§280C. Certain expenses for which credits are allowable

(a) Rule for employment credits

No deduction shall be allowed for that portion of the wages or salaries paid or incurred for the taxable year which is equal to the sum of the credits determined for the taxable year under sections 45A(a), 51(a), and and ¹ 1396(a). In the case of a corporation which is a member of a controlled group of corporations (within the meaning of section 52(a)) or a trade or business which is treated as being under common control with other trades or businesses (within the meaning of section 52(b)), this subsection shall be applied under rules prescribed by the Secretary similar to the rules applicable under subsections (a) and (b) of section 52.

(b) Credit for qualified clinical testing expenses for certain drugs

(1) In general

No deduction shall be allowed for that portion of the qualified clinical testing expenses (as defined in section 28(b)) otherwise allowable as a deduction for the taxable year which is equal to the amount of the credit allowable for the taxable year under section 28 (determined without regard to subsection (d)(2) thereof).

(2) Similar rule where taxpayer capitalizes rather than deducts expenses

If-

(A) the amount of the credit allowable for the taxable year under section 28 (determined without regard to subsection (d)(2) thereof), exceeds

(B) the amount allowable as a deduction for the taxable year for qualified clinical testing expenses (determined without regard to paragraph (1)),

the amount chargeable to capital account for the taxable year for such expenses shall be reduced by the amount of such excess.

(3) Controlled groups

In the case of a corporation which is a member of a controlled group of corporations (within the meaning of section 41(f)(5)) or a trade or business which is treated as being under common control with other trades or business (within the meaning of section 41(f)(1)(B)), this subsection shall be applied under rules prescribed by the Secretary similar to the rules applicable under subparagraphs (A) and (B) of section 41(f)(1).

(c) Credit for increasing research activities

(1) In general

No deduction shall be allowed for that portion of the qualified research expenses (as defined in section 41(b)) or basic research expenses (as defined in section 41(e)(2)) otherwise allowable as a deduction for the taxable year which is equal to the amount of the credit determined for such taxable year under section 41(a).

(2) Similar rule where taxpayer capitalizes rather than deducts expenses

If-

(A) the amount of the credit determined for the taxable year under section 41(a)(1), exceeds

(B) the amount allowable as a deduction for such taxable year for qualified research expenses or basic research expenses (determined without regard to paragraph (1)),

the amount chargeable to capital account for the taxable year for such expenses shall be reduced by the amount of such excess.

(3) Election of reduced credit

(A) In general

In the case of any taxable year for which an election is made under this paragraph-

(i) paragraphs (1) and (2) shall not apply, and

(ii) the amount of the credit under section 41(a) shall be the amount determined under subparagraph (B).

(B) Amount of reduced credit

The amount of credit determined under this subparagraph for any taxable year shall be the amount equal to the excess of-

(i) the amount of credit determined under section 41(a) without regard to this paragraph, over

(ii) the product of-

(I) the amount described in clause (i), and

(II) the maximum rate of tax under section 11(b)(1).

(C) Election

An election under this paragraph for any taxable year shall be made not later than the time for filing the return of tax for such year (including extensions), shall be made on such return, and shall be made in such manner as the Secretary may prescribe. Such an election, once made, shall be irrevocable.

(4) Controlled groups

Paragraph (3) of subsection (b) shall apply for purposes of this subsection.

(Added Pub. L. 95–30, title II, §202(c)(1), May 23, 1977, 91 Stat. 147 ; amended Pub. L. 95–600, title III, §322(d)(1), Nov. 6, 1978, 92 Stat. 2838 ; Pub. L. 96–178, §6(c)(4), Jan. 2, 1980, 93 Stat. 1298 ; Pub. L. 96–222, title I, §103(a)(7)(D)(iv), Apr. 1, 1980, 94 Stat. 212 ; Pub. L. 97–414, §4(b)(1), (2)(A), Jan. 4, 1983, 96 Stat. 2055 ; Pub. L. 98–369, div. A, title IV, §474(r)(10), July 18, 1984, 98 Stat. 841 ; Pub. L. 99–514, title II, §231(d)(3)(E), title XVIII, §1847(b)(8), Oct. 22, 1986, 100 Stat. 2179 , 2856; Pub. L. 100–647, title IV, §4008(a), Nov. 10, 1988, 102 Stat. 3652 ; Pub. L. 101–239, title VII, §§7110(c)(1), 7814(e)(2)(A), Dec. 19, 1989, 103 Stat. 2325 , 2413; Pub. L. 103–66, title XIII, §§13302(b)(1), 13322(c)(1), Aug. 10, 1993, 107 Stat. 555 , 563.)

Amendments

1993-Subsec. (a). Pub. L. 103–66, §13322(c)(1), substituted "45A(a), 51(a), and" for "51(a)".

Pub. L. 103–66, §13302(b)(1), substituted "Rule for employment credits" for "Rule for targeted jobs credit" in heading and "the sum of the credits determined for the taxable year under sections 51(a) and 1396(a)" for "the amount of the credit determined for the taxable year under section 51(a)" in text.

1989-Subsec. (c)(1), (2)(A). Pub. L. 101–239, §7110(c)(1), struck out "50 percent of" before "the amount of the credit".

Subsec. (c)(3). Pub. L. 101–239, §7814(e)(2)(A), added par. (3). Former par. (3) redesignated (4).

Subsec. (c)(3)(B)(ii)(I). Pub. L. 101–239, §7110(c)(1), struck out "50 percent of" before "the amount described".

Subsec. (c)(4). Pub. L. 101–239, §7814(e)(2)(A), redesignated par. (3) as (4).

1988-Subsec. (c). Pub. L. 100–647 added subsec. (c).

1986-Subsec. (b)(1), (2)(A). Pub. L. 99–514, §1847(b)(8), substituted "section 28(b)" for "section 29(b)" in par. (1) and "section 28" for "section 29" in pars. (1) and (2)(A).

Subsec. (b)(3). Pub. L. 99–514, §231(d)(3)(E), substituted "section 41(f)(5)", "section 41(f)(1)(B)", and "section 41(f)(1)" for "section 30(f)(5)", "section 30(f)(1)(B)", and "section 30(f)(1)", respectively.

1984-Subsec. (a). Pub. L. 98–369, §474(r)(10)(A), (B), redesignated subsec. (b) as (a), in heading substituted "targeted jobs credit" for "section 44B credit", and in text substituted "No deduction shall be allowed for that portion of the wages or salaries paid or incurred for the taxable year which is equal to the amount of the credit determined for the taxable year under section 51(a)" for "No deduction shall be allowed for that portion of the wage or salaries paid or incurred for the taxable year which is equal to the amount of the credit allowable for the taxable year under section 44B (relating to credit for employment of certain new employees) determined without regard to the provisions of section 53 (relating to limitation based on amount of tax)". Former subsec. (a), which had provided that no deduction would be allowed for that portion of the work incentive program expenses paid or incurred for the taxable year which was equal to the amount of the credit allowable for the taxable year under section 40 (relating to credit for expenses of work incentive programs) determined without regard to the provisions of section 50A(a)(2) (relating to limitation based on amount of tax), and that in the case of a corporation which was a member of a controlled group of corporations (within the meaning of section 50B(g)(1) or a trade or business which was treated as being under common control with other trades or businesses within the meaning of section 50B(g)(2), this subsection would be applied under rules prescribed by the Secretary similar to the rules applicable under paragraphs (1) and (2) of section 50B(g), was struck out.

Subsec. (b). Pub. L. 98–369, §474(r)(10)(A), redesignated subsec. (c) as (b). Former subsec. (b) redesignated (a).

Subsec. (b)(1), (2)(A). Pub. L. 98–369, §474(r)(10)(C), substituted "29" for "44H".

Subsec. (b)(3). Pub. L. 98–369, §474(r)(10)(D), substituted "section 30(f)(5)" for "section 44F(f)(5)", "section 30(f)(1)(B)" for "section 44F(f)(1)(B)", and "section 30(f)(1)" for "section 44F(f)(1)".

Subsec. (c). Pub. L. 98–369, §474(r)(10)(A), redesignated subsec. (c) as (b).

1983-Pub. L. 97–414, §4(b)(2)(A), substituted "Certain expenses for which credits are allowable" for "Portion of wages for which credit is claimed under section 40 or 44B" in section catchline.

Subsec. (c). Pub. L. 97–414, §4(b)(1), added subsec. (c).

1978-Pub. L. 95–600, as amended by Pub. L. 96–178 and Pub. L. 96–222, substituted "section 40 or 44B" for "section 44B" in section catchline, and in text designated existing provisions as subsec. (b) and added subsec. (a).

Effective Date of 1993 Amendment

Amendment by section 13322(c)(1) of Pub. L. 103–66 applicable to wages paid or incurred after Dec. 31, 1993, see section 13322(f) of Pub. L. 103–66, set out as a note under section 38 of this title.

Effective Date of 1989 Amendment

Amendment by section 7110(c)(1) of Pub. L. 101–239 applicable to taxable years beginning after Dec. 31, 1989, see section 7110(e) of Pub. L. 101–239, set out as a note under section 41 of this title.

Amendment by section 7814(e)(2)(A) of Pub. L. 101–239 effective, except as otherwise provided, as if included in the provision of the Technical and Miscellaneous Revenue Act of 1988, Pub. L. 100–647, to which such amendment relates, see section 7817 of Pub. L. 101–239, set out as a note under section 1 of this title.

Effective Date of 1988 Amendment

Amendment by Pub. L. 100–647 applicable to taxable years beginning after Dec. 31, 1988, see section 4008(d) of Pub. L. 100–647, set out as a note under section 41 of this title.

Effective Date of 1986 Amendment

Amendment by section 231(d)(3)(E) of Pub. L. 99–514 applicable to taxable years beginning after Dec. 31, 1985, see section 231(g) of Pub. L. 99–514, set out as a note under section 41 of this title.

Amendment by section 1847(b)(8) of Pub. L. 99–514 effective, except as otherwise provided, as if included in the provisions of the Tax Reform Act of 1984, Pub. L. 98–369, div. A, to which such amendment relates, see section 1881 of Pub. L. 99–514, set out as a note under section 48 of this title.

Effective Date of 1984 Amendment

Amendment by Pub. L. 98–369 applicable to taxable years beginning after Dec. 31, 1983, and to carrybacks from such years, see section 475(a) of Pub. L. 98–369, set out as a note under section 21 of this title.

Effective Date of 1983 Amendment

Amendment by Pub. L. 97–414 applicable to amounts paid or incurred after December 31, 1982, in taxable years ending after such date, see section 4(d) of Pub. L. 97–414, set out as an Effective Date note under section 28 of this title.

Effective Date of 1978 Amendment

Section 322(e) of Pub. L. 95–600, as amended by Pub. L. 96–178, §6(a), (b), Jan. 2, 1980, 93 Stat. 1297 ; Pub. L. 96–222, title I, §103(a)(7)(A), (B), Apr. 1, 1980, 94 Stat. 211 ; Pub. L. 99–514, §2, Oct. 22, 1986, 100 Stat. 2095 , provided that:

"(1) In general.-Except as otherwise provided in this subsection, the amendments made by this section [amending this section and sections 50A and 50B of this title] shall apply to work incentive program expenses paid or incurred after December 31, 1978, in taxable years ending after such date; except that so much of the amendment made by subsection (a) as affects section 50A(a)(2) of the Internal Revenue Code of 1986 [formerly I.R.C. 1954] shall apply to taxable years beginning after December 31, 1978. For purposes of applying section 50A(a)(2) of the Internal Revenue Code of 1986 with respect to a taxable year beginning before January 1, 1979, the rules of sections 50A(a)(4), 50A(a)(5), and 50B(e)(3) of such Code (as in effect on the day before the date of the enactment of this Act [Nov. 6, 1978] shall apply.

"(2) Special rules for certain eligible employees.-

"(A) Eligible employees hired before september 27, 1978.-In the case of any eligible employee (as defined in section 50B(h)) hired before September 27, 1978, no credit shall be allowed under section 40 with respect to second-year work incentive program expenses (as defined in section 50B(a)) attributable to service performed by such employee.

"(B) Eligible employees hired after september 26, 1978.-In the case of any eligible employee (as defined in section 50B(h)) hired after September 26, 1978, for purposes of applying the amendments made by this section, such individual shall be treated for purposes of the credit allowed by section 40 as having first begun work for the taxpayer not earlier than January 1, 1979, and any wages paid or incurred after December 31, 1978, with respect to such individual shall be considered to be attributable to services rendered after that date."

[Section 6(d) of Pub. L. 96–178 provided that: "Any amendment made by this section to the Revenue Act of 1978 [amending section 322(e)(1) and (2) of Pub. L. 95–600, set out above] shall take effect as if it had been included in the provision of the Revenue Act of 1978 [Pub. L. 95–600] to which such amendment relates."]

Effective Date

Section applicable to taxable years beginning after Dec. 31, 1976, and to credit carrybacks from such years, see section 202(e) of Pub. L. 95–30, set out as a note under section 51 of this title.

Time and Form of Certain Elections Under Subsection (c)(3)

Section 7814(e)(2)(B) of Pub. L. 101–239 provided that: "In the case of a taxable year for which the last date for making the election under section 280C(c)(3) of the Internal Revenue Code of 1986 (as added by subparagraph (A)) is on or before the date which is 75 days after the date of the enactment of this Act [Dec. 19, 1989], such an election for such year may be made-

"(i) at any time before the date which is 75 days after such date of enactment, and

"(ii) in such form and manner as the Secretary of the Treasury or his delegate may prescribe."

Plan Amendments Not Required Until January 1, 1989

For provisions directing that if any amendments made by subtitle A or subtitle C of title XI [§§1101–1147 and 1171–1177] or title XVIII [§§1800–1899A] of Pub. L. 99–514 require an amendment to any plan, such plan amendment shall not be required to be made before the first plan year beginning on or after Jan. 1, 1989, see section 1140 of Pub. L. 99–514, as amended, set out as a note under section 401 of this title.

Section Referred to in Other Sections

This section is referred to in section 196 of this title.

¹ So in original.