any term used in this section which is also used in section 936 shall have the same meaning given such term by section 936.
(h) Application of section 
This section shall apply to taxable years beginning after December 31, 1995, and before January 1, 2006.

26 USC 30B - Alternative motor vehicle credit

(a) Allowance of credit 
There shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the sum of
(1) the new qualified fuel cell motor vehicle credit determined under subsection (b),
(2) the new advanced lean burn technology motor vehicle credit determined under subsection (c),
(3) the new qualified hybrid motor vehicle credit determined under subsection (d), and
(4) the new qualified alternative fuel motor vehicle credit determined under subsection (e).
(b) New qualified fuel cell motor vehicle credit 

(1) In general 
For purposes of subsection (a), the new qualified fuel cell motor vehicle credit determined under this subsection with respect to a new qualified fuel cell motor vehicle placed in service by the taxpayer during the taxable year is
(A) $8,000 ($4,000 in the case of a vehicle placed in service after December 31, 2009), if such vehicle has a gross vehicle weight rating of not more than 8,500 pounds,
(B) $10,000, if such vehicle has a gross vehicle weight rating of more than 8,500 pounds but not more than 14,000 pounds,
(C) $20,000, if such vehicle has a gross vehicle weight rating of more than 14,000 pounds but not more than 26,000 pounds, and
(D) $40,000, if such vehicle has a gross vehicle weight rating of more than 26,000 pounds.
(2) Increase for fuel efficiency 

(A) In general 
The amount determined under paragraph (1)(A) with respect to a new qualified fuel cell motor vehicle which is a passenger automobile or light truck shall be increased by
(i) $1,000, if such vehicle achieves at least 150 percent but less than 175 percent of the 2002 model year city fuel economy,
(ii) $1,500, if such vehicle achieves at least 175 percent but less than 200 percent of the 2002 model year city fuel economy,
(iii) $2,000, if such vehicle achieves at least 200 percent but less than 225 percent of the 2002 model year city fuel economy,
(iv) $2,500, if such vehicle achieves at least 225 percent but less than 250 percent of the 2002 model year city fuel economy,
(v) $3,000, if such vehicle achieves at least 250 percent but less than 275 percent of the 2002 model year city fuel economy,
(vi) $3,500, if such vehicle achieves at least 275 percent but less than 300 percent of the 2002 model year city fuel economy, and
(vii) $4,000, if such vehicle achieves at least 300 percent of the 2002 model year city fuel economy.
(B) 2002 model year city fuel economy 
For purposes of subparagraph (A), the 2002 model year city fuel economy with respect to a vehicle shall be determined in accordance with the following tables:
(i) In the case of a passenger automobile: The 2002 model year city If vehicle inertia weight class is: fuel economy is: 1,500 or 1,750 lbs 45.2 mpg 2,000 lbs 39.6 mpg 2,250 lbs 35.2 mpg 2,500 lbs 31.7 mpg 2,750 lbs 28.8 mpg 3,000 lbs 26.4 mpg 3,500 lbs 22.6 mpg 4,000 lbs 19.8 mpg 4,500 lbs 17.6 mpg 5,000 lbs 15.9 mpg 5,500 lbs 14.4 mpg 6,000 lbs 13.2 mpg 6,500 lbs 12.2 mpg 7,000 to 8,500 lbs 11.3 mpg.
(ii) In the case of a light truck: The 2002 model year city If vehicle inertia weight class is: fuel economy is: 1,500 or 1,750 lbs 39.4 mpg 2,000 lbs 35.2 mpg 2,250 lbs 31.8 mpg 2,500 lbs 29.0 mpg 2,750 lbs 26.8 mpg 3,000 lbs 24.9 mpg 3,500 lbs 21.8 mpg 4,000 lbs 19.4 mpg 4,500 lbs 17.6 mpg 5,000 lbs 16.1 mpg 5,500 lbs 14.8 mpg 6,000 lbs 13.7 mpg 6,500 lbs 12.8 mpg 7,000 to 8,500 lbs 12.1 mpg.
(C) Vehicle inertia weight class 
For purposes of subparagraph (B), the term vehicle inertia weight class has the same meaning as when defined in regulations prescribed by the Administrator of the Environmental Protection Agency for purposes of the administration of title II of the Clean Air Act (42 U.S.C. 7521 et seq.).
(3) New qualified fuel cell motor vehicle 
For purposes of this subsection, the term new qualified fuel cell motor vehicle means a motor vehicle
(A) which is propelled by power derived from 1 or more cells which convert chemical energy directly into electricity by combining oxygen with hydrogen fuel which is stored on board the vehicle in any form and may or may not require reformation prior to use,
(B) which, in the case of a passenger automobile or light truck, has received on or after the date of the enactment of this section a certificate that such vehicle meets or exceeds the Bin 5 Tier II emission level established in regulations prescribed by the Administrator of the Environmental Protection Agency under section 202(i) of the Clean Air Act for that make and model year vehicle,
(C) the original use of which commences with the taxpayer,
(D) which is acquired for use or lease by the taxpayer and not for resale, and
(E) which is made by a manufacturer.
(c) New advanced lean burn technology motor vehicle credit 

(1) In general 
For purposes of subsection (a), the new advanced lean burn technology motor vehicle credit determined under this subsection for the taxable year is the credit amount determined under paragraph (2) with respect to a new advanced lean burn technology motor vehicle placed in service by the taxpayer during the taxable year.
(2) Credit amount 

(A) Fuel economy 

(i) In general The credit amount determined under this paragraph shall be determined in accordance with the following table:
(ii) 2002 model year city fuel economy For purposes of clause (i), the 2002 model year city fuel economy with respect to a vehicle shall be determined on a gasoline gallon equivalent basis as determined by the Administrator of the Environmental Protection Agency using the tables provided in subsection (b)(2)(B) with respect to such vehicle.
(B) Conservation credit 
The amount determined under subparagraph (A) with respect to a new advanced lean burn technology motor vehicle shall be increased by the conservation credit amount determined in accordance with the following table:
(3) New advanced lean burn technology motor vehicle 
For purposes of this subsection, the term new advanced lean burn technology motor vehicle means a passenger automobile or a light truck
(A) with an internal combustion engine which
(i) is designed to operate primarily using more air than is necessary for complete combustion of the fuel,
(ii) incorporates direct injection,
(iii) achieves at least 125 percent of the 2002 model year city fuel economy,
(iv) for 2004 and later model vehicles, has received a certificate that such vehicle meets or exceeds
(I) in the case of a vehicle having a gross vehicle weight rating of 6,000 pounds or less, the Bin 5 Tier II emission standard established in regulations prescribed by the Administrator of the Environmental Protection Agency under section 202(i) of the Clean Air Act for that make and model year vehicle, and
(II) in the case of a vehicle having a gross vehicle weight rating of more than 6,000 pounds but not more than 8,500 pounds, the Bin 8 Tier II emission standard which is so established,
(B) the original use of which commences with the taxpayer,
(C) which is acquired for use or lease by the taxpayer and not for resale, and
(D) which is made by a manufacturer.
(4) Lifetime fuel savings 
For purposes of this subsection, the term lifetime fuel savings means, in the case of any new advanced lean burn technology motor vehicle, an amount equal to the excess (if any) of
(A) 120,000 divided by the 2002 model year city fuel economy for the vehicle inertia weight class, over
(B) 120,000 divided by the city fuel economy for such vehicle.
(d) New qualified hybrid motor vehicle credit 

(1) In general 
For purposes of subsection (a), the new qualified hybrid motor vehicle credit determined under this subsection for the taxable year is the credit amount determined under paragraph (2) with respect to a new qualified hybrid motor vehicle placed in service by the taxpayer during the taxable year.
(2) Credit amount 

(A) Credit amount for passenger automobiles and light trucks 
In the case of a new qualified hybrid motor vehicle which is a passenger automobile or light truck and which has a gross vehicle weight rating of not more than 8,500 pounds, the amount determined under this paragraph is the sum of the amounts determined under clauses (i) and (ii).
(i) Fuel economy The amount determined under this clause is the amount which would be determined under subsection (c)(2)(A) if such vehicle were a vehicle referred to in such subsection.
(ii) Conservation credit The amount determined under this clause is the amount which would be determined under subsection (c)(2)(B) if such vehicle were a vehicle referred to in such subsection.
(B) Credit amount for other motor vehicles 

(i) In general In the case of any new qualified hybrid motor vehicle to which subparagraph (A) does not apply, the amount determined under this paragraph is the amount equal to the applicable percentage of the qualified incremental hybrid cost of the vehicle as certified under clause (v).
(ii) Applicable percentage For purposes of clause (i), the applicable percentage is
(I) 20 percent if the vehicle achieves an increase in city fuel economy relative to a comparable vehicle of at least 30 percent but less than 40 percent,
(II) 30 percent if the vehicle achieves such an increase of at least 40 percent but less than 50 percent, and
(III) 40 percent if the vehicle achieves such an increase of at least 50 percent.
(iii) Qualified incremental hybrid cost For purposes of this subparagraph, the qualified incremental hybrid cost of any vehicle is equal to the amount of the excess of the manufacturers suggested retail price for such vehicle over such price for a comparable vehicle, to the extent such amount does not exceed
(I) $7,500, if such vehicle has a gross vehicle weight rating of not more than 14,000 pounds,
(II) $15,000, if such vehicle has a gross vehicle weight rating of more than 14,000 pounds but not more than 26,000 pounds, and
(III) $30,000, if such vehicle has a gross vehicle weight rating of more than 26,000 pounds.
(iv) Comparable vehicle For purposes of this subparagraph, the term comparable vehicle means, with respect to any new qualified hybrid motor vehicle, any vehicle which is powered solely by a gasoline or diesel internal combustion engine and which is comparable in weight, size, and use to such vehicle.
(v) Certification A certification described in clause (i) shall be made by the manufacturer and shall be determined in accordance with guidance prescribed by the Secretary. Such guidance shall specify procedures and methods for calculating fuel economy savings and incremental hybrid costs.
(3) New qualified hybrid motor vehicle 
For purposes of this subsection
(A) In general 
The term new qualified hybrid motor vehicle means a motor vehicle
(i) which draws propulsion energy from onboard sources of stored energy which are both
(I) an internal combustion or heat engine using consumable fuel, and
(II) a rechargeable energy storage system,
(ii) which, in the case of a vehicle to which paragraph (2)(A) applies, has received a certificate of conformity under the Clean Air Act and meets or exceeds the equivalent qualifying California low emission vehicle standard under section 243(e)(2) of the Clean Air Act for that make and model year, and
(I) in the case of a vehicle having a gross vehicle weight rating of 6,000 pounds or less, the Bin 5 Tier II emission standard established in regulations prescribed by the Administrator of the Environmental Protection Agency under section 202(i) of the Clean Air Act for that make and model year vehicle, and
(II) in the case of a vehicle having a gross vehicle weight rating of more than 6,000 pounds but not more than 8,500 pounds, the Bin 8 Tier II emission standard which is so established,
(iii) which has a maximum available power of at least
(I) 4 percent in the case of a vehicle to which paragraph (2)(A) applies,
(II) 10 percent in the case of a vehicle which has a gross vehicle weight rating of more than 8,500 pounds and not more than 14,000 pounds, and
(III) 15 percent in the case of a vehicle in excess of 14,000 pounds,
(iv) which, in the case of a vehicle to which paragraph (2)(B) applies, has an internal combustion or heat engine which has received a certificate of conformity under the Clean Air Act as meeting the emission standards set in the regulations prescribed by the Administrator of the Environmental Protection Agency for 2004 through 2007 model year diesel heavy duty engines or ottocycle heavy duty engines, as applicable,
(v) the original use of which commences with the taxpayer,
(vi) which is acquired for use or lease by the taxpayer and not for resale, and
(vii) which is made by a manufacturer.

Such term shall not include any vehicle which is not a passenger automobile or light truck if such vehicle has a gross vehicle weight rating of less than 8,500 pounds.

(B) Consumable fuel 
For purposes of subparagraph (A)(i)(I), the term consumable fuel means any solid, liquid, or gaseous matter which releases energy when consumed by an auxiliary power unit.
(C) Maximum available power 

(i) Certain passenger automobiles and light trucks In the case of a vehicle to which paragraph (2)(A) applies, the term maximum available power means the maximum power available from the rechargeable energy storage system, during a standard 10 second pulse power or equivalent test, divided by such maximum power and the SAE net power of the heat engine.
(ii) Other motor vehicles In the case of a vehicle to which paragraph (2)(B) applies, the term maximum available power means the maximum power available from the rechargeable energy storage system, during a standard 10 second pulse power or equivalent test, divided by the vehicles total traction power. For purposes of the preceding sentence, the term total traction power means the sum of the peak power from the rechargeable energy storage system and the heat engine peak power of the vehicle, except that if such storage system is the sole means by which the vehicle can be driven, the total traction power is the peak power of such storage system.
(e) New qualified alternative fuel motor vehicle credit 

(1) Allowance of credit 
Except as provided in paragraph (5), the new qualified alternative fuel motor vehicle credit determined under this subsection is an amount equal to the applicable percentage of the incremental cost of any new qualified alternative fuel motor vehicle placed in service by the taxpayer during the taxable year.
(2) Applicable percentage 
For purposes of paragraph (1), the applicable percentage with respect to any new qualified alternative fuel motor vehicle is
(A) 50 percent, plus
(B) 30 percent, if such vehicle
(i) has received a certificate of conformity under the Clean Air Act and meets or exceeds the most stringent standard available for certification under the Clean Air Act for that make and model year vehicle (other than a zero emission standard), or
(ii) has received an order certifying the vehicle as meeting the same requirements as vehicles which may be sold or leased in California and meets or exceeds the most stringent standard available for certification under the State laws of California (enacted in accordance with a waiver granted under section 209(b) of the Clean Air Act) for that make and model year vehicle (other than a zero emission standard).

For purposes of the preceding sentence, in the case of any new qualified alternative fuel motor vehicle which weighs more than 14,000 pounds gross vehicle weight rating, the most stringent standard available shall be such standard available for certification on the date of the enactment of the Energy Tax Incentives Act of 2005.

(3) Incremental cost 
For purposes of this subsection, the incremental cost of any new qualified alternative fuel motor vehicle is equal to the amount of the excess of the manufacturers suggested retail price for such vehicle over such price for a gasoline or diesel fuel motor vehicle of the same model, to the extent such amount does not exceed
(A) $5,000, if such vehicle has a gross vehicle weight rating of not more than 8,500 pounds,
(B) $10,000, if such vehicle has a gross vehicle weight rating of more than 8,500 pounds but not more than 14,000 pounds,
(C) $25,000, if such vehicle has a gross vehicle weight rating of more than 14,000 pounds but not more than 26,000 pounds, and
(D) $40,000, if such vehicle has a gross vehicle weight rating of more than 26,000 pounds.
(4) New qualified alternative fuel motor vehicle 
For purposes of this subsection
(A) In general 
The term new qualified alternative fuel motor vehicle means any motor vehicle
(i) which is only capable of operating on an alternative fuel,
(ii) the original use of which commences with the taxpayer,
(iii) which is acquired by the taxpayer for use or lease, but not for resale, and
(iv) which is made by a manufacturer.
(B) Alternative fuel 
The term alternative fuel means compressed natural gas, liquefied natural gas, liquefied petroleum gas, hydrogen, and any liquid at least 85 percent of the volume of which consists of methanol.
(5) Credit for mixed-fuel vehicles 

(A) In general 
In the case of a mixed-fuel vehicle placed in service by the taxpayer during the taxable year, the credit determined under this subsection is an amount equal to
(i) in the case of a 75/25 mixed-fuel vehicle, 70 percent of the credit which would have been allowed under this subsection if such vehicle was a qualified alternative fuel motor vehicle, and
(ii) in the case of a 90/10 mixed-fuel vehicle, 90 percent of the credit which would have been allowed under this subsection if such vehicle was a qualified alternative fuel motor vehicle.
(B) Mixed-fuel vehicle 
For purposes of this subsection, the term mixed-fuel vehicle means any motor vehicle described in subparagraph (C) or (D) of paragraph (3), which
(i) is certified by the manufacturer as being able to perform efficiently in normal operation on a combination of an alternative fuel and a petroleum-based fuel,
(ii) either
(I) has received a certificate of conformity under the Clean Air Act, or
(II) has received an order certifying the vehicle as meeting the same requirements as vehicles which may be sold or leased in California and meets or exceeds the low emission vehicle standard under section 88.10594 of title 40, Code of Federal Regulations, for that make and model year vehicle,
(iii) the original use of which commences with the taxpayer,
(iv) which is acquired by the taxpayer for use or lease, but not for resale, and
(v) which is made by a manufacturer.
(C) 75/25 mixed-fuel vehicle 
For purposes of this subsection, the term 75/25 mixed-fuel vehicle means a mixed-fuel vehicle which operates using at least 75 percent alternative fuel and not more than 25 percent petroleum-based fuel.
(D) 90/10 mixed-fuel vehicle 
For purposes of this subsection, the term 90/10 mixed-fuel vehicle means a mixed-fuel vehicle which operates using at least 90 percent alternative fuel and not more than 10 percent petroleum-based fuel.
(f) Limitation on number of new qualified hybrid and advanced lean-burn technology vehicles eligible for credit 

(1) In general 
In the case of a qualified vehicle sold during the phaseout period, only the applicable percentage of the credit otherwise allowable under subsection (c) or (d) shall be allowed.
(2) Phaseout period 
For purposes of this subsection, the phaseout period is the period beginning with the second calendar quarter following the calendar quarter which includes the first date on which the number of qualified vehicles manufactured by the manufacturer of the vehicle referred to in paragraph (1) sold for use in the United States after December 31, 2005, is at least 60,000.
(3) Applicable percentage 
For purposes of paragraph (1), the applicable percentage is
(A) 50 percent for the first 2 calendar quarters of the phaseout period,
(B) 25 percent for the 3d and 4th calendar quarters of the phaseout period, and
(C) 0 percent for each calendar quarter thereafter.
(4) Controlled groups 

(A) In general 
For purposes of this subsection, all persons treated as a single employer under subsection (a) or (b) of section 52 or subsection (m) or (o) of section 414 shall be treated as a single manufacturer.
(B) Inclusion of foreign corporations 
For purposes of subparagraph (A), in applying subsections (a) and (b) of section 52 to this section, section 1563 shall be applied without regard to subsection (b)(2)(C) thereof.
(5) Qualified vehicle 
For purposes of this subsection, the term qualified vehicle means any new qualified hybrid motor vehicle (described in subsection (d)(2)(A)) and any new advanced lean burn technology motor vehicle.
(g) Application with other credits 

(1) Business credit treated as part of general business credit 
So much of the credit which would be allowed under subsection (a) for any taxable year (determined without regard to this subsection) that is attributable to property of a character subject to an allowance for depreciation shall be treated as a credit listed in section 38 (b) for such taxable year (and not allowed under subsection (a)).
(2) Personal credit 
The credit allowed under subsection (a) (after the application of paragraph (1)) for any taxable year shall not exceed the excess (if any) of
(A) the regular tax liability (as defined in section 26 (b)) reduced by the sum of the credits allowable under subpart A and sections 27 and 30, over
(B) the tentative minimum tax for the taxable year.
(h) Other definitions and special rules 
For purposes of this section
(1) Motor vehicle 
The term motor vehicle has the meaning given such term by section 30 (c)(2).
(2) City fuel economy 
The city fuel economy with respect to any vehicle shall be measured in a manner which is substantially similar to the manner city fuel economy is measured in accordance with procedures under part 600 of subchapter Q of chapter I of title 40, Code of Federal Regulations, as in effect on the date of the enactment of this section.
(3) Other terms 
The terms automobile, passenger automobile, medium duty passenger vehicle, light truck, and manufacturer have the meanings given such terms in regulations prescribed by the Administrator of the Environmental Protection Agency for purposes of the administration of title II of the Clean Air Act (42 U.S.C. 7521 et seq.).
(4) Reduction in basis 
For purposes of this subtitle, the basis of any property for which a credit is allowable under subsection (a) shall be reduced by the amount of such credit so allowed (determined without regard to subsection (g)).
(5) No double benefit 
The amount of any deduction or other credit allowable under this chapter
(A) for any incremental cost taken into account in computing the amount of the credit determined under subsection (e) shall be reduced by the amount of such credit attributable to such cost, and
(B) with respect to a vehicle described under subsection (b) or (c), shall be reduced by the amount of credit allowed under subsection (a) for such vehicle for the taxable year.
(6) Property used by tax-exempt entity 
In the case of a vehicle whose use is described in paragraph (3) or (4) of section 50 (b) and which is not subject to a lease, the person who sold such vehicle to the person or entity using such vehicle shall be treated as the taxpayer that placed such vehicle in service, but only if such person clearly discloses to such person or entity in a document the amount of any credit allowable under subsection (a) with respect to such vehicle (determined without regard to subsection (g)). For purposes of subsection (g), property to which this paragraph applies shall be treated as of a character subject to an allowance for depreciation.
(7) Property used outside United States, etc., not qualified 
No credit shall be allowable under subsection (a) with respect to any property referred to in section 50 (b)(1) or with respect to the portion of the cost of any property taken into account under section 179.
(8) Recapture 
The Secretary shall, by regulations, provide for recapturing the benefit of any credit allowable under subsection (a) with respect to any property which ceases to be property eligible for such credit (including recapture in the case of a lease period of less than the economic life of a vehicle).
(9) Election to not take credit 
No credit shall be allowed under subsection (a) for any vehicle if the taxpayer elects to not have this section apply to such vehicle.
(10) Interaction with air quality and motor vehicle safety standards 
Unless otherwise provided in this section, a motor vehicle shall not be considered eligible for a credit under this section unless such vehicle is in compliance with
(A) the applicable provisions of the Clean Air Act for the applicable make and model year of the vehicle (or applicable air quality provisions of State law in the case of a State which has adopted such provision under a waiver under section 209(b) of the Clean Air Act), and
(B) the motor vehicle safety provisions of sections 30101 through 30169 of title 49, United States Code.
(i) Regulations 

(1) In general 
Except as provided in paragraph (2), the Secretary shall promulgate such regulations as necessary to carry out the provisions of this section.
(2) Coordination in prescription of certain regulations 
The Secretary of the Treasury, in coordination with the Secretary of Transportation and the Administrator of the Environmental Protection Agency, shall prescribe such regulations as necessary to determine whether a motor vehicle meets the requirements to be eligible for a credit under this section.
(j) Termination 
This section shall not apply to any property purchased after
(1) in the case of a new qualified fuel cell motor vehicle (as described in subsection (b)), December 31, 2014,
(2) in the case of a new advanced lean burn technology motor vehicle (as described in subsection (c)) or a new qualified hybrid motor vehicle (as described in subsection (d)(2)(A)), December 31, 2010,
(3) in the case of a new qualified hybrid motor vehicle (as described in subsection (d)(2)(B)), December 31, 2009, and
(4) in the case of a new qualified alternative fuel vehicle (as described in subsection (e)), December 31, 2010.

26 USC 30C - Alternative fuel vehicle refueling property credit

(a) Credit allowed 
There shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to 30 percent of the cost of any qualified alternative fuel vehicle refueling property placed in service by the taxpayer during the taxable year.
(b) Limitation 
The credit allowed under subsection (a) with respect to all qualified alternative fuel vehicle refueling property placed in service by the taxpayer during the taxable year at a location shall not exceed
(1) $30,000 in the case of a property of a character subject to an allowance for depreciation, and
(2) $1,000 in any other case.
(c) Qualified alternative fuel vehicle refueling property 
For purposes of this section, the term qualified alternative fuel vehicle refueling property has the same meaning as the term qualified clean-fuel vehicle refueling property would have under section 179A if
(1) paragraph (1) of section 179A (d) did not apply to property installed on property which is used as the principal residence (within the meaning of section 121) of the taxpayer, and
(2) only the following were treated as clean-burning fuels for purposes of section 179A (d):
(A) Any fuel at least 85 percent of the volume of which consists of one or more of the following: ethanol, natural gas, compressed natural gas, liquified natural gas, liquefied petroleum gas, or hydrogen.
(B) Any mixture
(i) which consists of two or more of the following: biodiesel (as defined in section 40A (d)(1)), diesel fuel (as defined in section 4083 (a)(3)), or kerosene, and
(ii) at least 20 percent of the volume of which consists of biodiesel (as so defined) determined without regard to any kerosene in such mixture.
(d) Application with other credits 

(1) Business credit treated as part of general business credit 
So much of the credit which would be allowed under subsection (a) for any taxable year (determined without regard to this subsection) that is attributable to property of a character subject to an allowance for depreciation shall be treated as a credit listed in section 38 (b) for such taxable year (and not allowed under subsection (a)).
(2) Personal credit 
The credit allowed under subsection (a) (after the application of paragraph (1)) for any taxable year shall not exceed the excess (if any) of
(A) the regular tax liability (as defined in section 26 (b)) reduced by the sum of the credits allowable under subpart A and sections 27, 30, and 30B, over
(B) the tentative minimum tax for the taxable year.
(e) Special rules 
For purposes of this section
(1) Basis reduction 
The basis of any property shall be reduced by the portion of the cost of such property taken into account under subsection (a).
(2) Property used by tax-exempt entity 
In the case of any qualified alternative fuel vehicle refueling property the use of which is described in paragraph (3) or (4) of section 50 (b) and which is not subject to a lease, the person who sold such property to the person or entity using such property shall be treated as the taxpayer that placed such property in service, but only if such person clearly discloses to such person or entity in a document the amount of any credit allowable under subsection (a) with respect to such property (determined without regard to subsection (d)). For purposes of subsection (d), property to which this paragraph applies shall be treated as of a character subject to an allowance for depreciation.
(3) Property used outside United States not qualified 
No credit shall be allowable under subsection (a) with respect to any property referred to in section 50 (b)(1) or with respect to the portion of the cost of any property taken into account under section 179.
(4) Election not to take credit 
No credit shall be allowed under subsection (a) for any property if the taxpayer elects not to have this section apply to such property.
(5) Recapture rules 
Rules similar to the rules of section 179A (e)(4) shall apply.
(f) Regulations 
The Secretary shall prescribe such regulations as necessary to carry out the provisions of this section.
(g) Termination 
This section shall not apply to any property placed in service
(1) in the case of property relating to hydrogen, after December 31, 2014, and
(2) in the case of any other property, after December 31, 2009.

Subpart C - Refundable Credits

26 USC 31 - Tax withheld on wages

(a) Wage withholding for income tax purposes 

(1) In general 
The amount withheld as tax under chapter 24 shall be allowed to the recipient of the income as a credit against the tax imposed by this subtitle.
(2) Year of credit 
The amount so withheld during any calendar year shall be allowed as a credit for the taxable year beginning in such calendar year. If more than one taxable year begins in a calendar year, such amount shall be allowed as a credit for the last taxable year so beginning.
(b) Credit for special refunds of social security tax 

(1) In general 
The Secretary may prescribe regulations providing for the crediting against the tax imposed by this subtitle of the amount determined by the taxpayer or the Secretary to be allowable under section 6413 (c) as a special refund of tax imposed on wages. The amount allowed as a credit under such regulations shall, for purposes of this subtitle, be considered an amount withheld at source as tax under section 3402.
(2) Year of credit 
Any amount to which paragraph (1) applies shall be allowed as a credit for the taxable year beginning in the calendar year during which the wages were received. If more than one taxable year begins in the calendar year, such amount shall be allowed as a credit for the last taxable year so beginning.
(c) Special rule for backup withholding 
Any credit allowed by subsection (a) for any amount withheld under section 3406 shall be allowed for the taxable year of the recipient of the income in which the income is received.

26 USC 32 - Earned income

(a) Allowance of credit 

(1) In general 
In the case of an eligible individual, there shall be allowed as a credit against the tax imposed by this subtitle for the taxable year an amount equal to the credit percentage of so much of the taxpayers earned income for the taxable year as does not exceed the earned income amount.
(2) Limitation 
The amount of the credit allowable to a taxpayer under paragraph (1) for any taxable year shall not exceed the excess (if any) of
(A) the credit percentage of the earned income amount, over
(B) the phaseout percentage of so much of the adjusted gross income (or, if greater, the earned income) of the taxpayer for the taxable year as exceeds the phaseout amount.
(b) Percentages and amounts 
For purposes of subsection (a)
(1) Percentages 
The credit percentage and the phaseout percentage shall be determined as follows:
(A) In general 
In the case of taxable years beginning after 1995:
(B) Transitional percentages for 1995 
In the case of taxable years beginning in 1995:
(C) Transitional percentages for 1994 
In the case of a taxable year beginning in 1994:
(2) Amounts 

(A) In general 
Subject to subparagraph (B), the earned income amount and the phaseout amount shall be determined as follows:
(B) Joint returns 
In the case of a joint return filed by an eligible individual and such individuals spouse, the phaseout amount determined under subparagraph (A) shall be increased by
(i) $1,000 in the case of taxable years beginning in 2002, 2003, and 2004,
(ii) $2,000 in the case of taxable years beginning in 2005, 2006, and 2007, and
(iii) $3,000 in the case of taxable years beginning after 2007.
(c) Definitions and special rules 
For purposes of this section
(1) Eligible individual 

(A) In general 
The term eligible individual means
(i) any individual who has a qualifying child for the taxable year, or
(ii) any other individual who does not have a qualifying child for the taxable year, if
(I) such individuals principal place of abode is in the United States for more than one-half of such taxable year,
(II) such individual (or, if the individual is married, either the individual or the individuals spouse) has attained age 25 but not attained age 65 before the close of the taxable year, and
(III) such individual is not a dependent for whom a deduction is allowable under section 151 to another taxpayer for any taxable year beginning in the same calendar year as such taxable year.

For purposes of the preceding sentence, marital status shall be determined under section 7703.

(B) Qualifying child ineligible 
If an individual is the qualifying child of a taxpayer for any taxable year of such taxpayer beginning in a calendar year, such individual shall not be treated as an eligible individual for any taxable year of such individual beginning in such calendar year.
(C) Exception for individual claiming benefits under section 911 
The term eligible individual does not include any individual who claims the benefits of section 911 (relating to citizens or residents living abroad) for the taxable year.
(D) Limitation on eligibility of nonresident aliens 
The term eligible individual shall not include any individual who is a nonresident alien individual for any portion of the taxable year unless such individual is treated for such taxable year as a resident of the United States for purposes of this chapter by reason of an election under subsection (g) or (h) of section 6013.
(E) Identification number requirement 
No credit shall be allowed under this section to an eligible individual who does not include on the return of tax for the taxable year
(i) such individuals taxpayer identification number, and
(ii) if the individual is married (within the meaning of section 7703), the taxpayer identification number of such individuals spouse.
(F) Individuals who do not include TIN, etc., of any qualifying child 
No credit shall be allowed under this section to any eligible individual who has one or more qualifying children if no qualifying child of such individual is taken into account under subsection (b) by reason of paragraph (3)(D).
(2) Earned income 

(A) The term earned income means
(i) wages, salaries, tips, and other employee compensation, but only if such amounts are includible in gross income for the taxable year, plus
(ii) the amount of the taxpayers net earnings from self-employment for the taxable year (within the meaning of section 1402 (a)), but such net earnings shall be determined with regard to the deduction allowed to the taxpayer by section 164 (f).
(B) For purposes of subparagraph (A)
(i) the earned income of an individual shall be computed without regard to any community property laws,
(ii) no amount received as a pension or annuity shall be taken into account,
(iii) no amount to which section 871 (a) applies (relating to income of nonresident alien individuals not connected with United States business) shall be taken into account,
(iv) no amount received for services provided by an individual while the individual is an inmate at a penal institution shall be taken into account,
(v) no amount described in subparagraph (A) received for service performed in work activities as defined in paragraph (4) or (7) of section 407(d) of the Social Security Act to which the taxpayer is assigned under any State program under part A of title IV of such Act shall be taken into account, but only to the extent such amount is subsidized under such State program, and
(vi) in the case of any taxable year ending
(I) after the date of the enactment of this clause, and
(II) before January 1, 2008,

a taxpayer may elect to treat amounts excluded from gross income by reason of section 112 as earned income.

(3) Qualifying child 

(A) In general 
The term qualifying child means a qualifying child of the taxpayer (as defined in section 152 (c), determined without regard to paragraph (1)(D) thereof and section 152 (e)).
(B) Married individual 
The term qualifying child shall not include an individual who is married as of the close of the taxpayers taxable year unless the taxpayer is entitled to a deduction under section 151 for such taxable year with respect to such individual (or would be so entitled but for section 152 (e)).
(C) Place of abode 
For purposes of subparagraph (A), the requirements of section 152 (c)(1)(B) shall be met only if the principal place of abode is in the United States.
(D) Identification requirements 

(i) In general A qualifying child shall not be taken into account under subsection (b) unless the taxpayer includes the name, age, and TIN of the qualifying child on the return of tax for the taxable year.
(ii) Other methods The Secretary may prescribe other methods for providing the information described in clause (i).
(4) Treatment of military personnel stationed outside the United States 
For purposes of paragraphs (1)(A)(ii)(I) and (3)(C), the principal place of abode of a member of the Armed Forces of the United States shall be treated as in the United States during any period during which such member is stationed outside the United States while serving on extended active duty with the Armed Forces of the United States. For purposes of the preceding sentence, the term extended active duty means any period of active duty pursuant to a call or order to such duty for a period in excess of 90 days or for an indefinite period.
(d) Married individuals 
In the case of an individual who is married (within the meaning of section 7703), this section shall apply only if a joint return is filed for the taxable year under section 6013.
(e) Taxable year must be full taxable year 
Except in the case of a taxable year closed by reason of the death of the taxpayer, no credit shall be allowable under this section in the case of a taxable year covering a period of less than 12 months.
(f) Amount of credit to be determined under tables 

(1) In general 
The amount of the credit allowed by this section shall be determined under tables prescribed by the Secretary.
(2) Requirements for tables 
The tables prescribed under paragraph (1) shall reflect the provisions of subsections (a) and (b) and shall have income brackets of not greater than $50 each
(A) for earned income between $0 and the amount of earned income at which the credit is phased out under subsection (b), and
(B) for adjusted gross income between the dollar amount at which the phaseout begins under subsection (b) and the amount of adjusted gross income at which the credit is phased out under subsection (b).
(g) Coordination with advance payments of earned income credit 

(1) Recapture of excess advance payments 
If any payment is made to the individual by an employer under section 3507 during any calendar year, then the tax imposed by this chapter for the individuals last taxable year beginning in such calendar year shall be increased by the aggregate amount of such payments.
(2) Reconciliation of payments advanced and credit allowed 
Any increase in tax under paragraph (1) shall not be treated as tax imposed by this chapter for purposes of determining the amount of any credit (other than the credit allowed by subsection (a)) allowable under this part.
[(h) Repealed. Pub. L. 107–16, title III, § 303(c), June 7, 2001, 115 Stat. 55] 
(i) Denial of credit for individuals having excessive investment income 

(1) In general 
No credit shall be allowed under subsection (a) for the taxable year if the aggregate amount of disqualified income of the taxpayer for the taxable year exceeds $2,200.
(2) Disqualified income 
For purposes of paragraph (1), the term disqualified income means
(A) interest or dividends to the extent includible in gross income for the taxable year,
(B) interest received or accrued during the taxable year which is exempt from tax imposed by this chapter,
(C) the excess (if any) of
(i) gross income from rents or royalties not derived in the ordinary course of a trade or business, over
(ii) the sum of
(I) the deductions (other than interest) which are clearly and directly allocable to such gross income, plus
(II) interest deductions properly allocable to such gross income,
(D) the capital gain net income (as defined in section 1222) of the taxpayer for such taxable year, and
(E) the excess (if any) of
(i) the aggregate income from all passive activities for the taxable year (determined without regard to any amount included in earned income under subsection (c)(2) or described in a preceding subparagraph), over
(ii) the aggregate losses from all passive activities for the taxable year (as so determined).

For purposes of subparagraph (E), the term passive activity has the meaning given such term by section 469.

(j) Inflation adjustments 

(1) In general 
In the case of any taxable year beginning after 1996, each of the dollar amounts in subsections (b)(2) and (i)(1) shall be increased by an amount equal to
(A) such dollar amount, multiplied by
(B) the cost-of-living adjustment determined under section 1 (f)(3) for the calendar year in which the taxable year begins, determined
(i) in the case of amounts in subsections (b)(2)(A) and (i)(1), by substituting calendar year 1995 for calendar year 1992 in subparagraph (B) thereof, and
(ii) in the case of the $3,000 amount in subsection (b)(2)(B)(iii), by substituting calendar year 2007 for calendar year 1992 in subparagraph (B) of such section 1.
(2) Rounding 

(A) In general 
If any dollar amount in subsection (b)(2)(A) (after being increased under subparagraph (B) thereof), after being increased under paragraph (1), is not a multiple of $10, such dollar amount shall be rounded to the nearest multiple of $10.
(B) Disqualified income threshold amount 
If the dollar amount in subsection (i)(1), after being increased under paragraph (1), is not a multiple of $50, such amount shall be rounded to the next lowest multiple of $50.
(k) Restrictions on taxpayers who improperly claimed credit in prior year 

(1) Taxpayers making prior fraudulent or reckless claims 

(A) In general 
No credit shall be allowed under this section for any taxable year in the disallowance period.
(B) Disallowance period 
For purposes of paragraph (1), the disallowance period is
(i) the period of 10 taxable years after the most recent taxable year for which there was a final determination that the taxpayers claim of credit under this section was due to fraud, and
(ii) the period of 2 taxable years after the most recent taxable year for which there was a final determination that the taxpayers claim of credit under this section was due to reckless or intentional disregard of rules and regulations (but not due to fraud).
(2) Taxpayers making improper prior claims 
In the case of a taxpayer who is denied credit under this section for any taxable year as a result of the deficiency procedures under subchapter B of chapter 63, no credit shall be allowed under this section for any subsequent taxable year unless the taxpayer provides such information as the Secretary may require to demonstrate eligibility for such credit.
(l) Coordination with certain means-tested programs 
For purposes of
(1) the United States Housing Act of 1937,
(2) title V of the Housing Act of 1949,
(3) section 101 of the Housing and Urban Development Act of 1965,
(4) sections 221(d)(3), 235, and 236 of the National Housing Act, and
(5) the Food Stamp Act of 1977,

any refund made to an individual (or the spouse of an individual) by reason of this section, and any payment made to such individual (or such spouse) by an employer under section 3507, shall not be treated as income (and shall not be taken into account in determining resources for the month of its receipt and the following month).

(m) Identification numbers 
Solely for purposes of subsections (c)(1)(E) and (c)(3)(D), a taxpayer identification number means a social security number issued to an individual by the Social Security Administration (other than a social security number issued pursuant to clause (II) (or that portion of clause (III) that relates to clause (II)) of section 205(c)(2)(B)(i) of the Social Security Act).

26 USC 33 - Tax withheld at source on nonresident aliens and foreign corporations

There shall be allowed as a credit against the tax imposed by this subtitle the amount of tax withheld at source under subchapter A of chapter 3 (relating to withholding of tax on nonresident aliens and on foreign corporations).

26 USC 34 - Certain uses of gasoline and special fuels

(a) General rule 
There shall be allowed as a credit against the tax imposed by this subtitle for the taxable year an amount equal to the sum of the amounts payable to the taxpayer
(1) under section 6420 (determined without regard to section 6420 (g)),
(2) under section 6421 (determined without regard to section 6421 (i)),1 and
(3) under section 6427 (determined without regard to section 6427 (k)).
(b) Exception 
Credit shall not be allowed under subsection (a) for any amount payable under section 6421 or 6427, if a claim for such amount is timely filed and, under section 6421 (i) or 6427 (k), is payable under such section.
[1] See References in Text note below.

26 USC 35 - Health insurance costs of eligible individuals

(a) In general 
In the case of an individual, there shall be allowed as a credit against the tax imposed by subtitle A an amount equal to 65 percent of the amount paid by the taxpayer for coverage of the taxpayer and qualifying family members under qualified health insurance for eligible coverage months beginning in the taxable year.
(b) Eligible coverage month 
For purposes of this section
(1) In general 
The term eligible coverage month means any month if
(A) as of the first day of such month, the taxpayer
(i) is an eligible individual,
(ii) is covered by qualified health insurance, the premium for which is paid by the taxpayer,
(iii) does not have other specified coverage, and
(iv) is not imprisoned under Federal, State, or local authority, and
(B) such month begins more than 90 days after the date of the enactment of the Trade Act of 2002.
(2) Joint returns 
In the case of a joint return, the requirements of paragraph (1)(A) shall be treated as met with respect to any month if at least 1 spouse satisfies such requirements.
(c) Eligible individual 
For purposes of this section
(1) In general 
The term eligible individual means
(A) an eligible TAA recipient,
(B) an eligible alternative TAA recipient, and
(C) an eligible PBGC pension recipient.
(2) Eligible TAA recipient 
The term eligible TAA recipient means, with respect to any month, any individual who is receiving for any day of such month a trade readjustment allowance under chapter 2 of title II of the Trade Act of 1974 or who would be eligible to receive such allowance if section 231 of such Act were applied without regard to subsection (a)(3)(B) of such section. An individual shall continue to be treated as an eligible TAA recipient during the first month that such individual would otherwise cease to be an eligible TAA recipient by reason of the preceding sentence.
(3) Eligible alternative TAA recipient 
The term eligible alternative TAA recipient means, with respect to any month, any individual who
(A) is a worker described in section 246(a)(3)(B) of the Trade Act of 1974 who is participating in the program established under section 246(a)(1) of such Act, and
(B) is receiving a benefit for such month under section 246(a)(2) of such Act.

An individual shall continue to be treated as an eligible alternative TAA recipient during the first month that such individual would otherwise cease to be an eligible alternative TAA recipient by reason of the preceding sentence.

(4) Eligible PBGC pension recipient 
The term eligible PBGC pension recipient means, with respect to any month, any individual who
(A) has attained age 55 as of the first day of such month, and
(B) is receiving a benefit for such month any portion of which is paid by the Pension Benefit Guaranty Corporation under title IV of the Employee Retirement Income Security Act of 1974.
(d) Qualifying family member 
For purposes of this section
(1) In general 
The term qualifying family member means
(A) the taxpayers spouse, and
(B) any dependent of the taxpayer with respect to whom the taxpayer is entitled to a deduction under section 151 (c).

Such term does not include any individual who has other specified coverage.

(2) Special dependency test in case of divorced parents, etc. 
If section 152 (e) applies to any child with respect to any calendar year, in the case of any taxable year beginning in such calendar year, such child shall be treated as described in paragraph (1)(B) with respect to the custodial parent (as defined in section 152 (e)(4)(A)) and not with respect to the noncustodial parent.
(e) Qualified health insurance 
For purposes of this section
(1) In general 
The term qualified health insurance means any of the following:
(A) Coverage under a COBRA continuation provision (as defined in section 9832 (d)(1)).
(B) State-based continuation coverage provided by the State under a State law that requires such coverage.
(C) Coverage offered through a qualified State high risk pool (as defined in section 2744(c)(2) of the Public Health Service Act).
(D) Coverage under a health insurance program offered for State employees.
(E) Coverage under a State-based health insurance program that is comparable to the health insurance program offered for State employees.
(F) Coverage through an arrangement entered into by a State and
(i) a group health plan (including such a plan which is a multiemployer plan as defined in section 3(37) of the Employee Retirement Income Security Act of 1974),
(ii) an issuer of health insurance coverage,
(iii) an administrator, or
(iv) an employer.
(G) Coverage offered through a State arrangement with a private sector health care coverage purchasing pool.
(H) Coverage under a State-operated health plan that does not receive any Federal financial participation.
(I) Coverage under a group health plan that is available through the employment of the eligible individuals spouse.
(J) In the case of any eligible individual and such individuals qualifying family members, coverage under individual health insurance if the eligible individual was covered under individual health insurance during the entire 30-day period that ends on the date that such individual became separated from the employment which qualified such individual for
(i) in the case of an eligible TAA recipient, the allowance described in subsection (c)(2),
(ii) in the case of an eligible alternative TAA recipient, the benefit described in subsection (c)(3)(B), or
(iii) in the case of any eligible PBGC pension recipient, the benefit described in subsection (c)(4)(B).

For purposes of this subparagraph, the term individual health insurance means any insurance which constitutes medical care offered to individuals other than in connection with a group health plan and does not include Federal- or State-based health insurance coverage.

(2) Requirements for state-based coverage 

(A) In general 
The term qualified health insurance does not include any coverage described in subparagraphs (B) through (H) of paragraph (1) unless the State involved has elected to have such coverage treated as qualified health insurance under this section and such coverage meets the following requirements:
(i) Guaranteed issue Each qualifying individual is guaranteed enrollment if the individual pays the premium for enrollment or provides a qualified health insurance costs credit eligibility certificate described in section 7527 and pays the remainder of such premium.
(ii) No imposition of preexisting condition exclusion No pre-existing condition limitations are imposed with respect to any qualifying individual.
(iii) Nondiscriminatory premium The total premium (as determined without regard to any subsidies) with respect to a qualifying individual may not be greater than the total premium (as so determined) for a similarly situated individual who is not a qualifying individual.
(iv) Same benefits Benefits under the coverage are the same as (or substantially similar to) the benefits provided to similarly situated individuals who are not qualifying individuals.
(B) Qualifying individual 
For purposes of this paragraph, the term qualifying individual means
(i) an eligible individual for whom, as of the date on which the individual seeks to enroll in the coverage described in subparagraphs (B) through (H) of paragraph (1), the aggregate of the periods of creditable coverage (as defined in section 9801 (c)) is 3 months or longer and who, with respect to any month, meets the requirements of clauses (iii) and (iv) of subsection (b)(1)(A); and
(ii) the qualifying family members of such eligible individual.
(3) Exception 
The term qualified health insurance shall not include
(A) a flexible spending or similar arrangement, and
(B) any insurance if substantially all of its coverage is of excepted benefits described in section 9832 (c).
(f) Other specified coverage 
For purposes of this section, an individual has other specified coverage for any month if, as of the first day of such month
(1) Subsidized coverage 

(A) In general 
Such individual is covered under any insurance which constitutes medical care (except insurance substantially all of the coverage of which is of excepted benefits described in section 9832 (c)) under any health plan maintained by any employer (or former employer) of the taxpayer or the taxpayers spouse and at least 50 percent of the cost of such coverage (determined under section 4980B) is paid or incurred by the employer.
(B) Eligible alternative TAA recipients 
In the case of an eligible alternative TAA recipient, such individual is either
(i) eligible for coverage under any qualified health insurance (other than insurance described in subparagraph (A), (B), or (F) of subsection (e)(1)) under which at least 50 percent of the cost of coverage (determined under section 4980B (f)(4)) is paid or incurred by an employer (or former employer) of the taxpayer or the taxpayers spouse, or
(ii) covered under any such qualified health insurance under which any portion of the cost of coverage (as so determined) is paid or incurred by an employer (or former employer) of the taxpayer or the taxpayers spouse.
(C) Treatment of cafeteria plans 
For purposes of subparagraphs (A) and (B), the cost of coverage shall be treated as paid or incurred by an employer to the extent the coverage is in lieu of a right to receive cash or other qualified benefits under a cafeteria plan (as defined in section 125 (d)).
(2) Coverage under Medicare, Medicaid, or SCHIP 
Such individual
(A) is entitled to benefits under part A of title XVIII of the Social Security Act or is enrolled under part B of such title, or
(B) is enrolled in the program under title XIX or XXI of such Act (other than under section 1928 of such Act).
(3) Certain other coverage 
Such individual
(A) is enrolled in a health benefits plan under chapter 89 of title 5, United States Code, or
(B) is entitled to receive benefits under chapter 55 of title 10, United States Code.
(g) Special rules 

(1) Coordination with advance payments of credit 
With respect to any taxable year, the amount which would (but for this subsection) be allowed as a credit to the taxpayer under subsection (a) shall be reduced (but not below zero) by the aggregate amount paid on behalf of such taxpayer under section 7527 for months beginning in such taxable year.
(2) Coordination with other deductions 
Amounts taken into account under subsection (a) shall not be taken into account in determining any deduction allowed under section 162 (l) or 213.
(3) Medical and health savings accounts 
Amounts distributed from an Archer MSA (as defined in section 220 (d)) or from a health savings account (as defined in section 223 (d)) shall not be taken into account under subsection (a).
(4) Denial of credit to dependents 
No credit shall be allowed under this section to any individual with respect to whom a deduction under section 151 is allowable to another taxpayer for a taxable year beginning in the calendar year in which such individuals taxable year begins.
(5) Both spouses eligible individuals 
The spouse of the taxpayer shall not be treated as a qualifying family member for purposes of subsection (a), if
(A) the taxpayer is married at the close of the taxable year,
(B) the taxpayer and the taxpayers spouse are both eligible individuals during the taxable year, and
(C) the taxpayer files a separate return for the taxable year.
(6) Marital status; certain married individuals living apart 
Rules similar to the rules of paragraphs (3) and (4) of section 21 (e) shall apply for purposes of this section.
(7) Insurance which covers other individuals 
For purposes of this section, rules similar to the rules of section 213 (d)(6) shall apply with respect to any contract for qualified health insurance under which amounts are payable for coverage of an individual other than the taxpayer and qualifying family members.
(8) Treatment of payments 
For purposes of this section
(A) Payments by Secretary 
Payments made by the Secretary on behalf of any individual under section 7527 (relating to advance payment of credit for health insurance costs of eligible individuals) shall be treated as having been made by the taxpayer on the first day of the month for which such payment was made.
(B) Payments by taxpayer 
Payments made by the taxpayer for eligible coverage months shall be treated as having been made by the taxpayer on the first day of the month for which such payment was made.
(9) Regulations 
The Secretary may prescribe such regulations and other guidance as may be necessary or appropriate to carry out this section, section 6050T, and section 7527.

26 USC 36 - Overpayments of tax

For credit against the tax imposed by this subtitle for overpayments of tax, see section 6401.

Subpart D - Business Related Credits

26 USC 38 - General business credit

(a) Allowance of credit 
There shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the sum of
(1) the business credit carryforwards carried to such taxable year,
(2) the amount of the current year business credit, plus
(3) the business credit carrybacks carried to such taxable year.
(b) Current year business credit 
For purposes of this subpart, the amount of the current year business credit is the sum of the following credits determined for the taxable year:
(1) the investment credit determined under section 46,
(2) the work opportunity credit determined under section 51 (a),
(3) the alcohol fuels credit determined under section 40 (a),
(4) the research credit determined under section 41 (a),
(5) the low-income housing credit determined under section 42 (a),
(6) the enhanced oil recovery credit under section 43 (a),
(7) in the case of an eligible small business (as defined in section 44 (b)), the disabled access credit determined under section 44 (a),
(8) the renewable electricity production credit under section 45 (a),
(9) the empowerment zone employment credit determined under section 1396 (a),
(10) the Indian employment credit as determined under section 45A (a),
(11) the employer social security credit determined under section 45B (a),
(12) the orphan drug credit determined under section 45C (a),
(13) the new markets tax credit determined under section 45D (a),
(14) in the case of an eligible employer (as defined in section 45E (c)), the small employer pension plan startup cost credit determined under section 45E (a),
(15) the employer-provided child care credit determined under section 45F (a),
(16) the railroad track maintenance credit determined under section 45G (a),
(17) the biodiesel fuels credit determined under section 40A (a),
(18) the low sulfur diesel fuel production credit determined under section 45H (a),
(19) the marginal oil and gas well production credit determined under section 45I (a),
(20) the distilled spirits credit determined under section 5011 (a),
(21) the advanced nuclear power facility production credit determined under section 45J (a),
(22) the nonconventional source production credit determined under section 45K (a),
(23) the new energy efficient home credit determined under section 45L (a),
(24) the energy efficient appliance credit determined under section 45M (a),
(25) the portion of the alternative motor vehicle credit to which section 30B (g)(1) applies,
(26) the portion of the alternative fuel vehicle refueling property credit to which section 30C (d)(1) applies,
(27) the Hurricane Katrina housing credit determined under section 1400P (b),
(28) the Hurricane Katrina employee retention credit determined under section 1400R (a),
(29) the Hurricane Rita employee retention credit determined under section 1400R (b),
(30) the Hurricane Wilma employee retention credit determined under section 1400R (c), plus
(31) the mine rescue team training credit determined under section 45N (a).
(c) Limitation based on amount of tax 

(1) In general 
The credit allowed under subsection (a) for any taxable year shall not exceed the excess (if any) of the taxpayers net income tax over the greater of
(A) the tentative minimum tax for the taxable year, or
(B) 25 percent of so much of the taxpayers net regular tax liability as exceeds $25,000.

For purposes of the preceding sentence, the term net income tax means the sum of the regular tax liability and the tax imposed by section 55, reduced by the credits allowable under subparts A and B of this part, and the term net regular tax liability means the regular tax liability reduced by the sum of the credits allowable under subparts A and B of this part.

(2) Empowerment zone employment credit may offset 25 percent of minimum tax 

(A) In general 
In the case of the empowerment zone employment credit credit
(i) this section and section 39 shall be applied separately with respect to such credit, and
(ii) for purposes of applying paragraph (1) to such credit
(I) 75 percent of the tentative minimum tax shall be substituted for the tentative minimum tax under subparagraph (A) thereof, and
(II) the limitation under paragraph (1) (as modified by subclause (I)) shall be reduced by the credit allowed under subsection (a) for the taxable year (other than the empowerment zone employment credit, the New York Liberty Zone business employee credit, and the specified credits).
(B) Empowerment zone employment credit 
For purposes of this paragraph, the term empowerment zone employment credit means the portion of the credit under subsection (a) which is attributable to the credit determined under section 1396 (relating to empowerment zone employment credit).
(3) Special rules for New York Liberty Zone business employee credit 

(A) In general 
In the case of the New York Liberty Zone business employee credit
(i) this section and section 39 shall be applied separately with respect to such credit, and
(ii) in applying paragraph (1) to such credit
(I) the tentative minimum tax shall be treated as being zero, and
(II) the limitation under paragraph (1) (as modified by subclause (I)) shall be reduced by the credit allowed under subsection (a) for the taxable year (other than the New York Liberty Zone business employee credit and the specified credits).
(B) New York Liberty Zone business employee credit 
For purposes of this subsection, the term New York Liberty Zone business employee credit means the portion of work opportunity credit under section 51 determined under section 1400L (a).
(4) Special rules for specified credits 

(A) In general 
In the case of specified credits
(i) this section and section 39 shall be applied separately with respect to such credits, and
(ii) in applying paragraph (1) to such credits
(I) the tentative minimum tax shall be treated as being zero, and
(II) the limitation under paragraph (1) (as modified by subclause (I)) shall be reduced by the credit allowed under subsection (a) for the taxable year (other than the specified credits).
(B) Specified credits 
For purposes of this subsection, the term specified credits means
(i) for taxable years beginning after December 31, 2004, the credit determined under section 40,
(ii) the credit determined under section 45 to the extent that such credit is attributable to electricity or refined coal produced
(I) at a facility which is originally placed in service after the date of the enactment of this paragraph, and
(II) during the 4-year period beginning on the date that such facility was originally placed in service,
(iii) the credit determined under section 45B, and
(iv) the credit determined under section 51.
(5) Special rules 

(A) Married individuals 
In the case of a husband or wife who files a separate return, the amount specified under subparagraph (B) of paragraph (1) shall be $12,500 in lieu of $25,000. This subparagraph shall not apply if the spouse of the taxpayer has no business credit carryforward or carryback to, and has no current year business credit for, the taxable year of such spouse which ends within or with the taxpayers taxable year.
(B) Controlled groups 
In the case of a controlled group, the $25,000 amount specified under subparagraph (B) of paragraph (1) shall be reduced for each component member of such group by apportioning $25,000 among the component members of such group in such manner as the Secretary shall by regulations prescribe. For purposes of the preceding sentence, the term controlled group has the meaning given to such term by section 1563 (a).
(C) Limitations with respect to certain persons 
In the case of a person described in subparagraph (A) or (B) of section 46 (e)(1) (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990), the $25,000 amount specified under subparagraph (B) of paragraph (1) shall equal such persons ratable share (as determined under section 46 (e)(2) (as so in effect) of such amount.
(D) Estates and trusts 
In the case of an estate or trust, the $25,000 amount specified under subparagraph (B) of paragraph (1) shall be reduced to an amount which bears the same ratio to $25,000 as the portion of the income of the estate or trust which is not allocated to beneficiaries bears to the total income of the estate or trust.
(d) Ordering rules 
For purposes of any provision of this title where it is necessary to ascertain the extent to which the credits determined under any section referred to in subsection (b) are used in a taxable year or as a carryback or carryforward
(1) In general 
The order in which such credits are used shall be determined on the basis of the order in which they are listed in subsection (b) as of the close of the taxable year in which the credit is used.
(2) Components of investment credit 
The order in which the credits listed in section 46 are used shall be determined on the basis of the order in which such credits are listed in section 46 as of the close of the taxable year in which the credit is used.
(3) Credits no longer listed 
For purposes of this subsection
(A) the credit allowable by section 40, as in effect on the day before the date of the enactment of the Tax Reform Act of 1984, (relating to expenses of work incentive programs) and the credit allowable by section 41 (a), as in effect on the day before the date of the enactment of the Tax Reform Act of 1986, (relating to employee stock ownership credit) shall be treated as referred to in that order after the last paragraph of subsection (b), and
(B) the credit determined under section 46
(i) to the extent attributable to the employee plan percentage (as defined in section 46 (a)(2)(E) as in effect on the day before the date of the enactment of the Tax Reform Act of 1984) shall be treated as a credit listed after paragraph (1) of section 46, and
(ii) to the extent attributable to the regular percentage (as defined in section 46 (b)(1) as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990) shall be treated as the first credit listed in section 46.

26 USC 39 - Carryback and carryforward of unused credits

(a) In general 

(1) 1-year carryback and 20-year carryforward 
If the sum of the business credit carryforwards to the taxable year plus the amount of the current year business credit for the taxable year exceeds the amount of the limitation imposed by subsection (c) of section 38 for such taxable year (hereinafter in this section referred to as the unused credit year), such excess (to the extent attributable to the amount of the current year business credit) shall be
(A) a business credit carryback to the taxable year preceding the unused credit year, and
(B) a business credit carryforward to each of the 20 taxable years following the unused credit year,

and, subject to the limitations imposed by subsections (b) and (c), shall be taken into account under the provisions of section 38 (a) in the manner provided in section 38 (a).

(2) Amount carried to each year 

(A) Entire amount carried to first year 
The entire amount of the unused credit for an unused credit year shall be carried to the earliest of the 21 taxable years to which (by reason of paragraph (1)) such credit may be carried.
(B) Amount carried to other 20 years 
The amount of the unused credit for the unused credit year shall be carried to each of the other 20 taxable years to the extent that such unused credit may not be taken into account under section 38 (a) for a prior taxable year because of the limitations of subsections (b) and (c).
(3) 5-year carryback for marginal oil and gas well production credit 
Notwithstanding subsection (d), in the case of the marginal oil and gas well production credit
(A) this section shall be applied separately from the business credit (other than the marginal oil and gas well production credit),
(B) paragraph (1) shall be applied by substituting each of the 5 taxable years for the taxable year in subparagraph (A) thereof, and
(C) paragraph (2) shall be applied
(i) by substituting 25 taxable years for 21 taxable years in subparagraph (A) thereof, and
(ii) by substituting 24 taxable years for 20 taxable years in subparagraph (B) thereof.
(b) Limitation on carrybacks 
The amount of the unused credit which may be taken into account under section 38 (a)(3) for any preceding taxable year shall not exceed the amount by which the limitation imposed by section 38 (c) for such taxable year exceeds the sum of
(1) the amounts determined under paragraphs (1) and (2) of section 38 (a) for such taxable year, plus
(2) the amounts which (by reason of this section) are carried back to such taxable year and are attributable to taxable years preceding the unused credit year.
(c) Limitation on carryforwards 
The amount of the unused credit which may be taken into account under section 38 (a)(1) for any succeeding taxable year shall not exceed the amount by which the limitation imposed by section 38 (c) for such taxable year exceeds the sum of the amounts which, by reason of this section, are carried to such taxable year and are attributable to taxable years preceding the unused credit year.
(d) Transitional rule 
No portion of the unused business credit for any taxable year which is attributable to a credit specified in section 38 (b) or any portion thereof may be carried back to any taxable year before the first taxable year for which such specified credit or such portion is allowable (without regard to subsection (a)).

26 USC 40 - Alcohol used as fuel

(a) General rule 
For purposes of section 38, the alcohol fuels credit determined under this section for the taxable year is an amount equal to the sum of
(1) the alcohol mixture credit, plus
(2) the alcohol credit, plus
(3) in the case of an eligible small ethanol producer, the small ethanol producer credit.
(b) Definition of alcohol mixture credit, alcohol credit, and small ethanol producer credit 
For purposes of this section, and except as provided in subsection (h)
(1) Alcohol mixture credit 

(A) In general 
The alcohol mixture credit of any taxpayer for any taxable year is 60 cents for each gallon of alcohol used by the taxpayer in the production of a qualified mixture.
(B) Qualified mixture 
The term qualified mixture means a mixture of alcohol and gasoline or of alcohol and a special fuel which
(i) is sold by the taxpayer producing such mixture to any person for use as a fuel, or
(ii) is used as a fuel by the taxpayer producing such mixture.
(C) Sale or use must be in trade or business, etc. 
Alcohol used in the production of a qualified mixture shall be taken into account
(i) only if the sale or use described in subparagraph (B) is in a trade or business of the taxpayer, and
(ii) for the taxable year in which such sale or use occurs.
(D) Casual off-farm production not eligible 
No credit shall be allowed under this section with respect to any casual off-farm production of a qualified mixture.
(2) Alcohol credit 

(A) In general 
The alcohol credit of any taxpayer for any taxable year is 60 cents for each gallon of alcohol which is not in a mixture with gasoline or a special fuel (other than any denaturant) and which during the taxable year
(i) is used by the taxpayer as a fuel in a trade or business, or
(ii) is sold by the taxpayer at retail to a person and placed in the fuel tank of such persons vehicle.
(B) User credit not to apply to alcohol sold at retail 
No credit shall be allowed under subparagraph (A)(i) with respect to any alcohol which was sold in a retail sale described in subparagraph (A)(ii).
(3) Smaller credit for lower proof alcohol 
In the case of any alcohol with a proof which is at least 150 but less than 190, paragraphs (1)(A) and (2)(A) shall be applied by substituting 45 cents for 60 cents.
(4) Small ethanol producer credit 

(A) In general 
The small ethanol producer credit of any eligible small ethanol producer for any taxable year is 10 cents for each gallon of qualified ethanol fuel production of such producer.
(B) Qualified ethanol fuel production 
For purposes of this paragraph, the term qualified ethanol fuel production means any alcohol which is ethanol which is produced by an eligible small ethanol producer, and which during the taxable year
(i) is sold by such producer to another person
(I) for use by such other person in the production of a qualified mixture in such other persons trade or business (other than casual off-farm production),
(II) for use by such other person as a fuel in a trade or business, or
(III) who sells such ethanol at retail to another person and places such ethanol in the fuel tank of such other person, or
(ii) is used or sold by such producer for any purpose described in clause (i).
(C) Limitation 
The qualified ethanol fuel production of any producer for any taxable year shall not exceed 15,000,000 gallons.
(D) Additional distillation excluded 
The qualified ethanol fuel production of any producer for any taxable year shall not include any alcohol which is purchased by the producer and with respect to which such producer increases the proof of the alcohol by additional distillation.
(5) Adding of denaturants not treated as mixture 
The adding of any denaturant to alcohol shall not be treated as the production of a mixture.
(c) Coordination with exemption from excise tax 
The amount of the credit determined under this section with respect to any alcohol shall, under regulations prescribed by the Secretary, be properly reduced to take into account any benefit provided with respect to such alcohol solely by reason of the application of section 4041 (b)(2), section 6426, or section 6427 (e).
(d) Definitions and special rules 
For purposes of this section
(1) Alcohol defined 

(A) In general 
The term alcohol includes methanol and ethanol but does not include
(i) alcohol produced from petroleum, natural gas, or coal (including peat), or
(ii) alcohol with a proof of less than 150.
(B) Determination of proof 
The determination of the proof of any alcohol shall be made without regard to any added denaturants.
(2) Special fuel defined 
The term special fuel includes any liquid fuel (other than gasoline) which is suitable for use in an internal combustion engine.
(3) Mixture or alcohol not used as a fuel, etc. 

(A) Mixtures 
If
(i) any credit was determined under this section with respect to alcohol used in the production of any qualified mixture, and
(ii) any person
(I) separates the alcohol from the mixture, or
(II) without separation, uses the mixture other than as a fuel,

then there is hereby imposed on such person a tax equal to 60 cents a gallon (45 cents in the case of alcohol with a proof less than 190) for each gallon of alcohol in such mixture.

(B) Alcohol 
If
(i) any credit was determined under this section with respect to the retail sale of any alcohol, and
(ii) any person mixes such alcohol or uses such alcohol other than as a fuel,

then there is hereby imposed on such person a tax equal to 60 cents a gallon (45 cents in the case of alcohol with a proof less than 190) for each gallon of such alcohol.

(C) Producer credit 
If
(i) any credit was determined under subsection (a)(3), and
(ii) any person does not use such fuel for a purpose described in subsection (b)(4)(B),

then there is hereby imposed on such person a tax equal to 10 cents a gallon for each gallon of such alcohol.

(D) Applicable laws 
All provisions of law, including penalties, shall, insofar as applicable and not inconsistent with this section, apply in respect of any tax imposed under subparagraph (A), (B), or (C) as if such tax were imposed by section 4081 and not by this chapter.
(4) Volume of alcohol 
For purposes of determining under subsection (a) the number of gallons of alcohol with respect to which a credit is allowable under subsection (a), the volume of alcohol shall include the volume of any denaturant (including gasoline) which is added under any formulas approved by the Secretary to the extent that such denaturants do not exceed 5 percent of the volume of such alcohol (including denaturants).
(5) Pass-thru in the case of estates and trusts 
Under regulations prescribed by the Secretary, rules similar to the rules of subsection (d) of section 52 shall apply.
(e) Termination 

(1) In general 
This section shall not apply to any sale or use
(A) for any period after December 31, 2010, or
(B) for any period before January 1, 2011, during which the rates of tax under section 4081 (a)(2)(A) are 4.3 cents per gallon.
(2) No carryovers to certain years after expiration 
If this section ceases to apply for any period by reason of paragraph (1), no amount attributable to any sale or use before the first day of such period may be carried under section 39 by reason of this section (treating the amount allowed by reason of this section as the first amount allowed by this subpart) to any taxable year beginning after the 3-taxable-year period beginning with the taxable year in which such first day occurs.
(f) Election to have alcohol fuels credit not apply 

(1) In general 
A taxpayer may elect to have this section not apply for any taxable year.
(2) Time for making election 
An election under paragraph (1) for any taxable year may be made (or revoked) at any time before the expiration of the 3-year period beginning on the last date prescribed by law for filing the return for such taxable year (determined without regard to extensions).
(3) Manner of making election 
An election under paragraph (1) (or revocation thereof) shall be made in such manner as the Secretary may by regulations prescribe.
(g) Definitions and special rules for eligible small ethanol producer credit 
For purposes of this section
(1) Eligible small ethanol producer 
The term eligible small ethanol producer means a person who, at all times during the taxable year, has a productive capacity for alcohol (as defined in subsection (d)(1)(A) without regard to clauses (i) and (ii)) not in excess of 60,000,000 gallons.
(2) Aggregration 1 rule 
For purposes of the 15,000,000 gallon limitation under subsection (b)(4)(C) and the 60,000,000 gallon limitation under paragraph (1), all members of the same controlled group of corporations (within the meaning of section 267 (f)) and all persons under common control (within the meaning of section 52 (b) but determined by treating an interest of more than 50 percent as a controlling interest) shall be treated as 1 person.
(3) Partnership, S corporations, and other pass-thru entities 
In the case of a partnership, trust, S corporation, or other pass-thru entity, the limitations contained in subsection (b)(4)(C) and paragraph (1) shall be applied at the entity level and at the partner or similar level.
(4) Allocation 
For purposes of this subsection, in the case of a facility in which more than 1 person has an interest, productive capacity shall be allocated among such persons in such manner as the Secretary may prescribe.
(5) Regulations 
The Secretary may prescribe such regulations as may be necessary
(A) to prevent the credit provided for in subsection (a)(3) from directly or indirectly benefiting any person with a direct or indirect productive capacity of more than 60,000,000 gallons of alcohol during the taxable year, or
(B) to prevent any person from directly or indirectly benefiting with respect to more than 15,000,000 gallons during the taxable year.
(6) Allocation of small ethanol producer credit to patrons of cooperative 

(A) Election to allocate 

(i) In general In the case of a cooperative organization described in section 1381 (a), any portion of the credit determined under subsection (a)(3) for the taxable year may, at the election of the organization, be apportioned pro rata among patrons of the organization on the basis of the quantity or value of business done with or for such patrons for the taxable year.
(ii) Form and effect of election An election under clause (i) for any taxable year shall be made on a timely filed return for such year. Such election, once made, shall be irrevocable for such taxable year. Such election shall not take effect unless the organization designates the apportionment as such in a written notice mailed to its patrons during the payment period described in section 1382 (d).
(B) Treatment of organizations and patrons 

(i) Organizations The amount of the credit not apportioned to patrons pursuant to subparagraph (A) shall be included in the amount determined under subsection (a)(3) for the taxable year of the organization.
(ii) Patrons The amount of the credit apportioned to patrons pursuant to subparagraph (A) shall be included in the amount determined under such subsection for the first taxable year of each patron ending on or after the last day of the payment period (as defined in section 1382 (d)) for the taxable year of the organization or, if earlier, for the taxable year of each patron ending on or after the date on which the patron receives notice from the cooperative of the apportionment.
(iii) Special rules for decrease in credits for taxable year If the amount of the credit of the organization determined under such subsection for a taxable year is less than the amount of such credit shown on the return of the organization for such year, an amount equal to the excess of
(I) such reduction, over
(II) the amount not apportioned to such patrons under subparagraph (A) for the taxable year,

shall be treated as an increase in tax imposed by this chapter on the organization. Such increase shall not be treated as tax imposed by this chapter for purposes of determining the amount of any credit under this chapter or for purposes of section 55.

(h) Reduced credit for ethanol blenders 

(1) In general 
In the case of any alcohol mixture credit or alcohol credit with respect to any sale or use of alcohol which is ethanol during calendar years 2001 through 2010
(A) subsections (b)(1)(A) and (b)(2)(A) shall be applied by substituting the blender amount for 60 cents,
(B) subsection (b)(3) shall be applied by substituting the low-proof blender amount for 45 cents and the blender amount for 60 cents, and
(C) subparagraphs (A) and (B) of subsection (d)(3) shall be applied by substituting the blender amount for 60 cents and the low-proof blender amount for 45 cents.
(2) Amounts 
For purposes of paragraph (1), the blender amount and the low-proof blender amount shall be determined in accordance with the following table:
[1] So in original. Probably should be “Aggregation”.

26 USC 40A - Biodiesel and renewable diesel used as fuel

(a) General rule 
For purposes of section 38, the biodiesel fuels credit determined under this section for the taxable year is an amount equal to the sum of
(1) the biodiesel mixture credit, plus
(2) the biodiesel credit, plus
(3) in the case of an eligible small agri-biodiesel producer, the small agri-biodiesel producer credit.
(b) Definition of biodiesel mixture credit, biodiesel credit, and small agri-biodiesel producer credit 
For purposes of this section
(1) Biodiesel mixture credit 

(A) In general 
The biodiesel mixture credit of any taxpayer for any taxable year is 50 cents for each gallon of biodiesel used by the taxpayer in the production of a qualified biodiesel mixture.
(B) Qualified biodiesel mixture 
The term qualified biodiesel mixture means a mixture of biodiesel and diesel fuel (as defined in section 4083 (a)(3)), determined without regard to any use of kerosene, which
(i) is sold by the taxpayer producing such mixture to any person for use as a fuel, or
(ii) is used as a fuel by the taxpayer producing such mixture.
(C) Sale or use must be in trade or business, etc. 
Biodiesel used in the production of a qualified biodiesel mixture shall be taken into account
(i) only if the sale or use described in subparagraph (B) is in a trade or business of the taxpayer, and
(ii) for the taxable year in which such sale or use occurs.
(D) Casual off-farm production not eligible 
No credit shall be allowed under this section with respect to any casual off-farm production of a qualified biodiesel mixture.
(2) Biodiesel credit 

(A) In general 
The biodiesel credit of any taxpayer for any taxable year is 50 cents for each gallon of biodiesel which is not in a mixture with diesel fuel and which during the taxable year
(i) is used by the taxpayer as a fuel in a trade or business, or
(ii) is sold by the taxpayer at retail to a person and placed in the fuel tank of such persons vehicle.
(B) User credit not to apply to biodiesel sold at retail 
No credit shall be allowed under subparagraph (A)(i) with respect to any biodiesel which was sold in a retail sale described in subparagraph (A)(ii).
(3) Credit for agri-biodiesel 
In the case of any biodiesel which is agri-biodiesel, paragraphs (1)(A) and (2)(A) shall be applied by substituting $1.00 for 50 cents.
(4) Certification for biodiesel 
No credit shall be allowed under paragraph (1) or (2) of subsection (a) unless the taxpayer obtains a certification (in such form and manner as prescribed by the Secretary) from the producer or importer of the biodiesel which identifies the product produced and the percentage of biodiesel and agri-biodiesel in the product.
(5) Small agri-biodiesel producer credit 

(A) In general 
The small agri-biodiesel producer credit of any eligible small agri-biodiesel producer for any taxable year is 10 cents for each gallon of qualified agri-biodiesel production of such producer.
(B) Qualified agri-biodiesel production 
For purposes of this paragraph, the term qualified agri-biodiesel production means any agri-biodiesel which is produced by an eligible small agri-biodiesel producer, and which during the taxable year
(i) is sold by such producer to another person
(I) for use by such other person in the production of a qualified biodiesel mixture in such other persons trade or business (other than casual off-farm production),
(II) for use by such other person as a fuel in a trade or business, or
(III) who sells such agri-biodiesel at retail to another person and places such agri-biodiesel in the fuel tank of such other person, or
(ii) is used or sold by such producer for any purpose described in clause (i).
(C) Limitation 
The qualified agri-biodiesel production of any producer for any taxable year shall not exceed 15,000,000 gallons.
(c) Coordination with credit against excise tax 
The amount of the credit determined under this section with respect to any biodiesel shall be properly reduced to take into account any benefit provided with respect to such biodiesel solely by reason of the application of section 6426 or 6427 (e).
(d) Definitions and special rules 
For purposes of this section
(1) Biodiesel 
The term biodiesel means the monoalkyl esters of long chain fatty acids derived from plant or animal matter which meet
(A) the registration requirements for fuels and fuel additives established by the Environmental Protection Agency under section 211 of the Clean Air Act (42 U.S.C. 7545), and
(B) the requirements of the American Society of Testing and Materials D6751.
(2) Agri-biodiesel 
The term agri-biodiesel means biodiesel derived solely from virgin oils, including esters derived from virgin vegetable oils from corn, soybeans, sunflower seeds, cottonseeds, canola, crambe, rapeseeds, safflowers, flaxseeds, rice bran, and mustard seeds, and from animal fats.
(3) Mixture or biodiesel not used as a fuel, etc. 

(A) Mixtures 
If
(i) any credit was determined under this section with respect to biodiesel used in the production of any qualified biodiesel mixture, and
(ii) any person
(I) separates the biodiesel from the mixture, or
(II) without separation, uses the mixture other than as a fuel,

then there is hereby imposed on such person a tax equal to the product of the rate applicable under subsection (b)(1)(A) and the number of gallons of such biodiesel in such mixture.

(B) Biodiesel 
If
(i) any credit was determined under this section with respect to the retail sale of any biodiesel, and
(ii) any person mixes such biodiesel or uses such biodiesel other than as a fuel,

then there is hereby imposed on such person a tax equal to the product of the rate applicable under subsection (b)(2)(A) and the number of gallons of such biodiesel.

(C) Producer credit 
If
(i) any credit was determined under subsection (a)(3), and
(ii) any person does not use such fuel for a purpose described in subsection (b)(5)(B),

then there is hereby imposed on such person a tax equal to 10 cents a gallon for each gallon of such agri-biodiesel.

(D) Applicable laws 
All provisions of law, including penalties, shall, insofar as applicable and not inconsistent with this section, apply in respect of any tax imposed under subparagraph (A) or (B) as if such tax were imposed by section 4081 and not by this chapter.
(4) Pass-thru in the case of estates and trusts 
Under regulations prescribed by the Secretary, rules similar to the rules of subsection (d) of section 52 shall apply.
(e) Definitions and special rules for small agri-biodiesel producer credit 
For purposes of this section
(1) Eligible small agri-biodiesel producer 
The term eligible small agri-biodiesel producer means a person who, at all times during the taxable year, has a productive capacity for agri-biodiesel not in excess of 60,000,000 gallons.
(2) Aggregation rule 
For purposes of the 15,000,000 gallon limitation under subsection (b)(5)(C) and the 60,000,000 gallon limitation under paragraph (1), all members of the same controlled group of corporations (within the meaning of section 267 (f)) and all persons under common control (within the meaning of section 52 (b) but determined by treating an interest of more than 50 percent as a controlling interest) shall be treated as 1 person.
(3) Partnership, S corporation, and other pass-thru entities 
In the case of a partnership, trust, S corporation, or other pass-thru entity, the limitations contained in subsection (b)(5)(C) and paragraph (1) shall be applied at the entity level and at the partner or similar level.
(4) Allocation 
For purposes of this subsection, in the case of a facility in which more than 1 person has an interest, productive capacity shall be allocated among such persons in such manner as the Secretary may prescribe.
(5) Regulations 
The Secretary may prescribe such regulations as may be necessary
(A) to prevent the credit provided for in subsection (a)(3) from directly or indirectly benefiting any person with a direct or indirect productive capacity of more than 60,000,000 gallons of agri-biodiesel during the taxable year, or
(B) to prevent any person from directly or indirectly benefiting with respect to more than 15,000,000 gallons during the taxable year.
(6) Allocation of small agri-biodiesel credit to patrons of cooperative 

(A) Election to allocate 

(i) In general In the case of a cooperative organization described in section 1381 (a), any portion of the credit determined under subsection (a)(3) for the taxable year may, at the election of the organization, be apportioned pro rata among patrons of the organization on the basis of the quantity or value of business done with or for such patrons for the taxable year.
(ii) Form and effect of election An election under clause (i) for any taxable year shall be made on a timely filed return for such year. Such election, once made, shall be irrevocable for such taxable year. Such election shall not take effect unless the organization designates the apportionment as such in a written notice mailed to its patrons during the payment period described in section 1382 (d).
(B) Treatment of organizations and patrons 

(i) Organizations The amount of the credit not apportioned to patrons pursuant to subparagraph (A) shall be included in the amount determined under subsection (a)(3) for the taxable year of the organization.
(ii) Patrons The amount of the credit apportioned to patrons pursuant to subparagraph (A) shall be included in the amount determined under such subsection for the first taxable year of each patron ending on or after the last day of the payment period (as defined in section 1382 (d)) for the taxable year of the organization or, if earlier, for the taxable year of each patron ending on or after the date on which the patron receives notice from the cooperative of the apportionment.
(iii) Special rules for decrease in credits for taxable year If the amount of the credit of the organization determined under such subsection for a taxable year is less than the amount of such credit shown on the return of the organization for such year, an amount equal to the excess of
(I) such reduction, over
(II) the amount not apportioned to such patrons under subparagraph (A) for the taxable year,

shall be treated as an increase in tax imposed by this chapter on the organization. Such increase shall not be treated as tax imposed by this chapter for purposes of determining the amount of any credit under this chapter or for purposes of section 55.

(f) Renewable diesel 
For purposes of this title
(1) Treatment in the same manner as biodiesel 
Except as provided in paragraph (2), renewable diesel shall be treated in the same manner as biodiesel.
(2) Exceptions 

(A) Rate of credit 
Subsections (b)(1)(A) and (b)(2)(A) shall be applied with respect to renewable diesel by substituting $1.00 for 50 cents.
(B) Nonapplication of certain credits 
Subsections (b)(3) and (b)(5) shall not apply with respect to renewable diesel.
(3) Renewable diesel defined 
The term renewable diesel means diesel fuel derived from biomass (as defined in section 45K (c)(3)) using a thermal depolymerization process which meets
(A) the registration requirements for fuels and fuel additives established by the Environmental Protection Agency under section 211 of the Clean Air Act (42 U.S.C. 7545), and
(B) the requirements of the American Society of Testing and Materials D975 or D396.
(g) Termination 
This section shall not apply to any sale or use after December 31, 2008.

26 USC 41 - Credit for increasing research activities

(a) General rule 
For purposes of section 38, the research credit determined under this section for the taxable year shall be an amount equal to the sum of
(1) 20 percent of the excess (if any) of
(A) the qualified research expenses for the taxable year, over
(B) the base amount,
(2) 20 percent of the basic research payments determined under subsection (e)(1)(A), and
(3) 20 percent of the amounts paid or incurred by the taxpayer in carrying on any trade or business of the taxpayer during the taxable year (including as contributions) to an energy research consortium for energy research.
(b) Qualified research expenses 
For purposes of this section
(1) Qualified research expenses 
The term qualified research expenses means the sum of the following amounts which are paid or incurred by the taxpayer during the taxable year in carrying on any trade or business of the taxpayer
(A) in-house research expenses, and
(B) contract research expenses.
(2) In-house research expenses 

(A) In general 
The term in-house research expenses means
(i) any wages paid or incurred to an employee for qualified services performed by such employee,
(ii) any amount paid or incurred for supplies used in the conduct of qualified research, and
(iii) under regulations prescribed by the Secretary, any amount paid or incurred to another person for the right to use computers in the conduct of qualified research.

Clause (iii) shall not apply to any amount to the extent that the taxpayer (or any person with whom the taxpayer must aggregate expenditures under subsection (f)(1)) receives or accrues any amount from any other person for the right to use substantially identical personal property.

(B) Qualified services 
The term qualified services means services consisting of
(i) engaging in qualified research, or
(ii) engaging in the direct supervision or direct support of research activities which constitute qualified research.

If substantially all of the services performed by an individual for the taxpayer during the taxable year consists of services meeting the requirements of clause (i) or (ii), the term qualified services means all of the services performed by such individual for the taxpayer during the taxable year.

(C) Supplies 
The term supplies means any tangible property other than
(i) land or improvements to land, and
(ii) property of a character subject to the allowance for depreciation.
(D) Wages 

(i) In general The term wages has the meaning given such term by section 3401 (a).
(ii) Self-employed individuals and owner-employees In the case of an employee (within the meaning of section 401 (c)(1)), the term wages includes the earned income (as defined in section 401(c)(2)) of such employee.
(iii) Exclusion for wages to which work opportunity credit applies The term wages shall not include any amount taken into account in determining the work opportunity credit under section 51 (a).
(3) Contract research expenses 

(A) In general 
The term contract research expenses means 65 percent of any amount paid or incurred by the taxpayer to any person (other than an employee of the taxpayer) for qualified research.
(B) Prepaid amounts 
If any contract research expenses paid or incurred during any taxable year are attributable to qualified research to be conducted after the close of such taxable year, such amount shall be treated as paid or incurred during the period during which the qualified research is conducted.
(C) Amounts paid to certain research consortia 

(i) In general Subparagraph (A) shall be applied by substituting 75 percent for 65 percent with respect to amounts paid or incurred by the taxpayer to a qualified research consortium for qualified research on behalf of the taxpayer and 1 or more unrelated taxpayers. For purposes of the preceding sentence, all persons treated as a single employer under subsection (a) or (b) of section 52 shall be treated as related taxpayers.
(ii) Qualified research consortium The term qualified research consortium means any organization which
(I) is described in section 501 (c)(3) or 501 (c)(6) and is exempt from tax under section 501 (a),
(II) is organized and operated primarily to conduct scientific research, and
(III) is not a private foundation.
(D) Amounts paid to eligible small businesses, universities, and Federal laboratories 

(i) In general In the case of amounts paid by the taxpayer to
(I) an eligible small business,
(II) an institution of higher education (as defined in section 3304 (f)), or
(III) an organization which is a Federal laboratory,

for qualified research which is energy research, subparagraph (A) shall be applied by substituting 100 percent for 65 percent.

(ii) Eligible small business For purposes of this subparagraph, the term eligible small business means a small business with respect to which the taxpayer does not own (within the meaning of section 318) 50 percent or more of
(I) in the case of a corporation, the outstanding stock of the corporation (either by vote or value), and
(II) in the case of a small business which is not a corporation, the capital and profits interests of the small business.
(iii) Small business For purposes of this subparagraph
(I) In general The term small business means, with respect to any calendar year, any person if the annual average number of employees employed by such person during either of the 2 preceding calendar years was 500 or fewer. For purposes of the preceding sentence, a preceding calendar year may be taken into account only if the person was in existence throughout the year.
(II) Startups, controlled groups, and predecessors Rules similar to the rules of subparagraphs (B) and (D) of section 220 (c)(4) shall apply for purposes of this clause.
(iv) Federal laboratory For purposes of this subparagraph, the term Federal laboratory has the meaning given such term by section 4(6) of the Stevenson-Wydler Technology Innovation Act of 1980 (15 U.S.C. 3703 (6)), as in effect on the date of the enactment of the Energy Tax Incentives Act of 2005.
(4) Trade or business requirement disregarded for in-house research expenses of certain startup ventures 
In the case of in-house research expenses, a taxpayer shall be treated as meeting the trade or business requirement of paragraph (1) if, at the time such in-house research expenses are paid or incurred, the principal purpose of the taxpayer in making such expenditures is to use the results of the research in the active conduct of a future trade or business
(A) of the taxpayer, or
(B) of 1 or more other persons who with the taxpayer are treated as a single taxpayer under subsection (f)(1).
(c) Base amount 

(1) In general 
The term base amount means the product of
(A) the fixed-base percentage, and
(B) the average annual gross receipts of the taxpayer for the 4 taxable years preceding the taxable year for which the credit is being determined (hereinafter in this subsection referred to as the credit year).
(2) Minimum base amount 
In no event shall the base amount be less than 50 percent of the qualified research expenses for the credit year.
(3) Fixed-base percentage 

(A) In general 
Except as otherwise provided in this paragraph, the fixed-base percentage is the percentage which the aggregate qualified research expenses of the taxpayer for taxable years beginning after December 31, 1983, and before January 1, 1989, is of the aggregate gross receipts of the taxpayer for such taxable years.
(B) Start-up companies 

(i) Taxpayers to which subparagraph applies The fixed-base percentage shall be determined under this subparagraph if
(I) the first taxable year in which a taxpayer had both gross receipts and qualified research expenses begins after December 31, 1983, or
(II) there are fewer than 3 taxable years beginning after December 31, 1983, and before January 1, 1989, in which the taxpayer had both gross receipts and qualified research expenses.
(ii) Fixed-base percentage In a case to which this subparagraph applies, the fixed-base percentage is
(I) 3 percent for each of the taxpayers 1st 5 taxable years beginning after December 31, 1993, for which the taxpayer has qualified research expenses,
(II) in the case of the taxpayers 6th such taxable year, 1/6 of the percentage which the aggregate qualified research expenses of the taxpayer for the 4th and 5th such taxable years is of the aggregate gross receipts of the taxpayer for such years,
(III) in the case of the taxpayers 7th such taxable year, 1/3 of the percentage which the aggregate qualified research expenses of the taxpayer for the 5th and 6th such taxable years is of the aggregate gross receipts of the taxpayer for such years,
(IV) in the case of the taxpayers 8th such taxable year, 1/2 of the percentage which the aggregate qualified research expenses of the taxpayer for the 5th, 6th, and 7th such taxable years is of the aggregate gross receipts of the taxpayer for such years,
(V) in the case of the taxpayers 9th such taxable year, 2/3 of the percentage which the aggregate qualified research expenses of the taxpayer for the 5th, 6th, 7th, and 8th such taxable years is of the aggregate gross receipts of the taxpayer for such years,
(VI) in the case of the taxpayers 10th such taxable year, 5/6 of the percentage which the aggregate qualified research expenses of the taxpayer for the 5th, 6th, 7th, 8th, and 9th such taxable years is of the aggregate gross receipts of the taxpayer for such years, and
(VII) for taxable years thereafter, the percentage which the aggregate qualified research expenses for any 5 taxable years selected by the taxpayer from among the 5th through the 10th such taxable years is of the aggregate gross receipts of the taxpayer for such selected years.
(iii) Treatment of de minimis amounts of gross receipts and qualified research expenses The Secretary may prescribe regulations providing that de minimis amounts of gross receipts and qualified research expenses shall be disregarded under clauses (i) and (ii).
(C) Maximum fixed-base percentage 
In no event shall the fixed-base percentage exceed 16 percent.
(D) Rounding 
The percentages determined under subparagraphs (A) and (B)(ii) shall be rounded to the nearest 1/100th of 1 percent.
(4) Election of alternative incremental credit 

(A) In general 
At the election of the taxpayer, the credit determined under subsection (a)(1) shall be equal to the sum of
(i) 3 percent of so much of the qualified research expenses for the taxable year as exceeds 1 percent of the average described in subsection (c)(1)(B) but does not exceed 1.5 percent of such average,
(ii) 4 percent of so much of such expenses as exceeds 1.5 percent of such average but does not exceed 2 percent of such average, and
(iii) 5 percent of so much of such expenses as exceeds 2 percent of such average.
(B) Election 
An election under this paragraph shall apply to the taxable year for which made and all succeeding taxable years unless revoked with the consent of the Secretary.
(5) Election of alternative simplified credit 

(A) In general 
At the election of the taxpayer, the credit determined under subsection (a)(1) shall be equal to 12 percent of so much of the qualified research expenses for the taxable year as exceeds 50 percent of the average qualified research expenses for the 3 taxable years preceding the taxable year for which the credit is being determined.
(B) Special rule in case of no qualified research expenses in any of 3 preceding taxable years 

(i) Taxpayers to which subparagraph applies The credit under this paragraph shall be determined under this subparagraph if the taxpayer has no qualified research expenses in any one of the 3 taxable years preceding the taxable year for which the credit is being determined.
(ii) Credit rate The credit determined under this subparagraph shall be equal to 6 percent of the qualified research expenses for the taxable year.
(C) Election 
An election under this paragraph shall apply to the taxable year for which made and all succeeding taxable years unless revoked with the consent of the Secretary. An election under this paragraph may not be made for any taxable year to which an election under paragraph (4) applies.
(6) Consistent treatment of expenses required 

(A) In general 
Notwithstanding whether the period for filing a claim for credit or refund has expired for any taxable year taken into account in determining the fixed-base percentage, the qualified research expenses taken into account in computing such percentage shall be determined on a basis consistent with the determination of qualified research expenses for the credit year.
(B) Prevention of distortions 
The Secretary may prescribe regulations to prevent distortions in calculating a taxpayers qualified research expenses or gross receipts caused by a change in accounting methods used by such taxpayer between the current year and a year taken into account in computing such taxpayers fixed-base percentage.
(7) Gross receipts 
For purposes of this subsection, gross receipts for any taxable year shall be reduced by returns and allowances made during the taxable year. In the case of a foreign corporation, there shall be taken into account only gross receipts which are effectively connected with the conduct of a trade or business within the United States, the Commonwealth of Puerto Rico, or any possession of the United States.
(d) Qualified research defined 
For purposes of this section
(1) In general 
The term qualified research means research
(A) with respect to which expenditures may be treated as expenses under section 174,
(B) which is undertaken for the purpose of discovering information
(i) which is technological in nature, and
(ii) the application of which is intended to be useful in the development of a new or improved business component of the taxpayer, and
(C) substantially all of the activities of which constitute elements of a process of experimentation for a purpose described in paragraph (3).

Such term does not include any activity described in paragraph (4).

(2) Tests to be applied separately to each business component 
For purposes of this subsection
(A) In general 
Paragraph (1) shall be applied separately with respect to each business component of the taxpayer.
(B) Business component defined 
The term business component means any product, process, computer software, technique, formula, or invention which is to be
(i) held for sale, lease, or license, or
(ii) used by the taxpayer in a trade or business of the taxpayer.
(C) Special rule for production processes 
Any plant process, machinery, or technique for commercial production of a business component shall be treated as a separate business component (and not as part of the business component being produced).
(3) Purposes for which research may qualify for credit 
For purposes of paragraph (1)(C)
(A) In general 
Research shall be treated as conducted for a purpose described in this paragraph if it relates to
(i) a new or improved function,
(ii) performance, or
(iii) reliability or quality.
(B) Certain purposes not qualified 
Research shall in no event be treated as conducted for a purpose described in this paragraph if it relates to style, taste, cosmetic, or seasonal design factors.
(4) Activities for which credit not allowed 
The term qualified research shall not include any of the following:
(A) Research after commercial production 
Any research conducted after the beginning of commercial production of the business component.
(B) Adaptation of existing business components 
Any research related to the adaptation of an existing business component to a particular customers requirement or need.
(C) Duplication of existing business component 
Any research related to the reproduction of an existing business component (in whole or in part) from a physical examination of the business component itself or from plans, blueprints, detailed specifications, or publicly available information with respect to such business component.
(D) Surveys, studies, etc. 
Any
(i) efficiency survey,
(ii) activity relating to management function or technique,
(iii) market research, testing, or development (including advertising or promotions),
(iv) routine data collection, or
(v) routine or ordinary testing or inspection for quality control.
(E) Computer software 
Except to the extent provided in regulations, any research with respect to computer software which is developed by (or for the benefit of) the taxpayer primarily for internal use by the taxpayer, other than for use in
(i) an activity which constitutes qualified research (determined with regard to this subparagraph), or
(ii) a production process with respect to which the requirements of paragraph (1) are met.
(F) Foreign research 
Any research conducted outside the United States, the Commonwealth of Puerto Rico, or any possession of the United States.
(G) Social sciences, etc. 
Any research in the social sciences, arts, or humanities.
(H) Funded research 
Any research to the extent funded by any grant, contract, or otherwise by another person (or governmental entity).
(e) Credit allowable with respect to certain payments to qualified organizations for basic research 
For purposes of this section
(1) In general 
In the case of any taxpayer who makes basic research payments for any taxable year
(A) the amount of basic research payments taken into account under subsection (a)(2) shall be equal to the excess of
(i) such basic research payments, over
(ii) the qualified organization base period amount, and
(B) that portion of such basic research payments which does not exceed the qualified organization base period amount shall be treated as contract research expenses for purposes of subsection (a)(1).
(2) Basic research payments defined 
For purposes of this subsection
(A) In general 
The term basic research payment means, with respect to any taxable year, any amount paid in cash during such taxable year by a corporation to any qualified organization for basic research but only if
(i) such payment is pursuant to a written agreement between such corporation and such qualified organization, and
(ii) such basic research is to be performed by such qualified organization.
(B) Exception to requirement that research be performed by the organization 
In the case of a qualified organization described in subparagraph (C) or (D) of paragraph (6), clause (ii) of subparagraph (A) shall not apply.
(3) Qualified organization base period amount 
For purposes of this subsection, the term qualified organization base period amount means an amount equal to the sum of
(A) the minimum basic research amount, plus
(B) the maintenance-of-effort amount.
(4) Minimum basic research amount 
For purposes of this subsection
(A) In general 
The term minimum basic research amount means an amount equal to the greater of
(i) 1 percent of the average of the sum of amounts paid or incurred during the base period for
(I) any in-house research expenses, and
(II) any contract research expenses, or
(ii) the amounts treated as contract research expenses during the base period by reason of this subsection (as in effect during the base period).
(B) Floor amount 
Except in the case of a taxpayer which was in existence during a taxable year (other than a short taxable year) in the base period, the minimum basic research amount for any base period shall not be less than 50 percent of the basic research payments for the taxable year for which a determination is being made under this subsection.
(5) Maintenance-of-effort amount 
For purposes of this subsection
(A) In general 
The term maintenance-of-effort amount means, with respect to any taxable year, an amount equal to the excess (if any) of
(i) an amount equal to
(I) the average of the nondesignated university contributions paid by the taxpayer during the base period, multiplied by
(II) the cost-of-living adjustment for the calendar year in which such taxable year begins, over
(ii) the amount of nondesignated university contributions paid by the taxpayer during such taxable year.
(B) Nondesignated university contributions 
For purposes of this paragraph, the term nondesignated university contribution means any amount paid by a taxpayer to any qualified organization described in paragraph (6)(A)
(i) for which a deduction was allowable under section 170, and
(ii) which was not taken into account
(I) in computing the amount of the credit under this section (as in effect during the base period) during any taxable year in the base period, or
(II) as a basic research payment for purposes of this section.
(C) Cost-of-living adjustment defined 

(i) In general The cost-of-living adjustment for any calendar year is the cost-of-living adjustment for such calendar year determined under section 1 (f)(3), by substituting calendar year 1987 for calendar year 1992 in subparagraph (B) thereof.
(ii) Special rule where base period ends in a calendar year other than 1983 or 1984 If the base period of any taxpayer does not end in 1983 or 1984, section 1 (f)(3)(B) shall, for purposes of this paragraph, be applied by substituting the calendar year in which such base period ends for 1992. Such substitution shall be in lieu of the substitution under clause (i).
(6) Qualified organization 
For purposes of this subsection, the term qualified organization means any of the following organizations:
(A) Educational institutions 
Any educational organization which
(i) is an institution of higher education (within the meaning of section 3304 (f)), and
(ii) is described in section 170 (b)(1)(A)(ii).
(B) Certain scientific research organizations 
Any organization not described in subparagraph (A) which
(i) is described in section 501 (c)(3) and is exempt from tax under section 501 (a),
(ii) is organized and operated primarily to conduct scientific research, and
(iii) is not a private foundation.
(C) Scientific tax-exempt organizations 
Any organization which
(i) is described in
(I) section 501 (c)(3) (other than a private foundation), or
(II) section 501 (c)(6),
(ii) is exempt from tax under section 501 (a),
(iii) is organized and operated primarily to promote scientific research by qualified organizations described in subparagraph (A) pursuant to written research agreements, and
(iv) currently expends
(I) substantially all of its funds, or
(II) substantially all of the basic research payments received by it,

for grants to, or contracts for basic research with, an organization described in subparagraph (A).

(D) Certain grant organizations 
Any organization not described in subparagraph (B) or (C) which
(i) is described in section 501 (c)(3) and is exempt from tax under section 501 (a) (other than a private foundation),
(ii) is established and maintained by an organization established before July 10, 1981, which meets the requirements of clause (i),
(iii) is organized and operated exclusively for the purpose of making grants to organizations described in subparagraph (A) pursuant to written research agreements for purposes of basic research, and
(iv) makes an election, revocable only with the consent of the Secretary, to be treated as a private foundation for purposes of this title (other than section 4940, relating to excise tax based on investment income).
(7) Definitions and special rules 
For purposes of this subsection
(A) Basic research 
The term basic research means any original investigation for the advancement of scientific knowledge not having a specific commercial objective, except that such term shall not include
(i) basic research conducted outside of the United States, and
(ii) basic research in the social sciences, arts, or humanities.
(B) Base period 
The term base period means the 3-taxable-year period ending with the taxable year immediately preceding the 1st taxable year of the taxpayer beginning after December 31, 1983.
(C) Exclusion from incremental credit calculation 
For purposes of determining the amount of credit allowable under subsection (a)(1) for any taxable year, the amount of the basic research payments taken into account under subsection (a)(2)
(i) shall not be treated as qualified research expenses under subsection (a)(1)(A), and
(ii) shall not be included in the computation of base amount under subsection (a)(1)(B).
(D) Trade or business qualification 
For purposes of applying subsection (b)(1) to this subsection, any basic research payments shall be treated as an amount paid in carrying on a trade or business of the taxpayer in the taxable year in which it is paid (without regard to the provisions of subsection (b)(3)(B)).
(E) Certain corporations not eligible 
The term corporation shall not include
(i) an S corporation,
(ii) a personal holding company (as defined in section 542), or
(iii) a service organization (as defined in section 414 (m)(3)).
(f) Special rules 
For purposes of this section
(1) Aggregation of expenditures 

(A) Controlled group of corporations 
In determining the amount of the credit under this section
(i) all members of the same controlled group of corporations shall be treated as a single taxpayer, and
(ii) the credit (if any) allowable by this section to each such member shall be its proportionate shares of the qualified research expenses, basic research payments, and amounts paid or incurred to energy research consortiums, giving rise to the credit.
(B) Common control 
Under regulations prescribed by the Secretary, in determining the amount of the credit under this section
(i) all trades or businesses (whether or not incorporated) which are under common control shall be treated as a single taxpayer, and
(ii) the credit (if any) allowable by this section to each such person shall be its proportionate shares of the qualified research expenses, basic research payments, and amounts paid or incurred to energy research consortiums, giving rise to the credit.

The regulations prescribed under this subparagraph shall be based on principles similar to the principles which apply in the case of subparagraph (A).

(2) Allocations 

(A) Pass-thru in the case of estates and trusts 
Under regulations prescribed by the Secretary, rules similar to the rules of subsection (d) of section 52 shall apply.
(B) Allocation in the case of partnerships 
In the case of partnerships, the credit shall be allocated among partners under regulations prescribed by the Secretary.
(3) Adjustments for certain acquisitions, etc. 
Under regulations prescribed by the Secretary
(A) Acquisitions 
If, after December 31, 1983, a taxpayer acquires the major portion of a trade or business of another person (hereinafter in this paragraph referred to as the predecessor) or the major portion of a separate unit of a trade or business of a predecessor, then, for purposes of applying this section for any taxable year ending after such acquisition, the amount of qualified research expenses paid or incurred by the taxpayer during periods before such acquisition shall be increased by so much of such expenses paid or incurred by the predecessor with respect to the acquired trade or business as is attributable to the portion of such trade or business or separate unit acquired by the taxpayer, and the gross receipts of the taxpayer for such periods shall be increased by so much of the gross receipts of such predecessor with respect to the acquired trade or business as is attributable to such portion.
(B) Dispositions 
If, after December 31, 1983
(i) a taxpayer disposes of the major portion of any trade or business or the major portion of a separate unit of a trade or business in a transaction to which subparagraph (A) applies, and
(ii) the taxpayer furnished the acquiring person such information as is necessary for the application of subparagraph (A),

then, for purposes of applying this section for any taxable year ending after such disposition, the amount of qualified research expenses paid or incurred by the taxpayer during periods before such disposition shall be decreased by so much of such expenses as is attributable to the portion of such trade or business or separate unit disposed of by the taxpayer, and the gross receipts of the taxpayer for such periods shall be decreased by so much of the gross receipts as is attributable to such portion.

(C) Certain reimbursements taken into account in determining fixed-base percentage 
If during any of the 3 taxable years following the taxable year in which a disposition to which subparagraph (B) applies occurs, the disposing taxpayer (or a person with whom the taxpayer is required to aggregate expenditures under paragraph (1)) reimburses the acquiring person (or a person required to so aggregate expenditures with such person) for research on behalf of the taxpayer, then the amount of qualified research expenses of the taxpayer for the taxable years taken into account in computing the fixed-base percentage shall be increased by the lesser of
(i) the amount of the decrease under subparagraph (B) which is allocable to taxable years so taken into account, or
(ii) the product of the number of taxable years so taken into account, multiplied by the amount of the reimbursement described in this subparagraph.
(4) Short taxable years 
In the case of any short taxable year, qualified research expenses and gross receipts shall be annualized in such circumstances and under such methods as the Secretary may prescribe by regulation.
(5) Controlled group of corporations 
The term controlled group of corporations has the same meaning given to such term by section 1563 (a), except that
(A) more than 50 percent shall be substituted for at least 80 percent each place it appears in section 1563 (a)(1), and
(B) the determination shall be made without regard to subsections (a)(4) and (e)(3)(C) of section 1563.
(6) Energy research consortium 

(A) In general 
The term energy research consortium means any organization
(i) which is
(I) described in section 501 (c)(3) and is exempt from tax under section 501 (a) and is organized and operated primarily to conduct energy research, or
(II) organized and operated primarily to conduct energy research in the public interest (within the meaning of section 501 (c)(3)),
(ii) which is not a private foundation,
(iii) to which at least 5 unrelated persons paid or incurred during the calendar year in which the taxable year of the organization begins amounts (including as contributions) to such organization for energy research, and
(iv) to which no single person paid or incurred (including as contributions) during such calendar year an amount equal to more than 50 percent of the total amounts received by such organization during such calendar year for energy research.
(B) Treatment of persons 
All persons treated as a single employer under subsection (a) or (b) of section 52 shall be treated as related persons for purposes of subparagraph (A)(iii) and as a single person for purposes of subparagraph (A)(iv).
(C) Foreign research 
For purposes of subsection (a)(3), amounts paid or incurred for any energy research conducted outside the United States, the Commonwealth of Puerto Rico, or any possession of the United States shall not be taken into account.
(D) Denial of double benefit 
Any amount taken into account under subsection (a)(3) shall not be taken into account under paragraph (1) or (2) of subsection (a).
(E) Energy research 
The term energy research does not include any research which is not qualified research.
(g) Special rule for pass-thru of credit 
In the case of an individual who
(1) owns an interest in an unincorporated trade or business,
(2) is a partner in a partnership,
(3) is a beneficiary of an estate or trust, or
(4) is a shareholder in an S corporation,

the amount determined under subsection (a) for any taxable year shall not exceed an amount (separately computed with respect to such persons interest in such trade or business or entity) equal to the amount of tax attributable to that portion of a persons taxable income which is allocable or apportionable to the persons interest in such trade or business or entity. If the amount determined under subsection (a) for any taxable year exceeds the limitation of the preceding sentence, such amount may be carried to other taxable years under the rules of section 39; except that the limitation of the preceding sentence shall be taken into account in lieu of the limitation of section 38 (c) in applying section 39.

(h) Termination 

(1) In general 
This section shall not apply to any amount paid or incurred
(A) after June 30, 1995, and before July 1, 1996, or
(B) after December 31, 2007.
(2) Computation of base amount 
In the case of any taxable year with respect to which this section applies to a number of days which is less than the total number of days in such taxable year, the base amount with respect to such taxable year shall be the amount which bears the same ratio to the base amount for such year (determined without regard to this paragraph) as the number of days in such taxable year to which this section applies bears to the total number of days in such taxable year.

26 USC 42 - Low-income housing credit

(a) In general 
For purposes of section 38, the amount of the low-income housing credit determined under this section for any taxable year in the credit period shall be an amount equal to
(1) the applicable percentage of
(2) the qualified basis of each qualified low-income building.
(b) Applicable percentage: 70 percent present value credit for certain new buildings; 30 percent present value credit for certain other buildings 
For purposes of this section
(1) Building placed in service during 1987 
In the case of any qualified low-income building placed in service by the taxpayer during 1987, the term applicable percentage means
(A) 9 percent for new buildings which are not federally subsidized for the taxable year, or
(B) 4 percent for
(i) new buildings which are federally subsidized for the taxable year, and
(ii) existing buildings.
(2) Buildings placed in service after 1987 

(A) In general 
In the case of any qualified low-income building placed in service by the taxpayer after 1987, the term applicable percentage means the appropriate percentage prescribed by the Secretary for the earlier of
(i) the month in which such building is placed in service, or
(ii) at the election of the taxpayer
(I) the month in which the taxpayer and the housing credit agency enter into an agreement with respect to such building (which is binding on such agency, the taxpayer, and all successors in interest) as to the housing credit dollar amount to be allocated to such building, or
(II) in the case of any building to which subsection (h)(4)(B) applies, the month in which the tax-exempt obligations are issued.

A month may be elected under clause (ii) only if the election is made not later than the 5th day after the close of such month. Such an election, once made, shall be irrevocable.

(B) Method of prescribing percentages 
The percentages prescribed by the Secretary for any month shall be percentages which will yield over a 10-year period amounts of credit under subsection (a) which have a present value equal to
(i) 70 percent of the qualified basis of a building described in paragraph (1)(A), and
(ii) 30 percent of the qualified basis of a building described in paragraph (1)(B).
(C) Method of discounting 
The present value under subparagraph (B) shall be determined
(i) as of the last day of the 1st year of the 10-year period referred to in subparagraph (B),
(ii) by using a discount rate equal to 72 percent of the average of the annual Federal mid-term rate and the annual Federal long-term rate applicable under section 1274 (d)(1) to the month applicable under clause (i) or (ii) of subparagraph (A) and compounded annually, and
(iii) by assuming that the credit allowable under this section for any year is received on the last day of such year.
(3) Cross references 

(A) For treatment of certain rehabilitation expenditures as separate new buildings, see subsection (e).
(B) For determination of applicable percentage for increases in qualified basis after the 1st year of the credit period, see subsection (f)(3).
(C) For authority of housing credit agency to limit applicable percentage and qualified basis which may be taken into account under this section with respect to any building, see subsection (h)(7).
(c) Qualified basis; qualified low-income building 
For purposes of this section
(1) Qualified basis 

(A) Determination 
The qualified basis of any qualified low-income building for any taxable year is an amount equal to
(i) the applicable fraction (determined as of the close of such taxable year) of
(ii) the eligible basis of such building (determined under subsection (d)(5)).
(B) Applicable fraction 
For purposes of subparagraph (A), the term applicable fraction means the smaller of the unit fraction or the floor space fraction.
(C) Unit fraction 
For purposes of subparagraph (B), the term unit fraction means the fraction
(i) the numerator of which is the number of low-income units in the building, and
(ii) the denominator of which is the number of residential rental units (whether or not occupied) in such building.
(D) Floor space fraction 
For purposes of subparagraph (B), the term floor space fraction means the fraction
(i) the numerator of which is the total floor space of the low-income units in such building, and
(ii) the denominator of which is the total floor space of the residential rental units (whether or not occupied) in such building.
(E) Qualified basis to include portion of building used to provide supportive services for homeless 
In the case of a qualified low-income building described in subsection (i)(3)(B)(iii), the qualified basis of such building for any taxable year shall be increased by the lesser of
(i) so much of the eligible basis of such building as is used throughout the year to provide supportive services designed to assist tenants in locating and retaining permanent housing, or
(ii) 20 percent of the qualified basis of such building (determined without regard to this subparagraph).
(2) Qualified low-income building 
The term qualified low-income building means any building
(A) which is part of a qualified low-income housing project at all times during the period
(i) beginning on the 1st day in the compliance period on which such building is part of such a project, and
(ii) ending on the last day of the compliance period with respect to such building, and
(B) to which the amendments made by section 201(a) of the Tax Reform Act of 1986 apply. Such term does not include any building with respect to which moderate rehabilitation assistance is provided, at any time during the compliance period, under section 8(e)(2)1 of the United States Housing Act of 1937 (other than assistance under the McKinney-Vento Homeless Assistance Act (as in effect on the date of the enactment of this sentence)).
(d) Eligible basis 
For purposes of this section
(1) New buildings 
The eligible basis of a new building is its adjusted basis as of the close of the 1st taxable year of the credit period.
(2) Existing buildings 

(A) In general 
The eligible basis of an existing building is
(i) in the case of a building which meets the requirements of subparagraph (B), its adjusted basis as of the close of the 1st taxable year of the credit period, and
(ii) zero in any other case.
(B) Requirements 
A building meets the requirements of this subparagraph if
(i) the building is acquired by purchase (as defined in section 179 (d)(2)),
(ii) there is a period of at least 10 years between the date of its acquisition by the taxpayer and the later of
(I) the date the building was last placed in service, or
(II) the date of the most recent nonqualified substantial improvement of the building,
(iii) the building was not previously placed in service by the taxpayer or by any person who was a related person with respect to the taxpayer as of the time previously placed in service, and
(iv) except as provided in subsection (f)(5), a credit is allowable under subsection (a) by reason of subsection (e) with respect to the building.
(C) Adjusted basis 
For purposes of subparagraph (A), the adjusted basis of any building shall not include so much of the basis of such building as is determined by reference to the basis of other property held at any time by the person acquiring the building.
(D) Special rules for subparagraph (B) 

(i) Nonqualified substantial improvement For purposes of subparagraph (B)(ii)
(I) In general The term nonqualified substantial improvement means any substantial improvement if section 167 (k) (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990) was elected with respect to such improvement or section 168 (as in effect on the day before the date of the enactment of the Tax Reform Act of 1986) applied to such improvement.
(II) Date of substantial improvement The date of a substantial improvement is the last day of the 24-month period referred to in subclause (III).
(III) Substantial improvement The term substantial improvement means the improvements added to capital account with respect to the building during any 24-month period, but only if the sum of the amounts added to such account during such period equals or exceeds 25 percent of the adjusted basis of the building (determined without regard to paragraphs (2) and (3) of section 1016(a)) as of the 1st day of such period.
(ii) Special rules for certain transfers For purposes of determining under subparagraph (B)(ii) when a building was last placed in service, there shall not be taken into account any placement in service
(I) in connection with the acquisition of the building in a transaction in which the basis of the building in the hands of the person acquiring it is determined in whole or in part by reference to the adjusted basis of such building in the hands of the person from whom acquired,
(II) by a person whose basis in such building is determined under section 1014 (a) (relating to property acquired from a decedent),
(III) by any governmental unit or qualified nonprofit">nonprofit organization (as defined in subsection (h)(5)) if the requirements of subparagraph (B)(ii) are met with respect to the placement in service by such unit or organization and all the income from such property is exempt from Federal income taxation,
(IV) by any person who acquired such building by foreclosure (or by instrument in lieu of foreclosure) of any purchase-money security interest held by such person if the requirements of subparagraph (B)(ii) are met with respect to the placement in service by such person and such building is resold within 12 months after the date such building is placed in service by such person after such foreclosure, or
(V) of a single-family residence by any individual who owned and used such residence for no other purpose than as his principal residence.
(iii) Related person, etc.
(I) Application of section 179 For purposes of subparagraph (B)(i), section 179 (d) shall be applied by substituting 10 percent for 50 percent in section[2] 267(b) and 707(b) and in section 179 (d)(7).
(II) Related person For purposes of subparagraph (B)(iii), a person (hereinafter in this subclause referred to as the related person) is related to any person if the related person bears a relationship to such person specified in section 267 (b) or 707 (b)(1), or the related person and such person are engaged in trades or businesses under common control (within the meaning of subsections (a) and (b) of section 52). For purposes of the preceding sentence, in applying section 267 (b) or 707 (b)(1), 10 percent shall be substituted for 50 percent.
(3) Eligible basis reduced where disproportionate standards for units 

(A) In general 
Except as provided in subparagraph (B), the eligible basis of any building shall be reduced by an amount equal to the portion of the adjusted basis of the building which is attributable to residential rental units in the building which are not low-income units and which are above the average quality standard of the low-income units in the building.
(B) Exception where taxpayer elects to exclude excess costs 

(i) In general Subparagraph (A) shall not apply with respect to a residential rental unit in a building which is not a low-income unit if
(I) the excess described in clause (ii) with respect to such unit is not greater than 15 percent of the cost described in clause (ii)(II), and
(II) the taxpayer elects to exclude from the eligible basis of such building the excess described in clause (ii) with respect to such unit.
(ii) Excess The excess described in this clause with respect to any unit is the excess of
(I) the cost of such unit, over
(II) the amount which would be the cost of such unit if the average cost per square foot of low-income units in the building were substituted for the cost per square foot of such unit.

The Secretary may by regulation provide for the determination of the excess under this clause on a basis other than square foot costs.

(4) Special rules relating to determination of adjusted basis 
For purposes of this subsection
(A) In general 
Except as provided in subparagraphs (B) and (C), the adjusted basis of any building shall be determined without regard to the adjusted basis of any property which is not residential rental property.
(B) Basis of property in common areas, etc., included 
The adjusted basis of any building shall be determined by taking into account the adjusted basis of property (of a character subject to the allowance for depreciation) used in common areas or provided as comparable amenities to all residential rental units in such building.
(C) Inclusion of basis of property used to provide services for certain nontenants 

(i) In general The adjusted basis of any building located in a qualified census tract (as defined in paragraph (5)(C)) shall be determined by taking into account the adjusted basis of property (of a character subject to the allowance for depreciation and not otherwise taken into account) used throughout the taxable year in providing any community service facility.
(ii) Limitation The increase in the adjusted basis of any building which is taken into account by reason of clause (i) shall not exceed 10 percent of the eligible basis of the qualified low-income housing project of which it is a part. For purposes of the preceding sentence, all community service facilities which are part of the same qualified low-income housing project shall be treated as one facility.
(iii) Community service facility For purposes of this subparagraph, the term community service facility means any facility designed to serve primarily individuals whose income is 60 percent or less of area median income (within the meaning of subsection (g)(1)(B)).
(D) No reduction for depreciation 
The adjusted basis of any building shall be determined without regard to paragraphs (2) and (3) of section 1016 (a).
(5) Special rules for determining eligible basis 

(A) Eligible basis reduced by Federal grants 
If, during any taxable year of the compliance period, a grant is made with respect to any building or the operation thereof and any portion of such grant is funded with Federal funds (whether or not includible in gross income), the eligible basis of such building for such taxable year and all succeeding taxable years shall be reduced by the portion of such grant which is so funded.
(B) Eligible basis not to include expenditures where section 167 (k) elected 
The eligible basis of any building shall not include any portion of its adjusted basis which is attributable to amounts with respect to which an election is made under section 167 (k) (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990).
(C) Increase in credit for buildings in high cost areas 

(i) In general In the case of any building located in a qualified census tract or difficult development area which is designated for purposes of this subparagraph
(I) in the case of a new building, the eligible basis of such building shall be 130 percent of such basis determined without regard to this subparagraph, and
(II) in the case of an existing building, the rehabilitation expenditures taken into account under subsection (e) shall be 130 percent of such expenditures determined without regard to this subparagraph.
(ii) Qualified census tract
(I) In general The term qualified census tract means any census tract which is designated by the Secretary of Housing and Urban Development and, for the most recent year for which census data are available on household income in such tract, either in which 50 percent or more of the households have an income which is less than 60 percent of the area median gross income for such year or which has a poverty rate of at least 25 percent. If the Secretary of Housing and Urban Development determines that sufficient data for any period are not available to apply this clause on the basis of census tracts, such Secretary shall apply this clause for such period on the basis of enumeration districts.
(II) Limit on MSAs designated The portion of a metropolitan statistical area which may be designated for purposes of this subparagraph shall not exceed an area having 20 percent of the population of such metropolitan statistical area.
(III) Determination of areas For purposes of this clause, each metropolitan statistical area shall be treated as a separate area and all nonmetropolitan areas in a State shall be treated as 1 area.
(iii) Difficult development areas
(I) In general The term difficult development areas means any area designated by the Secretary of Housing and Urban Development as an area which has high construction, land, and utility costs relative to area median gross income.
(II) Limit on areas designated The portions of metropolitan statistical areas which may be designated for purposes of this subparagraph shall not exceed an aggregate area having 20 percent of the population of such metropolitan statistical areas. A comparable rule shall apply to nonmetropolitan areas.
(iv) Special rules and definitions For purposes of this subparagraph
(I) population shall be determined on the basis of the most recent decennial census for which data are available,
(II) area median gross income shall be determined in accordance with subsection (g)(4),
(III) the term metropolitan statistical area has the same meaning as when used in section 143 (k)(2)(B), and
(IV) the term nonmetropolitan area means any county (or portion thereof) which is not within a metropolitan statistical area.
(6) Credit allowable for certain federally-assisted buildings acquired during 10-year period described in paragraph (2)(B)(ii) 

(A) In general 
On application by the taxpayer, the Secretary (after consultation with the appropriate Federal official) may waive paragraph (2)(B)(ii) with respect to any federally-assisted building if the Secretary determines that such waiver is necessary
(i) to avert an assignment of the mortgage secured by property in the project (of which such building is a part) to the Department of Housing and Urban Development or the Farmers Home Administration, or
(ii) to avert a claim against a Federal mortgage insurance fund (or such Department or Administration) with respect to a mortgage which is so secured.

The preceding sentence shall not apply to any building described in paragraph (7)(B).

(B) Federally-assisted building 
For purposes of subparagraph (A), the term federally-assisted building means any building which is substantially assisted, financed, or operated under
(i) section 8 of the United States Housing Act of 1937,
(ii) section 221(d)(3) or 236 of the National Housing Act, or
(iii) section 515 of the Housing Act of 1949,

as such Acts are in effect on the date of the enactment of the Tax Reform Act of 1986.

(C) Low-income buildings where mortgage may be prepaid 
A waiver may be granted under subparagraph (A) (without regard to any clause thereof) with respect to a federally-assisted building described in clause (ii) or (iii) of subparagraph (B) if
(i) the mortgage on such building is eligible for prepayment under subtitle B of the Emergency Low Income Housing Preservation Act of 1987 or under section 502(c) of the Housing Act of 1949 at any time within 1 year after the date of the application for such a waiver,
(ii) the appropriate Federal official certifies to the Secretary that it is reasonable to expect that, if the waiver is not granted, such building will cease complying with its low-income occupancy requirements, and
(iii) the eligibility to prepay such mortgage without the approval of the appropriate Federal official is waived by all persons who are so eligible and such waiver is binding on all successors of such persons.
(D) Buildings acquired from insured depository institutions in default 
A waiver may be granted under subparagraph (A) (without regard to any clause thereof) with respect to any building acquired from an insured depository institution in default (as defined in section 3 of the Federal Deposit Insurance Act) or from a receiver or conservator of such an institution.
(E) Appropriate Federal official 
For purposes of subparagraph (A), the term appropriate Federal official means
(i) the Secretary of Housing and Urban Development in the case of any building described in subparagraph (B) by reason of clause (i) or (ii) thereof, and
(ii) the Secretary of Agriculture in the case of any building described in subparagraph (B) by reason of clause (iii) thereof.
(7) Acquisition of building before end of prior compliance period 

(A) In general 
Under regulations prescribed by the Secretary, in the case of a building described in subparagraph (B) (or interest therein) which is acquired by the taxpayer
(i) paragraph (2)(B) shall not apply, but
(ii) the credit allowable by reason of subsection (a) to the taxpayer for any period after such acquisition shall be equal to the amount of credit which would have been allowable under subsection (a) for such period to the prior owner referred to in subparagraph (B) had such owner not disposed of the building.
(B) Description of building 
A building is described in this subparagraph if
(i) a credit was allowed by reason of subsection (a) to any prior owner of such building, and
(ii) the taxpayer acquired such building before the end of the compliance period for such building with respect to such prior owner (determined without regard to any disposition by such prior owner).
(e) Rehabilitation expenditures treated as separate new building 

(1) In general 
Rehabilitation expenditures paid or incurred by the taxpayer with respect to any building shall be treated for purposes of this section as a separate new building.
(2) Rehabilitation expenditures 
For purposes of paragraph (1)
(A) In general 
The term rehabilitation expenditures means amounts chargeable to capital account and incurred for property (or additions or improvements to property) of a character subject to the allowance for depreciation in connection with the rehabilitation of a building.
(B) Cost of acquisition, etc,3 not included 
Such term does not include the cost of acquiring any building (or interest therein) or any amount not permitted to be taken into account under paragraph (3) or (4) of subsection (d).
(3) Minimum expenditures to qualify 

(A) In general 
Paragraph (1) shall apply to rehabilitation expenditures with respect to any building only if
(i) the expenditures are allocable to 1 or more low-income units or substantially benefit such units, and
(ii) the amount of such expenditures during any 24-month period meets the requirements of whichever of the following subclauses requires the greater amount of such expenditures:
(I) The requirement of this subclause is met if such amount is not less than 10 percent of the adjusted basis of the building (determined as of the 1st day of such period and without regard to paragraphs (2) and (3) of section 1016 (a)).
(II) The requirement of this subclause is met if the qualified basis attributable to such amount, when divided by the number of low-income units in the building, is $3,000 or more.
(B) Exception from 10 percent rehabilitation 
In the case of a building acquired by the taxpayer from a governmental unit, at the election of the taxpayer, subparagraph (A)(ii)(I) shall not apply and the credit under this section for such rehabilitation expenditures shall be determined using the percentage applicable under subsection (b)(2)(B)(ii).
(C) Date of determination 
The determination under subparagraph (A) shall be made as of the close of the 1st taxable year in the credit period with respect to such expenditures.
(4) Special rules 
For purposes of applying this section with respect to expenditures which are treated as a separate building by reason of this subsection
(A) such expenditures shall be treated as placed in service at the close of the 24-month period referred to in paragraph (3)(A), and
(B) the applicable fraction under subsection (c)(1) shall be the applicable fraction for the building (without regard to paragraph (1)) with respect to which the expenditures were incurred.

Nothing in subsection (d)(2) shall prevent a credit from being allowed by reason of this subsection.

(5) No double counting 
Rehabilitation expenditures may, at the election of the taxpayer, be taken into account under this subsection or subsection (d)(2)(A)(i) but not under both such subsections.
(6) Regulations to apply subsection with respect to group of units in building 
The Secretary may prescribe regulations, consistent with the purposes of this subsection, treating a group of units with respect to which rehabilitation expenditures are incurred as a separate new building.
(f) Definition and special rules relating to credit period 

(1) Credit period defined 
For purposes of this section, the term credit period means, with respect to any building, the period of 10 taxable years beginning with
(A) the taxable year in which the building is placed in service, or
(B) at the election of the taxpayer, the succeeding taxable year,

but only if the building is a qualified low-income building as of the close of the 1st year of such period. The election under subparagraph (B), once made, shall be irrevocable.

(2) Special rule for 1st year of credit period 

(A) In general 
The credit allowable under subsection (a) with respect to any building for the 1st taxable year of the credit period shall be determined by substituting for the applicable fraction under subsection (c)(1) the fraction
(i) the numerator of which is the sum of the applicable fractions determined under subsection (c)(1) as of the close of each full month of such year during which such building was in service, and
(ii) the denominator of which is 12.
(B) Disallowed 1st year credit allowed in 11th year 
Any reduction by reason of subparagraph (A) in the credit allowable (without regard to subparagraph (A)) for the 1st taxable year of the credit period shall be allowable under subsection (a) for the 1st taxable year following the credit period.
(3) Determination of applicable percentage with respect to increases in qualified basis after 1st year of credit period 

(A) In general 
In the case of any building which was a qualified low-income building as of the close of the 1st year of the credit period, if
(i) as of the close of any taxable year in the compliance period (after the 1st year of the credit period) the qualified basis of such building exceeds
(ii) the qualified basis of such building as of the close of the 1st year of the credit period,

the applicable percentage which shall apply under subsection (a) for the taxable year to such excess shall be the percentage equal to 2/3 of the applicable percentage which (after the application of subsection (h)) would but for this paragraph apply to such basis.

(B) 1st year computation applies 
A rule similar to the rule of paragraph (2)(A) shall apply to any increase in qualified basis to which subparagraph (A) applies for the 1st year of such increase.
(4) Dispositions of property 
If a building (or an interest therein) is disposed of during any year for which credit is allowable under subsection (a), such credit shall be allocated between the parties on the basis of the number of days during such year the building (or interest) was held by each. In any such case, proper adjustments shall be made in the application of subsection (j).
(5) Credit period for existing buildings not to begin before rehabilitation credit allowed 

(A) In general 
The credit period for an existing building shall not begin before the 1st taxable year of the credit period for rehabilitation expenditures with respect to the building.
(B) Acquisition credit allowed for certain buildings not allowed a rehabilitation credit 

(i) In general In the case of a building described in clause (ii)
(I) subsection (d)(2)(B)(iv) shall not apply, and
(II) the credit period for such building shall not begin before the taxable year which would be the 1st taxable year of the credit period for rehabilitation expenditures with respect to the building under the modifications described in clause (ii)(II).
(ii) Building described A building is described in this clause if
(I) a waiver is granted under subsection (d)(6)(C) with respect to the acquisition of the building, and
(II) a credit would be allowed for rehabilitation expenditures with respect to such building if subsection (e)(3)(A)(ii)(I) did not apply and if subsection (e)(3)(A)(ii)(II) were applied by substituting $2,000 for $3,000.
(g) Qualified low-income housing project 
For purposes of this section
(1) In general 
The term qualified low-income housing project means any project for residential rental property if the project meets the requirements of subparagraph (A) or (B) whichever is elected by the taxpayer:
(A) 20–50 test 
The project meets the requirements of this subparagraph if 20 percent or more of the residential units in such project are both rent-restricted and occupied by individuals whose income is 50 percent or less of area median gross income.
(B) 40–60 test 
The project meets the requirements of this subparagraph if 40 percent or more of the residential units in such project are both rent-restricted and occupied by individuals whose income is 60 percent or less of area median gross income.

Any election under this paragraph, once made, shall be irrevocable. For purposes of this paragraph, any property shall not be treated as failing to be residential rental property merely because part of the building in which such property is located is used for purposes other than residential rental purposes.

(2) Rent-restricted units 

(A) In general 
For purposes of paragraph (1), a residential unit is rent-restricted if the gross rent with respect to such unit does not exceed 30 percent of the imputed income limitation applicable to such unit. For purposes of the preceding sentence, the amount of the income limitation under paragraph (1) applicable for any period shall not be less than such limitation applicable for the earliest period the building (which contains the unit) was included in the determination of whether the project is a qualified low-income housing project.
(B) Gross rent 
For purposes of subparagraph (A), gross rent
(i) does not include any payment under section 8 of the United States Housing Act of 1937 or any comparable rental assistance program (with respect to such unit or occupants thereof),
(ii) includes any utility allowance determined by the Secretary after taking into account such determinations under section 8 of the United States Housing Act of 1937,
(iii) does not include any fee for a supportive service which is paid to the owner of the unit (on the basis of the low-income status of the tenant of the unit) by any governmental program of assistance (or by an organization described in section 501 (c)(3) and exempt from tax under section 501 (a)) if such program (or organization) provides assistance for rent and the amount of assistance provided for rent is not separable from the amount of assistance provided for supportive services, and
(iv) does not include any rental payment to the owner of the unit to the extent such owner pays an equivalent amount to the Farmers Home Administration under section 515 of the Housing Act of 1949.

For purposes of clause (iii), the term supportive service means any service provided under a planned program of services designed to enable residents of a residential rental property to remain independent and avoid placement in a hospital, nursing home, or intermediate care facility for the mentally or physically handicapped. In the case of a single-room occupancy unit or a building described in subsection (i)(3)(B)(iii), such term includes any service provided to assist tenants in locating and retaining permanent housing.

(C) Imputed income limitation applicable to unit 
For purposes of this paragraph, the imputed income limitation applicable to a unit is the income limitation which would apply under paragraph (1) to individuals occupying the unit if the number of individuals occupying the unit were as follows:
(i) In the case of a unit which does not have a separate bedroom, 1 individual.
(ii) In the case of a unit which has 1 or more separate bedrooms, 1.5 individuals for each separate bedroom.

In the case of a project with respect to which a credit is allowable by reason of this section and for which financing is provided by a bond described in section 142 (a)(7), the imputed income limitation shall apply in lieu of the otherwise applicable income limitation for purposes of applying section 142 (d)(4)(B)(ii).

(D) Treatment of units occupied by individuals whose incomes rise above limit 

(i) In general Except as provided in clause (ii), notwithstanding an increase in the income of the occupants of a low-income unit above the income limitation applicable under paragraph (1), such unit shall continue to be treated as a low-income unit if the income of such occupants initially met such income limitation and such unit continues to be rent-restricted.
(ii) Next available unit must be rented to low-income tenant if income rises above 140 percent of income limit If the income of the occupants of the unit increases above 140 percent of the income limitation applicable under paragraph (1), clause (i) shall cease to apply to such unit if any residential rental unit in the building (of a size comparable to, or smaller than, such unit) is occupied by a new resident whose income exceeds such income limitation. In the case of a project described in section 142 (d)(4)(B), the preceding sentence shall be applied by substituting 170 percent for 140 percent and by substituting any low-income unit in the building is occupied by a new resident whose income exceeds 40 percent of area median gross income for any residential unit in the building (of a size comparable to, or smaller than, such unit) is occupied by a new resident whose income exceeds such income limitation.
(E) Units where Federal rental assistance is reduced as tenant’s income increases 
If the gross rent with respect to a residential unit exceeds the limitation under subparagraph (A) by reason of the fact that the income of the occupants thereof exceeds the income limitation applicable under paragraph (1), such unit shall, nevertheless, be treated as a rent-restricted unit for purposes of paragraph (1) if
(i) a Federal rental assistance payment described in subparagraph (B)(i) is made with respect to such unit or its occupants, and
(ii) the sum of such payment and the gross rent with respect to such unit does not exceed the sum of the amount of such payment which would be made and the gross rent which would be payable with respect to such unit if
(I) the income of the occupants thereof did not exceed the income limitation applicable under paragraph (1), and
(II) such units were rent-restricted within the meaning of subparagraph (A).

The preceding sentence shall apply to any unit only if the result described in clause (ii) is required by Federal statute as of the date of the enactment of this subparagraph and as of the date the Federal rental assistance payment is made.

(3) Date for meeting requirements 

(A) In general 
Except as otherwise provided in this paragraph, a building shall be treated as a qualified low-income building only if the project (of which such building is a part) meets the requirements of paragraph (1) not later than the close of the 1st year of the credit period for such building.
(B) Buildings which rely on later buildings for qualification 

(i) In general In determining whether a building (hereinafter in this subparagraph referred to as the prior building) is a qualified low-income building, the taxpayer may take into account 1 or more additional buildings placed in service during the 12-month period described in subparagraph (A) with respect to the prior building only if the taxpayer elects to apply clause (ii) with respect to each additional building taken into account.
(ii) Treatment of elected buildings In the case of a building which the taxpayer elects to take into account under clause (i), the period under subparagraph (A) for such building shall end at the close of the 12-month period applicable to the prior building.
(iii) Date prior building is treated as placed in service For purposes of determining the credit period and the compliance period for the prior building, the prior building shall be treated for purposes of this section as placed in service on the most recent date any additional building elected by the taxpayer (with respect to such prior building) was placed in service.
(C) Special rule 
A building
(i) other than the 1st building placed in service as part of a project, and
(ii) other than a building which is placed in service during the 12-month period described in subparagraph (A) with respect to a prior building which becomes a qualified low-income building,

shall in no event be treated as a qualified low-income building unless the project is a qualified low-income housing project (without regard to such building) on the date such building is placed in service.

(D) Projects with more than 1 building must be identified 
For purposes of this section, a project shall be treated as consisting of only 1 building unless, before the close of the 1st calendar year in the project period (as defined in subsection (h)(1)(F)(ii)), each building which is (or will be) part of such project is identified in such form and manner as the Secretary may provide.
(4) Certain rules made applicable 
Paragraphs (2) (other than subparagraph (A) thereof), (3), (4), (5), (6), and (7) of section 142 (d), and section 6652 (j), shall apply for purposes of determining whether any project is a qualified low-income housing project and whether any unit is a low-income unit; except that, in applying such provisions for such purposes, the term gross rent shall have the meaning given such term by paragraph (2)(B) of this subsection.
(5) Election to treat building after compliance period as not part of a project 
For purposes of this section, the taxpayer may elect to treat any building as not part of a qualified low-income housing project for any period beginning after the compliance period for such building.
(6) Special rule where de minimis equity contribution 
Property shall not be treated as failing to be residential rental property for purposes of this section merely because the occupant of a residential unit in the project pays (on a voluntary basis) to the lessor a de minimis amount to be held toward the purchase by such occupant of a residential unit in such project if
(A) all amounts so paid are refunded to the occupant on the cessation of his occupancy of a unit in the project, and
(B) the purchase of the unit is not permitted until after the close of the compliance period with respect to the building in which the unit is located.

Any amount paid to the lessor as described in the preceding sentence shall be included in gross rent under paragraph (2) for purposes of determining whether the unit is rent-restricted.

(7) Scattered site projects 
Buildings which would (but for their lack of proximity) be treated as a project for purposes of this section shall be so treated if all of the dwelling units in each of the buildings are rent-restricted (within the meaning of paragraph (2)) residential rental units.
(8) Waiver of certain de minimis errors and recertifications 
On application by the taxpayer, the Secretary may waive
(A) any recapture under subsection (j) in the case of any de minimis error in complying with paragraph (1), or
(B) any annual recertification of tenant income for purposes of this subsection, if the entire building is occupied by low-income tenants.
(h) Limitation on aggregate credit allowable with respect to projects located in a State 

(1) Credit may not exceed credit amount allocated to building 

(A) In general 
The amount of the credit determined under this section for any taxable year with respect to any building shall not exceed the housing credit dollar amount allocated to such building under this subsection.
(B) Time for making allocation 
Except in the case of an allocation which meets the requirements of subparagraph (C), (D), (E), or (F), an allocation shall be taken into account under subparagraph (A) only if it is made not later than the close of the calendar year in which the building is placed in service.
(C) Exception where binding commitment 
An allocation meets the requirements of this subparagraph if there is a binding commitment (not later than the close of the calendar year in which the building is placed in service) by the housing credit agency to allocate a specified housing credit dollar amount to such building beginning in a specified later taxable year.
(D) Exception where increase in qualified basis 

(i) In general An allocation meets the requirements of this subparagraph if such allocation is made not later than the close of the calendar year in which ends the taxable year to which it will 1st apply but only to the extent the amount of such allocation does not exceed the limitation under clause (ii).
(ii) Limitation The limitation under this clause is the amount of credit allowable under this section (without regard to this subsection) for a taxable year with respect to an increase in the qualified basis of the building equal to the excess of
(I) the qualified basis of such building as of the close of the 1st taxable year to which such allocation will apply, over
(II) the qualified basis of such building as of the close of the 1st taxable year to which the most recent prior housing credit allocation with respect to such building applied.
(iii) Housing credit dollar amount reduced by full allocation Notwithstanding clause (i), the full amount of the allocation shall be taken into account under paragraph (2).
(E) Exception where 10 percent of cost incurred 

(i) In general An allocation meets the requirements of this subparagraph if such allocation is made with respect to a qualified building which is placed in service not later than the close of the second calendar year following the calendar year in which the allocation is made.
(ii) Qualified building For purposes of clause (i), the term qualified building means any building which is part of a project if the taxpayers basis in such project (as of the later of the date which is 6 months after the date that the allocation was made or the close of the calendar year in which the allocation is made) is more than 10 percent of the taxpayers reasonably expected basis in such project (as of the close of the second calendar year referred to in clause (i)). Such term does not include any existing building unless a credit is allowable under subsection (e) for rehabilitation expenditures paid or incurred by the taxpayer with respect to such building for a taxable year ending during the second calendar year referred to in clause (i) or the prior taxable year.
(F) Allocation of credit on a project basis 

(i) In general In the case of a project which includes (or will include) more than 1 building, an allocation meets the requirements of this subparagraph if
(I) the allocation is made to the project for a calendar year during the project period,
(II) the allocation only applies to buildings placed in service during or after the calendar year for which the allocation is made, and
(III) the portion of such allocation which is allocated to any building in such project is specified not later than the close of the calendar year in which the building is placed in service.
(ii) Project period For purposes of clause (i), the term project period means the period
(I) beginning with the 1st calendar year for which an allocation may be made for the 1st building placed in service as part of such project, and
(II) ending with the calendar year the last building is placed in service as part of such project.
(2) Allocated credit amount to apply to all taxable years ending during or after credit allocation year 
Any housing credit dollar amount allocated to any building for any calendar year
(A) shall apply to such building for all taxable years in the compliance period ending during or after such calendar year, and
(B) shall reduce the aggregate housing credit dollar amount of the allocating agency only for such calendar year.
(3) Housing credit dollar amount for agencies 

(A) In general 
The aggregate housing credit dollar amount which a housing credit agency may allocate for any calendar year is the portion of the State housing credit ceiling allocated under this paragraph for such calendar year to such agency.
(B) State ceiling initially allocated to State housing credit agencies 
Except as provided in subparagraphs (D) and (E), the State housing credit ceiling for each calendar year shall be allocated to the housing credit agency of such State. If there is more than 1 housing credit agency of a State, all such agencies shall be treated as a single agency.
(C) State housing credit ceiling 
The State housing credit ceiling applicable to any State for any calendar year shall be an amount equal to the sum of
(i) the unused State housing credit ceiling (if any) of such State for the preceding calendar year,
(ii) the greater of
(I) $1.75 ($1.50 for 2001) multiplied by the State population, or
(II) $2,000,000,
(iii) the amount of State housing credit ceiling returned in the calendar year, plus
(iv) the amount (if any) allocated under subparagraph (D) to such State by the Secretary.

For purposes of clause (i), the unused State housing credit ceiling for any calendar year is the excess (if any) of the sum of the amounts described in clauses (ii) through (iv) over the aggregate housing credit dollar amount allocated for such year. For purposes of clause (iii), the amount of State housing credit ceiling returned in the calendar year equals the housing credit dollar amount previously allocated within the State to any project which fails to meet the 10 percent test under paragraph (1)(E)(ii) on a date after the close of the calendar year in which the allocation was made or which does not become a qualified low-income housing project within the period required by this section or the terms of the allocation or to any project with respect to which an allocation is cancelled by mutual consent of the housing credit agency and the allocation recipient.

(D) Unused housing credit carryovers allocated among certain States 

(i) In general The unused housing credit carryover of a State for any calendar year shall be assigned to the Secretary for allocation among qualified States for the succeeding calendar year.
(ii) Unused housing credit carryover For purposes of this subparagraph, the unused housing credit carryover of a State for any calendar year is the excess (if any) of
(I) the unused State housing credit ceiling for the year preceding such year, over
(II) the aggregate housing credit dollar amount allocated for such year.
(iii) Formula for allocation of unused housing credit carryovers among qualified States The amount allocated under this subparagraph to a qualified State for any calendar year shall be the amount determined by the Secretary to bear the same ratio to the aggregate unused housing credit carryovers of all States for the preceding calendar year as such States population for the calendar year bears to the population of all qualified States for the calendar year. For purposes of the preceding sentence, population shall be determined in accordance with section 146 (j).
(iv) Qualified State For purposes of this subparagraph, the term qualified State means, with respect to a calendar year, any State
(I) which allocated its entire State housing credit ceiling for the preceding calendar year, and
(II) for which a request is made (not later than May 1 of the calendar year) to receive an allocation under clause (iii).
(E) Special rule for States with constitutional home rule cities 
For purposes of this subsection
(i) In general The aggregate housing credit dollar amount for any constitutional home rule city for any calendar year shall be an amount which bears the same ratio to the State housing credit ceiling for such calendar year as
(I) the population of such city, bears to
(II) the population of the entire State.
(ii) Coordination with other allocations In the case of any State which contains 1 or more constitutional home rule cities, for purposes of applying this paragraph with respect to housing credit agencies in such State other than constitutional home rule cities, the State housing credit ceiling for any calendar year shall be reduced by the aggregate housing credit dollar amounts determined for such year for all constitutional home rule cities in such State.
(iii) Constitutional home rule city For purposes of this paragraph, the term constitutional home rule city has the meaning given such term by section 146 (d)(3)(C).
(F) State may provide for different allocation 
Rules similar to the rules of section 146 (e) (other than paragraph (2)(B) thereof) shall apply for purposes of this paragraph.
(G) Population 
For purposes of this paragraph, population shall be determined in accordance with section 146 (j).
(H) Cost-of-living adjustment 

(i) In general In the case of a calendar year after 2002, the $2,000,000 and $1.75 amounts in subparagraph (C) shall each be increased by an amount equal to
(I) such dollar amount, multiplied by
(II) the cost-of-living adjustment determined under section 1 (f)(3) for such calendar year by substituting calendar year 2001 for calendar year 1992 in subparagraph (B) thereof.
(ii) Rounding
(I) In the case of the $2,000,000 amount, any increase under clause (i) which is not a multiple of $5,000 shall be rounded to the next lowest multiple of $5,000.
(II) In the case of the $1.75 amount, any increase under clause (i) which is not a multiple of 5 cents shall be rounded to the next lowest multiple of 5 cents.
(4) Credit for buildings financed by tax-exempt bonds subject to volume cap not taken into account 

(A) In general 
Paragraph (1) shall not apply to the portion of any credit allowable under subsection (a) which is attributable to eligible basis financed by any obligation the interest on which is exempt from tax under section 103 if
(i) such obligation is taken into account under section 146, and
(ii) principal payments on such financing are applied within a reasonable period to redeem obligations the proceeds of which were used to provide such financing.
(B) Special rule where 50 percent or more of building is financed with tax-exempt bonds subject to volume cap 
For purposes of subparagraph (A), if 50 percent or more of the aggregate basis of any building and the land on which the building is located is financed by any obligation described in subparagraph (A), paragraph (1) shall not apply to any portion of the credit allowable under subsection (a) with respect to such building.
(5) Portion of State ceiling set-aside for certain projects involving qualified nonprofit">nonprofit organizations 

(A) In general 
Not more than 90 percent of the State housing credit ceiling for any State for any calendar year shall be allocated to projects other than qualified low-income housing projects described in subparagraph (B).
(B) Projects involving qualified nonprofit">nonprofit organizations 
For purposes of subparagraph (A), a qualified low-income housing project is described in this subparagraph if a qualified nonprofit">nonprofit organization is to own an interest in the project (directly or through a partnership) and materially participate (within the meaning of section 469 (h)) in the development and operation of the project throughout the compliance period.
(C) Qualified nonprofit">nonprofit organization 
For purposes of this paragraph, the term qualified nonprofit">nonprofit organization means any organization if
(i) such organization is described in paragraph (3) or (4) of section 501 (c) and is exempt from tax under section 501 (a),
(ii) such organization is determined by the State housing credit agency not to be affiliated with or controlled by a for-profit organization;[4] and
(iii) 1 of the exempt purposes of such organization includes the fostering of low-income housing.
(D) Treatment of certain subsidiaries 

(i) In general For purposes of this paragraph, a qualified nonprofit">nonprofit organization shall be treated as satisfying the ownership and material participation test of subparagraph (B) if any qualified corporation in which such organization holds stock satisfies such test.
(ii) Qualified corporation For purposes of clause (i), the term qualified corporation means any corporation if 100 percent of the stock of such corporation is held by 1 or more qualified nonprofit">nonprofit organizations at all times during the period such corporation is in existence.
(E) State may not override set-aside 
Nothing in subparagraph (F) of paragraph (3) shall be construed to permit a State not to comply with subparagraph (A) of this paragraph.
(6) Buildings eligible for credit only if minimum long-term commitment to low-income housing 

(A) In general 
No credit shall be allowed by reason of this section with respect to any building for the taxable year unless an extended low-income housing commitment is in effect as of the end of such taxable year.
(B) Extended low-income housing commitment 
For purposes of this paragraph, the term extended low-income housing commitment means any agreement between the taxpayer and the housing credit agency
(i) which requires that the applicable fraction (as defined in subsection (c)(1)) for the building for each taxable year in the extended use period will not be less than the applicable fraction specified in such agreement and which prohibits the actions described in subclauses (I) and (II) of subparagraph (E)(ii),
(ii) which allows individuals who meet the income limitation applicable to the building under subsection (g) (whether prospective, present, or former occupants of the building) the right to enforce in any State court the requirement and prohibitions of clause (i),
(iii) which prohibits the disposition to any person of any portion of the building to which such agreement applies unless all of the building to which such agreement applies is disposed of to such person,
(iv) which prohibits the refusal to lease to a holder of a voucher or certificate of eligibility under section 8 of the United States Housing Act of 1937 because of the status of the prospective tenant as such a holder,
(v) which is binding on all successors of the taxpayer, and
(vi) which, with respect to the property, is recorded pursuant to State law as a restrictive covenant.
(C) Allocation of credit may not exceed amount necessary to support commitment 

(i) In general The housing credit dollar amount allocated to any building may not exceed the amount necessary to support the applicable fraction specified in the extended low-income housing commitment for such building, including any increase in such fraction pursuant to the application of subsection (f)(3) if such increase is reflected in an amended low-income housing commitment.
(ii) Buildings financed by tax-exempt bonds If paragraph (4) applies to any building the amount of credit allowed in any taxable year may not exceed the amount necessary to support the applicable fraction specified in the extended low-income housing commitment for such building. Such commitment may be amended to increase such fraction.
(D) Extended use period 
For purposes of this paragraph, the term extended use period means the period
(i) beginning on the 1st day in the compliance period on which such building is part of a qualified low-income housing project, and
(ii) ending on the later of
(I) the date specified by such agency in such agreement, or
(II) the date which is 15 years after the close of the compliance period.
(E) Exceptions if foreclosure or if no buyer willing to maintain low-income status 

(i) In general The extended use period for any building shall terminate
(I) on the date the building is acquired by foreclosure (or instrument in lieu of foreclosure) unless the Secretary determines that such acquisition is part of an arrangement with the taxpayer a purpose of which is to terminate such period, or
(II) on the last day of the period specified in subparagraph (I) if the housing credit agency is unable to present during such period a qualified contract for the acquisition of the low-income portion of the building by any person who will continue to operate such portion as a qualified low-income building.

Subclause (II) shall not apply to the extent more stringent requirements are provided in the agreement or in State law.

(ii) Eviction, etc. of existing low-income tenants not permitted The termination of an extended use period under clause (i) shall not be construed to permit before the close of the 3-year period following such termination
(I) the eviction or the termination of tenancy (other than for good cause) of an existing tenant of any low-income unit, or
(II) any increase in the gross rent with respect to such unit not otherwise permitted under this section.
(F) Qualified contract 
For purposes of subparagraph (E), the term qualified contract means a bona fide contract to acquire (within a reasonable period after the contract is entered into) the nonlow-income portion of the building for fair market value and the low-income portion of the building for an amount not less than the applicable fraction (specified in the extended low-income housing commitment) of
(i) the sum of
(I) the outstanding indebtedness secured by, or with respect to, the building,
(II) the adjusted investor equity in the building, plus
(III) other capital contributions not reflected in the amounts described in subclause (I) or (II), reduced by
(ii) cash distributions from (or available for distribution from) the project.

The Secretary shall prescribe such regulations as may be necessary or appropriate to carry out this paragraph, including regulations to prevent the manipulation of the amount determined under the preceding sentence.

(G) Adjusted investor equity 

(i) In general For purposes of subparagraph (E), the term adjusted investor equity means, with respect to any calendar year, the aggregate amount of cash taxpayers invested with respect to the project increased by the amount equal to
(I) such amount, multiplied by
(II) the cost-of-living adjustment for such calendar year, determined under section 1 (f)(3) by substituting the base calendar year for calendar year 1987.

An amount shall be taken into account as an investment in the project only to the extent there was an obligation to invest such amount as of the beginning of the credit period and to the extent such amount is reflected in the adjusted basis of the project.

(ii) Cost-of-living increases in excess of 5 percent not taken into account Under regulations prescribed by the Secretary, if the CPI for any calendar year (as defined in section 1 (f)(4)) exceeds the CPI for the preceding calendar year by more than 5 percent, the CPI for the base calendar year shall be increased such that such excess shall never be taken into account under clause (i).
(iii) Base calendar year For purposes of this subparagraph, the term base calendar year means the calendar year with or within which the 1st taxable year of the credit period ends.
(H) Low-income portion 
For purposes of this paragraph, the low-income portion of a building is the portion of such building equal to the applicable fraction specified in the extended low-income housing commitment for the building.
(I) Period for finding buyer 
The period referred to in this subparagraph is the 1-year period beginning on the date (after the 14th year of the compliance period) the taxpayer submits a written request to the housing credit agency to find a person to acquire the taxpayers interest in the low-income portion of the building.
(J) Effect of noncompliance 
If, during a taxable year, there is a determination that an extended low-income housing agreement was not in effect as of the beginning of such year, such determination shall not apply to any period before such year and subparagraph (A) shall be applied without regard to such determination if the failure is corrected within 1 year from the date of the determination.
(K) Projects which consist of more than 1 building 
The application of this paragraph to projects which consist of more than 1 building shall be made under regulations prescribed by the Secretary.
(7) Special rules 

(A) Building must be located within jurisdiction of credit agency 
A housing credit agency may allocate its aggregate housing credit dollar amount only to buildings located in the jurisdiction of the governmental unit of which such agency is a part.
(B) Agency allocations in excess of limit 
If the aggregate housing credit dollar amounts allocated by a housing credit agency for any calendar year exceed the portion of the State housing credit ceiling allocated to such agency for such calendar year, the housing credit dollar amounts so allocated shall be reduced (to the extent of such excess) for buildings in the reverse of the order in which the allocations of such amounts were made.
(C) Credit reduced if allocated credit dollar amount is less than credit which would be allowable without regard to placed in service convention, etc. 

(i) In general The amount of the credit determined under this section with respect to any building shall not exceed the clause (ii) percentage of the amount of the credit which would (but for this subparagraph) be determined under this section with respect to such building.
(ii) Determination of percentage For purposes of clause (i), the clause (ii) percentage with respect to any building is the percentage which
(I) the housing credit dollar amount allocated to such building bears to
(II) the credit amount determined in accordance with clause (iii).
(iii) Determination of credit amount The credit amount determined in accordance with this clause is the amount of the credit which would (but for this subparagraph) be determined under this section with respect to the building if
(I) this section were applied without regard to paragraphs (2)(A) and (3)(B) of subsection (f), and
(II) subsection (f)(3)(A) were applied without regard to the percentage equal to 2/3 of.
(D) Housing credit agency to specify applicable percentage and maximum qualified basis 
In allocating a housing credit dollar amount to any building, the housing credit agency shall specify the applicable percentage and the maximum qualified basis which may be taken into account under this section with respect to such building. The applicable percentage and maximum qualified basis so specified shall not exceed the applicable percentage and qualified basis determined under this section without regard to this subsection.
(8) Other definitions 
For purposes of this subsection
(A) Housing credit agency 
The term housing credit agency means any agency authorized to carry out this subsection.
(B) Possessions treated as States 
The term State includes a possession of the United States.
(i) Definitions and special rules 
For purposes of this section
(1) Compliance period 
The term compliance period means, with respect to any building, the period of 15 taxable years beginning with the 1st taxable year of the credit period with respect thereto.
(2) Determination of whether building is federally subsidized 

(A) In general 
Except as otherwise provided in this paragraph, for purposes of subsection (b)(1), a new building shall be treated as federally subsidized for any taxable year if, at any time during such taxable year or any prior taxable year, there is or was outstanding any obligation the interest on which is exempt from tax under section 103, or any below market Federal loan, the proceeds of which are or were used (directly or indirectly) with respect to such building or the operation thereof.
(B) Election to reduce eligible basis by balance of loan or proceeds of obligations 
A loan or tax-exempt obligation shall not be taken into account under subparagraph (A) if the taxpayer elects to exclude from the eligible basis of the building for purposes of subsection (d)
(i) in the case of a loan, the principal amount of such loan, and
(ii) in the case of a tax-exempt obligation, the proceeds of such obligation.
(C) Special rule for subsidized construction financing 
Subparagraph (A) shall not apply to any tax-exempt obligation or below market Federal loan used to provide construction financing for any building if
(i) such obligation or loan (when issued or made) identified the building for which the proceeds of such obligation or loan would be used, and
(ii) such obligation is redeemed, and such loan is repaid, before such building is placed in service.
(D) Below market Federal loan 
For purposes of this paragraph, the term below market Federal loan means any loan funded in whole or in part with Federal funds if the interest rate payable on such loan is less than the applicable Federal rate in effect under section 1274 (d)(1) (as of the date on which the loan was made). Such term shall not include any loan which would be a below market Federal loan solely by reason of assistance provided under section 106, 107, or 108 of the Housing and Community Development Act of 1974 (as in effect on the date of the enactment of this sentence).
(E) Buildings receiving HOME assistance or Native American housing assistance 

(i) In general Assistance provided under the HOME Investment Partnerships Act (as in effect on the date of the enactment of this subparagraph) or the Native American Housing Assistance and Self-Determination Act of 1996 (25 U.S.C. 4101 et seq.) (as in effect on October 1, 1997) with respect to any building shall not be taken into account under subparagraph (D) if 40 percent or more of the residential units in the building are occupied by individuals whose income is 50 percent or less of area median gross income. Subsection (d)(5)(C) shall not apply to any building to which the preceding sentence applies.
(ii) Special rule for certain high-cost housing areas In the case of a building located in a city described in section 142 (d)(6), clause (i) shall be applied by substituting 25 percent for 40 percent.
(3) Low-income unit 

(A) In general 
The term low-income unit means any unit in a building if
(i) such unit is rent-restricted (as defined in subsection (g)(2)), and
(ii) the individuals occupying such unit meet the income limitation applicable under subsection (g)(1) to the project of which such building is a part.
(B) Exceptions 

(i) In general A unit shall not be treated as a low-income unit unless the unit is suitable for occupancy and used other than on a transient basis.
(ii) Suitability for occupancy For purposes of clause (i), the suitability of a unit for occupancy shall be determined under regulations prescribed by the Secretary taking into account local health, safety, and building codes.
(iii) Transitional housing for homeless For purposes of clause (i), a unit shall be considered to be used other than on a transient basis if the unit contains sleeping accommodations and kitchen and bathroom facilities and is located in a building
(I) which is used exclusively to facilitate the transition of homeless individuals (within the meaning of section 103 of the McKinney-Vento Homeless Assistance Act (42 U.S.C. 11302), as in effect on the date of the enactment of this clause) to independent living within 24 months, and
(II) in which a governmental entity or qualified nonprofit">nonprofit organization (as defined in subsection (h)(5)) provides such individuals with temporary housing and supportive services designed to assist such individuals in locating and retaining permanent housing.
(iv) Single-room occupancy units For purposes of clause (i), a single-room occupancy unit shall not be treated as used on a transient basis merely because it is rented on a month-by-month basis.
(C) Special rule for buildings having 4 or fewer units 
In the case of any building which has 4 or fewer residential rental units, no unit in such building shall be treated as a low-income unit if the units in such building are owned by
(i) any individual who occupies a residential unit in such building, or
(ii) any person who is related (as defined in subsection (d)(2)(D)(iii)) to such individual.
(D) Certain students not to disqualify unit 
A unit shall not fail to be treated as a low-income unit merely because it is occupied
(i) by an individual who is
(I) a student and receiving assistance under title IV of the Social Security Act, or
(II) enrolled in a job training program receiving assistance under the Job Training Partnership Act or under other similar Federal, State, or local laws, or
(ii) entirely by full-time students if such students are
(I) single parents and their children and such parents are not dependents (as defined in section 152, determined without regard to subsections (b)(1), (b)(2), and (d)(1)(B) thereof) of another individual and such children are not dependents (as so defined) of another individual other than a parent of such children, or.[5]
(II) married and file a joint return.
(E) Owner-occupied buildings having 4 or fewer units eligible for credit where development plan 

(i) In general Subparagraph (C) shall not apply to the acquisition or rehabilitation of a building pursuant to a development plan of action sponsored by a State or local government or a qualified nonprofit">nonprofit organization (as defined in subsection (h)(5)(C)).
(ii) Limitation on credit In the case of a building to which clause (i) applies, the applicable fraction shall not exceed 80 percent of the unit fraction.
(iii) Certain unrented units treated as owner-occupied In the case of a building to which clause (i) applies, any unit which is not rented for 90 days or more shall be treated as occupied by the owner of the building as of the 1st day it is not rented.
(4) New building 
The term new building means a building the original use of which begins with the taxpayer.
(5) Existing building 
The term existing building means any building which is not a new building.
(6) Application to estates and trusts 
In the case of an estate or trust, the amount of the credit determined under subsection (a) and any increase in tax under subsection (j) shall be apportioned between the estate or trust and the beneficiaries on the basis of the income of the estate or trust allocable to each.
(7) Impact of tenant’s right of 1st refusal to acquire property 

(A) In general 
No Federal income tax benefit shall fail to be allowable to the taxpayer with respect to any qualified low-income building merely by reason of a right of 1st refusal held by the tenants (in cooperative form or otherwise) or resident management corporation of such building or by a qualified nonprofit">nonprofit organization (as defined in subsection (h)(5)(C)) or government agency to purchase the property after the close of the compliance period for a price which is not less than the minimum purchase price determined under subparagraph (B).
(B) Minimum purchase price 
For purposes of subparagraph (A), the minimum purchase price under this subparagraph is an amount equal to the sum of
(i) the principal amount of outstanding indebtedness secured by the building (other than indebtedness incurred within the 5-year period ending on the date of the sale to the tenants), and
(ii) all Federal, State, and local taxes attributable to such sale.

Except in the case of Federal income taxes, there shall not be taken into account under clause (ii) any additional tax attributable to the application of clause (ii).

(j) Recapture of credit 

(1) In general 
If
(A) as of the close of any taxable year in the compliance period, the amount of the qualified basis of any building with respect to the taxpayer is less than
(B) the amount of such basis as of the close of the preceding taxable year,

then the taxpayers tax under this chapter for the taxable year shall be increased by the credit recapture amount.

(2) Credit recapture amount 
For purposes of paragraph (1), the credit recapture amount is an amount equal to the sum of
(A) the aggregate decrease in the credits allowed to the taxpayer under section 38 for all prior taxable years which would have resulted if the accelerated portion of the credit allowable by reason of this section were not allowed for all prior taxable years with respect to the excess of the amount described in paragraph (1)(B) over the amount described in paragraph (1)(A), plus
(B) interest at the overpayment rate established under section 6621 on the amount determined under subparagraph (A) for each prior taxable year for the period beginning on the due date for filing the return for the prior taxable year involved.

No deduction shall be allowed under this chapter for interest described in subparagraph (B).

(3) Accelerated portion of credit 
For purposes of paragraph (2), the accelerated portion of the credit for the prior taxable years with respect to any amount of basis is the excess of
(A) the aggregate credit allowed by reason of this section (without regard to this subsection) for such years with respect to such basis, over
(B) the aggregate credit which would be allowable by reason of this section for such years with respect to such basis if the aggregate credit which would (but for this subsection) have been allowable for the entire compliance period were allowable ratably over 15 years.
(4) Special rules 

(A) Tax benefit rule 
The tax for the taxable year shall be increased under paragraph (1) only with respect to credits allowed by reason of this section which were used to reduce tax liability. In the case of credits not so used to reduce tax liability, the carryforwards and carrybacks under section 39 shall be appropriately adjusted.
(B) Only basis for which credit allowed taken into account 
Qualified basis shall be taken into account under paragraph (1)(B) only to the extent such basis was taken into account in determining the credit under subsection (a) for the preceding taxable year referred to in such paragraph.
(C) No recapture of additional credit allowable by reason of subsection (f)(3) 
Paragraph (1) shall apply to a decrease in qualified basis only to the extent such decrease exceeds the amount of qualified basis with respect to which a credit was allowable for the taxable year referred to in paragraph (1)(B) by reason of subsection (f)(3).
(D) No credits against tax 
Any increase in tax under this subsection shall not be treated as a tax imposed by this chapter for purposes of determining the amount of any credit under this chapter.
(E) No recapture by reason of casualty loss 
The increase in tax under this subsection shall not apply to a reduction in qualified basis by reason of a casualty loss to the extent such loss is restored by reconstruction or replacement within a reasonable period established by the Secretary.
(F) No recapture where de minimis changes in floor space 
The Secretary may provide that the increase in tax under this subsection shall not apply with respect to any building if
(i) such increase results from a de minimis change in the floor space fraction under subsection (c)(1), and
(ii) the building is a qualified low-income building after such change.
(5) Certain partnerships treated as the taxpayer 

(A) In general 
For purposes of applying this subsection to a partnership to which this paragraph applies
(i) such partnership shall be treated as the taxpayer to which the credit allowable under subsection (a) was allowed,
(ii) the amount of such credit allowed shall be treated as the amount which would have been allowed to the partnership were such credit allowable to such partnership,
(iii) paragraph (4)(A) shall not apply, and
(iv) the amount of the increase in tax under this subsection for any taxable year shall be allocated among the partners of such partnership in the same manner as such partnerships taxable income for such year is allocated among such partners.
(B) Partnerships to which paragraph applies 
This paragraph shall apply to any partnership which has 35 or more partners unless the partnership elects not to have this paragraph apply.
(C) Special rules 

(i) Husband and wife treated as 1 partner For purposes of subparagraph (B)(i), a husband and wife (and their estates) shall be treated as 1 partner.
(ii) Election irrevocable Any election under subparagraph (B), once made, shall be irrevocable.
(6) No recapture on disposition of building (or interest therein) where bond posted 
In the case of a disposition of a building or an interest therein, the taxpayer shall be discharged from liability for any additional tax under this subsection by reason of such disposition if
(A) the taxpayer furnishes to the Secretary a bond in an amount satifactory[6] to the Secretary and for the period required by the Secretary, and
(B) it is reasonably expected that such building will continue to be operated as a qualified low-income building for the remaining compliance period with respect to such building.
(k) Application of at-risk rules 
For purposes of this section
(1) In general 
Except as otherwise provided in this subsection, rules similar to the rules of section 49 (a)(1) (other than subparagraphs (D)(ii)(II) and (D)(iv)(I) thereof), section 49 (a)(2), and section 49 (b)(1) shall apply in determining the qualified basis of any building in the same manner as such sections apply in determining the credit base of property.
(2) Special rules for determining qualified person 
For purposes of paragraph (1)
(A) In general 
If the requirements of subparagraphs (B), (C), and (D) are met with respect to any financing borrowed from a qualified nonprofit">nonprofit organization (as defined in subsection (h)(5)), the determination of whether such financing is qualified commercial financing with respect to any qualified low-income building shall be made without regard to whether such organization
(i) is actively and regularly engaged in the business of lending money, or
(ii) is a person described in section 49 (a)(1)(D)(iv)(II).
(B) Financing secured by property 
The requirements of this subparagraph are met with respect to any financing if such financing is secured by the qualified low-income building, except that this subparagraph shall not apply in the case of a federally assisted building described in subsection (d)(6)(B) if
(i) a security interest in such building is not permitted by a Federal agency holding or insuring the mortgage secured by such building, and
(ii) the proceeds from the financing (if any) are applied to acquire or improve such building..[7]
(C) Portion of building attributable to financing 
The requirements of this subparagraph are met with respect to any financing for any taxable year in the compliance period if, as of the close of such taxable year, not more than 60 percent of the eligible basis of the qualified low-income building is attributable to such financing (reduced by the principal and interest of any governmental financing which is part of a wrap-around mortgage involving such financing).
(D) Repayment of principal and interest 
The requirements of this subparagraph are met with respect to any financing if such financing is fully repaid on or before the earliest of
(i) the date on which such financing matures,
(ii) the 90th day after the close of the compliance period with respect to the qualified low-income building, or
(iii) the date of its refinancing or the sale of the building to which such financing relates.

In the case of a qualified nonprofit">nonprofit organization which is not described in section 49 (a)(1)(D)(iv)(II) with respect to a building, clause (ii) of this subparagraph shall be applied as if the date described therein were the 90th day after the earlier of the date the building ceases to be a qualified low-income building or the date which is 15 years after the close of a compliance period with respect thereto.

(3) Present value of financing 
If the rate of interest on any financing described in paragraph (2)(A) is less than the rate which is 1 percentage point below the applicable Federal rate as of the time such financing is incurred, then the qualified basis (to which such financing relates) of the qualified low-income building shall be the present value of the amount of such financing, using as the discount rate such applicable Federal rate. For purposes of the preceding sentence, the rate of interest on any financing shall be determined by treating interest to the extent of government subsidies as not payable.
(4) Failure to fully repay 

(A) In general 
To the extent that the requirements of paragraph (2)(D) are not met, then the taxpayers tax under this chapter for the taxable year in which such failure occurs shall be increased by an amount equal to the applicable portion of the credit under this section with respect to such building, increased by an amount of interest for the period
(i) beginning with the due date for the filing of the return of tax imposed by chapter 1 for the 1st taxable year for which such credit was allowable, and
(ii) ending with the due date for the taxable year in which such failure occurs,

determined by using the underpayment rate and method under section 6621.

(B) Applicable portion 
For purposes of subparagraph (A), the term applicable portion means the aggregate decrease in the credits allowed to a taxpayer under section 38 for all prior taxable years which would have resulted if the eligible basis of the building were reduced by the amount of financing which does not meet requirements of paragraph (2)(D).
(C) Certain rules to apply 
Rules similar to the rules of subparagraphs (A) and (D) of subsection (j)(4) shall apply for purposes of this subsection.
(l) Certifications and other reports to Secretary 

(1) Certification with respect to 1st year of credit period 
Following the close of the 1st taxable year in the credit period with respect to any qualified low-income building, the taxpayer shall certify to the Secretary (at such time and in such form and in such manner as the Secretary prescribes)
(A) the taxable year, and calendar year, in which such building was placed in service,
(B) the adjusted basis and eligible basis of such building as of the close of the 1st year of the credit period,
(C) the maximum applicable percentage and qualified basis permitted to be taken into account by the appropriate housing credit agency under subsection (h),
(D) the election made under subsection (g) with respect to the qualified low-income housing project of which such building is a part, and
(E) such other information as the Secretary may require.

In the case of a failure to make the certification required by the preceding sentence on the date prescribed therefor, unless it is shown that such failure is due to reasonable cause and not to willful neglect, no credit shall be allowable by reason of subsection (a) with respect to such building for any taxable year ending before such certification is made.

(2) Annual reports to the Secretary 
The Secretary may require taxpayers to submit an information return (at such time and in such form and manner as the Secretary prescribes) for each taxable year setting forth
(A) the qualified basis for the taxable year of each qualified low-income building of the taxpayer,
(B) the information described in paragraph (1)(C) for the taxable year, and
(C) such other information as the Secretary may require.

The penalty under section 6652 (j) shall apply to any failure to submit the return required by the Secretary under the preceding sentence on the date prescribed therefor.

(3) Annual reports from housing credit agencies 
Each agency which allocates any housing credit amount to any building for any calendar year shall submit to the Secretary (at such time and in such manner as the Secretary shall prescribe) an annual report specifying
(A) the amount of housing credit amount allocated to each building for such year,
(B) sufficient information to identify each such building and the taxpayer with respect thereto, and
(C) such other information as the Secretary may require.

The penalty under section 6652 (j) shall apply to any failure to submit the report required by the preceding sentence on the date prescribed therefor.

(m) Responsibilities of housing credit agencies 

(1) Plans for allocation of credit among projects 

(A) In general 
Notwithstanding any other provision of this section, the housing credit dollar amount with respect to any building shall be zero unless
(i) such amount was allocated pursuant to a qualified allocation plan of the housing credit agency which is approved by the governmental unit (in accordance with rules similar to the rules of section 147 (f)(2) (other than subparagraph (B)(ii) thereof)) of which such agency is a part,
(ii) such agency notifies the chief executive officer (or the equivalent) of the local jurisdiction within which the building is located of such project and provides such individual a reasonable opportunity to comment on the project,
(iii) a comprehensive market study of the housing needs of low-income individuals in the area to be served by the project is conducted before the credit allocation is made and at the developers expense by a disinterested party who is approved by such agency, and
(iv) a written explanation is available to the general public for any allocation of a housing credit dollar amount which is not made in accordance with established priorities and selection criteria of the housing credit agency.
(B) Qualified allocation plan 
For purposes of this paragraph, the term qualified allocation plan means any plan
(i) which sets forth selection criteria to be used to determine housing priorities of the housing credit agency which are appropriate to local conditions,
(ii) which also gives preference in allocating housing credit dollar amounts among selected projects to
(I) projects serving the lowest income tenants,
(II) projects obligated to serve qualified tenants for the longest periods, and
(III) projects which are located in qualified census tracts (as defined in subsection (d)(5)(C)) and the development of which contributes to a concerted community revitalization plan, and
(iii) which provides a procedure that the agency (or an agent or other private contractor of such agency) will follow in monitoring for noncompliance with the provisions of this section and in notifying the Internal Revenue Service of such noncompliance which such agency becomes aware of and in monitoring for noncompliance with habitability standards through regular site visits.
(C) Certain selection criteria must be used 
The selection criteria set forth in a qualified allocation plan must include
(i) project location,
(ii) housing needs characteristics,
(iii) project characteristics, including whether the project includes the use of existing housing as part of a community revitalization plan,
(iv) sponsor characteristics,
(v) tenant populations with special housing needs,
(vi) public housing waiting lists,
(vii) tenant populations of individuals with children, and
(viii) projects intended for eventual tenant ownership.
(D) Application to bond financed projects 
Subsection (h)(4) shall not apply to any project unless the project satisfies the requirements for allocation of a housing credit dollar amount under the qualified allocation plan applicable to the area in which the project is located.
(2) Credit allocated to building not to exceed amount necessary to assure project feasibility 

(A) In general 
The housing credit dollar amount allocated to a project shall not exceed the amount the housing credit agency determines is necessary for the financial feasibility of the project and its viability as a qualified low-income housing project throughout the credit period.
(B) Agency evaluation 
In making the determination under subparagraph (A), the housing credit agency shall consider
(i) the sources and uses of funds and the total financing planned for the project,
(ii) any proceeds or receipts expected to be generated by reason of tax benefits,
(iii) the percentage of the housing credit dollar amount used for project costs other than the cost of intermediaries, and
(iv) the reasonableness of the developmental and operational costs of the project.

Clause (iii) shall not be applied so as to impede the development of projects in hard-to-develop areas. Such a determination shall not be construed to be a representation or warranty as to the feasibility or viability of the project.

(C) Determination made when credit amount applied for and when building placed in service 

(i) In general A determination under subparagraph (A) shall be made as of each of the following times:
(I) The application for the housing credit dollar amount.
(II) The allocation of the housing credit dollar amount.
(III) The date the building is placed in service.
(ii) Certification as to amount of other subsidies Prior to each determination under clause (i), the taxpayer shall certify to the housing credit agency the full extent of all Federal, State, and local subsidies which apply (or which the taxpayer expects to apply) with respect to the building.
(D) Application to bond financed projects 
Subsection (h)(4) shall not apply to any project unless the governmental unit which issued the bonds (or on behalf of which the bonds were issued) makes a determination under rules similar to the rules of subparagraphs (A) and (B).
(n) Regulations 
The Secretary shall prescribe such regulations as may be necessary or appropriate to carry out the purposes of this section, including regulations
(1) dealing with
(A) projects which include more than 1 building or only a portion of a building,
(B) buildings which are placed in service in portions,
(2) providing for the application of this section to short taxable years,
(3) preventing the avoidance of the rules of this section, and
(4) providing the opportunity for housing credit agencies to correct administrative errors and omissions with respect to allocations and record keeping within a reasonable period after their discovery, taking into account the availability of regulations and other administrative guidance from the Secretary.
[1] See References in Text note below.
[2] So in original. Probably should be “sections”.
[3] So in original. Probably should be “etc.,”.
[4] So in original. The semicolon probably should be a comma.
[5] So in original. The period probably should not appear.
[6] So in original. Probably should be “satisfactory”.
[7] So in original.

26 USC 43 - Enhanced oil recovery credit

(a) General rule 
For purposes of section 38, the enhanced oil recovery credit for any taxable year is an amount equal to 15 percent of the taxpayers qualified enhanced oil recovery costs for such taxable year.
(b) Phase-out of credit as crude oil prices increase 

(1) In general 
The amount of the credit determined under subsection (a) for any taxable year shall be reduced by an amount which bears the same ratio to the amount of such credit (determined without regard to this paragraph) as
(A) the amount by which the reference price for the calendar year preceding the calendar year in which the taxable year begins exceeds $28, bears to
(B) $6.
(2) Reference price 
For purposes of this subsection, the term reference price means, with respect to any calendar year, the reference price determined for such calendar year under section 45K (d)(2)(C).
(3) Inflation adjustment 

(A) In general 
In the case of any taxable year beginning in a calendar year after 1991, there shall be substituted for the $28 amount under paragraph (1)(A) an amount equal to the product of
(i) $28, multiplied by
(ii) the inflation adjustment factor for such calendar year.
(B) Inflation adjustment factor 
The term inflation adjustment factor means, with respect to any calendar year, a fraction the numerator of which is the GNP implicit price deflator for the preceding calendar year and the denominator of which is the GNP implicit price deflator for 1990. For purposes of the preceding sentence, the term GNP implicit price deflator means the first revision of the implicit price deflator for the gross national product as computed and published by the Secretary of Commerce. Not later than April 1 of any calendar year, the Secretary shall publish the inflation adjustment factor for the preceding calendar year.
(c) Qualified enhanced oil recovery costs 
For purposes of this section
(1) In general 
The term qualified enhanced oil recovery costs means any of the following:
(A) Any amount paid or incurred during the taxable year for tangible property
(i) which is an integral part of a qualified enhanced oil recovery project, and
(ii) with respect to which depreciation (or amortization in lieu of depreciation) is allowable under this chapter.
(B) Any intangible drilling and development costs
(i) which are paid or incurred in connection with a qualified enhanced oil recovery project, and
(ii) with respect to which the taxpayer may make an election under section 263 (c) for the taxable year.
(C) Any qualified tertiary injectant expenses (as defined in section 193 (b)) which are paid or incurred in connection with a qualified enhanced oil recovery project and for which a deduction is allowable for the taxable year.
(D) Any amount which is paid or incurred during the taxable year to construct a gas treatment plant which
(i) is located in the area of the United States (within the meaning of section 638 (1)) lying north of 64 degrees North latitude,
(ii) prepares Alaska natural gas for transportation through a pipeline with a capacity of at least 2,000,000,000,000 Btu of natural gas per day, and
(iii) produces carbon dioxide which is injected into hydrocarbon-bearing geological formations.
(2) Qualified enhanced oil recovery project 
For purposes of this subsection
(A) In general 
The term qualified enhanced oil recovery project means any project
(i) which involves the application (in accordance with sound engineering principles) of 1 or more tertiary recovery methods (as defined in section 193 (b)(3)) which can reasonably be expected to result in more than an insignificant increase in the amount of crude oil which will ultimately be recovered,
(ii) which is located within the United States (within the meaning of section 638 (1)), and
(iii) with respect to which the first injection of liquids, gases, or other matter commences after December 31, 1990.
(B) Certification 
A project shall not be treated as a qualified enhanced oil recovery project unless the operator submits to the Secretary (at such times and in such manner as the Secretary provides) a certification from a petroleum engineer that the project meets (and continues to meet) the requirements of subparagraph (A).
(3) At-risk limitation 
For purposes of determining qualified enhanced oil recovery costs, rules similar to the rules of section 49 (a)(1), section 49(a)(2), and section 49 (b) shall apply.
(4) Special rule for certain gas displacement projects 
For purposes of this section, immiscible non-hydrocarbon gas displacement shall be treated as a tertiary recovery method under section 193 (b)(3).
(5) Alaska natural gas 
For purposes of paragraph (1)(D)
(A) In general 
The term Alaska natural gas means natural gas entering the Alaska natural gas pipeline (as defined in section 168 (i)(16) (determined without regard to subparagraph (B) thereof)) which is produced from a well
(i) located in the area of the State of Alaska lying north of 64 degrees North latitude, determined by excluding the area of the Alaska National Wildlife Refuge (including the continental shelf thereof within the meaning of section 638 (1)), and
(ii) pursuant to the applicable State and Federal pollution prevention, control, and permit requirements from such area (including the continental shelf thereof within the meaning of section 638 (1)).
(B) Natural gas 
The term natural gas has the meaning given such term by section 613A (e)(2).
(d) Other rules 

(1) Disallowance of deduction 
Any deduction allowable under this chapter for any costs taken into account in computing the amount of the credit determined under subsection (a) shall be reduced by the amount of such credit attributable to such costs.
(2) Basis adjustments 
For purposes of this subtitle, if a credit is determined under this section for any expenditure with respect to any property, the increase in the basis of such property which would (but for this subsection) result from such expenditure shall be reduced by the amount of the credit so allowed.
(e) Election to have credit not apply 

(1) In general 
A taxpayer may elect to have this section not apply for any taxable year.
(2) Time for making election 
An election under paragraph (1) for any taxable year may be made (or revoked) at any time before the expiration of the 3-year period beginning on the last date prescribed by law for filing the return for such taxable year (determined without regard to extensions).
(3) Manner of making election 
An election under paragraph (1) (or revocation thereof) shall be made in such manner as the Secretary may by regulations prescribe.

26 USC 44 - Expenditures to provide access to disabled individuals

(a) General rule 
For purposes of section 38, in the case of an eligible small business, the amount of the disabled access credit determined under this section for any taxable year shall be an amount equal to 50 percent of so much of the eligible access expenditures for the taxable year as exceed $250 but do not exceed $10,250.
(b) Eligible small business 
For purposes of this section, the term eligible small business means any person if
(1) either
(A) the gross receipts of such person for the preceding taxable year did not exceed $1,000,000, or
(B) in the case of a person to which subparagraph (A) does not apply, such person employed not more than 30 full-time employees during the preceding taxable year, and
(2) such person elects the application of this section for the taxable year.

For purposes of paragraph (1)(B), an employee shall be considered full-time if such employee is employed at least 30 hours per week for 20 or more calendar weeks in the taxable year.

(c) Eligible access expenditures 
For purposes of this section
(1) In general 
The term eligible access expenditures means amounts paid or incurred by an eligible small business for the purpose of enabling such eligible small business to comply with applicable requirements under the Americans With Disabilities Act of 1990 (as in effect on the date of the enactment of this section).
(2) Certain expenditures included 
The term eligible access expenditures includes amounts paid or incurred
(A) for the purpose of removing architectural, communication, physical, or transportation barriers which prevent a business from being accessible to, or usable by, individuals with disabilities,
(B) to provide qualified interpreters or other effective methods of making aurally delivered materials available to individuals with hearing impairments,
(C) to provide qualified readers, taped texts, and other effective methods of making visually delivered materials available to individuals with visual impairments,
(D) to acquire or modify equipment or devices for individuals with disabilities, or
(E) to provide other similar services, modifications, materials, or equipment.
(3) Expenditures must be reasonable 
Amounts paid or incurred for the purposes described in paragraph (2) shall include only expenditures which are reasonable and shall not include expenditures which are unnecessary to accomplish such purposes.
(4) Expenses in connection with new construction are not eligible 
The term eligible access expenditures shall not include amounts described in paragraph (2)(A) which are paid or incurred in connection with any facility first placed in service after the date of the enactment of this section.
(5) Expenditures must meet standards 
The term eligible access expenditures shall not include any amount unless the taxpayer establishes, to the satisfaction of the Secretary, that the resulting removal of any barrier (or the provision of any services, modifications, materials, or equipment) meets the standards promulgated by the Secretary with the concurrence of the Architectural and Transportation Barriers Compliance Board and set forth in regulations prescribed by the Secretary.
(d) Definition of disability; special rules 
For purposes of this section
(1) Disability 
The term disability has the same meaning as when used in the Americans With Disabilities Act of 1990 (as in effect on the date of the enactment of this section).
(2) Controlled groups 

(A) In general 
All members of the same controlled group of corporations (within the meaning of section 52 (a)) and all persons under common control (within the meaning of section 52 (b)) shall be treated as 1 person for purposes of this section.
(B) Dollar limitation 
The Secretary shall apportion the dollar limitation under subsection (a) among the members of any group described in subparagraph (A) in such manner as the Secretary shall by regulations prescribe.
(3) Partnerships and S corporations 
In the case of a partnership, the limitation under subsection (a) shall apply with respect to the partnership and each partner. A similar rule shall apply in the case of an S corporation and its shareholders.
(4) Short years 
The Secretary shall prescribe such adjustments as may be appropriate for purposes of paragraph (1) of subsection (b) if the preceding taxable year is a taxable year of less than 12 months.
(5) Gross receipts 
Gross receipts for any taxable year shall be reduced by returns and allowances made during such year.
(6) Treatment of predecessors 
The reference to any person in paragraph (1) of subsection (b) shall be treated as including a reference to any predecessor.
(7) Denial of double benefit 
In the case of the amount of the credit determined under this section
(A) no deduction or credit shall be allowed for such amount under any other provision of this chapter, and
(B) no increase in the adjusted basis of any property shall result from such amount.
(e) Regulations 
The Secretary shall prescribe regulations necessary to carry out the purposes of this section.

26 USC 44A - Renumbered 21]

26 USC 44B - Repealed. Pub. L. 98369, div. A, title IV, 474(m)(1), July 18, 1984, 98 Stat. 833]

Section, added Pub. L. 95–30, title II, § 202(a), May 23, 1977, 91 Stat. 141; amended Pub. L. 95–600, title III, § 321(b)(1), Nov. 6, 1978, 92 Stat. 2834; Pub. L. 96–222, title I, § 103(a)(6)(G)(i), (ii), Apr. 1, 1980, 94 Stat. 210, related to credit for employment of certain new employees.

26 USC 44C - Renumbered 23]

26 USC 44D - Renumbered 29]

26 USC 44E - Renumbered 40]

26 USC 44F - Renumbered 30]

26 USC 44G - Renumbered 41]

26 USC 44H - Renumbered 45C]

26 USC 45 - Electricity produced from certain renewable resources, etc.

(a) General rule 
For purposes of section 38, the renewable electricity production credit for any taxable year is an amount equal to the product of
(1) 1.5 cents, multiplied by
(2) the kilowatt hours of electricity
(A) produced by the taxpayer
(i) from qualified energy resources, and
(ii) at a qualified facility during the 10-year period beginning on the date the facility was originally placed in service, and
(B) sold by the taxpayer to an unrelated person during the taxable year.
(b) Limitations and adjustments 

(1) Phaseout of credit 
The amount of the credit determined under subsection (a) shall be reduced by an amount which bears the same ratio to the amount of the credit (determined without regard to this paragraph) as
(A) the amount by which the reference price for the calendar year in which the sale occurs exceeds 8 cents, bears to
(B) 3 cents.
(2) Credit and phaseout adjustment based on inflation 
The 1.5 cent amount in subsection (a), the 8 cent amount in paragraph (1), the $4.375 amount in subsection (e)(8)(A), and in subsection (e)(8)(B)(i) the reference price of fuel used as a feedstock (within the meaning of subsection (c)(7)(A)) in 2002 shall each be adjusted by multiplying such amount by the inflation adjustment factor for the calendar year in which the sale occurs. If any amount as increased under the preceding sentence is not a multiple of 0.1 cent, such amount shall be rounded to the nearest multiple of 0.1 cent.
(3) Credit reduced for grants, tax-exempt bonds, subsidized energy financing, and other credits 
The amount of the credit determined under subsection (a) with respect to any project for any taxable year (determined after the application of paragraphs (1) and (2)) shall be reduced by the amount which is the product of the amount so determined for such year and the lesser of 1/2 or a fraction
(A) the numerator of which is the sum, for the taxable year and all prior taxable years, of
(i) grants provided by the United States, a State, or a political subdivision of a State for use in connection with the project,
(ii) proceeds of an issue of State or local government obligations used to provide financing for the project the interest on which is exempt from tax under section 103,
(iii) the aggregate amount of subsidized energy financing provided (directly or indirectly) under a Federal, State, or local program provided in connection with the project, and
(iv) the amount of any other credit allowable with respect to any property which is part of the project, and
(B) the denominator of which is the aggregate amount of additions to the capital account for the project for the taxable year and all prior taxable years.

The amounts under the preceding sentence for any taxable year shall be determined as of the close of the taxable year. This paragraph shall not apply with respect to any facility described in subsection (d)(2)(A)(ii).

(4) Credit rate and period for electricity produced and sold from certain facilities 

(A) Credit rate 
In the case of electricity produced and sold in any calendar year after 2003 at any qualified facility described in paragraph (3), (5), (6), (7), or (9) of subsection (d), the amount in effect under subsection (a)(1) for such calendar year (determined before the application of the last sentence of paragraph (2) of this subsection) shall be reduced by one-half.
(B) Credit period 

(i) In general Except as provided in clause (ii) or clause (iii), in the case of any facility described in paragraph (3), (4), (5), (6), or (7) of subsection (d), the 5-year period beginning on the date the facility was originally placed in service shall be substituted for the 10-year period in subsection (a)(2)(A)(ii).
(ii) Certain open-loop biomass facilities In the case of any facility described in subsection (d)(3)(A)(ii) placed in service before the date of the enactment of this paragraph, the 5-year period beginning on January 1, 2005, shall be substituted for the 10-year period in subsection (a)(2)(A)(ii).
(iii) Termination Clause (i) shall not apply to any facility placed in service after the date of the enactment of this clause.
(c) Resources 
For purposes of this section:
(1) In general 
The term qualified energy resources means
(A) wind,
(B) closed-loop biomass,
(C) open-loop biomass,
(D) geothermal energy,
(E) solar energy,
(F) small irrigation power,
(G) municipal solid waste, and
(H) qualified hydropower production.
(2) Closed-loop biomass 
The term closed-loop biomass means any organic material from a plant which is planted exclusively for purposes of being used at a qualified facility to produce electricity.
(3) Open-loop biomass 

(A) In general 
The term open-loop biomass means
(i) any agricultural livestock waste nutrients, or
(ii) any solid, nonhazardous, cellulosic waste material or any lignin material which is derived from
(I) any of the following forest-related resources: mill and harvesting residues, precommercial thinnings, slash, and brush,
(II) solid wood waste materials, including waste pallets, crates, dunnage, manufacturing and construction wood wastes (other than pressure-treated, chemically-treated, or painted wood wastes), and landscape or right-of-way tree trimmings, but not including municipal solid waste, gas derived from the biodegradation of solid waste, or paper which is commonly recycled, or
(III) agriculture sources, including orchard tree crops, vineyard, grain, legumes, sugar, and other crop by-products or residues.

Such term shall not include closed-loop biomass or biomass burned in conjunction with fossil fuel (cofiring) beyond such fossil fuel required for startup and flame stabilization.

(B) Agricultural livestock waste nutrients 

(i) In general The term agricultural livestock waste nutrients means agricultural livestock manure and litter, including wood shavings, straw, rice hulls, and other bedding material for the disposition of manure.
(ii) Agricultural livestock The term agricultural livestock includes bovine, swine, poultry, and sheep.
(4) Geothermal energy 
The term geothermal energy means energy derived from a geothermal deposit (within the meaning of section 613 (e)(2)).
(5) Small irrigation power 
The term small irrigation power means power
(A) generated without any dam or impoundment of water through an irrigation system canal or ditch, and
(B) the nameplate capacity rating of which is not less than 150 kilowatts but is less than 5 megawatts.
(6) Municipal solid waste 
The term municipal solid waste has the meaning given the term solid waste under section 2(27)1 of the Solid Waste Disposal Act (42 U.S.C. 6903).
(7) Refined coal 

(A) In general 
The term refined coal means a fuel which
(i) is a liquid, gaseous, or solid fuel produced from coal (including lignite) or high carbon fly ash, including such fuel used as a feedstock,
(ii) is sold by the taxpayer with the reasonable expectation that it will be used for[2] purpose of producing steam,
(iii) is certified by the taxpayer as resulting (when used in the production of steam) in a qualified emission reduction, and
(iv) is produced in such a manner as to result in an increase of at least 50 percent in the market value of the refined coal (excluding any increase caused by materials combined or added during the production process), as compared to the value of the feedstock coal.
(B) Qualified emission reduction 
The term qualified emission reduction means a reduction of at least 20 percent of the emissions of nitrogen oxide and either sulfur dioxide or mercury released when burning the refined coal (excluding any dilution caused by materials combined or added during the production process), as compared to the emissions released when burning the feedstock coal or comparable coal predominantly available in the marketplace as of January 1, 2003.
(8) Qualified hydropower production 

(A) In general 
The term qualified hydropower production means
(i) in the case of any hydroelectric dam which was placed in service on or before the date of the enactment of this paragraph, the incremental hydropower production for the taxable year, and
(ii) in the case of any nonhydroelectric dam described in subparagraph (C), the hydropower production from the facility for the taxable year.
(B) Determination of incremental hydropower production 

(i) In general For purposes of subparagraph (A), incremental hydropower production for any taxable year shall be equal to the percentage of average annual hydropower production at the facility attributable to the efficiency improvements or additions of capacity placed in service after the date of the enactment of this paragraph, determined by using the same water flow information used to determine an historic average annual hydropower production baseline for such facility. Such percentage and baseline shall be certified by the Federal Energy Regulatory Commission.
(ii) Operational changes disregarded For purposes of clause (i), the determination of incremental hydropower production shall not be based on any operational changes at such facility not directly associated with the efficiency improvements or additions of capacity.
(C) Nonhydroelectric dam 
For purposes of subparagraph (A), a facility is described in this subparagraph if
(i) the facility is licensed by the Federal Energy Regulatory Commission and meets all other applicable environmental, licensing, and regulatory requirements,
(ii) the facility was placed in service before the date of the enactment of this paragraph and did not produce hydroelectric power on the date of the enactment of this paragraph, and
(iii) turbines or other generating devices are to be added to the facility after such date to produce hydroelectric power, but only if there is not any enlargement of the diversion structure, or construction or enlargement of a bypass channel, or the impoundment or any withholding of any additional water from the natural stream channel.
(9) Indian coal 

(A) In general 
The term Indian coal means coal which is produced from coal reserves which, on June 14, 2005
(i) were owned by an Indian tribe, or
(ii) were held in trust by the United States for the benefit of an Indian tribe or its members.
(B) Indian tribe 
For purposes of this paragraph, the term Indian tribe has the meaning given such term by section 7871 (c)(3)(E)(ii).
(d) Qualified facilities 
For purposes of this section:
(1) Wind facility 
In the case of a facility using wind to produce electricity, the term qualified facility means any facility owned by the taxpayer which is originally placed in service after December 31, 1993, and before January 1, 2009.
(2) Closed-loop biomass facility 

(A) In general 
In the case of a facility using closed-loop biomass to produce electricity, the term qualified facility means any facility
(i) owned by the taxpayer which is originally placed in service after December 31, 1992, and before January 1, 2009, or
(ii) owned by the taxpayer which before January 1, 2009, is originally placed in service and modified to use closed-loop biomass to co-fire with coal, with other biomass, or with both, but only if the modification is approved under the Biomass Power for Rural Development Programs or is part of a pilot project of the Commodity Credit Corporation as described in 65 Fed. Reg. 63052.
(B) Special rules 
In the case of a qualified facility described in subparagraph (A)(ii)
(i) the 10-year period referred to in subsection (a) shall be treated as beginning no earlier than the date of the enactment of this clause, and
(ii) if the owner of such facility is not the producer of the electricity, the person eligible for the credit allowable under subsection (a) shall be the lessee or the operator of such facility.
(3) Open-loop biomass facilities 

(A) In general 
In the case of a facility using open-loop biomass to produce electricity, the term qualified facility means any facility owned by the taxpayer which
(i) in the case of a facility using agricultural livestock waste nutrients
(I) is originally placed in service after the date of the enactment of this subclause and before January 1, 2009, and
(II) the nameplate capacity rating of which is not less than 150 kilowatts, and
(ii) in the case of any other facility, is originally placed in service before January 1, 2009.
(B) Credit eligibility 
In the case of any facility described in subparagraph (A), if the owner of such facility is not the producer of the electricity, the person eligible for the credit allowable under subsection (a) shall be the lessee or the operator of such facility.
(4) Geothermal or solar energy facility 
In the case of a facility using geothermal or solar energy to produce electricity, the term qualified facility means any facility owned by the taxpayer which is originally placed in service after the date of the enactment of this paragraph and before January 1, 2009 (January 1, 2006, in the case of a facility using solar energy). Such term shall not include any property described in section 48 (a)(3) the basis of which is taken into account by the taxpayer for purposes of determining the energy credit under section 48.
(5) Small irrigation power facility 
In the case of a facility using small irrigation power to produce electricity, the term qualified facility means any facility owned by the taxpayer which is originally placed in service after the date of the enactment of this paragraph and before January 1, 2009.
(6) Landfill gas facilities 
In the case of a facility producing electricity from gas derived from the biodegradation of municipal solid waste, the term qualified facility means any facility owned by the taxpayer which is originally placed in service after the date of the enactment of this paragraph and before January 1, 2009.
(7) Trash combustion facilities 
In the case of a facility which burns municipal solid waste to produce electricity, the term qualified facility means any facility owned by the taxpayer which is originally placed in service after the date of the enactment of this paragraph and before January 1, 2009. Such term shall include a new unit placed in service in connection with a facility placed in service on or before the date of the enactment of this paragraph, but only to the extent of the increased amount of electricity produced at the facility by reason of such new unit.
(8) Refined coal production facility 
In the case of a facility that produces refined coal, the term refined coal production facility means a facility which is placed in service after the date of the enactment of this paragraph and before January 1, 2009.
(9) Qualified hydropower facility 
In the case of a facility producing qualified hydroelectric production described in subsection (c)(8), the term qualified facility means
(A) in the case of any facility producing incremental hydropower production, such facility but only to the extent of its incremental hydropower production attributable to efficiency improvements or additions to capacity described in subsection (c)(8)(B) placed in service after the date of the enactment of this paragraph and before January 1, 2009, and
(B) any other facility placed in service after the date of the enactment of this paragraph and before January 1, 2009.
(C) Credit period.— 
In the case of a qualified facility described in subparagraph (A), the 10-year period referred to in subsection (a) shall be treated as beginning on the date the efficiency improvements or additions to capacity are placed in service.
(10) Indian coal production facility 
In the case of a facility that produces Indian coal, the term Indian coal production facility means a facility which is placed in service before January 1, 2009.
(e) Definitions and special rules 
For purposes of this section
(1) Only production in the United States taken into account 
Sales shall be taken into account under this section only with respect to electricity the production of which is within
(A) the United States (within the meaning of section 638 (1)), or
(B) a possession of the United States (within the meaning of section 638 (2)).
(2) Computation of inflation adjustment factor and reference price 

(A) In general 
The Secretary shall, not later than April 1 of each calendar year, determine and publish in the Federal Register the inflation adjustment factor and the reference price for such calendar year in accordance with this paragraph.
(B) Inflation adjustment factor 
The term inflation adjustment factor means, with respect to a calendar year, a fraction the numerator of which is the GDP implicit price deflator for the preceding calendar year and the denominator of which is the GDP implicit price deflator for the calendar year 1992. The term GDP implicit price deflator means the most recent revision of the implicit price deflator for the gross domestic product as computed and published by the Department of Commerce before March 15 of the calendar year.
(C) Reference price 
The term reference price means, with respect to a calendar year, the Secretarys determination of the annual average contract price per kilowatt hour of electricity generated from the same qualified energy resource and sold in the previous year in the United States. For purposes of the preceding sentence, only contracts entered into after December 31, 1989, shall be taken into account.
(3) Production attributable to the taxpayer 
In the case of a facility in which more than 1 person has an ownership interest, except to the extent provided in regulations prescribed by the Secretary, production from the facility shall be allocated among such persons in proportion to their respective ownership interests in the gross sales from such facility.
(4) Related persons 
Persons shall be treated as related to each other if such persons would be treated as a single employer under the regulations prescribed under section 52 (b). In the case of a corporation which is a member of an affiliated group of corporations filing a consolidated return, such corporation shall be treated as selling electricity to an unrelated person if such electricity is sold to such a person by another member of such group.
(5) Pass-thru in the case of estates and trusts 
Under regulations prescribed by the Secretary, rules similar to the rules of subsection (d) of section 52 shall apply.
[(6) Repealed. Pub. L. 109–58, title XIII, § 1301(f)(3), Aug. 8, 2005, 119 Stat. 990] 
(7) Credit not to apply to electricity sold to utilities under certain contracts 

(A) In general 
The credit determined under subsection (a) shall not apply to electricity
(i) produced at a qualified facility described in subsection (d)(1) which is originally placed in service after June 30, 1999, and
(ii) sold to a utility pursuant to a contract originally entered into before January 1, 1987 (whether or not amended or restated after that date).
(B) Exception 
Subparagraph (A) shall not apply if
(i) the prices for energy and capacity from such facility are established pursuant to an amendment to the contract referred to in subparagraph (A)(ii),
(ii) such amendment provides that the prices set forth in the contract which exceed avoided cost prices determined at the time of delivery shall apply only to annual quantities of electricity (prorated for partial years) which do not exceed the greater of
(I) the average annual quantity of electricity sold to the utility under the contract during calendar years 1994, 1995, 1996, 1997, and 1998, or
(II) the estimate of the annual electricity production set forth in the contract, or, if there is no such estimate, the greatest annual quantity of electricity sold to the utility under the contract in any of the calendar years 1996, 1997, or 1998, and
(iii) such amendment provides that energy and capacity in excess of the limitation in clause (ii) may be
(I) sold to the utility only at prices that do not exceed avoided cost prices determined at the time of delivery, or
(II) sold to a third party subject to a mutually agreed upon advance notice to the utility.

For purposes of this subparagraph, avoided cost prices shall be determined as provided for in 18 CFR 292.304(d)(1) or any successor regulation.

(8) Refined coal production facilities 

(A) Determination of credit amount 
In the case of a producer of refined coal, the credit determined under this section (without regard to this paragraph) for any taxable year shall be increased by an amount equal to $4.375 per ton of qualified refined coal
(i) produced by the taxpayer at a refined coal production facility during the 10-year period beginning on the date the facility was originally placed in service, and
(ii) sold by the taxpayer
(I) to an unrelated person, and
(II) during such 10-year period and such taxable year.
(B) Phaseout of credit 
The amount of the increase determined under subparagraph (A) shall be reduced by an amount which bears the same ratio to the amount of the increase (determined without regard to this subparagraph) as
(i) the amount by which the reference price of fuel used as a feedstock (within the meaning of subsection (c)(7)(A)) for the calendar year in which the sale occurs exceeds an amount equal to 1.7 multiplied by the reference price for such fuel in 2002, bears to
(ii) $8.75.
(C) Application of rules 
Rules similar to the rules of the subsection (b)(3) and paragraphs (1) through (5) of this subsection shall apply for purposes of determining the amount of any increase under this paragraph.
(9) Coordination with credit for producing fuel from a nonconventional source 

(A) In general 
The term qualified facility shall not include any facility which produces electricity from gas derived from the biodegradation of municipal solid waste if such biodegradation occurred in a facility (within the meaning of section 45K) the production from which is allowed as a credit under section 45K for the taxable year or any prior taxable year.
(B) Refined coal facilities 
The term refined coal production facility shall not include any facility the production from which is allowed as a credit under section 45K for the taxable year or any prior taxable year (or under section 29,1 as in effect on the day before the date of enactment of the Energy Tax Incentives Act of 2005, for any prior taxable year).
(10) Indian coal production facilities 

(A) Determination of credit amount 
In the case of a producer of Indian coal, the credit determined under this section (without regard to this paragraph) for any taxable year shall be increased by an amount equal to the applicable dollar amount per ton of Indian coal
(i) produced by the taxpayer at an Indian coal production facility during the 7-year period beginning on January 1, 2006, and
(ii) sold by the taxpayer
(I) to an unrelated person, and
(II) during such 7-year period and such taxable year.
(B) Applicable dollar amount 

(i) In general The term applicable dollar amount for any taxable year beginning in a calendar year means
(I) $1.50 in the case of calendar years 2006 through 2009, and
(II) $2.00 in the case of calendar years beginning after 2009.
(ii) Inflation adjustment In the case of any calendar year after 2006, each of the dollar amounts under clause (i) shall be equal to the product of such dollar amount and the inflation adjustment factor determined under paragraph (2)(B) for the calendar year, except that such paragraph shall be applied by substituting 2005 for 1992.
(C) Application of rules 
Rules similar to the rules of the subsection (b)(3) and paragraphs (1), (3), (4), and (5) of this subsection shall apply for purposes of determining the amount of any increase under this paragraph.
(D) Treatment as specified credit 
The increase in the credit determined under subsection (a) by reason of this paragraph with respect to any facility shall be treated as a specified credit for purposes of section 38 (c)(4)(A) during the 4-year period beginning on the later of January 1, 2006, or the date on which such facility is placed in service by the taxpayer.
(11) Allocation of credit to patrons of agricultural cooperative 

(A) Election to allocate 

(i) In general In the case of an eligible cooperative organization, any portion of the credit determined under subsection (a) for the taxable year may, at the election of the organization, be apportioned among patrons of the organization on the basis of the amount of business done by the patrons during the taxable year.
(ii) Form and effect of election An election under clause (i) for any taxable year shall be made on a timely filed return for such year. Such election, once made, shall be irrevocable for such taxable year. Such election shall not take effect unless the organization designates the apportionment as such in a written notice mailed to its patrons during the payment period described in section 1382 (d).
(B) Treatment of organizations and patrons 
The amount of the credit apportioned to any patrons under subparagraph (A)
(i) shall not be included in the amount determined under subsection (a) with respect to the organization for the taxable year, and
(ii) shall be included in the amount determined under subsection (a) for the first taxable year of each patron ending on or after the last day of the payment period (as defined in section 1382 (d)) for the taxable year of the organization or, if earlier, for the taxable year of each patron ending on or after the date on which the patron receives notice from the cooperative of the apportionment.
(C) Special rules for decrease in credits for taxable year 
If the amount of the credit of a cooperative organization determined under subsection (a) for a taxable year is less than the amount of such credit shown on the return of the cooperative organization for such year, an amount equal to the excess of
(i) such reduction, over
(ii) the amount not apportioned to such patrons under subparagraph (A) for the taxable year,

shall be treated as an increase in tax imposed by this chapter on the organization. Such increase shall not be treated as tax imposed by this chapter for purposes of determining the amount of any credit under this chapter.

(D) Eligible cooperative defined 
For purposes of this section the term eligible cooperative means a cooperative organization described in section 1381 (a) which is owned more than 50 percent by agricultural producers or by entities owned by agricultural producers. For this purpose an entity owned by an agricultural producer is one that is more than 50 percent owned by agricultural producers.
[1] See References in Text note below.
[2] So in original. The word “the” probably should follow.

26 USC 45A - Indian employment credit

(a) Amount of credit 
For purposes of section 38, the amount of the Indian employment credit determined under this section with respect to any employer for any taxable year is an amount equal to 20 percent of the excess (if any) of
(1) the sum of
(A) the qualified wages paid or incurred during such taxable year, plus
(B) qualified employee health insurance costs paid or incurred during such taxable year, over
(2) the sum of the qualified wages and qualified employee health insurance costs (determined as if this section were in effect) which were paid or incurred by the employer (or any predecessor) during calendar year 1993.
(b) Qualified wages; qualified employee health insurance costs 
For purposes of this section
(1) Qualified wages 

(A) In general 
The term qualified wages means any wages paid or incurred by an employer for services performed by an employee while such employee is a qualified employee.
(B) Coordination with work opportunity credit 
The term qualified wages shall not include wages attributable to service rendered during the 1-year period beginning with the day the individual begins work for the employer if any portion of such wages is taken into account in determining the credit under section 51.
(2) Qualified employee health insurance costs 

(A) In general 
The term qualified employee health insurance costs means any amount paid or incurred by an employer for health insurance to the extent such amount is attributable to coverage provided to any employee while such employee is a qualified employee.
(B) Exception for amounts paid under salary reduction arrangements 
No amount paid or incurred for health insurance pursuant to a salary reduction arrangement shall be taken into account under subparagraph (A).
(3) Limitation 
The aggregate amount of qualified wages and qualified employee health insurance costs taken into account with respect to any employee for any taxable year (and for the base period under subsection (a)(2)) shall not exceed $20,000.
(c) Qualified employee 
For purposes of this section
(1) In general 
Except as otherwise provided in this subsection, the term qualified employee means, with respect to any period, any employee of an employer if
(A) the employee is an enrolled member of an Indian tribe or the spouse of an enrolled member of an Indian tribe,
(B) substantially all of the services performed during such period by such employee for such employer are performed within an Indian reservation, and
(C) the principal place of abode of such employee while performing such services is on or near the reservation in which the services are performed.
(2) Individuals receiving wages in excess of $30,000 not eligible 
An employee shall not be treated as a qualified employee for any taxable year of the employer if the total amount of the wages paid or incurred by such employer to such employee during such taxable year (whether or not for services within an Indian reservation) exceeds the amount determined at an annual rate of $30,000.
(3) Inflation adjustment 
The Secretary shall adjust the $30,000 amount under paragraph (2) for years beginning after 1994 at the same time and in the same manner as under section 415 (d), except that the base period taken into account for purposes of such adjustment shall be the calendar quarter beginning October 1, 1993.
(4) Employment must be trade or business employment 
An employee shall be treated as a qualified employee for any taxable year of the employer only if more than 50 percent of the wages paid or incurred by the employer to such employee during such taxable year are for services performed in a trade or business of the employer. Any determination as to whether the preceding sentence applies with respect to any employee for any taxable year shall be made without regard to subsection (e)(2).
(5) Certain employees not eligible 
The term qualified employee shall not include
(A) any individual described in subparagraph (A), (B), or (C) of section 51 (i)(1),
(B) any 5-percent owner (as defined in section 416 (i)(1)(B)), and
(C) any individual if the services performed by such individual for the employer involve the conduct of class I, II, or III gaming as defined in section 4 of the Indian Gaming Regulatory Act (25 U.S.C. 2703), or are performed in a building housing such gaming activity.
(6) Indian tribe defined 
The term Indian tribe means any Indian tribe, band, nation, pueblo, or other organized group or community, including any Alaska Native village, or regional or village corporation, as defined in, or established pursuant to, the Alaska Native Claims Settlement Act (43 U.S.C. 1601 et seq.) which is recognized as eligible for the special programs and services provided by the United States to Indians because of their status as Indians.
(7) Indian reservation defined 
The term Indian reservation has the meaning given such term by section 168 (j)(6).
(d) Early termination of employment by employer 

(1) In general 
If the employment of any employee is terminated by the taxpayer before the day 1 year after the day on which such employee began work for the employer
(A) no wages (or qualified employee health insurance costs) with respect to such employee shall be taken into account under subsection (a) for the taxable year in which such employment is terminated, and
(B) the tax under this chapter for the taxable year in which such employment is terminated shall be increased by the aggregate credits (if any) allowed under section 38 (a) for prior taxable years by reason of wages (or qualified employee health insurance costs) taken into account with respect to such employee.
(2) Carrybacks and carryovers adjusted 
In the case of any termination of employment to which paragraph (1) applies, the carrybacks and carryovers under section 39 shall be properly adjusted.
(3) Subsection not to apply in certain cases 

(A) In general 
Paragraph (1) shall not apply to
(i) a termination of employment of an employee who voluntarily leaves the employment of the taxpayer,
(ii) a termination of employment of an individual who before the close of the period referred to in paragraph (1) becomes disabled to perform the services of such employment unless such disability is removed before the close of such period and the taxpayer fails to offer reemployment to such individual, or
(iii) a termination of employment of an individual if it is determined under the applicable State unemployment compensation law that the termination was due to the misconduct of such individual.
(B) Changes in form of business 
For purposes of paragraph (1), the employment relationship between the taxpayer and an employee shall not be treated as terminated
(i) by a transaction to which section 381 (a) applies if the employee continues to be employed by the acquiring corporation, or
(ii) by reason of a mere change in the form of conducting the trade or business of the taxpayer if the employee continues to be employed in such trade or business and the taxpayer retains a substantial interest in such trade or business.
(4) Special rule 
Any increase in tax under paragraph (1) shall not be treated as a tax imposed by this chapter for purposes of
(A) determining the amount of any credit allowable under this chapter, and
(B) determining the amount of the tax imposed by section 55.
(e) Other definitions and special rules 
For purposes of this section
(1) Wages 
The term wages has the same meaning given to such term in section 51.
(2) Controlled groups 

(A) All employers treated as a single employer under section (a) or (b) of section 52 shall be treated as a single employer for purposes of this section.
(B) The credit (if any) determined under this section with respect to each such employer shall be its proportionate share of the wages and qualified employee health insurance costs giving rise to such credit.
(3) Certain other rules made applicable 
Rules similar to the rules of section 51 (k) and subsections (c), (d), and (e) of section 52 shall apply.
(4) Coordination with nonrevenue laws 
Any reference in this section to a provision not contained in this title shall be treated for purposes of this section as a reference to such provision as in effect on the date of the enactment of this paragraph.
(5) Special rule for short taxable years 
For any taxable year having less than 12 months, the amount determined under subsection (a)(2) shall be multiplied by a fraction, the numerator of which is the number of days in the taxable year and the denominator of which is 365.
(f) Termination 
This section shall not apply to taxable years beginning after December 31, 2007.

26 USC 45B - Credit for portion of employer social security taxes paid with respect to employee cash tips

(a) General rule 
For purposes of section 38, the employer social security credit determined under this section for the taxable year is an amount equal to the excess employer social security tax paid or incurred by the taxpayer during the taxable year.
(b) Excess employer social security tax 
For purposes of this section
(1) In general 
The term excess employer social security tax means any tax paid by an employer under section 3111 with respect to tips received by an employee during any month, to the extent such tips
(A) are deemed to have been paid by the employer to the employee pursuant to section 3121 (q) (without regard to whether such tips are reported under section 6053), and
(B) exceed the amount by which the wages (excluding tips) paid by the employer to the employee during such month are less than the total amount which would be payable (with respect to such employment) at the minimum wage rate applicable to such individual under section 6(a)(1) of the Fair Labor Standards Act of 1938 (as in effect on January 1, 2007, and determined without regard to section 3(m) of such Act).
(2) Only tips received for food or beverages taken into account 
In applying paragraph (1), there shall be taken into account only tips received from customers in connection with the providing, delivering, or serving of food or beverages for consumption if the tipping of employees delivering or serving food or beverages by customers is customary.
(c) Denial of double benefit 
No deduction shall be allowed under this chapter for any amount taken into account in determining the credit under this section.
(d) Election not to claim credit 
This section shall not apply to a taxpayer for any taxable year if such taxpayer elects to have this section not apply for such taxable year.

26 USC 45C - Clinical testing expenses for certain drugs for rare diseases or conditions

(a) General rule 
For purposes of section 38, the credit determined under this section for the taxable year is an amount equal to 50 percent of the qualified clinical testing expenses for the taxable year.
(b) Qualified clinical testing expenses 
For purposes of this section
(1) Qualified clinical testing expenses 

(A) In general 
Except as otherwise provided in this paragraph, the term qualified clinical testing expenses means the amounts which are paid or incurred by the taxpayer during the taxable year which would be described in subsection (b) of section 41 if such subsection were applied with the modifications set forth in subparagraph (B).
(B) Modifications 
For purposes of subparagraph (A), subsection (b) of section 41 shall be applied
(i) by substituting clinical testing for qualified research each place it appears in paragraphs (2) and (3) of such subsection, and
(ii) by substituting 100 percent for 65 percent in paragraph (3)(A) of such subsection.
(C) Exclusion for amounts funded by grants, etc. 
The term qualified clinical testing expenses shall not include any amount to the extent such amount is funded by any grant, contract, or otherwise by another person (or any governmental entity).
(D) Special rule 
For purposes of this paragraph, section 41 shall be deemed to remain in effect for periods after June 30, 1995, and before July 1, 1996, and periods after December 31, 2007.
(2) Clinical testing 

(A) In general 
The term clinical testing means any human clinical testing
(i) which is carried out under an exemption for a drug being tested for a rare disease or condition under section 505(i) of the Federal Food, Drug, and Cosmetic Act (or regulations issued under such section),
(ii) which occurs
(I) after the date such drug is designated under section 526 of such Act, and
(II) before the date on which an application with respect to such drug is approved under section 505(b) of such Act or, if the drug is a biological product, before the date on which a license for such drug is issued under section 351 of the Public Health Service Act;[1] and
(iii) which is conducted by or on behalf of the taxpayer to whom the designation under such section 526 applies.
(B) Testing must be related to use for rare disease or condition 
Human clinical testing shall be taken into account under subparagraph (A) only to the extent such testing is related to the use of a drug for the rare disease or condition for which it was designated under section 526 of the Federal Food, Drug, and Cosmetic Act.
(c) Coordination with credit for increasing research expenditures 

(1) In general 
Except as provided in paragraph (2), any qualified clinical testing expenses for a taxable year to which an election under this section applies shall not be taken into account for purposes of determining the credit allowable under section 41 for such taxable year.
(2) Expenses included in determining base period research expenses 
Any qualified clinical testing expenses for any taxable year which are qualified research expenses (within the meaning of section 41 (b)) shall be taken into account in determining base period research expenses for purposes of applying section 41 to subsequent taxable years.
(d) Definition and special rules 

(1) Rare disease or condition 
For purposes of this section, the term rare disease or condition means any disease or condition which
(A) affects less than 200,000 persons in the United States, or
(B) affects more than 200,000 persons in the United States but for which there is no reasonable expectation that the cost of developing and making available in the United States a drug for such disease or condition will be recovered from sales in the United States of such drug.

Determinations under the preceding sentence with respect to any drug shall be made on the basis of the facts and circumstances as of the date such drug is designated under section 526 of the Federal Food, Drug, and Cosmetic Act.

(2) Special limitations on foreign testing 

(A) In general 
No credit shall be allowed under this section with respect to any clinical testing conducted outside the United States unless
(i) such testing is conducted outside the United States because there is an insufficient testing population in the United States, and
(ii) such testing is conducted by a United States person or by any other person who is not related to the taxpayer to whom the designation under section 526 of the Federal Food, Drug, and Cosmetic Act applies.
(B) Special limitation for corporations to which section 936 applies 
No credit shall be allowed under this section with respect to any clinical testing conducted by a corporation to which an election under section 936 applies.
(3) Certain rules made applicable 
Rules similar to the rules of paragraphs (1) and (2) of section 41 (f) shall apply for purposes of this section.
(4) Election 
This section shall apply to any taxpayer for any taxable year only if such taxpayer elects (at such time and in such manner as the Secretary may by regulations prescribe) to have this section apply for such taxable year.
[1] So in original. The semicolon probably should be a comma.

26 USC 45D - New markets tax credit

(a) Allowance of credit 

(1) In general 
For purposes of section 38, in the case of a taxpayer who holds a qualified equity investment on a credit allowance date of such investment which occurs during the taxable year, the new markets tax credit determined under this section for such taxable year is an amount equal to the applicable percentage of the amount paid to the qualified community development entity for such investment at its original issue.
(2) Applicable percentage 
For purposes of paragraph (1), the applicable percentage is
(A) 5 percent with respect to the first 3 credit allowance dates, and
(B) 6 percent with respect to the remainder of the credit allowance dates.
(3) Credit allowance date 
For purposes of paragraph (1), the term credit allowance date means, with respect to any qualified equity investment
(A) the date on which such investment is initially made, and
(B) each of the 6 anniversary dates of such date thereafter.
(b) Qualified equity investment 
For purposes of this section
(1) In general 
The term qualified equity investment means any equity investment in a qualified community development entity if
(A) such investment is acquired by the taxpayer at its original issue (directly or through an underwriter) solely in exchange for cash,
(B) substantially all of such cash is used by the qualified community development entity to make qualified low-income community investments, and
(C) such investment is designated for purposes of this section by the qualified community development entity.

Such term shall not include any equity investment issued by a qualified community development entity more than 5 years after the date that such entity receives an allocation under subsection (f). Any allocation not used within such 5-year period may be reallocated by the Secretary under subsection (f).

(2) Limitation 
The maximum amount of equity investments issued by a qualified community development entity which may be designated under paragraph (1)(C) by such entity shall not exceed the portion of the limitation amount allocated under subsection (f) to such entity.
(3) Safe harbor for determining use of cash 
The requirement of paragraph (1)(B) shall be treated as met if at least 85 percent of the aggregate gross assets of the qualified community development entity are invested in qualified low-income community investments.
(4) Treatment of subsequent purchasers 
The term qualified equity investment includes any equity investment which would (but for paragraph (1)(A)) be a qualified equity investment in the hands of the taxpayer if such investment was a qualified equity investment in the hands of a prior holder.
(5) Redemptions 
A rule similar to the rule of section 1202 (c)(3) shall apply for purposes of this subsection.
(6) Equity investment 
The term equity investment means
(A) any stock (other than nonqualified preferred stock as defined in section 351 (g)(2)) in an entity which is a corporation, and
(B) any capital interest in an entity which is a partnership.
(c) Qualified community development entity 
For purposes of this section
(1) In general 
The term qualified community development entity means any domestic corporation or partnership if
(A) the primary mission of the entity is serving, or providing investment capital for, low-income communities or low-income persons,
(B) the entity maintains accountability to residents of low-income communities through their representation on any governing board of the entity or on any advisory board to the entity, and
(C) the entity is certified by the Secretary for purposes of this section as being a qualified community development entity.
(2) Special rules for certain organizations 
The requirements of paragraph (1) shall be treated as met by
(A) any specialized small business investment company (as defined in section 1044 (c)(3)), and
(B) any community development financial institution (as defined in section 103 of the Community Development Banking and Financial Institutions Act of 1994 (12 U.S.C. 4702)).
(d) Qualified low-income community investments 
For purposes of this section
(1) In general 
The term qualified low-income community investment means
(A) any capital or equity investment in, or loan to, any qualified active low-income community business,
(B) the purchase from another qualified community development entity of any loan made by such entity which is a qualified low-income community investment,
(C) financial counseling and other services specified in regulations prescribed by the Secretary to businesses located in, and residents of, low-income communities, and
(D) any equity investment in, or loan to, any qualified community development entity.
(2) Qualified active low-income community business 

(A) In general 
For purposes of paragraph (1), the term qualified active low-income community business means, with respect to any taxable year, any corporation (including a nonprofit">nonprofit corporation) or partnership if for such year
(i) at least 50 percent of the total gross income of such entity is derived from the active conduct of a qualified business within any low-income community,
(ii) a substantial portion of the use of the tangible property of such entity (whether owned or leased) is within any low-income community,
(iii) a substantial portion of the services performed for such entity by its employees are performed in any low-income community,
(iv) less than 5 percent of the average of the aggregate unadjusted bases of the property of such entity is attributable to collectibles (as defined in section 408 (m)(2)) other than collectibles that are held primarily for sale to customers in the ordinary course of such business, and
(v) less than 5 percent of the average of the aggregate unadjusted bases of the property of such entity is attributable to nonqualified financial property (as defined in section 1397C (e)).
(B) Proprietorship 
Such term shall include any business carried on by an individual as a proprietor if such business would meet the requirements of subparagraph (A) were it incorporated.
(C) Portions of business may be qualified active low-income community business 
The term qualified active low-income community business includes any trades or businesses which would qualify as a qualified active low-income community business if such trades or businesses were separately incorporated.
(3) Qualified business 
For purposes of this subsection, the term qualified business has the meaning given to such term by section 1397C (d); except that
(A) in lieu of applying paragraph (2)(B) thereof, the rental to others of real property located in any low-income community shall be treated as a qualified business if there are substantial improvements located on such property, and
(B) paragraph (3) thereof shall not apply.
(e) Low-income community 
For purposes of this section
(1) In general 
The term low-income community means any population census tract if
(A) the poverty rate for such tract is at least 20 percent, or
(B) 
(i) in the case of a tract not located within a metropolitan area, the median family income for such tract does not exceed 80 percent of statewide median family income, or
(ii) in the case of a tract located within a metropolitan area, the median family income for such tract does not exceed 80 percent of the greater of statewide median family income or the metropolitan area median family income.

Subparagraph (B) shall be applied using possessionwide median family income in the case of census tracts located within a possession of the United States.

(2) Targeted populations 
The Secretary shall prescribe regulations under which 1 or more targeted populations (within the meaning of section 103(20) of the Riegle Community Development and Regulatory Improvement Act of 1994 (12 U.S.C. 4702 (20))) may be treated as low-income communities. Such regulations shall include procedures for determining which entities are qualified active low-income community businesses with respect to such populations.
(3) Areas not within census tracts 
In the case of an area which is not tracted for population census tracts, the equivalent county divisions (as defined by the Bureau of the Census for purposes of defining poverty areas) shall be used for purposes of determining poverty rates and median family income.
(4) Tracts with low population 
A population census tract with a population of less than 2,000 shall be treated as a low-income community for purposes of this section if such tract
(A) is within an empowerment zone the designation of which is in effect under section 1391, and
(B) is contiguous to 1 or more low-income communities (determined without regard to this paragraph).
(5) Modification of income requirement for census tracts within high migration rural counties 

(A) In general 
In the case of a population census tract located within a high migration rural county, paragraph (1)(B)(i) shall be applied by substituting 85 percent for 80 percent.
(B) High migration rural county 
For purposes of this paragraph, the term high migration rural county means any county which, during the 20-year period ending with the year in which the most recent census was conducted, has a net out-migration of inhabitants from the county of at least 10 percent of the population of the county at the beginning of such period.
(f) National limitation on amount of investments designated 

(1) In general 
There is a new markets tax credit limitation for each calendar year. Such limitation is
(A) $1,000,000,000 for 2001,
(B) $1,500,000,000 for 2002 and 2003,
(C) $2,000,000,000 for 2004 and 2005, and
(D) $3,500,000,000 for 2006, 2007, and 2008.
(2) Allocation of limitation 
The limitation under paragraph (1) shall be allocated by the Secretary among qualified community development entities selected by the Secretary. In making allocations under the preceding sentence, the Secretary shall give priority to any entity
(A) with a record of having successfully provided capital or technical assistance to disadvantaged businesses or communities, or
(B) which intends to satisfy the requirement under subsection (b)(1)(B) by making qualified low-income community investments in 1 or more businesses in which persons unrelated to such entity (within the meaning of section 267 (b) or 707 (b)(1)) hold the majority equity interest.
(3) Carryover of unused limitation 
If the new markets tax credit limitation for any calendar year exceeds the aggregate amount allocated under paragraph (2) for such year, such limitation for the succeeding calendar year shall be increased by the amount of such excess. No amount may be carried under the preceding sentence to any calendar year after 2014.
(g) Recapture of credit in certain cases 

(1) In general 
If, at any time during the 7-year period beginning on the date of the original issue of a qualified equity investment in a qualified community development entity, there is a recapture event with respect to such investment, then the tax imposed by this chapter for the taxable year in which such event occurs shall be increased by the credit recapture amount.
(2) Credit recapture amount 
For purposes of paragraph (1), the credit recapture amount is an amount equal to the sum of
(A) the aggregate decrease in the credits allowed to the taxpayer under section 38 for all prior taxable years which would have resulted if no credit had been determined under this section with respect to such investment, plus
(B) interest at the underpayment rate established under section 6621 on the amount determined under subparagraph (A) for each prior taxable year for the period beginning on the due date for filing the return for the prior taxable year involved.

No deduction shall be allowed under this chapter for interest described in subparagraph (B).

(3) Recapture event 
For purposes of paragraph (1), there is a recapture event with respect to an equity investment in a qualified community development entity if
(A) such entity ceases to be a qualified community development entity,
(B) the proceeds of the investment cease to be used as required of subsection (b)(1)(B), or
(C) such investment is redeemed by such entity.
(4) Special rules 

(A) Tax benefit rule 
The tax for the taxable year shall be increased under paragraph (1) only with respect to credits allowed by reason of this section which were used to reduce tax liability. In the case of credits not so used to reduce tax liability, the carryforwards and carrybacks under section 39 shall be appropriately adjusted.
(B) No credits against tax 
Any increase in tax under this subsection shall not be treated as a tax imposed by this chapter for purposes of determining the amount of any credit under this chapter or for purposes of section 55.
(h) Basis reduction 
The basis of any qualified equity investment shall be reduced by the amount of any credit determined under this section with respect to such investment. This subsection shall not apply for purposes of sections 1202, 1400B, and 1400F.
(i) Regulations 
The Secretary shall prescribe such regulations as may be appropriate to carry out this section, including regulations
(1) which limit the credit for investments which are directly or indirectly subsidized by other Federal tax benefits (including the credit under section 42 and the exclusion from gross income under section 103),
(2) which prevent the abuse of the purposes of this section,
(3) which provide rules for determining whether the requirement of subsection (b)(1)(B) is treated as met,
(4) which impose appropriate reporting requirements,
(5) which apply the provisions of this section to newly formed entities, and
(6) which ensure that non-metropolitan counties receive a proportional allocation of qualified equity investments.

26 USC 45E - Small employer pension plan startup costs

(a) General rule 
For purposes of section 38, in the case of an eligible employer, the small employer pension plan startup cost credit determined under this section for any taxable year is an amount equal to 50 percent of the qualified startup costs paid or incurred by the taxpayer during the taxable year.
(b) Dollar limitation 
The amount of the credit determined under this section for any taxable year shall not exceed
(1) $500 for the first credit year and each of the 2 taxable years immediately following the first credit year, and
(2) zero for any other taxable year.
(c) Eligible employer 
For purposes of this section
(1) In general 
The term eligible employer has the meaning given such term by section 408 (p)(2)(C)(i).
(2) Requirement for new qualified employer plans 
Such term shall not include an employer if, during the 3-taxable year period immediately preceding the 1st taxable year for which the credit under this section is otherwise allowable for a qualified employer plan of the employer, the employer or any member of any controlled group including the employer (or any predecessor of either) established or maintained a qualified employer plan with respect to which contributions were made, or benefits were accrued, for substantially the same employees as are in the qualified employer plan.
(d) Other definitions 
For purposes of this section
(1) Qualified startup costs 

(A) In general 
The term qualified startup costs means any ordinary and necessary expenses of an eligible employer which are paid or incurred in connection with
(i) the establishment or administration of an eligible employer plan, or
(ii) the retirement-related education of employees with respect to such plan.
(B) Plan must have at least 1 participant 
Such term shall not include any expense in connection with a plan that does not have at least 1 employee eligible to participate who is not a highly compensated employee.
(2) Eligible employer plan 
The term eligible employer plan means a qualified employer plan within the meaning of section 4972 (d).
(3) First credit year 
The term first credit year means
(A) the taxable year which includes the date that the eligible employer plan to which such costs relate becomes effective, or
(B) at the election of the eligible employer, the taxable year preceding the taxable year referred to in subparagraph (A).
(e) Special rules 
For purposes of this section
(1) Aggregation rules 
All persons treated as a single employer under subsection (a) or (b) of section 52, or subsection (m) or (o) of section 414, shall be treated as one person. All eligible employer plans shall be treated as 1 eligible employer plan.
(2) Disallowance of deduction 
No deduction shall be allowed for that portion of the qualified startup costs paid or incurred for the taxable year which is equal to the credit determined under subsection (a).
(3) Election not to claim credit 
This section shall not apply to a taxpayer for any taxable year if such taxpayer elects to have this section not apply for such taxable year.

26 USC 45F - Employer-provided child care credit

(a) In general 
For purposes of section 38, the employer-provided child care credit determined under this section for the taxable year is an amount equal to the sum of
(1) 25 percent of the qualified child care expenditures, and
(2) 10 percent of the qualified child care resource and referral expenditures,

of the taxpayer for such taxable year.

(b) Dollar limitation 
The credit allowable under subsection (a) for any taxable year shall not exceed $150,000.
(c) Definitions 
For purposes of this section
(1) Qualified child care expenditure 

(A) In general 
The term qualified child care expenditure means any amount paid or incurred
(i) to acquire, construct, rehabilitate, or expand property
(I) which is to be used as part of a qualified child care facility of the taxpayer,
(II) with respect to which a deduction for depreciation (or amortization in lieu of depreciation) is allowable, and
(III) which does not constitute part of the principal residence (within the meaning of section 121) of the taxpayer or any employee of the taxpayer,
(ii) for the operating costs of a qualified child care facility of the taxpayer, including costs related to the training of employees, to scholarship programs, and to the providing of increased compensation to employees with higher levels of child care training, or
(iii) under a contract with a qualified child care facility to provide child care services to employees of the taxpayer.
(B) Fair market value 
The term qualified child care expenditures shall not include expenses in excess of the fair market value of such care.
(2) Qualified child care facility 

(A) In general 
The term qualified child care facility means a facility
(i) the principal use of which is to provide child care assistance, and
(ii) which meets the requirements of all applicable laws and regulations of the State or local government in which it is located, including the licensing of the facility as a child care facility.

Clause (i) shall not apply to a facility which is the principal residence (within the meaning of section 121) of the operator of the facility.

(B) Special rules with respect to a taxpayer 
A facility shall not be treated as a qualified child care facility with respect to a taxpayer unless
(i) enrollment in the facility is open to employees of the taxpayer during the taxable year,
(ii) if the facility is the principal trade or business of the taxpayer, at least 30 percent of the enrollees of such facility are dependents of employees of the taxpayer, and
(iii) the use of such facility (or the eligibility to use such facility) does not discriminate in favor of employees of the taxpayer who are highly compensated employees (within the meaning of section 414 (q)).
(3) Qualified child care resource and referral expenditure 

(A) In general 
The term qualified child care resource and referral expenditure means any amount paid or incurred under a contract to provide child care resource and referral services to an employee of the taxpayer.
(B) Nondiscrimination 
The services shall not be treated as qualified unless the provision of such services (or the eligibility to use such services) does not discriminate in favor of employees of the taxpayer who are highly compensated employees (within the meaning of section 414 (q)).
(d) Recapture of acquisition and construction credit 

(1) In general 
If, as of the close of any taxable year, there is a recapture event with respect to any qualified child care facility of the taxpayer, then the tax of the taxpayer under this chapter for such taxable year shall be increased by an amount equal to the product of
(A) the applicable recapture percentage, and
(B) the aggregate decrease in the credits allowed under section 38 for all prior taxable years which would have resulted if the qualified child care expenditures of the taxpayer described in subsection (c)(1)(A) with respect to such facility had been zero.
(2) Applicable recapture percentage 

(A) In general 
For purposes of this subsection, the applicable recapture percentage shall be determined from the following table: The applicable If the recapture event recapture occurs in: percentage is: Years 13 100 Year 4 85 Year 5 70 Year 6 55 Year 7 40 Year 8 25 Years 9 and 10 10 Years 11 and thereafter 0.
(B) Years 
For purposes of subparagraph (A), year 1 shall begin on the first day of the taxable year in which the qualified child care facility is placed in service by the taxpayer.
(3) Recapture event defined 
For purposes of this subsection, the term recapture event means
(A) Cessation of operation 
The cessation of the operation of the facility as a qualified child care facility.
(B) Change in ownership 

(i) In general Except as provided in clause (ii), the disposition of a taxpayers interest in a qualified child care facility with respect to which the credit described in subsection (a) was allowable.
(ii) Agreement to assume recapture liability Clause (i) shall not apply if the person acquiring such interest in the facility agrees in writing to assume the recapture liability of the person disposing of such interest in effect immediately before such disposition. In the event of such an assumption, the person acquiring the interest in the facility shall be treated as the taxpayer for purposes of assessing any recapture liability (computed as if there had been no change in ownership).
(4) Special rules 

(A) Tax benefit rule 
The tax for the taxable year shall be increased under paragraph (1) only with respect to credits allowed by reason of this section which were used to reduce tax liability. In the case of credits not so used to reduce tax liability, the carryforwards and carrybacks under section 39 shall be appropriately adjusted.
(B) No credits against tax 
Any increase in tax under this subsection shall not be treated as a tax imposed by this chapter for purposes of determining the amount of any credit under this chapter or for purposes of section 55.
(C) No recapture by reason of casualty loss 
The increase in tax under this subsection shall not apply to a cessation of operation of the facility as a qualified child care facility by reason of a casualty loss to the extent such loss is restored by reconstruction or replacement within a reasonable period established by the Secretary.
(e) Special rules 
For purposes of this section
(1) Aggregation rules 
All persons which are treated as a single employer under subsections (a) and (b) of section 52 shall be treated as a single taxpayer.
(2) Pass-thru in the case of estates and trusts 
Under regulations prescribed by the Secretary, rules similar to the rules of subsection (d) of section 52 shall apply.
(3) Allocation in the case of partnerships 
In the case of partnerships, the credit shall be allocated among partners under regulations prescribed by the Secretary.
(f) No double benefit 

(1) Reduction in basis 
For purposes of this subtitle
(A) In general 
If a credit is determined under this section with respect to any property by reason of expenditures described in subsection (c)(1)(A), the basis of such property shall be reduced by the amount of the credit so determined.
(B) Certain dispositions 
If, during any taxable year, there is a recapture amount determined with respect to any property the basis of which was reduced under subparagraph (A), the basis of such property (immediately before the event resulting in such recapture) shall be increased by an amount equal to such recapture amount. For purposes of the preceding sentence, the term recapture amount means any increase in tax (or adjustment in carrybacks or carryovers) determined under subsection (d).
(2) Other deductions and credits 
No deduction or credit shall be allowed under any other provision of this chapter with respect to the amount of the credit determined under this section.

26 USC 45G - Railroad track maintenance credit

(a) General rule 
For purposes of section 38, the railroad track maintenance credit determined under this section for the taxable year is an amount equal to 50 percent of the qualified railroad track maintenance expenditures paid or incurred by an eligible taxpayer during the taxable year.
(b) Limitation 

(1) In general 
The credit allowed under subsection (a) for any taxable year shall not exceed the product of
(A) $3,500, multiplied by
(B) the sum of
(i) the number of miles of railroad track owned or leased by the eligible taxpayer as of the close of the taxable year, and
(ii) the number of miles of railroad track assigned for purposes of this subsection to the eligible taxpayer by a Class II or Class III railroad which owns or leases such railroad track as of the close of the taxable year.
(2) Assignments 
With respect to any assignment of a mile of railroad track under paragraph (1)(B)(ii)
(A) such assignment may be made only once per taxable year of the Class II or Class III railroad and shall be treated as made as of the close of such taxable year,
(B) such mile may not be taken into account under this section by such railroad for such taxable year, and
(C) such assignment shall be taken into account for the taxable year of the assignee which includes the date that such assignment is treated as effective.
(c) Eligible taxpayer 
For purposes of this section, the term eligible taxpayer means
(1) any Class II or Class III railroad, and
(2) any person who transports property using the rail facilities of a Class II or Class III railroad or who furnishes railroad-related property or services to a Class II or Class III railroad, but only with respect to miles of railroad track assigned to such person by such Class II or Class III railroad for purposes of subsection (b).
(d) Qualified railroad track maintenance expenditures 
For purposes of this section, the term qualified railroad track maintenance expenditures means gross expenditures (whether or not otherwise chargeable to capital account) for maintaining railroad track (including roadbed, bridges, and related track structures) owned or leased as of January 1, 2005, by a Class II or Class III railroad (determined without regard to any consideration for such expenditures given by the Class II or Class III railroad which made the assignment of such track).
(e) Other definitions and special rules 

(1) Class II or Class III railroad 
For purposes of this section, the terms Class II railroad and Class III railroad have the respective meanings given such terms by the Surface Transportation Board.
(2) Controlled groups 
Rules similar to the rules of paragraph (1) of section 41 (f) shall apply for purposes of this section.
(3) Basis adjustment 
For purposes of this subtitle, if a credit is allowed under this section with respect to any railroad track, the basis of such track shall be reduced by the amount of the credit so allowed.
(f) Application of section 
This section shall apply to qualified railroad track maintenance expenditures paid or incurred during taxable years beginning after December 31, 2004, and before January 1, 2008.

26 USC 45H - Credit for production of low sulfur diesel fuel

(a) In general 
For purposes of section 38, the amount of the low sulfur diesel fuel production credit determined under this section with respect to any facility of a small business refiner is an amount equal to 5 cents for each gallon of low sulfur diesel fuel produced during the taxable year by such small business refiner at such facility.
(b) Maximum credit 

(1) In general 
The aggregate credit determined under subsection (a) for any taxable year with respect to any facility shall not exceed
(A) 25 percent of the qualified costs incurred by the small business refiner with respect to such facility, reduced by
(B) the aggregate credits determined under this section for all prior taxable years with respect to such facility.
(2) Reduced percentage 
In the case of a small business refiner with average daily domestic refinery runs for the 1-year period ending on December 31, 2002, in excess of 155,000 barrels, the number of percentage points described in paragraph (1) shall be reduced (not below zero) by the product of such number (before the application of this paragraph) and the ratio of such excess to 50,000 barrels.
(c) Definitions and special rule 
For purposes of this section
(1) Small business refiner 
The term small business refiner means, with respect to any taxable year, a refiner of crude oil
(A) with respect to which not more than 1,500 individuals are engaged in the refinery operations of the business on any day during such taxable year, and
(B) the average daily domestic refinery run or average retained production of which for all facilities of the taxpayer for the 1-year period ending on December 31, 2002, did not exceed 205,000 barrels.
(2) Qualified costs 
The term qualified costs means, with respect to any facility, those costs paid or incurred during the applicable period for compliance with the applicable EPA regulations with respect to such facility, including expenditures for the construction of new process operation units or the dismantling and reconstruction of existing process units to be used in the production of low sulfur diesel fuel, associated adjacent or offsite equipment (including tankage, catalyst, and power supply), engineering, construction period interest, and sitework.
(3) Applicable EPA regulations 
The term applicable EPA regulations means the Highway Diesel Fuel Sulfur Control Requirements of the Environmental Protection Agency.
(4) Applicable period 
The term applicable period means, with respect to any facility, the period beginning on January 1, 2003, and ending on the earlier of the date which is 1 year after the date on which the taxpayer must comply with the applicable EPA regulations with respect to such facility or December 31, 2009.
(5) Low sulfur diesel fuel 
The term low sulfur diesel fuel means diesel fuel with a sulfur content of 15 parts per million or less.
(d) Special rule for determination of refinery runs 
For purposes[1] this section and section 179B (b), in the calculation of average daily domestic refinery run or retained production, only refineries which on April 1, 2003, were refineries of the refiner or a related person (within the meaning of section 613A (d)(3)), shall be taken into account.
(e) Certification 

(1) Required 
No credit shall be allowed unless, not later than the date which is 30 months after the first day of the first taxable year in which the low sulfur diesel fuel production credit is determined with respect to a facility, the small business refiner obtains certification from the Secretary, after consultation with the Administrator of the Environmental Protection Agency, that the taxpayers qualified costs with respect to such facility will result in compliance with the applicable EPA regulations.
(2) Contents of application 
An application for certification shall include relevant information regarding unit capacities and operating characteristics sufficient for the Secretary, after consultation with the Administrator of the Environmental Protection Agency, to determine that such qualified costs are necessary for compliance with the applicable EPA regulations.
(3) Review period 
Any application shall be reviewed and notice of certification, if applicable, shall be made within 60 days of receipt of such application. In the event the Secretary does not notify the taxpayer of the results of such certification within such period, the taxpayer may presume the certification to be issued until so notified.
(4) Statute of limitations 
With respect to the credit allowed under this section
(A) the statutory period for the assessment of any deficiency attributable to such credit shall not expire before the end of the 3-year period ending on the date that the review period described in paragraph (3) ends with respect to the taxpayer, and
(B) such deficiency may be assessed before the expiration of such 3-year period notwithstanding the provisions of any other law or rule of law which would otherwise prevent such assessment.
(f) Cooperative organizations 

(1) Apportionment of credit 

(A) In general 
In the case of a cooperative organization described in section 1381 (a), any portion of the credit determined under subsection (a) for the taxable year may, at the election of the organization, be apportioned among patrons eligible to share in patronage dividends on the basis of the quantity or value of business done with or for such patrons for the taxable year.
(B) Form and effect of election 
An election under subparagraph (A) for any taxable year shall be made on a timely filed return for such year. Such election, once made, shall be irrevocable for such taxable year.
(2) Treatment of organizations and patrons 

(A) Organizations 
The amount of the credit not apportioned to patrons pursuant to paragraph (1) shall be included in the amount determined under subsection (a) for the taxable year of the organization.
(B) Patrons 
The amount of the credit apportioned to patrons pursuant to paragraph (1) shall be included in the amount determined under subsection (a) for the first taxable year of each patron ending on or after the last day of the payment period (as defined in section 1382 (d)) for the taxable year of the organization or, if earlier, for the taxable year of each patron ending on or after the date on which the patron receives notice from the cooperative of the apportionment.
(3) Special rule 
If the amount of a credit which has been apportioned to any patron under this subsection is decreased for any reason
(A) such amount shall not increase the tax imposed on such patron, and
(B) the tax imposed by this chapter on such organization shall be increased by such amount.

The increase under subparagraph (B) shall not be treated as tax imposed by this chapter for purposes of determining the amount of any credit under this chapter or for purposes of section 55.

(g) Election to not take credit 
No credit shall be determined under subsection (a) for the taxable year if the taxpayer elects not to have subsection (a) apply to such taxable year.
[1] So in original. Probably should be followed by “of”.

26 USC 45I - Credit for producing oil and gas from marginal wells

(a) General rule 
For purposes of section 38, the marginal well production credit for any taxable year is an amount equal to the product of
(1) the credit amount, and
(2) the qualified crude oil production and the qualified natural gas production which is attributable to the taxpayer.
(b) Credit amount 
For purposes of this section
(1) In general 
The credit amount is
(A) $3 per barrel of qualified crude oil production, and
(B) 50 cents per 1,000 cubic feet of qualified natural gas production.
(2) Reduction as oil and gas prices increase 

(A) In general 
The $3 and 50 cents amounts under paragraph (1) shall each be reduced (but not below zero) by an amount which bears the same ratio to such amount (determined without regard to this paragraph) as
(i) the excess (if any) of the applicable reference price over $15 ($1.67 for qualified natural gas production), bears to
(ii) $3 ($0.33 for qualified natural gas production).

The applicable reference price for a taxable year is the reference price of the calendar year preceding the calendar year in which the taxable year begins.

(B) Inflation adjustment 
In the case of any taxable year beginning in a calendar year after 2005, each of the dollar amounts contained in subparagraph (A) shall be increased to an amount equal to such dollar amount multiplied by the inflation adjustment factor for such calendar year (determined under section 43 (b)(3)(B) by substituting 2004 for 1990).
(C) Reference price 
For purposes of this paragraph, the term reference price means, with respect to any calendar year
(i) in the case of qualified crude oil production, the reference price determined under section 45K (d)(2)(C), and
(ii) in the case of qualified natural gas production, the Secretarys estimate of the annual average wellhead price per 1,000 cubic feet for all domestic natural gas.
(c) Qualified crude oil and natural gas production 
For purposes of this section
(1) In general 
The terms qualified crude oil production and qualified natural gas production mean domestic crude oil or natural gas which is produced from a qualified marginal well.
(2) Limitation on amount of production which may qualify 

(A) In general 
Crude oil or natural gas produced during any taxable year from any well shall not be treated as qualified crude oil production or qualified natural gas production to the extent production from the well during the taxable year exceeds 1,095 barrels or barrel-of-oil equivalents (as defined in section 45K (d)(5)).
(B) Proportionate reductions 

(i) Short taxable years In the case of a short taxable year, the limitations under this paragraph shall be proportionately reduced to reflect the ratio which the number of days in such taxable year bears to 365.
(ii) Wells not in production entire year In the case of a well which is not capable of production during each day of a taxable year, the limitations under this paragraph applicable to the well shall be proportionately reduced to reflect the ratio which the number of days of production bears to the total number of days in the taxable year.
(3) Definitions 

(A) Qualified marginal well 
The term qualified marginal well means a domestic well
(i) the production from which during the taxable year is treated as marginal production under section 613A (c)(6), or
(ii) which, during the taxable year
(I) has average daily production of not more than 25 barrel-of-oil equivalents (as so defined), and
(II) produces water at a rate not less than 95 percent of total well effluent.
(B) Crude oil, etc. 
The terms crude oil, natural gas, domestic, and barrel have the meanings given such terms by section 613A (e).
(d) Other rules 

(1) Production attributable to the taxpayer 
In the case of a qualified marginal well in which there is more than one owner of operating interests in the well and the crude oil or natural gas production exceeds the limitation under subsection (c)(2), qualifying crude oil production or qualifying natural gas production attributable to the taxpayer shall be determined on the basis of the ratio which taxpayers revenue interest in the production bears to the aggregate of the revenue interests of all operating interest owners in the production.
(2) Operating interest required 
Any credit under this section may be claimed only on production which is attributable to the holder of an operating interest.
(3) Production from nonconventional sources excluded 
In the case of production from a qualified marginal well which is eligible for the credit allowed under section 45K for the taxable year, no credit shall be allowable under this section unless the taxpayer elects not to claim the credit under section 45K with respect to the well.

26 USC 45J - Credit for production from advanced nuclear power facilities

(a) General rule 
For purposes of section 38, the advanced nuclear power facility production credit of any taxpayer for any taxable year is equal to the product of
(1) 1.8 cents, multiplied by
(2) the kilowatt hours of electricity
(A) produced by the taxpayer at an advanced nuclear power facility during the 8-year period beginning on the date the facility was originally placed in service, and
(B) sold by the taxpayer to an unrelated person during the taxable year.
(b) National limitation 

(1) In general 
The amount of credit which would (but for this subsection and subsection (c)) be allowed with respect to any facility for any taxable year shall not exceed the amount which bears the same ratio to such amount of credit as
(A) the national megawatt capacity limitation allocated to the facility, bears to
(B) the total megawatt nameplate capacity of such facility.
(2) Amount of national limitation 
The aggregate amount of national megawatt capacity limitation allocated by the Secretary under paragraph (3) shall not exceed 6,000 megawatts.
(3) Allocation of limitation 
The Secretary shall allocate the national megawatt capacity limitation in such manner as the Secretary may prescribe.
(4) Regulations 
Not later than 6 months after the date of the enactment of this section, the Secretary shall prescribe such regulations as may be necessary or appropriate to carry out the purposes of this subsection. Such regulations shall provide a certification process under which the Secretary, after consultation with the Secretary of Energy, shall approve and allocate the national megawatt capacity limitation.
(c) Other limitations 

(1) Annual limitation 
The amount of the credit allowable under subsection (a) (after the application of subsection (b)) for any taxable year with respect to any facility shall not exceed an amount which bears the same ratio to $125,000,000 as
(A) the national megawatt capacity limitation allocated under subsection (b) to the facility, bears to
(B) 1,000.
(2) Phaseout of credit 

(A) In general 
The amount of the credit determined under subsection (a) shall be reduced by an amount which bears the same ratio to the amount of the credit (determined without regard to this paragraph) as
(i) the amount by which the reference price (as defined in section 45 (e)(2)(C)) for the calendar year in which the sale occurs exceeds 8 cents, bears to
(ii) 3 cents.
(B) Phaseout adjustment based on inflation 
The 8 cent amount in subparagraph (A) shall be adjusted by multiplying such amount by the inflation adjustment factor (as defined in section 45 (e)(2)(B)) for the calendar year in which the sale occurs. If any amount as increased under the preceding sentence is not a multiple of 0.1 cent, such amount shall be rounded to the nearest multiple of 0.1 cent.
(d) Advanced nuclear power facility 
For purposes of this section
(1) In general 
The term advanced nuclear power facility means any advanced nuclear facility
(A) which is owned by the taxpayer and which uses nuclear energy to produce electricity, and
(B) which is placed in service after the date of the enactment of this paragraph and before January 1, 2021.
(2) Advanced nuclear facility 
For purposes of paragraph (1), the term advanced nuclear facility means any nuclear facility the reactor design for which is approved after December 31, 1993, by the Nuclear Regulatory Commission (and such design or a substantially similar design of comparable capacity was not approved on or before such date).
(e) Other rules to apply 
Rules similar to the rules of paragraphs (1), (3), (4), and (5) of section 45 (e) shall apply for purposes of this section.

26 USC 45K - Credit for producing fuel from a nonconventional source

(a) Allowance of credit 
For purposes of section 38, the nonconventional source production credit determined under this section for the taxable year is an amount equal to
(1) $3, multiplied by
(2) the barrel-of-oil equivalent of qualified fuels
(A) sold by the taxpayer to an unrelated person during the taxable year, and
(B) the production of which is attributable to the taxpayer.
(b) Limitations and adjustments 

(1) Phaseout of credit 
The amount of the credit allowable under subsection (a) shall be reduced by an amount which bears the same ratio to the amount of the credit (determined without regard to this paragraph) as
(A) the amount by which the reference price for the calendar year in which the sale occurs exceeds $23.50, bears to
(B) $6.
(2) Credit and phaseout adjustment based on inflation 
The $3 amount in subsection (a) and the $23.50 and $6 amounts in paragraph (1) shall each be adjusted by multiplying such amount by the inflation adjustment factor for the calendar year in which the sale occurs. In the case of gas from a tight formation, the $3 amount in subsection (a) shall not be adjusted.
(3) Credit reduced for grants, tax-exempt bonds, and subsidized energy financing 

(A) In general 
The amount of the credit allowable under subsection (a) with respect to any project for any taxable year (determined after the application of paragraphs (1) and (2)) shall be reduced by the amount which is the product of the amount so determined for such year and a fraction
(i) the numerator of which is the sum, for the taxable year and all prior taxable years, of
(I) grants provided by the United States, a State, or a political subdivision of a State for use in connection with the project,
(II) proceeds of any issue of State or local government obligations used to provide financing for the project the interest on which is exempt from tax under section 103, and
(III) the aggregate amount of subsidized energy financing (within the meaning of section 48 (a)(4)(C)) provided in connection with the project, and
(ii) the denominator of which is the aggregate amount of additions to the capital account for the project for the taxable year and all prior taxable years.
(B) Amounts determined at close of year 
The amounts under subparagraph (A) for any taxable year shall be determined as of the close of the taxable year.
(4) Credit reduced for energy credit 
The amount allowable as a credit under subsection (a) with respect to any project for any taxable year (determined after the application of paragraphs (1), (2), and (3)) shall be reduced by the excess of
(A) the aggregate amount allowed under section 38 for the taxable year or any prior taxable year by reason of the energy percentage with respect to property used in the project, over
(B) the aggregate amount recaptured with respect to the amount described in subparagraph (A)
(i) under section 49 (b) or 50 (a) for the taxable year or any prior taxable year, or
(ii) under this paragraph for any prior taxable year.

The amount recaptured under section 49 (b) or 50 (a) with respect to any property shall be appropriately reduced to take into account any reduction in the credit allowed by this section by reason of the preceding sentence.

(5) Credit reduced for enhanced oil recovery credit 
The amount allowable as a credit under subsection (a) with respect to any project for any taxable year (determined after application of paragraphs (1), (2), (3), and (4)) shall be reduced by the excess (if any) of
(A) the aggregate amount allowed under section 38 for the taxable year and any prior taxable year by reason of any enhanced oil recovery credit determined under section 43 with respect to such project, over
(B) the aggregate amount recaptured with respect to the amount described in subparagraph (A) under this paragraph for any prior taxable year.
(c) Definition of qualified fuels 
For purposes of this section
(1) In general 
The term qualified fuels means
(A) oil produced from shale and tar sands,
(B) gas produced from
(i) geopressured brine, Devonian shale, coal seams, or a tight formation, or
(ii) biomass, and
(C) liquid, gaseous, or solid synthetic fuels produced from coal (including lignite), including such fuels when used as feedstocks.
(2) Gas from geopressured brine, etc. 

(A) In general 
Except as provided in subparagraph (B), the determination of whether any gas is produced from geopressured brine, Devonian shale, coal seams, or a tight formation shall be made in accordance with section 503 of the Natural Gas Policy Act of 1978 (as in effect before the repeal of such section).
(B) Special rules for gas from tight formations 
The term gas produced from a tight formation shall only include gas from a tight formation
(i) which, as of April 20, 1977, was committed or dedicated to interstate commerce (as defined in section 2(18) of the Natural Gas Policy Act of 1978, as in effect on the date of the enactment of this clause), or
(ii) which is produced from a well drilled after such date of enactment.
(3) Biomass 
The term biomass means any organic material other than
(A) oil and natural gas (or any product thereof), and
(B) coal (including lignite) or any product thereof.
(d) Other definitions and special rules 
For purposes of this section
(1) Only production within the United States taken into account 
Sales shall be taken into account under this section only with respect to qualified fuels the production of which is within
(A) the United States (within the meaning of section 638 (1)), or
(B) a possession of the United States (within the meaning of section 638 (2)).
(2) Computation of inflation adjustment factor and reference price 

(A) In general 
The Secretary shall, not later than April 1 of each calendar year, determine and publish in the Federal Register the inflation adjustment factor and the reference price for the preceding calendar year in accordance with this paragraph.
(B) Inflation adjustment factor 
The term inflation adjustment factor means, with respect to a calendar year, a fraction the numerator of which is the GNP implicit price deflator for the calendar year and the denominator of which is the GNP implicit price deflator for calendar year 1979. The term GNP implicit price deflator means the first revision of the implicit price deflator for the gross national product as computed and published by the Department of Commerce.
(C) Reference price 
The term reference price means with respect to a calendar year the Secretarys estimate of the annual average wellhead price per barrel for all domestic crude oil the price of which is not subject to regulation by the United States.
(3) Production attributable to the taxpayer 
In the case of a property or facility in which more than 1 person has an interest, except to the extent provided in regulations prescribed by the Secretary, production from the property or facility (as the case may be) shall be allocated among such persons in proportion to their respective interests in the gross sales from such property or facility.
(4) Gas from geopressured brine, Devonian shale, coal seams, or a tight formation 
The amount of the credit allowable under subsection (a) shall be determined without regard to any production attributable to a property from which gas from Devonian shale, coal seams, geopressured brine, or a tight formation was produced in marketable quantities before January 1, 1980.
(5) Barrel-of-oil equivalent 
The term barrel-of-oil equivalent with respect to any fuel means that amount of such fuel which has a Btu content of 5.8 million; except that in the case of qualified fuels described in subparagraph (C) of subsection (c)(1), the Btu content shall be determined without regard to any material from a source not described in such subparagraph.
(6) Barrel defined 
The term barrel means 42 United States gallons.
(7) Related persons 
Persons shall be treated as related to each other if such persons would be treated as a single employer under the regulations prescribed under section 52 (b). In the case of a corporation which is a member of an affiliated group of corporations filing a consolidated return, such corporation shall be treated as selling qualified fuels to an unrelated person if such fuels are sold to such a person by another member of such group.
(8) Pass-thru in the case of estates and trusts 
Under regulations prescribed by the Secretary, rules similar to the rules of subsection (d) of section 52 shall apply.
(e) Application of section 
This section shall apply with respect to qualified fuels
(1) which are
(A) produced from a well drilled after December 31, 1979, and before January 1, 1993, or
(B) produced in a facility placed in service after December 31, 1979, and before January 1, 1993, and
(2) which are sold before January 1, 2003.
(f) Extension for certain facilities 

(1) In general 
In the case of a facility for producing qualified fuels described in subparagraph (B)(ii) or (C) of subsection (c)(1)
(A) for purposes of subsection (e)(1)(B), such facility shall be treated as being placed in service before January 1, 1993, if such facility is placed in service before July 1, 1998, pursuant to a binding written contract in effect before January 1, 1997, and
(B) if such facility is originally placed in service after December 31, 1992, paragraph (2) of subsection (e) shall be applied with respect to such facility by substituting January 1, 2008 for January 1, 2003.
(2) Special rule 
Paragraph (1) shall not apply to any facility which produces coke or coke gas unless the original use of the facility commences with the taxpayer.
(g) Extension for facilities producing coke or coke gas 
Notwithstanding subsection (e)
(1) In general 
In the case of a facility for producing coke or coke gas (other than from petroleum based products) which was placed in service before January 1, 1993, or after June 30, 1998, and before January 1, 2010, this section shall apply with respect to coke and coke gas produced in such facility and sold during the period
(A) beginning on the later of January 1, 2006, or the date that such facility is placed in service, and
(B) ending on the date which is 4 years after the date such period began.
(2) Special rules 
In determining the amount of credit allowable under this section solely by reason of this subsection
(A) Daily limit 
The amount of qualified fuels sold during any taxable year which may be taken into account by reason of this subsection with respect to any facility shall not exceed an average barrel-of-oil equivalent of 4,000 barrels per day. Days before the date the facility is placed in service shall not be taken into account in determining such average.
(B) Extension period to commence with unadjusted credit amount 
For purposes of applying subsection (b)(2) to the $3 amount in subsection (a), in the case of fuels sold after 2005, subsection (d)(2)(B) shall be applied by substituting 2004 for 1979.
(C) Denial of double benefit 
This subsection shall not apply to any facility producing qualified fuels for which a credit was allowed under this section for the taxable year or any preceding taxable year by reason of subsection (f).
(D) Nonapplication of phaseout 
Subsection (b)(1) shall not apply.

26 USC 45L - New energy efficient home credit

(a) Allowance of credit 

(1) In general 
For purposes of section 38, in the case of an eligible contractor, the new energy efficient home credit for the taxable year is the applicable amount for each qualified new energy efficient home which is
(A) constructed by the eligible contractor, and
(B) acquired by a person from such eligible contractor for use as a residence during the taxable year.
(2) Applicable amount 
For purposes of paragraph (1), the applicable amount is an amount equal to
(A) in the case of a dwelling unit described in paragraph (1) or (2) of subsection (c), $2,000, and
(B) in the case of a dwelling unit described in paragraph (3) of subsection (c), $1,000.
(b) Definitions 
For purposes of this section
(1) Eligible contractor 
The term eligible contractor means
(A) the person who constructed the qualified new energy efficient home, or
(B) in the case of a qualified new energy efficient home which is a manufactured home, the manufactured home producer of such home.
(2) Qualified new energy efficient home 
The term qualified new energy efficient home means a dwelling unit
(A) located in the United States,
(B) the construction of which is substantially completed after the date of the enactment of this section, and
(C) which meets the energy saving requirements of subsection (c).
(3) Construction 
The term construction includes substantial reconstruction and rehabilitation.
(4) Acquire 
The term acquire includes purchase.
(c) Energy saving requirements 
A dwelling unit meets the energy saving requirements of this subsection if such unit is
(1) certified
(A) to have a level of annual heating and cooling energy consumption which is at least 50 percent below the annual level of heating and cooling energy consumption of a comparable dwelling unit
(i) which is constructed in accordance with the standards of chapter 4 of the 2003 International Energy Conservation Code, as such Code (including supplements) is in effect on the date of the enactment of this section, and
(ii) for which the heating and cooling equipment efficiencies correspond to the minimum allowed under the regulations established by the Department of Energy pursuant to the National Appliance Energy Conservation Act of 1987 and in effect at the time of completion of construction, and
(B) to have building envelope component improvements account for at least 1/5 of such 50 percent,
(2) a manufactured home which conforms to Federal Manufactured Home Construction and Safety Standards (part 3280 of title 24, Code of Federal Regulations) and which meets the requirements of paragraph (1), or
(3) a manufactured home which conforms to Federal Manufactured Home Construction and Safety Standards (part 3280 of title 24, Code of Federal Regulations) and which
(A) meets the requirements of paragraph (1) applied by substituting 30 percent for 50 percent both places it appears therein and by substituting 1/3 for 1/5 in subparagraph (B) thereof, or
(B) meets the requirements established by the Administrator of the Environmental Protection Agency under the Energy Star Labeled Homes program.
(d) Certification 

(1) Method of certification 
A certification described in subsection (c) shall be made in accordance with guidance prescribed by the Secretary, after consultation with the Secretary of Energy. Such guidance shall specify procedures and methods for calculating energy and cost savings.
(2) Form 
Any certification described in subsection (c) shall be made in writing in a manner which specifies in readily verifiable fashion the energy efficient building envelope components and energy efficient heating or cooling equipment installed and their respective rated energy efficiency performance.
(e) Basis adjustment 
For purposes of this subtitle, if a credit is allowed under this section in connection with any expenditure for any property, the increase in the basis of such property which would (but for this subsection) result from such expenditure shall be reduced by the amount of the credit so determined.
(f) Coordination with investment credit 
For purposes of this section, expenditures taken into account under section 47 or 48 (a) shall not be taken into account under this section.
(g) Termination 
This section shall not apply to any qualified new energy efficient home acquired after December 31, 2008.

26 USC 45M - Energy efficient appliance credit

(a) General rule 

(1) In general 
For purposes of section 38, the energy efficient appliance credit determined under this section for any taxable year is an amount equal to the sum of the credit amounts determined under paragraph (2) for each type of qualified energy efficient appliance produced by the taxpayer during the calendar year ending with or within the taxable year.
(2) Credit amounts 
The credit amount determined for any type of qualified energy efficient appliance is
(A) the applicable amount determined under subsection (b) with respect to such type, multiplied by
(B) the eligible production for such type.
(b) Applicable amount 

(1) In general 
For purposes of subsection (a)
(A) Dishwashers 
The applicable amount is the energy savings amount in the case of a dishwasher which
(i) is manufactured in calendar year 2006 or 2007, and
(ii) meets the requirements of the Energy Star program which are in effect for dishwashers in 2007.
(B) Clothes washers 
The applicable amount is $100 in the case of a clothes washer which
(i) is manufactured in calendar year 2006 or 2007, and
(ii) meets the requirements of the Energy Star program which are in effect for clothes washers in 2007.
(C) Refrigerators 

(i) 15 percent savings The applicable amount is $75 in the case of a refrigerator which
(I) is manufactured in calendar year 2006, and
(II) consumes at least 15 percent but not more than 20 percent less kilowatt hours per year than the 2001 energy conservation standards.
(ii) 20 percent savings The applicable amount is $125 in the case of a refrigerator which
(I) is manufactured in calendar year 2006 or 2007, and
(II) consumes at least 20 percent but not more than 25 percent less kilowatt hours per year than the 2001 energy conservation standards.
(iii) 25 percent savings The applicable amount is $175 in the case of a refrigerator which
(I) is manufactured in calendar year 2006 or 2007, and
(II) consumes at least 25 percent less kilowatt hours per year than the 2001 energy conservation standards.
(2) Energy savings amount 
For purposes of paragraph (1)(A)
(A) In general 
The energy savings amount is the lesser of
(i) the product of
(I) $3, and
(II) 100 multiplied by the energy savings percentage, or
(ii) $100.
(B) Energy savings percentage 
For purposes of subparagraph (A), the energy savings percentage is the ratio of
(i) the EF required by the Energy Star program for dishwashers in 2007 minus the EF required by the Energy Star program for dishwashers in 2005, to
(ii) the EF required by the Energy Star program for dishwashers in 2007.
(c) Eligible production 

(1) In general 
Except as provided in paragraphs[1] (2), the eligible production in a calendar year with respect to each type of energy efficient appliance is the excess of
(A) the number of appliances of such type which are produced by the taxpayer in the United States during such calendar year, over
(B) the average number of appliances of such type which were produced by the taxpayer (or any predecessor) in the United States during the preceding 3-calendar year period.
(2) Special rule for refrigerators 
The eligible production in a calendar year with respect to each type of refrigerator described in subsection (b)(1)(C) is the excess of
(A) the number of appliances of such type which are produced by the taxpayer in the United States during such calendar year, over
(B) 110 percent of the average number of appliances of such type which were produced by the taxpayer (or any predecessor) in the United States during the preceding 3-calendar year period.
(d) Types of energy efficient appliance 
For purposes of this section, the types of energy efficient appliances are
(1) dishwashers described in subsection (b)(1)(A),
(2) clothes washers described in subsection (b)(1)(B),
(3) refrigerators described in subsection (b)(1)(C)(i),
(4) refrigerators described in subsection (b)(1)(C)(ii), and
(5) refrigerators described in subsection (b)(1)(C)(iii).
(e) Limitations 

(1) Aggregate credit amount allowed 
The aggregate amount of credit allowed under subsection (a) with respect to a taxpayer for any taxable year shall not exceed $75,000,000 reduced by the amount of the credit allowed under subsection (a) to the taxpayer (or any predecessor) for all prior taxable years.
(2) Amount allowed for 15 percent savings refrigerators 
In the case of refrigerators described in subsection (b)(1)(C)(i), the aggregate amount of the credit allowed under subsection (a) with respect to a taxpayer for any taxable year shall not exceed $20,000,000.
(3) Limitation based on gross receipts 
The credit allowed under subsection (a) with respect to a taxpayer for the taxable year shall not exceed an amount equal to 2 percent of the average annual gross receipts of the taxpayer for the 3 taxable years preceding the taxable year in which the credit is determined.
(4) Gross receipts 
For purposes of this subsection, the rules of paragraphs (2) and (3) of section 448 (c) shall apply.
(f) Definitions 
For purposes of this section
(1) Qualified energy efficient appliance 
The term qualified energy efficient appliance means
(A) any dishwasher described in subsection (b)(1)(A),
(B) any clothes washer described in subsection (b)(1)(B), and
(C) any refrigerator described in subsection (b)(1)(C).
(2) Dishwasher 
The term dishwasher means a residential dishwasher subject to the energy conservation standards established by the Department of Energy.
(3) Clothes washer 
The term clothes washer means a residential model clothes washer, including a residential style coin operated washer.
(4) Refrigerator 
The term refrigerator means a residential model automatic defrost refrigerator-freezer which has an internal volume of at least 16.5 cubic feet.
(5) EF 
The term EF means the energy factor established by the Department of Energy for compliance with the Federal energy conservation standards.
(6) Produced 
The term produced includes manufactured.
(7) 2001 energy conservation standard 
The term 2001 energy conservation standard means the energy conservation standards promulgated by the Department of Energy and effective July 1, 2001.
(g) Special rules 
For purposes of this section
(1) In general 
Rules similar to the rules of subsections (c), (d), and (e) of section 52 shall apply.
(2) Controlled group 

(A) In general 
All persons treated as a single employer under subsection (a) or (b) of section 52 or subsection (m) or (o) of section 414 shall be treated as a single producer.
(B) Inclusion of foreign corporations 
For purposes of subparagraph (A), in applying subsections (a) and (b) of section 52 to this section, section 1563 shall be applied without regard to subsection (b)(2)(C) thereof.
(3) Verification 
No amount shall be allowed as a credit under subsection (a) with respect to which the taxpayer has not submitted such information or certification as the Secretary, in consultation with the Secretary of Energy, determines necessary.
[1] So in original. Probably should be “paragraph”.

26 USC 45N - Mine rescue team training credit

(a) Amount of credit 
For purposes of section 38, the mine rescue team training credit determined under this section with respect to each qualified mine rescue team employee of an eligible employer for any taxable year is an amount equal to the lesser of
(1) 20 percent of the amount paid or incurred by the taxpayer during the taxable year with respect to the training program costs of such qualified mine rescue team employee (including wages of such employee while attending such program), or
(2) $10,000.
(b) Qualified mine rescue team employee 
For purposes of this section, the term qualified mine rescue team employee means with respect to any taxable year any full-time employee of the taxpayer who is
(1) a miner eligible for more than 6 months of such taxable year to serve as a mine rescue team member as a result of completing, at a minimum, an initial 20-hour course of instruction as prescribed by the Mine Safety and Health Administrations Office of Educational Policy and Development, or
(2) a miner eligible for more than 6 months of such taxable year to serve as a mine rescue team member by virtue of receiving at least 40 hours of refresher training in such instruction.
(c) Eligible employer 
For purposes of this section, the term eligible employer means any taxpayer which employs individuals as miners in underground mines in the United States.
(d) Wages 
For purposes of this section, the term wages has the meaning given to such term by subsection (b) of section 3306 (determined without regard to any dollar limitation contained in such section).
(e) Termination 
This section shall not apply to taxable years beginning after December 31, 2008.

Subpart E - Rules for Computing Investment Credit

26 USC 46 - Amount of credit

For purposes of section 38, the amount of the investment credit determined under this section for any taxable year shall be the sum of
(1) the rehabilitation credit,
(2) the energy credit[1]
(3) the qualifying advanced coal project credit, and
(4) the qualifying gasification project credit.
[1] So in original. Probably should be followed by a comma.

26 USC 47 - Rehabilitation credit

(a) General rule 
For purposes of section 46, the rehabilitation credit for any taxable year is the sum of
(1) 10 percent of the qualified rehabilitation expenditures with respect to any qualified rehabilitated building other than a certified historic structure, and
(2) 20 percent of the qualified rehabilitation expenditures with respect to any certified historic structure.
(b) When expenditures taken into account 

(1) In general 
Qualified rehabilitation expenditures with respect to any qualified rehabilitated building shall be taken into account for the taxable year in which such qualified rehabilitated building is placed in service.
(2) Coordination with subsection (d) 
The amount which would (but for this paragraph) be taken into account under paragraph (1) with respect to any qualified rehabilitated building shall be reduced (but not below zero) by any amount of qualified rehabilitation expenditures taken into account under subsection (d) by the taxpayer or a predecessor of the taxpayer (or, in the case of a sale and leaseback described in section 50 (a)(2)(C), by the lessee), to the extent any amount so taken into account has not been required to be recaptured under section 50 (a).
(c) Definitions 
For purposes of this section
(1) Qualified rehabilitated building 

(A) In general 
The term qualified rehabilitated building means any building (and its structural components) if
(i) such building has been substantially rehabilitated,
(ii) such building was placed in service before the beginning of the rehabilitation,
(iii) in the case of any building other than a certified historic structure, in the rehabilitation process
(I) 50 percent or more of the existing external walls of such building are retained in place as external walls,
(II) 75 percent or more of the existing external walls of such building are retained in place as internal or external walls, and
(III) 75 percent or more of the existing internal structural framework of such building is retained in place, and
(iv) depreciation (or amortization in lieu of depreciation) is allowable with respect to such building.
(B) Building must be first placed in service before 1936 
In the case of a building other than a certified historic structure, a building shall not be a qualified rehabilitated building unless the building was first placed in service before 1936.
(C) Substantially rehabilitated defined 

(i) In general For purposes of subparagraph (A)(i), a building shall be treated as having been substantially rehabilitated only if the qualified rehabilitation expenditures during the 24-month period selected by the taxpayer (at the time and in the manner prescribed by regulation) and ending with or within the taxable year exceed the greater of
(I) the adjusted basis of such building (and its structural components), or
(II) $5,000.

The adjusted basis of the building (and its structural components) shall be determined as of the beginning of the 1st day of such 24-month period, or of the holding period of the building, whichever is later. For purposes of the preceding sentence, the determination of the beginning of the holding period shall be made without regard to any reconstruction by the taxpayer in connection with the rehabilitation.

(ii) Special rule for phased rehabilitation In the case of any rehabilitation which may reasonably be expected to be completed in phases set forth in architectural plans and specifications completed before the rehabilitation begins, clause (i) shall be applied by substituting 60-month period for 24-month period.
(iii) Lessees The Secretary shall prescribe by regulation rules for applying this subparagraph to lessees.
(D) Reconstruction 
Rehabilitation includes reconstruction.
(2) Qualified rehabilitation expenditure defined 

(A) In general 
The term qualified rehabilitation expenditure means any amount properly chargeable to capital account
(i) for property for which depreciation is allowable under section 168 and which is
(I) nonresidential real property,
(II) residential rental property,
(III) real property which has a class life of more than 12.5 years, or
(IV) an addition or improvement to property described in subclause (I), (II), or (III), and
(ii) in connection with the rehabilitation of a qualified rehabilitated building.
(B) Certain expenditures not included 
The term qualified rehabilitation expenditure does not include
(i) Straight line depreciation must be used Any expenditure with respect to which the taxpayer does not use the straight line method over a recovery period determined under subsection (c) or (g) of section 168. The preceding sentence shall not apply to any expenditure to the extent the alternative depreciation system of section 168 (g) applies to such expenditure by reason of subparagraph (B) or (C) of section 168 (g)(1).
(ii) Cost of acquisition The cost of acquiring any building or interest therein.
(iii) Enlargements Any expenditure attributable to the enlargement of an existing building.
(iv) Certified historic structure, etc. Any expenditure attributable to the rehabilitation of a certified historic structure or a building in a registered historic district, unless the rehabilitation is a certified rehabilitation (within the meaning of subparagraph (C)). The preceding sentence shall not apply to a building in a registered historic district if
(I) such building was not a certified historic structure,
(II) the Secretary of the Interior certified to the Secretary that such building is not of historic significance to the district, and
(III) if the certification referred to in subclause (II) occurs after the beginning of the rehabilitation of such building, the taxpayer certifies to the Secretary that, at the beginning of such rehabilitation, he in good faith was not aware of the requirements of subclause (II).
(v) Tax-exempt use property
(I) In general Any expenditure in connection with the rehabilitation of a building which is allocable to the portion of such property which is (or may reasonably be expected to be) tax-exempt use property (within the meaning of section 168 (h)).
(II) Clause not to apply for purposes of paragraph (1)(C) This clause shall not apply for purposes of determining under paragraph (1)(C) whether a building has been substantially rehabilitated.
(vi) Expenditures of lessee Any expenditure of a lessee of a building if, on the date the rehabilitation is completed, the remaining term of the lease (determined without regard to any renewal periods) is less than the recovery period determined under section 168 (c).
(C) Certified rehabilitation 
For purposes of subparagraph (B), the term certified rehabilitation means any rehabilitation of a certified historic structure which the Secretary of the Interior has certified to the Secretary as being consistent with the historic character of such property or the district in which such property is located.
(D) Nonresidential real property; residential rental property; class life 
For purposes of subparagraph (A), the terms nonresidential real property, residential rental property, and class life have the respective meanings given such terms by section 168.
(3) Certified historic structure defined 

(A) In general 
The term certified historic structure means any building (and its structural components) which
(i) is listed in the National Register, or
(ii) is located in a registered historic district and is certified by the Secretary of the Interior to the Secretary as being of historic significance to the district.
(B) Registered historic district 
The term registered historic district means
(i) any district listed in the National Register, and
(ii) any district
(I) which is designated under a statute of the appropriate State or local government, if such statute is certified by the Secretary of the Interior to the Secretary as containing criteria which will substantially achieve the purpose of preserving and rehabilitating buildings of historic significance to the district, and
(II) which is certified by the Secretary of the Interior to the Secretary as meeting substantially all of the requirements for the listing of districts in the National Register.
(d) Progress expenditures 

(1) In general 
In the case of any building to which this subsection applies, except as provided in paragraph (3)
(A) if such building is self-rehabilitated property, any qualified rehabilitation expenditure with respect to such building shall be taken into account for the taxable year for which such expenditure is properly chargeable to capital account with respect to such building, and
(B) if such building is not self-rehabilitated property, any qualified rehabilitation expenditure with respect to such building shall be taken into account for the taxable year in which paid.
(2) Property to which subsection applies 

(A) In general 
This subsection shall apply to any building which is being rehabilitated by or for the taxpayer if
(i) the normal rehabilitation period for such building is 2 years or more, and
(ii) it is reasonable to expect that such building will be a qualified rehabilitated building in the hands of the taxpayer when it is placed in service.

Clauses (i) and (ii) shall be applied on the basis of facts known as of the close of the taxable year of the taxpayer in which the rehabilitation begins (or, if later, at the close of the first taxable year to which an election under this subsection applies).

(B) Normal rehabilitation period 
For purposes of subparagraph (A), the term normal rehabilitation period means the period reasonably expected to be required for the rehabilitation of the building
(i) beginning with the date on which physical work on the rehabilitation begins (or, if later, the first day of the first taxable year to which an election under this subsection applies), and
(ii) ending on the date on which it is expected that the property will be available for placing in service.
(3) Special rules for applying paragraph (1) 
For purposes of paragraph (1)
(A) Component parts, etc. 
Property which is to be a component part of, or is otherwise to be included in, any building to which this subsection applies shall be taken into account
(i) at a time not earlier than the time at which it becomes irrevocably devoted to use in the building, and
(ii) as if (at the time referred to in clause (i)) the taxpayer had expended an amount equal to that portion of the cost to the taxpayer of such component or other property which, for purposes of this subpart, is properly chargeable (during such taxable year) to capital account with respect to such building.
(B) Certain borrowing disregarded 
Any amount borrowed directly or indirectly by the taxpayer from the person rehabilitating the property for him shall not be treated as an amount expended for such rehabilitation.
(C) Limitation for buildings which are not self-rehabilitated 

(i) In general In the case of a building which is not self-rehabilitated, the amount taken into account under paragraph (1)(B) for any taxable year shall not exceed the amount which represents the portion of the overall cost to the taxpayer of the rehabilitation which is properly attributable to the portion of the rehabilitation which is completed during such taxable year.
(ii) Carryover of certain amounts In the case of a building which is not a self-rehabilitated building, if for the taxable year
(I) the amount which (but for clause (i)) would have been taken into account under paragraph (1)(B) exceeds the limitation of clause (i), then the amount of such excess shall be taken into account under paragraph (1)(B) for the succeeding taxable year, or
(II) the limitation of clause (i) exceeds the amount taken into account under paragraph (1)(B), then the amount of such excess shall increase the limitation of clause (i) for the succeeding taxable year.
(D) Determination of percentage of completion 
The determination under subparagraph (C)(i) of the portion of the overall cost to the taxpayer of the rehabilitation which is properly attributable to rehabilitation completed during any taxable year shall be made, under regulations prescribed by the Secretary, on the basis of engineering or architectural estimates or on the basis of cost accounting records. Unless the taxpayer establishes otherwise by clear and convincing evidence, the rehabilitation shall be deemed to be completed not more rapidly than ratably over the normal rehabilitation period.
(E) No progress expenditures for certain prior periods 
No qualified rehabilitation expenditures shall be taken into account under this subsection for any period before the first day of the first taxable year to which an election under this subsection applies.
(F) No progress expenditures for property for year it is placed in service, etc. 
In the case of any building, no qualified rehabilitation expenditures shall be taken into account under this subsection for the earlier of
(i) the taxable year in which the building is placed in service, or
(ii) the first taxable year for which recapture is required under section 50 (a)(2) with respect to such property,

or for any taxable year thereafter.

(4) Self-rehabilitated building 
For purposes of this subsection, the term self-rehabilitated building means any building if it is reasonable to believe that more than half of the qualified rehabilitation expenditures for such building will be made directly by the taxpayer.
(5) Election 
This subsection shall apply to any taxpayer only if such taxpayer has made an election under this paragraph. Such an election shall apply to the taxable year for which made and all subsequent taxable years. Such an election, once made, may be revoked only with the consent of the Secretary.

26 USC 48 - Energy credit

(a) Energy credit 

(1) In general 
For purposes of section 46, except as provided in paragraphs (1)(B) and (2)(B) of subsection (c), the energy credit for any taxable year is the energy percentage of the basis of each energy property placed in service during such taxable year.
(2) Energy percentage 

(A) In general 
The energy percentage is
(i) 30 percent in the case of
(I) qualified fuel cell property,
(II) energy property described in paragraph (3)(A)(i) but only with respect to periods ending before January 1, 2009, and
(III) energy property described in paragraph (3)(A)(ii), and
(ii) in the case of any energy property to which clause (i) does not apply, 10 percent.
(B) Coordination with rehabilitation credit 
The energy percentage shall not apply to that portion of the basis of any property which is attributable to qualified rehabilitation expenditures.
(3) Energy property 
For purposes of this subpart, the term energy property means any property
(A) which is
(i) equipment which uses solar energy to generate electricity, to heat or cool (or provide hot water for use in) a structure, or to provide solar process heat, excepting property used to generate energy for the purposes of heating a swimming pool,
(ii) equipment which uses solar energy to illuminate the inside of a structure using fiber-optic distributed sunlight but only with respect to periods ending before January 1, 2009,
(iii) equipment used to produce, distribute, or use energy derived from a geothermal deposit (within the meaning of section 613 (e)(2)), but only, in the case of electricity generated by geothermal power, up to (but not including) the electrical transmission stage, or
(iv) qualified fuel cell property or qualified microturbine property,
(B) 
(i) the construction, reconstruction, or erection of which is completed by the taxpayer, or
(ii) which is acquired by the taxpayer if the original use of such property commences with the taxpayer,
(C) with respect to which depreciation (or amortization in lieu of depreciation) is allowable, and
(D) which meets the performance and quality standards (if any) which
(i) have been prescribed by the Secretary by regulations (after consultation with the Secretary of Energy), and
(ii) are in effect at the time of the acquisition of the property.

The term energy property shall not include any property which is public utility property (as defined in section 46 (f)(5) as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990). Such term shall not include any property which is part of a facility the production from which is allowed as a credit under section 45 for the taxable year or any prior taxable year.

(4) Special rule for property financed by subsidized energy financing or industrial development bonds 

(A) Reduction of basis 
For purposes of applying the energy percentage to any property, if such property is financed in whole or in part by
(i) subsidized energy financing, or
(ii) the proceeds of a private activity bond (within the meaning of section 141) the interest on which is exempt from tax under section 103,

the amount taken into account as the basis of such property shall not exceed the amount which (but for this subparagraph) would be so taken into account multiplied by the fraction determined under subparagraph (B).

(B) Determination of fraction 
For purposes of subparagraph (A), the fraction determined under this subparagraph is 1 reduced by a fraction
(i) the numerator of which is that portion of the basis of the property which is allocable to such financing or proceeds, and
(ii) the denominator of which is the basis of the property.
(C) Subsidized energy financing 
For purposes of subparagraph (A), the term subsidized energy financing means financing provided under a Federal, State, or local program a principal purpose of which is to provide subsidized financing for projects designed to conserve or produce energy.
(b) Certain progress expenditure rules made applicable 
Rules similar to the rules of subsections (c)(4) and (d) of section 46 (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990) shall apply for purposes of subsection (a).
(c) Qualified fuel cell property; qualified microturbine property 
For purposes of this section
(1) Qualified fuel cell property 

(A) In general 
The term qualified fuel cell property means a fuel cell power plant which
(i) has a nameplate capacity of at least 0.5 kilowatt of electricity using an electrochemical process, and
(ii) has an electricity-only generation efficiency greater than 30 percent.
(B) Limitation 
In the case of qualified fuel cell property placed in service during the taxable year, the credit otherwise determined under subsection (a) for such year with respect to such property shall not exceed an amount equal to $500 for each 0.5 kilowatt of capacity of such property.
(C) Fuel cell power plant 
The term fuel cell power plant means an integrated system comprised of a fuel cell stack assembly and associated balance of plant components which converts a fuel into electricity using electrochemical means.
(D) Special rule 
The first sentence of the matter in subsection (a)(3) which follows subparagraph (D) thereof shall not apply to qualified fuel cell property which is used predominantly in the trade or business of the furnishing or sale of telephone service, telegraph service by means of domestic telegraph operations, or other telegraph services (other than international telegraph services).
(E) Termination 
The term qualified fuel cell property shall not include any property for any period after December 31, 2008.
(2) Qualified microturbine property 

(A) In general 
The term qualified microturbine property means a stationary microturbine power plant which
(i) has a nameplate capacity of less than 2,000 kilowatts, and
(ii) has an electricity-only generation efficiency of not less than 26 percent at International Standard Organization conditions.
(B) Limitation 
In the case of qualified microturbine property placed in service during the taxable year, the credit otherwise determined under subsection (a) for such year with respect to such property shall not exceed an amount equal[1] $200 for each kilowatt of capacity of such property.
(C) Stationary microturbine power plant 
The term stationary microturbine power plant means an integrated system comprised of a gas turbine engine, a combustor, a recuperator or regenerator, a generator or alternator, and associated balance of plant components which converts a fuel into electricity and thermal energy. Such term also includes all secondary components located between the existing infrastructure for fuel delivery and the existing infrastructure for power distribution, including equipment and controls for meeting relevant power standards, such as voltage, frequency, and power factors.
(D) Special rule 
The first sentence of the matter in subsection (a)(3) which follows subparagraph (D) thereof shall not apply to qualified microturbine property which is used predominantly in the trade or business of the furnishing or sale of telephone service, telegraph service by means of domestic telegraph operations, or other telegraph services (other than international telegraph services).
(E) Termination 
The term qualified microturbine property shall not include any property for any period after December 31, 2008.
[1] So in original. Probably should be followed by “to”.

26 USC 48A - Qualifying advanced coal project credit

(a) In general 
For purposes of section 46, the qualifying advanced coal project credit for any taxable year is an amount equal to
(1) 20 percent of the qualified investment for such taxable year in the case of projects described in subsection (d)(3)(B)(i), and
(2) 15 percent of the qualified investment for such taxable year in the case of projects described in subsection (d)(3)(B)(ii).
(b) Qualified investment 

(1) In general 
For purposes of subsection (a), the qualified investment for any taxable year is the basis of eligible property placed in service by the taxpayer during such taxable year which is part of a qualifying advanced coal project
(A) 
(i) the construction, reconstruction, or erection of which is completed by the taxpayer, or
(ii) which is acquired by the taxpayer if the original use of such property commences with the taxpayer, and
(B) with respect to which depreciation (or amortization in lieu of depreciation) is allowable.
(2) Special rule for certain subsidized property 
Rules similar to section 48 (a)(4) shall apply for purposes of this section.
(3) Certain qualified progress expenditures rules made applicable 
Rules similar to the rules of subsections (c)(4) and (d) of section 46 (as in effect on the day before the enactment of the Revenue Reconciliation Act of 1990) shall apply for purposes of this section.
(c) Definitions 
For purposes of this section
(1) Qualifying advanced coal project 
The term qualifying advanced coal project means a project which meets the requirements of subsection (e).
(2) Advanced coal-based generation technology 
The term advanced coal-based generation technology means a technology which meets the requirements of subsection (f).
(3) Eligible property 
The term eligible property means
(A) in the case of any qualifying advanced coal project using an integrated gasification combined cycle, any property which is a part of such project and is necessary for the gasification of coal, including any coal handling and gas separation equipment, and
(B) in the case of any other qualifying advanced coal project, any property which is a part of such project.
(4) Coal 
The term coal means anthracite, bituminous coal, subbituminous coal, lignite, and peat.
(5) Greenhouse gas capture capability 
The term greenhouse gas capture capability means an integrated gasification combined cycle technology facility capable of adding components which can capture, separate on a long-term basis, isolate, remove, and sequester greenhouse gases which result from the generation of electricity.
(6) Electric generation unit 
The term electric generation unit means any facility at least 50 percent of the total annual net output of which is electrical power, including an otherwise eligible facility which is used in an industrial application.
(7) Integrated gasification combined cycle 
The term integrated gasification combined cycle means an electric generation unit which produces electricity by converting coal to synthesis gas which is used to fuel a combined-cycle plant which produces electricity from both a combustion turbine (including a combustion turbine/fuel cell hybrid) and a steam turbine.
(d) Qualifying advanced coal project program 

(1) Establishment 
Not later than 180 days after the date of enactment of this section, the Secretary, in consultation with the Secretary of Energy, shall establish a qualifying advanced coal project program for the deployment of advanced coal-based generation technologies.
(2) Certification 

(A) Application period 
Each applicant for certification under this paragraph shall submit an application meeting the requirements of subparagraph (B). An applicant may only submit an application during the 3-year period beginning on the date the Secretary establishes the program under paragraph (1).
(B) Requirements for applications for certification 
An application under subparagraph (A) shall contain such information as the Secretary may require in order to make a determination to accept or reject an application for certification as meeting the requirements under subsection (e)(1). Any information contained in the application shall be protected as provided in section 552 (b)(4) of title 5, United States Code.
(C) Time to act upon applications for certification 
The Secretary shall issue a determination as to whether an applicant has met the requirements under subsection (e)(1) within 60 days following the date of submittal of the application for certification.
(D) Time to meet criteria for certification 
Each applicant for certification shall have 2 years from the date of acceptance by the Secretary of the application during which to provide to the Secretary evidence that the criteria set forth in subsection (e)(2) have been met.
(E) Period of issuance 
An applicant which receives a certification shall have 5 years from the date of issuance of the certification in order to place the project in service and if such project is not placed in service by that time period then the certification shall no longer be valid.
(3) Aggregate credits 

(A) In general 
The aggregate credits allowed under subsection (a) for projects certified by the Secretary under paragraph (2) may not exceed $1,300,000,000.
(B) Particular projects 
Of the dollar amount in subparagraph (A), the Secretary is authorized to certify
(i) $800,000,000 for integrated gasification combined cycle projects, and
(ii) $500,000,000 for projects which use other advanced coal-based generation technologies.
(4) Review and redistribution 

(A) Review 
Not later than 6 years after the date of enactment of this section, the Secretary shall review the credits allocated under this section as of the date which is 6 years after the date of enactment of this section.
(B) Redistribution 
The Secretary may reallocate credits available under clauses (i) and (ii) of paragraph (3)(B) if the Secretary determines that
(i) there is an insufficient quantity of qualifying applications for certification pending at the time of the review, or
(ii) any certification made pursuant to paragraph (2) has been revoked pursuant to paragraph (2)(D) because the project subject to the certification has been delayed as a result of third party opposition or litigation to the proposed project.
(C) Reallocation 
If the Secretary determines that credits under clause (i) or (ii) of paragraph (3)(B) are available for reallocation pursuant to the requirements set forth in paragraph (2), the Secretary is authorized to conduct an additional program for applications for certification.
(e) Qualifying advanced coal projects 

(1) Requirements 
For purposes of subsection (c)(1), a project shall be considered a qualifying advanced coal project that the Secretary may certify under subsection (d)(2) if the Secretary determines that, at a minimum
(A) the project uses an advanced coal-based generation technology
(i) to power a new electric generation unit; or
(ii) to retrofit or repower an existing electric generation unit (including an existing natural gas-fired combined cycle unit);
(B) the fuel input for the project, when completed, is at least 75 percent coal;
(C) the project, consisting of one or more electric generation units at one site, will have a total nameplate generating capacity of at least 400 megawatts;
(D) the applicant provides evidence that a majority of the output of the project is reasonably expected to be acquired or utilized;
(E) the applicant provides evidence of ownership or control of a site of sufficient size to allow the proposed project to be constructed and to operate on a long-term basis; and
(F) the project will be located in the United States.
(2) Requirements for certification 
For the purpose of subsection (d)(2)(D), a project shall be eligible for certification only if the Secretary determines that
(A) the applicant for certification has received all Federal and State environmental authorizations or reviews necessary to commence construction of the project; and
(B) the applicant for certification, except in the case of a retrofit or repower of an existing electric generation unit, has purchased or entered into a binding contract for the purchase of the main steam turbine or turbines for the project, except that such contract may be contingent upon receipt of a certification under subsection (d)(2).
(3) Priority for integrated gasification combined cycle projects 
In determining which qualifying advanced coal projects to certify under subsection (d)(2), the Secretary shall
(A) certify capacity, in accordance with the procedures set forth in subsection (d), in relatively equal amounts to
(i) projects using bituminous coal as a primary feedstock,
(ii) projects using subbituminous coal as a primary feedstock, and
(iii) projects using lignite as a primary feedstock, and
(B) give high priority to projects which include, as determined by the Secretary
(i) greenhouse gas capture capability,
(ii) increased by-product utilization, and
(iii) other benefits.
(f) Advanced coal-based generation technology 

(1) In general 
For the purpose of this section, an electric generation unit uses advanced coal-based generation technology if
(A) the unit
(i) uses integrated gasification combined cycle technology, or
(ii) except as provided in paragraph (3), has a design net heat rate of 8530 Btu/kWh (40 percent efficiency), and
(B) the unit is designed to meet the performance requirements in the following table: For purposes of the performance requirement specified for the removal of SO2 in the table contained in subparagraph (B), the SO2 removal design level in the case of a unit designed for the use of feedstock substantially all of which is subbituminous coal shall be 99 percent SO2 removal or the achievement of an emission level of 0.04 pounds or less of SO2 per million Btu, determined on a 30-day average.
(2) Design net heat rate 
For purposes of this subsection, design net heat rate with respect to an electric generation unit shall
(A) be measured in Btu per kilowatt hour (higher heating value),
(B) be based on the design annual heat input to the unit and the rated net electrical power, fuels, and chemicals output of the unit (determined without regard to the cogeneration of steam by the unit),
(C) be adjusted for the heat content of the design coal to be used by the unit
(i) if the heat content is less than 13,500 Btu per pound, but greater than 7,000 Btu per pound, according to the following formula: design net heat rate = unit net heat rate x [1[((13,500-design coal heat content, Btu per pound)/1,000)* 0.013]], and
(ii) if the heat content is less than or equal to 7,000 Btu per pound, according to the following formula: design net heat rate = unit net heat rate x [1[((13,500-design coal heat content, Btu per pound)/1,000)* 0.018]], and
(D) be corrected for the site reference conditions of
(i) elevation above sea level of 500 feet,
(ii) air pressure of 14.4 pounds per square inch absolute,
(iii) temperature, dry bulb of 63F,
(iv) temperature, wet bulb of 54F, and
(v) relative humidity of 55 percent.
(3) Existing units 
In the case of any electric generation unit in existence on the date of the enactment of this section, such unit uses advanced coal-based generation technology if, in lieu of the requirements under paragraph (1)(A)(ii), such unit achieves a minimum efficiency of 35 percent and an overall thermal design efficiency improvement, compared to the efficiency of the unit as operated, of not less than
(A) 7 percentage points for coal of more than 9,000 Btu,
(B) 6 percentage points for coal of 7,000 to 9,000 Btu, or
(C) 4 percentage points for coal of less than 7,000 Btu.
(g) Applicability 
No use of technology (or level of emission reduction solely by reason of the use of the technology), and no achievement of any emission reduction by the demonstration of any technology or performance level, by or at one or more facilities with respect to which a credit is allowed under this section, shall be considered to indicate that the technology or performance level is
(1) adequately demonstrated for purposes of section 111 of the Clean Air Act (42 U.S.C. 7411);
(2) achievable for purposes of section 169 of that Act (42 U.S.C. 7479); or
(3) achievable in practice for purposes of section 171 of such Act (42 U.S.C. 7501).

26 USC 48B - Qualifying gasification project credit

(a) In general 
For purposes of section 46, the qualifying gasification project credit for any taxable year is an amount equal to 20 percent of the qualified investment for such taxable year.
(b) Qualified investment 

(1) In general 
For purposes of subsection (a), the qualified investment for any taxable year is the basis of eligible property placed in service by the taxpayer during such taxable year which is part of a qualifying gasification project
(A) 
(i) the construction, reconstruction, or erection of which is completed by the taxpayer, or
(ii) which is acquired by the taxpayer if the original use of such property commences with the taxpayer, and
(B) with respect to which depreciation (or amortization in lieu of depreciation) is allowable.
(2) Special rule for certain subsidized property 
Rules similar to section 48 (a)(4) shall apply for purposes of this section.
(3) Certain qualified progress expenditures rules made applicable 
Rules similar to the rules of subsections (c)(4) and (d) of section 46 (as in effect on the day before the enactment of the Revenue Reconciliation Act of 1990) shall apply for purposes of this section.
(c) Definitions 
For purposes of this section
(1) Qualifying gasification project 
The term qualifying gasification project means any project which
(A) employs gasification technology,
(B) will be carried out by an eligible entity, and
(C) any portion of the qualified investment of which is certified under the qualifying gasification program as eligible for credit under this section in an amount (not to exceed $650,000,000) determined by the Secretary.
(2) Gasification technology 
The term gasification technology means any process which converts a solid or liquid product from coal, petroleum residue, biomass, or other materials which are recovered for their energy or feedstock value into a synthesis gas composed primarily of carbon monoxide and hydrogen for direct use or subsequent chemical or physical conversion.
(3) Eligible property 
The term eligible property means any property which is a part of a qualifying gasification project and is necessary for the gasification technology of such project.
(4) Biomass 

(A) In general 
The term biomass means any
(i) agricultural or plant waste,
(ii) byproduct of wood or paper mill operations, including lignin in spent pulping liquors, and
(iii) other products of forestry maintenance.
(B) Exclusion 
The term biomass does not include paper which is commonly recycled.
(5) Carbon capture capability 
The term carbon capture capability means a gasification plant design which is determined by the Secretary to reflect reasonable consideration for, and be capable of, accommodating the equipment likely to be necessary to capture carbon dioxide from the gaseous stream, for later use or sequestration, which would otherwise be emitted in the flue gas from a project which uses a nonrenewable fuel.
(6) Coal 
The term coal means anthracite, bituminous coal, subbituminous coal, lignite, and peat.
(7) Eligible entity 
The term eligible entity means any person whose application for certification is principally intended for use in a domestic project which employs domestic gasification applications related to
(A) chemicals,
(B) fertilizers,
(C) glass,
(D) steel,
(E) petroleum residues,
(F) forest products, and
(G) agriculture, including feedlots and dairy operations.
(8) Petroleum residue 
The term petroleum residue means the carbonized product of high-boiling hydrocarbon fractions obtained in petroleum processing.
(d) Qualifying gasification project program 

(1) In general 
Not later than 180 days after the date of the enactment of this section, the Secretary, in consultation with the Secretary of Energy, shall establish a qualifying gasification project program to consider and award certifications for qualified investment eligible for credits under this section to qualifying gasification project sponsors under this section. The total amounts of credit that may be allocated under the program shall not exceed $350,000,000 under rules similar to the rules of section 48A (d)(4).
(2) Period of issuance 
A certificate of eligibility under paragraph (1) may be issued only during the 10-fiscal year period beginning on October 1, 2005.
(3) Selection criteria 
The Secretary shall not make a competitive certification award for qualified investment for credit eligibility under this section unless the recipient has documented to the satisfaction of the Secretary that
(A) the award recipient is financially viable without the receipt of additional Federal funding associated with the proposed project,
(B) the recipient will provide sufficient information to the Secretary for the Secretary to ensure that the qualified investment is spent efficiently and effectively,
(C) a market exists for the products of the proposed project as evidenced by contracts or written statements of intent from potential customers,
(D) the fuels identified with respect to the gasification technology for such project will comprise at least 90 percent of the fuels required by the project for the production of chemical feedstocks, liquid transportation fuels, or coproduction of electricity,
(E) the award recipients project team is competent in the construction and operation of the gasification technology proposed, with preference given to those recipients with experience which demonstrates successful and reliable operations of the technology on domestic fuels so identified, and
(F) the award recipient has met other criteria established and published by the Secretary.
(e) Denial of double benefit 
A credit shall not be allowed under this section for any qualified investment for which a credit is allowed under section 48A.

26 USC 49 - At-risk rules

(a) General rule 

(1) Certain nonrecourse financing excluded from credit base 

(A) Limitation 
The credit base of any property to which this paragraph applies shall be reduced by the nonqualified nonrecourse financing with respect to such credit base (as of the close of the taxable year in which placed in service).
(B) Property to which paragraph applies 
This paragraph applies to any property which
(i) is placed in service during the taxable year by a taxpayer described in section 465 (a)(1), and
(ii) is used in connection with an activity with respect to which any loss is subject to limitation under section 465.
(C) Credit base defined 
For purposes of this paragraph, the term credit base means
(i) the portion of the basis of any qualified rehabilitated building attributable to qualified rehabilitation expenditures,
(ii) the basis of any energy property,
(iii) the basis of any property which is part of a qualifying advanced coal project under section 48A, and
(iv) the basis of any property which is part of a qualifying gasification project under section 48B.
(D) Nonqualified nonrecourse financing 

(i) In general For purposes of this paragraph and paragraph (2), the term nonqualified nonrecourse financing means any nonrecourse financing which is not qualified commercial financing.
(ii) Qualified commercial financing For purposes of this paragraph, the term qualified commercial financing means any financing with respect to any property if
(I) such property is acquired by the taxpayer from a person who is not a related person,
(II) the amount of the nonrecourse financing with respect to such property does not exceed 80 percent of the credit base of such property, and
(III) such financing is borrowed from a qualified person or represents a loan from any Federal, State, or local government or instrumentality thereof, or is guaranteed by any Federal, State, or local government.

Such term shall not include any convertible debt.

(iii) Nonrecourse financing For purposes of this subparagraph, the term nonrecourse financing includes
(I) any amount with respect to which the taxpayer is protected against loss through guarantees, stop-loss agreements, or other similar arrangements, and
(II) except to the extent provided in regulations, any amount borrowed from a person who has an interest (other than as a creditor) in the activity in which the property is used or from a related person to a person (other than the taxpayer) having such an interest. In the case of amounts borrowed by a corporation from a shareholder, subclause (II) shall not apply to an interest as a share-holder.[1]
(iv) Qualified person For purposes of this paragraph, the term qualified person means any person which is actively and regularly engaged in the business of lending money and which is not
(I) a related person with respect to the taxpayer,
(II) a person from which the taxpayer acquired the property (or a related person to such person), or
(III) a person who receives a fee with respect to the taxpayers investment in the property (or a related person to such person).
(v) Related person For purposes of this subparagraph, the term related person has the meaning given such term by section 465 (b)(3)(C). Except as otherwise provided in regulations prescribed by the Secretary, the determination of whether a person is a related person shall be made as of the close of the taxable year in which the property is placed in service.
(E) Application to partnerships and S corporations 
For purposes of this paragraph and paragraph (2)
(i) In general Except as otherwise provided in this subparagraph, in the case of any partnership or S corporation, the determination of whether a partners or shareholders allocable share of any financing is nonqualified nonrecourse financing shall be made at the partner or shareholder level.
(ii) Special rule for certain recourse financing of S corporation A shareholder of an S corporation shall be treated as liable for his allocable share of any financing provided by a qualified person to such corporation if
(I) such financing is recourse financing (determined at the corporate level), and
(II) such financing is provided with respect to qualified business property of such corporation.
(iii) Qualified business property For purposes of clause (ii), the term qualified business property means any property if
(I) such property is used by the corporation in the active conduct of a trade or business,
(II) during the entire 12-month period ending on the last day of the taxable year, such corporation had at least 3 full-time employees who were not owner-employees (as defined in section 465 (c)(7)(E)(i)) and substantially all the services of whom were services directly related to such trade or business, and
(III) during the entire 12-month period ending on the last day of such taxable year, such corporation had at least 1 full-time employee substantially all of the services of whom were in the active management of the trade or business.
(iv) Determination of allocable share The determination of any partners or shareholders allocable share of any financing shall be made in the same manner as the credit allowable by section 38 with respect to such property.
(F) Special rules for energy property 
Rules similar to the rules of subparagraph (F) of section 46 (c)(8) (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990) shall apply for purposes of this paragraph.
(2) Subsequent decreases in nonqualified nonrecourse financing with respect to the property 

(A) In general 
If, at the close of a taxable year following the taxable year in which the property was placed in service, there is a net decrease in the amount of nonqualified nonrecourse financing with respect to such property, such net decrease shall be taken into account as an increase in the credit base for such property in accordance with subparagraph (C).
(B) Certain transactions not taken into account 
For purposes of this paragraph, nonqualified nonrecourse financing shall not be treated as decreased through the surrender or other use of property financed by nonqualified nonrecourse financing.
(C) Manner in which taken into account 

(i) Credit determined by reference to taxable year property placed in service For purposes of determining the amount of credit allowable under section 38 and the amount of credit subject to the early disposition or cessation rules under section 50 (a), any increase in a taxpayers credit base for any property by reason of this paragraph shall be taken into account as if it were property placed in service by the taxpayer in the taxable year in which the property referred to in subparagraph (A) was first placed in service.
(ii) Credit allowed for year of decrease in nonqualified nonrecourse financing Any credit allowable under this subpart for any increase in qualified investment by reason of this paragraph shall be treated as earned during the taxable year of the decrease in the amount of nonqualified nonrecourse financing.
(b) Increases in nonqualified nonrecourse financing 

(1) In general 
If, as of the close of the taxable year, there is a net increase with respect to the taxpayer in the amount of nonqualified nonrecourse financing (within the meaning of subsection (a)(1)) with respect to any property to which subsection (a)(1) applied, then the tax under this chapter for such taxable year shall be increased by an amount equal to the aggregate decrease in credits allowed under section 38 for all prior taxable years which would have resulted from reducing the credit base (as defined in subsection (a)(1)(C)) taken into account with respect to such property by the amount of such net increase. For purposes of determining the amount of credit subject to the early disposition or cessation rules of section 50 (a), the net increase in the amount of the nonqualified nonrecourse financing with respect to the property shall be treated as reducing the propertys credit base in the year in which the property was first placed in service.
(2) Transfers of debt more than 1 year after initial borrowing not treated as increasing nonqualified nonrecourse financing 
For purposes of paragraph (1), the amount of nonqualified nonrecourse financing (within the meaning of subsection (a)(1)(D)) with respect to the taxpayer shall not be treated as increased by reason of a transfer of (or agreement to transfer) any evidence of any indebtedness if such transfer occurs (or such agreement is entered into) more than 1 year after the date such indebtedness was incurred.
(3) Special rules for certain energy property 
Rules similar to the rules of section 47 (d)(3) (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990) shall apply for purposes of this subsection.
(4) Special rule 
Any increase in tax under paragraph (1) shall not be treated as tax imposed by this chapter for purposes of determining the amount of any credit allowable under this chapter.
[1] So in original. Probably should not be hyphenated.

26 USC 50 - Other special rules

(a) Recapture in case of dispositions, etc. 
Under regulations prescribed by the Secretary
(1) Early disposition, etc. 

(A) General rule 
If, during any taxable year, investment credit property is disposed of, or otherwise ceases to be investment credit property with respect to the taxpayer, before the close of the recapture period, then the tax under this chapter for such taxable year shall be increased by the recapture percentage of the aggregate decrease in the credits allowed under section 38 for all prior taxable years which would have resulted solely from reducing to zero any credit determined under this subpart with respect to such property.
(B) Recapture percentage 
For purposes of subparagraph (A), the recapture percentage shall be determined in accordance with the following table:
(2) Property ceases to qualify for progress expenditures 

(A) In general 
If during any taxable year any building to which section 47 (d) applied ceases (by reason of sale or other disposition, cancellation or abandonment of contract, or otherwise) to be, with respect to the taxpayer, property which, when placed in service, will be a qualified rehabilitated building, then the tax under this chapter for such taxable year shall be increased by an amount equal to the aggregate decrease in the credits allowed under section 38 for all prior taxable years which would have resulted solely from reducing to zero the credit determined under this subpart with respect to such building.
(B) Certain excess credit recaptured 
Any amount which would have been applied as a reduction under paragraph (2) of section 47 (b) but for the fact that a reduction under such paragraph cannot reduce the amount taken into account under section 47 (b)(1) below zero shall be treated as an amount required to be recaptured under subparagraph (A) for the taxable year during which the building is placed in service.
(C) Certain sales and leasebacks 
Under regulations prescribed by the Secretary, a sale by, and leaseback to, a taxpayer who, when the property is placed in service, will be a lessee to whom the rules referred to in subsection (d)(5) apply shall not be treated as a cessation described in subparagraph (A) to the extent that the amount which will be passed through to the lessee under such rules with respect to such property is not less than the qualified rehabilitation expenditures properly taken into account by the lessee under section 47 (d) with respect to such property.
(D) Coordination with paragraph (1) 
If, after property is placed in service, there is a disposition or other cessation described in paragraph (1), then paragraph (1) shall be applied as if any credit which was allowable by reason of section 47 (d) and which has not been required to be recaptured before such disposition, cessation, or change in use were allowable for the taxable year the property was placed in service.
(E) Special rules 
Rules similar to the rules of this paragraph shall apply in cases where qualified progress expenditures were taken into account under the rules referred to in section 48 (b).
(3) Carrybacks and carryovers adjusted 
In the case of any cessation described in paragraph (1) or (2), the carrybacks and carryovers under section 39 shall be adjusted by reason of such cessation.
(4) Subsection not to apply in certain cases 
Paragraphs (1) and (2) shall not apply to
(A) a transfer by reason of death, or
(B) a transaction to which section 381 (a) applies.

For purposes of this subsection, property shall not be treated as ceasing to be investment credit property with respect to the taxpayer by reason of a mere change in the form of conducting the trade or business so long as the property is retained in such trade or business as investment credit property and the taxpayer retains a substantial interest in such trade or business.

(5) Definitions and special rules 

(A) Investment credit property 
For purposes of this subsection, the term investment credit property means any property eligible for a credit determined under this subpart.
(B) Transfer between spouses or incident to divorce 
In the case of any transfer described in subsection (a) of section 1041
(i) the foregoing provisions of this subsection shall not apply, and
(ii) the same tax treatment under this subsection with respect to the transferred property shall apply to the transferee as would have applied to the transferor.
(C) Special rule 
Any increase in tax under paragraph (1) or (2) shall not be treated as tax imposed by this chapter for purposes of determining the amount of any credit allowable under this chapter.
(b) Certain property not eligible 
No credit shall be determined under this subpart with respect to
(1) Property used outside United States 

(A) In general 
Except as provided in subparagraph (B), no credit shall be determined under this subpart with respect to any property which is used predominantly outside the United States.
(B) Exceptions 
Subparagraph (A) shall not apply to any property described in section 168 (g)(4).
(2) Property used for lodging 
No credit shall be determined under this subpart with respect to any property which is used predominantly to furnish lodging or in connection with the furnishing of lodging. The preceding sentence shall not apply to
(A) nonlodging commercial facilities which are available to persons not using the lodging facilities on the same basis as they are available to persons using the lodging facilities.[1]
(B) property used by a hotel or motel in connection with the trade or business of furnishing lodging where the predominant portion of the accommodations is used by transients;
(C) a certified historic structure to the extent of that portion of the basis which is attributable to qualified rehabilitation expenditures; and
(D) any energy property.
(3) Property used by certain tax-exempt organization 
No credit shall be determined under this subpart with respect to any property used by an organization (other than a cooperative described in section 521) which is exempt from the tax imposed by this chapter unless such property is used predominantly in an unrelated trade or business the income of which is subject to tax under section 511. If the property is debt-financed property (as defined in section 514 (b)), the amount taken into account for purposes of determining the amount of the credit under this subpart with respect to such property shall be that percentage of the amount (which but for this paragraph would be so taken into account) which is the same percentage as is used under section 514 (a), for the year the property is placed in service, in computing the amount of gross income to be taken into account during such taxable year with respect to such property. If any qualified rehabilitated building is used by the tax-exempt organization pursuant to a lease, this paragraph shall not apply for purposes of determining the amount of the rehabilitation credit.
(4) Property used by governmental units or foreign persons or entities 

(A) In general 
No credit shall be determined under this subpart with respect to any property used
(i) by the United States, any State or political subdivision thereof, any possession of the United States, or any agency or instrumentality of any of the foregoing, or
(ii) by any foreign person or entity (as defined in section 168 (h)(2)(C)), but only with respect to property to which section 168 (h)(2)(A)(iii) applies (determined after the application of section 168 (h)(2)(B)).
(B) Exception for short-term leases 
This paragraph and paragraph (3) shall not apply to any property by reason of use under a lease with a term of less than 6 months (determined under section 168 (i)(3)).
(C) Exception for qualified rehabilitated buildings leased to governments, etc. 
If any qualified rehabilitated building is leased to a governmental unit (or a foreign person or entity) this paragraph shall not apply for purposes of determining the rehabilitation credit with respect to such building.
(D) Special rules for partnerships, etc. 
For purposes of this paragraph and paragraph (3), rules similar to the rules of paragraphs (5) and (6) of section 168 (h) shall apply.
(E) Cross reference 
For special rules for the application of this paragraph and paragraph (3), see section 168 (h).
(c) Basis adjustment to investment credit property 

(1) In general 
For purposes of this subtitle, if a credit is determined under this subpart with respect to any property, the basis of such property shall be reduced by the amount of the credit so determined.
(2) Certain dispositions 
If during any taxable year there is a recapture amount determined with respect to any property the basis of which was reduced under paragraph (1), the basis of such property (immediately before the event resulting in such recapture) shall be increased by an amount equal to such recapture amount. For purposes of the preceding sentence, the term recapture amount means any increase in tax (or adjustment in carrybacks or carryovers) determined under subsection (a).
(3) Special rule 
In the case of any energy credit
(A) only 50 percent of such credit shall be taken into account under paragraph (1), and
(B) only 50 percent of any recapture amount attributable to such credit shall be taken into account under paragraph (2).
(4) Recapture of reductions 

(A) In general 
For purposes of sections 1245 and 1250, any reduction under this subsection shall be treated as a deduction allowed for depreciation.
(B) Special rule for section 1250 
For purposes of section 1250 (b), the determination of what would have been the depreciation adjustments under the straight line method shall be made as if there had been no reduction under this section.
(5) Adjustment in basis of interest in partnership or S corporation 
The adjusted basis of
(A) a partners interest in a partnership, and
(B) stock in an S corporation,

shall be appropriately adjusted to take into account adjustments made under this subsection in the basis of property held by the partnership or S corporation (as the case may be).

(d) Certain rules made applicable 
For purposes of this subpart, rules similar to the rules of the following provisions (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990) shall apply:
(1) Section 46 (e) (relating to limitations with respect to certain persons).
(2) Section 46 (f) (relating to limitation in case of certain regulated companies).
(3) Section 46 (h) (relating to special rules for cooperatives).
(4) Paragraphs (2) and (3) of section 48 (b) (relating to special rule for sale-leasebacks).
(5) Section 48 (d) (relating to certain leased property).
(6) Section 48 (f) (relating to estates and trusts).
(7) Section 48 (r) (relating to certain 501(d) organizations).

Paragraphs (1)(A), (2)(A), and (4) of the section 46 (e) referred to in paragraph (1) of this subsection shall not apply to any taxable year beginning after December 31, 1995.

[1] So in original. The period probably should be a semicolon.

50A, 50B. Repealed. Pub. L. 98369, div. A, title IV, 474(m)(2), July 18, 1984, 98 Stat. 833]

Section 50A, added Pub. L. 92–178, title VI, § 601(b), Dec. 10, 1971, 85 Stat. 554; amended Pub. L. 93–406, title II, §§ 2001(g)(2)(B), 2002 (g)(2), 2005 (c)(4), Sept. 2, 1974, 88 Stat. 957, 968, 991; Pub. L. 94–12, title IV, § 401(a)(1), (2), Mar. 29, 1975, 89 Stat. 45; Pub. L. 94–401, § 4(a), Sept. 7, 1976, 90 Stat. 1217; Pub. L. 94–455, title V, § 503(b)(4), title XIX, 1901(a)(6), (b)(1)(D), 1906 (b)(13)(A), title XXI, 2107(a)(1)(3), (b), (c), Oct. 4, 1976, 90 Stat. 1562, 1765, 1790, 1834, 1903, 1904; Pub. L. 95–600, title III, § 322(a)(c), Nov. 6, 1978, 92 Stat. 2836, 2837; Pub. L. 96–178, § 6(c)(1), Jan. 2, 1980, 93 Stat. 1298; Pub. L. 96–222, title I, § 103(a)(7)(D)(i), Apr. 1, 1980, 94 Stat. 211; Pub. L. 97–34, title II, § 207(c)(1), Aug. 13, 1981, 95 Stat. 225; Pub. L. 97–248, title I, § 265(b)(2)(A)(ii), Sept. 3, 1982, 96 Stat. 547; Pub. L. 97–354, § 5(a)(9), Oct. 19, 1982, 96 Stat. 1693, provided for a credit for expenses of work incentive programs, for the determination of the amount of that credit, and for the carryover and carryback of unused credit. Section 50B, added Pub. L. 92–178, title VI, § 601(b), Dec. 10, 1971, 85 Stat. 556; amended Pub. L. 94–12, title III, § 302(c)(4), title IV, 401(a)(3)(5), Mar. 29, 1975, 89 Stat. 44, 46; Pub. L. 94–401, § 4(b), Sept. 7, 1976, 90 Stat. 1218; Pub. L. 94–455, title XIX, § 1906(b)(13)(A), title XXI, 2107(a)(4), (d)(f), Oct. 4, 1976, 90 Stat. 1834, 1903, 1904; Pub. L. 95–171, § 1(e), Nov. 12, 1977, 91 Stat. 1353; Pub. L. 95–600, title III, § 322(d), Nov. 6, 1978, 92 Stat. 2837; Pub. L. 96–178, §§ 3(a)(1), (3), 6 (c)(2), (3), Jan. 2, 1980, 93 Stat. 1295, 1298; Pub. L. 96–222, title I, § 103(a)(5), (7)(C), (D)(ii), (iii), Apr. 1, 1980, 94 Stat. 209, 211; Pub. L. 96–272, title II, § 208(b)(1), (2), June 17, 1980, 94 Stat. 526, 527; Pub. L. 97–34, title II, § 261(b)(2)(B)(i), Aug. 13, 1981, 95 Stat. 261; Pub. L. 97–354, § 5(a)(10), Oct. 19, 1982, 96 Stat. 1693; Pub. L. 101–239, title VII, § 7644, Dec. 19, 1989, 103 Stat. 2381, provided for the definition of terms related to the expenses of work incentive programs, limitations on such expenses, and special rules to be applied in connection with the computation of the credit. Subsequent to repeal, Pub. L. 101–239, title VII, § 7644(a), Dec. 19, 1989, 103 Stat. 2381, provided that: (a) In General.So much of subparagraph (A) of section 50B(h)(1) of the Internal Revenue Code of 1954 (as in effect for taxable years beginning before January 1, 1982) as precedes clause (i) thereof is amended to read as follows: (A) who has been certified (or for whom a written request for certification has been made) on or before the day the individual began work for the taxpayer by the Secretary of Labor or by the appropriate agency of State or local government as. (b) Effective Date.The amendment made by subsection (a) shall apply for purposes of credits first claimed after March 11, 1987.

Subpart F - Rules for Computing Work Opportunity Credit

26 USC 51 - Amount of credit

(a) Determination of amount 
For purposes of section 38, the amount of the work opportunity credit determined under this section for the taxable year shall be equal to 40 percent of the qualified first-year wages for such year.
(b) Qualified wages defined 
For purposes of this subpart
(1) In general 
The term qualified wages means the wages paid or incurred by the employer during the taxable year to individuals who are members of a targeted group.
(2) Qualified first-year wages 
The term qualified first-year wages means, with respect to any individual, qualified wages attributable to service rendered during the 1-year period beginning with the day the individual begins work for the employer.
(3) Limitation on wages per year taken into account 
The amount of the qualified first-year wages which may be taken into account with respect to any individual shall not exceed $6,000 per year ($12,000 per year in the case of any individual who is a qualified veteran by reason of subsection (d)(3)(A)(ii)).
(c) Wages defined 
For purposes of this subpart
(1) In general 
Except as otherwise provided in this subsection and subsection (h)(2), the term wages has the meaning given to such term by subsection (b) of section 3306 (determined without regard to any dollar limitation contained in such section).
(2) On-the-job training and work supplementation payments 

(A) Exclusion for employers receiving on-the-job training payments 
The term wages shall not include any amounts paid or incurred by an employer for any period to any individual for whom the employer receives federally funded payments for on-the-job training of such individual for such period.
(B) Reduction for work supplementation payments to employers 
The amount of wages which would (but for this subparagraph) be qualified wages under this section for an employer with respect to an individual for a taxable year shall be reduced by an amount equal to the amount of the payments made to such employer (however utilized by such employer) with respect to such individual for such taxable year under a program established under section 482(e)1 of the Social Security Act.
(3) Payments for services during labor disputes 
If
(A) the principal place of employment of an individual with the employer is at a plant or facility, and
(B) there is a strike or lockout involving employees at such plant or facility,

the term wages shall not include any amount paid or incurred by the employer to such individual for services which are the same as, or substantially similar to, those services performed by employees participating in, or affected by, the strike or lockout during the period of such strike or lockout.

(4) Termination 
The term wages shall not include any amount paid or incurred to an individual who begins work for the employer
(A) after December 31, 1994, and before October 1, 1996, or
(B) after August 31, 2011.
(d) Members of targeted groups 
For purposes of this subpart
(1) In general 
An individual is a member of a targeted group if such individual is
(A) a qualified IVA recipient,
(B) a qualified veteran,
(C) a qualified ex-felon,
(D) a designated community resident,
(E) a vocational rehabilitation referral,
(F) a qualified summer youth employee,
(G) a qualified food stamp recipient,
(H) a qualified SSI recipient, or
(I) a long-term family assistance recipient.
(2) Qualified IV–A recipient 

(A) In general 
The term qualified IVA recipient means any individual who is certified by the designated local agency as being a member of a family receiving assistance under a IVA program for any 9 months during the 18-month period ending on the hiring date.
(B) IV–A program 
For purposes of this paragraph, the term IVA program means any program providing assistance under a State program funded under part A of title IV of the Social Security Act and any successor of such program.
(3) Qualified veteran 

(A) In general 
The term qualified veteran means any veteran who is certified by the designated local agency as
(i) being a member of a family receiving assistance under a food stamp program under the Food Stamp Act of 1977 for at least a 3-month period ending during the 12-month period ending on the hiring date, or
(ii) entitled to compensation for a service-connected disability, and
(I) having a hiring date which is not more that 1 year after having been discharged or released from active duty in the Armed Forces of the United States, or
(II) having aggregate periods of unemployment during the 1-year period ending on the hiring date which equal or exceed 6 months.
(B) Veteran 
For purposes of subparagraph (A), the term veteran means any individual who is certified by the designated local agency as
(i) 
(I) having served on active duty (other than active duty for training) in the Armed Forces of the United States for a period of more than 180 days, or
(II) having been discharged or released from active duty in the Armed Forces of the United States for a service-connected disability, and
(ii) not having any day during the 60-day period ending on the hiring date which was a day of extended active duty in the Armed Forces of the United States.

For purposes of clause (ii), the term extended active duty means a period of more than 90 days during which the individual was on active duty (other than active duty for training).

(C) Other definitions 
For purposes of subparagraph (A), the terms compensation and service-connected have the meanings given such terms under section 101 of title 38, United States Code.
(4) Qualified ex-felon 
The term qualified ex-felon means any individual who is certified by the designated local agency
(A) as having been convicted of a felony under any statute of the United States or any State, and
(B) as having a hiring date which is not more than 1 year after the last date on which such individual was so convicted or was released from prison.
(5) Designated community residents 

(A) In general 
The term designated community resident means any individual who is certified by the designated local agency
(i) as having attained age 18 but not age 40 on the hiring date, and
(ii) as having his principal place of abode within an empowerment zone, enterprise community, renewal community, or rural renewal county.
(B) Individual must continue to reside in zone, community, or county 
In the case of a designated community resident, the term qualified wages shall not include wages paid or incurred for services performed while the individuals principal place of abode is outside an empowerment zone, enterprise community, renewal community, or rural renewal county.
(C) Rural renewal county 
For purposes of this paragraph, the term rural renewal county means any county which
(i) is outside a metropolitan statistical area (defined as such by the Office of Management and Budget), and
(ii) during the 5-year periods 1990 through 1994 and 1995 through 1999 had a net population loss.
(6) Vocational rehabilitation referral 
The term vocational rehabilitation referral means any individual who is certified by the designated local agency as
(A) having a physical or mental disability which, for such individual, constitutes or results in a substantial handicap to employment, and
(B) having been referred to the employer upon completion of (or while receiving) rehabilitative services pursuant to
(i) an individualized written plan for employment under a State plan for vocational rehabilitation services approved under the Rehabilitation Act of 1973,
(ii) a program of vocational rehabilitation carried out under chapter 31 of title 38, United States Code, or
(iii) an individual work plan developed and implemented by an employment network pursuant to subsection (g) of section 1148 of the Social Security Act with respect to which the requirements of such subsection are met.
(7) Qualified summer youth employee 

(A) In general 
The term qualified summer youth employee means any individual
(i) who performs services for the employer between May 1 and September 15,
(ii) who is certified by the designated local agency as having attained age 16 but not 18 on the hiring date (or if later, on May 1 of the calendar year involved),
(iii) who has not been an employee of the employer during any period prior to the 90-day period described in subparagraph (B)(i), and
(iv) who is certified by the designated local agency as having his principal place of abode within an empowerment zone, enterprise community, or renewal community.
(B) Special rules for determining amount of credit 
For purposes of applying this subpart to wages paid or incurred to any qualified summer youth employee
(i) subsection (b)(2) shall be applied by substituting any 90-day period between May 1 and September 15 for the 1-year period beginning with the day the individual begins work for the employer, and
(ii) subsection (b)(3) shall be applied by substituting $3,000 for $6,000.

The preceding sentence shall not apply to an individual who, with respect to the same employer, is certified as a member of another targeted group after such individual has been a qualified summer youth employee.

(C) Youth must continue to reside in zone or community 
Paragraph (5)(B) shall apply for purposes of subparagraph (A)(iv).
(8) Qualified food stamp recipient 

(A) In general 
The term qualified food stamp recipient means any individual who is certified by the designated local agency
(i) as having attained age 18 but not age 40 on the hiring date, and
(ii) as being a member of a family
(I) receiving assistance under a food stamp program under the Food Stamp Act of 1977 for the 6-month period ending on the hiring date, or
(II) receiving such assistance for at least 3 months of the 5-month period ending on the hiring date, in the case of a member of a family who ceases to be eligible for such assistance under section 6(o) of the Food Stamp Act of 1977.
(B) Participation information 
Notwithstanding any other provision of law, the Secretary of the Treasury and the Secretary of Agriculture shall enter into an agreement to provide information to designated local agencies with respect to participation in the food stamp program.
(9) Qualified SSI recipient 
The term qualified SSI recipient means any individual who is certified by the designated local agency as receiving supplemental security income benefits under title XVI of the Social Security Act (including supplemental security income benefits of the type described in section 1616 of such Act or section 212 of Public Law 9366) for any month ending within the 60-day period ending on the hiring date.
(10) Long-term family assistance recipient 
The term long-term family assistance recipient means any individual who is certified by the designated local agency
(A) as being a member of a family receiving assistance under a IVA program (as defined in paragraph (2)(B)) for at least the 18-month period ending on the hiring date,
(B) 
(i) as being a member of a family receiving such assistance for 18 months beginning after August 5, 1997, and
(ii) as having a hiring date which is not more than 2 years after the end of the earliest such 18-month period, or
(C) 
(i) as being a member of a family which ceased to be eligible for such assistance by reason of any limitation imposed by Federal or State law on the maximum period such assistance is payable to a family, and
(ii) as having a hiring date which is not more than 2 years after the date of such cessation.
(11) Hiring date 
The term hiring date means the day the individual is hired by the employer.
(12) Designated local agency 
The term designated local agency means a State employment security agency established in accordance with the Act of June 6, 1933, as amended (29 U.S.C. 49–49n).
(13) Special rules for certifications 

(A) In general 
An individual shall not be treated as a member of a targeted group unless
(i) on or before the day on which such individual begins work for the employer, the employer has received a certification from a designated local agency that such individual is a member of a targeted group, or
(ii) 
(I) on or before the day the individual is offered employment with the employer, a pre-screening notice is completed by the employer with respect to such individual, and
(II) not later than the 28th day after the individual begins work for the employer, the employer submits such notice, signed by the employer and the individual under penalties of perjury, to the designated local agency as part of a written request for such a certification from such agency.

For purposes of this paragraph, the term pre-screening notice means a document (in such form as the Secretary shall prescribe) which contains information provided by the individual on the basis of which the employer believes that the individual is a member of a targeted group.

(B) Incorrect certifications 
If
(i) an individual has been certified by a designated local agency as a member of a targeted group, and
(ii) such certification is incorrect because it was based on false information provided by such individual,

the certification shall be revoked and wages paid by the employer after the date on which notice of revocation is received by the employer shall not be treated as qualified wages.

(C) Explanation of denial of request 
If a designated local agency denies a request for certification of membership in a targeted group, such agency shall provide to the person making such request a written explanation of the reasons for such denial.
(e) Credit for second-year wages for employment of long-term family assistance recipients 

(1) In general 
With respect to the employment of a long-term family assistance recipient
(A) the amount of the work opportunity credit determined under this section for the taxable year shall include 50 percent of the qualified second-year wages for such year, and
(B) in lieu of applying subsection (b)(3), the amount of the qualified first-year wages, and the amount of qualified second-year wages, which may be taken into account with respect to such a recipient shall not exceed $10,000 per year.
(2) Qualified second-year wages 
For purposes of this subsection, the term qualified second-year wages means qualified wages
(A) which are paid to a long-term family assistance recipient, and
(B) which are attributable to service rendered during the 1-year period beginning on the day after the last day of the 1-year period with respect to such recipient determined under subsection (b)(2).
(3) Special rules for agricultural and railway labor 
If such recipient is an employee to whom subparagraph (A) or (B) of subsection (h)(1) applies, rules similar to the rules of such subparagraphs shall apply except that
(A) such subparagraph (A) shall be applied by substituting $10,000 for $6,000, and
(B) such subparagraph (B) shall be applied by substituting $833.33 for $500.
(f) Remuneration must be for trade or business employment 

(1) In general 
For purposes of this subpart, remuneration paid by an employer to an employee during any taxable year shall be taken into account only if more than one-half of the remuneration so paid is for services performed in a trade or business of the employer.
(2) Special rule for certain determination 
Any determination as to whether paragraph (1), or subparagraph (A) or (B) of subsection (h)(1), applies with respect to any employee for any taxable year shall be made without regard to subsections (a) and (b) of section 52.
(g) United States Employment Service to notify employers of availability of credit 
The United States Employment Service, in consultation with the Internal Revenue Service, shall take such steps as may be necessary or appropriate to keep employers apprised of the availability of the work opportunity credit determined under this subpart.
(h) Special rules for agricultural labor and railway labor 
For purposes of this subpart
(1) Unemployment insurance wages 

(A) Agricultural labor 
If the services performed by any employee for an employer during more than one-half of any pay period (within the meaning of section 3306 (d)) taken into account with respect to any year constitute agricultural labor (within the meaning of section 3306 (k)), the term unemployment insurance wages means, with respect to the remuneration paid by the employer to such employee for such year, an amount equal to so much of such remuneration as constitutes wages within the meaning of section 3121 (a), except that the contribution and benefit base for each calendar year shall be deemed to be $6,000.
(B) Railway labor 
If more than one-half of remuneration paid by an employer to an employee during any year is remuneration for service described in section 3306 (c)(9), the term unemployment insurance wages means, with respect to such employee for such year, an amount equal to so much of the remuneration paid to such employee during such year which would be subject to contributions under section 8(a) of the Railroad Unemployment Insurance Act (45 U.S.C. 358 (a)) if the maximum amount subject to such contributions were $500 per month.
(2) Wages 
In any case to which subparagraph (A) or (B) of paragraph (1) applies, the term wages means unemployment insurance wages (determined without regard to any dollar limitation).
(i) Certain individuals ineligible 

(1) Related individuals 
No wages shall be taken into account under subsection (a) with respect to an individual who
(A) bears any of the relationships described in subparagraphs (A) through (G) of section 152 (d)(2) to the taxpayer, or, if the taxpayer is a corporation, to an individual who owns, directly or indirectly, more than 50 percent in value of the outstanding stock of the corporation, or, if the taxpayer is an entity other than a corporation, to any individual who owns, directly or indirectly, more than 50 percent of the capital and profits interests in the entity,[2] (determined with the application of section 267 (c)),
(B) if the taxpayer is an estate or trust, is a grantor, beneficiary, or fiduciary of the estate or trust, or is an individual who bears any of the relationships described in subparagraphs (A) through (G) of section 152 (d)(2) to a grantor, beneficiary, or fiduciary of the estate or trust, or
(C) is a dependent (described in section 152(d)(2)(H)) of the taxpayer, or, if the taxpayer is a corporation, of an individual described in subparagraph (A), or, if the taxpayer is an estate or trust, of a grantor, beneficiary, or fiduciary of the estate or trust.
(2) Nonqualifying rehires 
No wages shall be taken into account under subsection (a) with respect to any individual if, prior to the hiring date of such individual, such individual had been employed by the employer at any time.
(3) Individuals not meeting minimum employment periods 

(A) Reduction of credit for individuals performing fewer than 400 hours of service 
In the case of an individual who has performed at least 120 hours, but less than 400 hours, of service for the employer, subsection (a) shall be applied by substituting 25 percent for 40 percent.
(B) Denial of credit for individuals performing fewer than 120 hours of service 
No wages shall be taken into account under subsection (a) with respect to any individual unless such individual has performed at least 120 hours of service for the employer.
(j) Election to have work opportunity credit not apply 

(1) In general 
A taxpayer may elect to have this section not apply for any taxable year.
(2) Time for making election 
An election under paragraph (1) for any taxable year may be made (or revoked) at any time before the expiration of the 3-year period beginning on the last date prescribed by law for filing the return for such taxable year (determined without regard to extensions).
(3) Manner of making election 
An election under paragraph (1) (or revocation thereof) shall be made in such manner as the Secretary may by regulations prescribe.
(k) Treatment of successor employers; treatment of employees performing services for other persons 

(1) Treatment of successor employers 
Under regulations prescribed by the Secretary, in the case of a successor employer referred to in section 3306 (b)(1), the determination of the amount of the credit under this section with respect to wages paid by such successor employer shall be made in the same manner as if such wages were paid by the predecessor employer referred to in such section.
(2) Treatment of employees performing services for other persons 
No credit shall be determined under this section with respect to remuneration paid by an employer to an employee for services performed by such employee for another person unless the amount reasonably expected to be received by the employer for such services from such other person exceeds the remuneration paid by the employer to such employee for such services.
[1] See References in Text note below.
[2] So in original. The comma probably should not appear.

26 USC 51A - Repealed. Pub. L. 109432, div. A, title I, 105(e)(4)(A), Dec. 20, 2006, 120 Stat. 2937]

Section, added Pub. L. 105–34, title VIII, § 801(a), Aug. 5, 1997, 111 Stat. 869; amended Pub. L. 105–277, div. J, title I, 1003, Oct. 21, 1998, 112 Stat. 2681–888; Pub. L. 106–170, title V, § 505(a), Dec. 17, 1999, 113 Stat. 1921; Pub. L. 107–16, title IV, § 411(c), June 7, 2001, 115 Stat. 63; Pub. L. 107–147, title IV, § 417(4), title VI, 605(a), Mar. 9, 2002, 116 Stat. 56, 60; Pub. L. 108–311, title III, § 303(a)(2), Oct. 4, 2004, 118 Stat. 1179; Pub. L. 109–432, div. A, title I, 105(a), Dec. 20, 2006, 120 Stat. 2936, related to temporary incentives for employing long-term family assistance recipients. See section 51 (e) of this title.

26 USC 52 - Special rules

(a) Controlled group of corporations 
For purposes of this subpart, all employees of all corporations which are members of the same controlled group of corporations shall be treated as employed by a single employer. In any such case, the credit (if any) determined under section 51 (a) with respect to each such member shall be its proportionate share of the wages giving rise to such credit. For purposes of this subsection, the term controlled group of corporations has the meaning given to such term by section 1563 (a), except that
(1) more than 50 percent shall be substituted for at least 80 percent each place it appears in section 1563 (a)(1), and
(2) the determination shall be made without regard to subsections (a)(4) and (e)(3)(C) of section 1563.
(b) Employees of partnerships, proprietorships, etc., which are under common control 
For purposes of this subpart, under regulations prescribed by the Secretary
(1) all employees of trades or business (whether or not incorporated) which are under common control shall be treated as employed by a single employer, and
(2) the credit (if any) determined under section 51 (a) with respect to each trade or business shall be its proportionate share of the wages giving rise to such credit.

The regulations prescribed under this subsection shall be based on principles similar to the principles which apply in the case of subsection (a).

(c) Tax-exempt organizations 
No credit shall be allowed under section 38 for any work opportunity credit determined under this subpart to any organization (other than a cooperative described in section 521) which is exempt from income tax under this chapter.
(d) Estates and trusts 
In the case of an estate or trust
(1) the amount of the credit determined under this subpart for any taxable year shall be apportioned between the estate or trust and the beneficiaries on the basis of the income of the estate or trust allocable to each, and
(2) any beneficiary to whom any amount has been apportioned under paragraph (1) shall be allowed, subject to section 38 (c), a credit under section 38 (a) for such amount.
(e) Limitations with respect to certain persons 
Under regulations prescribed by the Secretary, in the case of
(1) a regulated investment company or a real estate investment trust subject to taxation under subchapter M (section 851 and following), and
(2) a cooperative organization described in section 1381 (a),

rules similar to the rules provided in subsections (e) and (h) of section 46 (as in effect on the day before the date of the enactment of the Revenue Reconciliation Act of 1990) shall apply in determining the amount of the credit under this subpart.

Subpart G - Credit Against Regular Tax for Prior Year Minimum Tax Liability

26 USC 53 - Credit for prior year minimum tax liability

(a) Allowance of credit 
There shall be allowed as a credit against the tax imposed by this chapter for any taxable year an amount equal to the minimum tax credit for such taxable year.
(b) Minimum tax credit 
For purposes of subsection (a), the minimum tax credit for any taxable year is the excess (if any) of
(1) the adjusted net minimum tax imposed for all prior taxable years beginning after 1986, over
(2) the amount allowable as a credit under subsection (a) for such prior taxable years.
(c) Limitation 
The credit allowable under subsection (a) for any taxable year shall not exceed the excess (if any) of
(1) the regular tax liability of the taxpayer for such taxable year reduced by the sum of the credits allowable under subparts A, B, D, E, and F of this part, over
(2) the tentative minimum tax for the taxable year.
(d) Definitions 
For purposes of this section
(1) Net minimum tax 

(A) In general 
The term net minimum tax means the tax imposed by section 55.
(B) Credit not allowed for exclusion preferences 

(i) Adjusted net minimum tax The adjusted net minimum tax for any taxable year is
(I) the amount of the net minimum tax for such taxable year, reduced by
(II) the amount which would be the net minimum tax for such taxable year if the only adjustments and items of tax preference taken into account were those specified in clause (ii).
(ii) Specified items The following are specified in this clause
(I) the adjustments provided for in subsection (b)(1) of section 56, and
(II) the items of tax preference described in paragraphs (1), (5), and (7) of section 57 (a).
(iii) Special rule The adjusted net minimum tax for the taxable year shall be increased by the amount of the credit not allowed under section 30 solely by reason of the application of section 30 (b)(3)(B).
(iv) Credit allowable for exclusion preferences of corporations In the case of a corporation
(I) the preceding provisions of this subparagraph shall not apply, and
(II) the adjusted net minimum tax for any taxable year is the amount of the net minimum tax for such year increased in the manner provided in clause (iii).
(2) Tentative minimum tax 
The term tentative minimum tax has the meaning given to such term by section 55 (b).
(e) Special rule for individuals with long-term unused credits 

(1) In general 
If an individual has a long-term unused minimum tax credit for any taxable year beginning before January 1, 2013, the amount determined under subsection (c) for such taxable year shall not be less than the AMT refundable credit amount for such taxable year.
(2) AMT refundable credit amount 
For purposes of paragraph (1)
(A) In general 
The term AMT refundable credit amount means, with respect to any taxable year, the amount (not in excess of the long-term unused minimum tax credit for such taxable year) equal to the greater of
(i) $5,000,
(ii) 20 percent of the long-term unused minimum tax credit for such taxable year, or
(iii) the amount (if any) of the AMT refundable credit amount determined under this paragraph for the taxpayers preceding taxable year (as determined before any reduction under subparagraph (B)).
(B) Phaseout of AMT refundable credit amount 

(i) In general In the case of an individual whose adjusted gross income for any taxable year exceeds the threshold amount (within the meaning of section 151 (d)(3)(C)), the AMT refundable credit amount determined under subparagraph (A) for such taxable year shall be reduced by the applicable percentage (within the meaning of section 151 (d)(3)(B)).
(ii) Adjusted gross income For purposes of clause (i), adjusted gross income shall be determined without regard to sections 911, 931, and 933.
(3) Long-term unused minimum tax credit 

(A) In general 
For purposes of this subsection, the term long-term unused minimum tax credit means, with respect to any taxable year, the portion of the minimum tax credit determined under subsection (b) attributable to the adjusted net minimum tax for taxable years before the 3rd taxable year immediately preceding such taxable year.
(B) First-in, first-out ordering rule 
For purposes of subparagraph (A), credits shall be treated as allowed under subsection (a) on a first-in, first-out basis.
(4) Credit refundable 
For purposes of this title (other than this section), the credit allowed by reason of this subsection shall be treated as if it were allowed under subpart C.

Subpart H - Nonrefundable Credit to Holders of Certain Bonds

26 USC 54 - Credit to holders of clean renewable energy bonds

(a) Allowance of credit 
If a taxpayer holds a clean renewable energy bond on one or more credit allowance dates of the bond occurring during any taxable year, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the sum of the credits determined under subsection (b) with respect to such dates.
(b) Amount of credit 

(1) In general 
The amount of the credit determined under this subsection with respect to any credit allowance date for a clean renewable energy bond is 25 percent of the annual credit determined with respect to such bond.
(2) Annual credit 
The annual credit determined with respect to any clean renewable energy bond is the product of
(A) the credit rate determined by the Secretary under paragraph (3) for the day on which such bond was sold, multiplied by
(B) the outstanding face amount of the bond.
(3) Determination 
For purposes of paragraph (2), with respect to any clean renewable energy bond, the Secretary shall determine daily or cause to be determined daily a credit rate which shall apply to the first day on which there is a binding, written contract for the sale or exchange of the bond. The credit rate for any day is the credit rate which the Secretary or the Secretarys designee estimates will permit the issuance of clean renewable energy bonds with a specified maturity or redemption date without discount and without interest cost to the qualified issuer.
(4) Credit allowance date 
For purposes of this section, the term credit allowance date means
(A) March 15,
(B) June 15,
(C) September 15, and
(D) December 15.

Such term also includes the last day on which the bond is outstanding.

(5) Special rule for issuance and redemption 
In the case of a bond which is issued during the 3-month period ending on a credit allowance date, the amount of the credit determined under this subsection with respect to such credit allowance date shall be a ratable portion of the credit otherwise determined based on the portion of the 3-month period during which the bond is outstanding. A similar rule shall apply when the bond is redeemed or matures.
(c) Limitation based on amount of tax 
The credit allowed under subsection (a) for any taxable year shall not exceed the excess of
(1) the sum of the regular tax liability (as defined in section 26 (b)) plus the tax imposed by section 55, over
(2) the sum of the credits allowable under this part (other than subpart C, section 1400N (l), and this section).
(d) Clean renewable energy bond 
For purposes of this section
(1) In general 
The term clean renewable energy bond means any bond issued as part of an issue if
(A) the bond is issued by a qualified issuer pursuant to an allocation by the Secretary to such issuer of a portion of the national clean renewable energy bond limitation under subsection (f)(2),
(B) 95 percent or more of the proceeds of such issue are to be used for capital expenditures incurred by qualified borrowers for one or more qualified projects,
(C) the qualified issuer designates such bond for purposes of this section and the bond is in registered form, and
(D) the issue meets the requirements of subsection (h).
(2) Qualified project; special use rules 

(A) In general 
The term qualified project means any qualified facility (as determined under section 45 (d) without regard to paragraph (10) and to any placed in service date) owned by a qualified borrower.
(B) Refinancing rules 
For purposes of paragraph (1)(B), a qualified project may be refinanced with proceeds of a clean renewable energy bond only if the indebtedness being refinanced (including any obligation directly or indirectly refinanced by such indebtedness) was originally incurred by a qualified borrower after the date of the enactment of this section.
(C) Reimbursement 
For purposes of paragraph (1)(B), a clean renewable energy bond may be issued to reimburse a qualified borrower for amounts paid after the date of the enactment of this section with respect to a qualified project, but only if
(i) prior to the payment of the original expenditure, the qualified borrower declared its intent to reimburse such expenditure with the proceeds of a clean renewable energy bond,
(ii) not later than 60 days after payment of the original expenditure, the qualified issuer adopts an official intent to reimburse the original expenditure with such proceeds, and
(iii) the reimbursement is made not later than 18 months after the date the original expenditure is paid.
(D) Treatment of changes in use 
For purposes of paragraph (1)(B), the proceeds of an issue shall not be treated as used for a qualified project to the extent that a qualified borrower or qualified issuer takes any action within its control which causes such proceeds not to be used for a qualified project. The Secretary shall prescribe regulations specifying remedial actions that may be taken (including conditions to taking such remedial actions) to prevent an action described in the preceding sentence from causing a bond to fail to be a clean renewable energy bond.
(e) Maturity limitations 

(1) Duration of term 
A bond shall not be treated as a clean renewable energy bond if the maturity of such bond exceeds the maximum term determined by the Secretary under paragraph (2) with respect to such bond.
(2) Maximum term 
During each calendar month, the Secretary shall determine the maximum term permitted under this paragraph for bonds issued during the following calendar month. Such maximum term shall be the term which the Secretary estimates will result in the present value of the obligation to repay the principal on the bond being equal to 50 percent of the face amount of such bond. Such present value shall be determined without regard to the requirements of subsection (l)(6) and using as a discount rate the average annual interest rate of tax-exempt obligations having a term of 10 years or more which are issued during the month. If the term as so determined is not a multiple of a whole year, such term shall be rounded to the next highest whole year.
(f) Limitation on amount of bonds designated 

(1) National limitation 
There is a national clean renewable energy bond limitation of $1,200,000,000.
(2) Allocation by Secretary 
The Secretary shall allocate the amount described in paragraph (1) among qualified projects in such manner as the Secretary determines appropriate, except that the Secretary may not allocate more than $750,000,000 of the national clean renewable energy bond limitation to finance qualified projects of qualified borrowers which are governmental bodies.
(g) Credit included in gross income 
Gross income includes the amount of the credit allowed to the taxpayer under this section (determined without regard to subsection (c)) and the amount so included shall be treated as interest income.
(h) Special rules relating to expenditures 

(1) In general 
An issue shall be treated as meeting the requirements of this subsection if, as of the date of issuance, the qualified issuer reasonably expects
(A) at least 95 percent of the proceeds of such issue are to be spent for one or more qualified projects within the 5-year period beginning on the date of issuance of the clean energy bond,
(B) a binding commitment with a third party to spend at least 10 percent of the proceeds of such issue will be incurred within the 6-month period beginning on the date of issuance of the clean energy bond or, in the case of a clean energy bond the proceeds of which are to be loaned to two or more qualified borrowers, such binding commitment will be incurred within the 6-month period beginning on the date of the loan of such proceeds to a qualified borrower, and
(C) such projects will be completed with due diligence and the proceeds of such issue will be spent with due diligence.
(2) Extension of period 
Upon submission of a request prior to the expiration of the period described in paragraph (1)(A), the Secretary may extend such period if the qualified issuer establishes that the failure to satisfy the 5-year requirement is due to reasonable cause and the related projects will continue to proceed with due diligence.
(3) Failure to spend required amount of bond proceeds within 5 years 
To the extent that less than 95 percent of the proceeds of such issue are expended by the close of the 5-year period beginning on the date of issuance (or if an extension has been obtained under paragraph (2), by the close of the extended period), the qualified issuer shall redeem all of the nonqualified bonds within 90 days after the end of such period. For purposes of this paragraph, the amount of the nonqualified bonds required to be redeemed shall be determined in the same manner as under section 142.
(i) Special rules relating to arbitrage 
A bond which is part of an issue shall not be treated as a clean renewable energy bond unless, with respect to the issue of which the bond is a part, the qualified issuer satisfies the arbitrage requirements of section 148 with respect to proceeds of the issue.
(j) Cooperative electric company; qualified energy tax credit bond lender; governmental body; qualified borrower 
For purposes of this section
(1) Cooperative electric company 
The term cooperative electric company means a mutual or cooperative electric company described in section 501 (c)(12) or section 1381 (a)(2)(C), or a not-for-profit electric utility which has received a loan or loan guarantee under the Rural Electrification Act.
(2) Clean renewable energy bond lender 
The term clean renewable energy bond lender means a lender which is a cooperative which is owned by, or has outstanding loans to, 100 or more cooperative electric companies and is in existence on February 1, 2002, and shall include any affiliated entity which is controlled by such lender.
(3) Governmental body 
The term governmental body means any State, territory, possession of the United States, the District of Columbia, Indian tribal government, and any political subdivision thereof.
(4) Qualified issuer 
The term qualified issuer means
(A) a clean renewable energy bond lender,
(B) a cooperative electric company, or
(C) a governmental body.
(5) Qualified borrower 
The term qualified borrower means
(A) a mutual or cooperative electric company described in section 501 (c)(12) or 1381 (a)(2)(C), or
(B) a governmental body.
(k) Special rules relating to pool bonds 
No portion of a pooled financing bond may be allocable to any loan unless the borrower has entered into a written loan commitment for such portion prior to the issue date of such issue.
(l) Other definitions and special rules 
For purposes of this section
(1) Bond 
The term bond includes any obligation.
(2) Pooled financing bond 
The term pooled financing bond shall have the meaning given such term by section 149 (f)(6)(A).
(3) Partnership; S corporation; and other pass-thru entities 

(A) In general 
Under regulations prescribed by the Secretary, in the case of a partnership, trust, S corporation, or other pass-thru entity, rules similar to the rules of section 41 (g) shall apply with respect to the credit allowable under subsection (a).
(B) No basis adjustment 
In the case of a bond held by a partnership or an S corporation, rules similar to the rules under section 1397E (l) shall apply.
(4) Bonds held by regulated investment companies 
If any clean renewable energy bond is held by a regulated investment company, the credit determined under subsection (a) shall be allowed to shareholders of such company under procedures prescribed by the Secretary.
(5) Ratable principal amortization required 
A bond shall not be treated as a clean renewable energy bond unless it is part of an issue which provides for an equal amount of principal to be paid by the qualified issuer during each calendar year that the issue is outstanding.
(6) Reporting 
Issuers of clean renewable energy bonds shall submit reports similar to the reports required under section 149 (e).
(m) Termination 
This section shall not apply with respect to any bond issued after December 31, 2008.