(a) Allowance of deduction If any portion of the qualified business credits determined for any taxable year has not, after the application of section
38 (c), been allowed to the taxpayer as a credit under section
38 for any taxable year, an amount equal to the credit not so allowed shall be allowed to the taxpayer as a deduction for the first taxable year following the last taxable year for which such credit could, under section
39, have been allowed as a credit.
(b) Taxpayer’s dying or ceasing to exist If a taxpayer dies or ceases to exist before the first taxable year following the last taxable year for which the qualified business credits could, under section
39, have been allowed as a credit, the amount described in subsection (a) (or the proper portion thereof) shall, under regulations prescribed by the Secretary, be allowed to the taxpayer as a deduction for the taxable year in which such death or cessation occurs.
(c) Qualified business credits For purposes of this section, the term qualified business credits means
(1) the investment credit determined under section
46 (but only to the extent attributable to property the basis of which is reduced by section
50 (c)),
(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) (other than such credit determined under section
280C (c)(3)) for taxable years beginning after December 31, 1988,
(5) the enhanced oil recovery credit determined under section
43 (a),
(6) the empowerment zone employment credit determined under section
1396 (a),
(7) the Indian employment credit determined under section
45A (a),
(8) the employer Social Security credit determined under section
45B (a),
(9) the new markets tax credit determined under section
45D (a),
(10) the small employer pension plan startup cost credit determined under section
45E (a),
(11) the biodiesel fuels credit determined under section
40A (a),
(12) the low sulfur diesel fuel production credit determined under section
45H (a), and
(13) the new energy efficient home credit determined under section
45L (a).
(d) Special rule for investment tax credit and research credit Subsection (a) shall be applied by substituting an amount equal to 50 percent of for an amount equal to in the case of
(1) the investment credit determined under section
46 (other than the rehabilitation credit), and
(2) the research credit determined under section
41 (a) for a taxable year beginning before January 1, 1990.