26 U.S.C. § 11

Editorial Notes

Amendments

Pub. L. 117–1692022—Subsec. (d). substituted “the taxes imposed by subsection (a) and section 55” for “the tax imposed by subsection (a)”.

Pub. L. 115–97, § 13001(a)2017—Subsec. (b). , amended subsec. (b) generally. Prior to amendment, text read as follows:

In general“(1) .—The amount of the tax imposed by subsection (a) shall be the sum of—

“(A) 15 percent of so much of the taxable income as does not exceed $50,000,

“(B) 25 percent of so much of the taxable income as exceeds $50,000 but does not exceed $75,000,

“(C) 34 percent of so much of the taxable income as exceeds $75,000 but does not exceed $10,000,000, and

“(D) 35 percent of so much of the taxable income as exceeds $10,000,000.

In the case of a corporation which has taxable income in excess of $100,000 for any taxable year, the amount of tax determined under the preceding sentence for such taxable year shall be increased by the lesser of (i) 5 percent of such excess, or (ii) $11,750. In the case of a corporation which has taxable income in excess of $15,000,000, the amount of the tax determined under the foregoing provisions of this paragraph shall be increased by an additional amount equal to the lesser of (i) 3 percent of such excess, or (ii) $100,000.

Certain personal service corporations not eligible for graduated rates“(2) .—Notwithstanding paragraph (1), the amount of the tax imposed by subsection (a) on the taxable income of a qualified personal service corporation (as defined in section 448(d)(2)) shall be equal to 35 percent of the taxable income.”

Pub. L. 115–97, § 12001(b)(11)Subsec. (d). , substituted “the tax imposed by subsection (a)” for “the taxes imposed by subsection (a) and section 55”.

Pub. L. 103–66, § 13221(a)(3)1993—Subsec. (b)(1). , inserted at end of closing provisions “In the case of a corporation which has taxable income in excess of $15,000,000, the amount of the tax determined under the foregoing provisions of this paragraph shall be increased by an additional amount equal to the lesser of (i) 3 percent of such excess, or (ii) $100,000.”

Pub. L. 103–66, § 13221(a)(1)Subsec. (b)(1)(C), (D). , (2), added subpars. (C) and (D) and struck out former subpar. (C) which read as follows: “34 percent of so much of the taxable income as exceeds $75,000.”

Pub. L. 103–66, § 13221(b)Subsec. (b)(2). , substituted “35 percent” for “34 percent”.

Pub. L. 100–6471988—Subsec. (d). substituted “the taxes imposed by subsection (a) and section 55” for “the tax imposed by subsection (a)”.

Pub. L. 100–2031987—Subsec. (b). amended subsec. (b) generally. Prior to amendment, subsec. (b) read as follows: “The amount of the tax imposed by subsection (a) shall be the sum of—

“(1) 15 percent of so much of the taxable income as does not exceed $50,000,

“(2) 25 percent of so much of the taxable income as exceeds $50,000 but does not exceed $75,000, and

“(3) 34 percent of so much of the taxable income as exceeds $75,000.

In the case of a corporation which has taxable income in excess of $100,000 for any taxable year, the amount of tax determined under the preceding sentence for such taxable year shall be increased by the lesser of (A) 5 percent of such excess, or (B) $11,750.”

Pub. L. 99–5141986—Subsec. (b). amended subsec. (b) generally. Prior to amendment, subsec. (b) read as follows: “The amount of the tax imposed by subsection (a) shall be the sum of—

“(1) 15 percent (16 percent for taxable years beginning in 1982) of so much of the taxable income as does not exceed $25,000;

“(2) 18 percent (19 percent for taxable years beginning in 1982) of so much of the taxable income as exceeds $25,000 but does not exceed $50,000;

“(3) 30 percent of so much of the taxable income as exceeds $50,000 but does not exceed $75,000;

“(4) 40 percent of so much of the taxable income as exceeds $75,000 but does not exceed $100,000; plus

“(5) 46 percent of so much of the taxable income as exceeds $100,000.

In the case of a corporation with taxable income in excess of $1,000,000 for any taxable year, the amount of tax determined under the preceding sentence for such taxable year shall be increased by the lesser of (A) 5 percent of such excess, or (B) $20,250.”

Pub. L. 98–3691984—Subsec. (b). inserted “In the case of a corporation with taxable income in excess of $1,000,000 for any taxable year, the amount of tax determined under the preceding sentence for such taxable year shall be increased by the lesser of (A) 5 percent of such excess, or (B) $20,250.”

Pub. L. 97–34, § 231(a)(1)1981—Subsec. (b)(1). , substituted “15 percent (16 percent for taxable years beginning in 1982)” for “17 percent”.

Pub. L. 97–34, § 231(a)(2)Subsec. (b)(2). , substituted “18 percent (19 percent for taxable years beginning in 1982)” for “20 percent”.

Pub. L. 95–6001978— reduced corporate tax rates by substituting provisions imposing a five-step tax rate structure on corporate taxable income for provisions using a normal tax and surtax approach to the taxation of corporate taxable income.

Pub. L. 95–30, § 201(1)December 31, 1978December 31, 19771977—Subsec. (b)(1). , substituted “” for “”.

Pub. L. 95–30, § 201(1)January 1, 1979January 1, 1978Subsec. (b)(2). , substituted “” for “” in provisions preceding subpar. (A).

Pub. L. 95–30, § 201(2)December 31, 1978December 31, 1977Subsec. (d)(1). , substituted “” for “”.

Pub. L. 95–30, § 201(2)January 1, 1979January 1, 1978Subsec. (d)(2). , substituted “” for “”.

Pub. L. 94–4551976—Subsec. (a). reenacted subsec. (a) without change.

Pub. L. 94–455December 31, 1977December 31, 1976December 31, 1974January 1, 1978December 31, 1974January 1, 1977Subsec. (b). , among other changes, substituted “, 22 percent” for “, 22 percent” and “after and before ” for “after and before ” and struck out provisions relating to the six-month application of the general rule.

Pub. L. 94–455Subsec. (c). struck out provisions relating to the special rule for 1976 for calendar year taxpayers.

Pub. L. 94–455Dec. 31, 1977Dec. 31, 1974Jan. 1, 1978Subsec. (d). , among other changes, substituted provisions relating to surtax exemption of $25,000 for a taxable year ending , or $50,000 for a taxable year ending after , and before , for provisions relating to surtax exemption of $50,000 for any taxable year and struck out provisions relating to six-month application of the general rule.

Pub. L. 94–164December 31, 1976January 1, 1975December 31, 1975January 1, 1977January 1, 19761975—Subsec. (b). redesignated existing pars. (1) and (2) as pars. (1)(A) and (1)(B), and in par. (1)(A) as so redesignated substituted “after ” for “before or after ”, and in par. (1)(B) as so redesignated substituted “” for “”, and added par. (2).

Pub. L. 94–12, § 303(a)Dec. 31, 1974Jan. 1, 1976, reduced the normal tax for a taxable year ending after , and before , to 20 percent of so much of the taxable income as does not exceed $25,000 plus 22 percent of so much of the taxable income as exceeds $25,000.

Pub. L. 94–164Jan. 1, 1964Dec. 31, 1963Jan. 1, 1965Subsec. (c). designated existing provisions as par. (1), struck out special percentages for taxable years beginning before , and after and before , and added par. (2).

Pub. L. 94–164section 1564 of this titleSubsec. (d). designated existing provisions as par. (1), substituted “$50,000” for “$25,000”, inserted reference to , and added par. (2).

Pub. L. 94–12, § 303(b), substituted “$50,000” for “$25,000”.

Pub. L. 91–1721969—Subsec. (d). substituted “section 1561 or 1564” for “section 1561”.

Pub. L. 89–809, § 104(b)(2)(A)1966—Subsec. (e)(4). , struck out par. (4) which made reference to section 881(a) (relating to foreign corporations not engaged in business in United States).

Pub. L. 89–809, § 104(b)(2)(B)Subsec. (f). , added subsec. (f).

Pub. L. 88–272Jan. 1, 1964July 1, 1964Dec. 31, 1963June 30, 19641964—Subsec. (b). applied the 30 percent tax to years beginning before instead of in par. (1), and in par. (2), reduced the rate from 25 percent to 22 percent, and applied it to years beginning after , instead of .

Pub. L. 88–272Dec. 31, 1963Jan. 1, 1965Dec. 31, 1964Subsec. (c). increased the percentage from 22 to 28 for taxable years beginning after , and before , and to 26 percent for taxable years beginning after . The surtax exemption previously carried in subsec. (c), is now stated in subsec. (d).

Pub. L. 88–272Subsecs. (d), (e). added subsec. (d) and redesignated former subsec. (d) as (e).

Pub. L. 88–52July 1, 1964July 1, 1963June 30, 1964June 30, 19631963—Subsec. (b). substituted “” for “” and “” for “” wherever appearing.

Pub. L. 87–508July 1, 1963July 1, 1962June 30, 1963June 30, 19621962—Subsec. (b). substituted “” for “” and “” for “” wherever appearing.

Pub. L. 87–72July 1, 1962July 1, 1961June 30, 1962June 30, 19611961—Subsec. (b). substituted “” for “” and “” for “” wherever appearing.

Pub. L. 86–564July 1, 1961July 1, 1960June 30, 1961June 30, 19601960—Subsec. (b). substituted “” for “” and “” for “” wherever appearing.

Pub. L. 86–779Subsec. (d)(3). inserted “and real estate investment trusts” after “regulated investment companies”.

Pub. L. 86–75July 1, 1960July 1, 1959June 30, 1960June 30, 19591959—Subsec. (b). substituted “” for “” and “” for “” wherever appearing.

Pub. L. 85–475July 1, 1959July 1, 1958June 30, 1959June 30, 19581958—Subsec. (b). substituted “” for “” and “” for “” wherever appearing.

Pub. L. 85–12July 1, 1958April 1, 1957June 30, 1958March 31, 19571957—Subsec. (b). substituted “” for “” and “” for “” wherever appearing.

Mar. 29, 1956April 1, 1957April 1, 1956March 31, 1957March 31, 19561956—Subsec. (b). Act , substituted “” for “” and “” for “” wherever appearing.

Mar. 30, 1955April 1, 1956April 1, 1955March 31, 1956March 31, 19551955—Subsec. (b). Act , substituted “” for “” and “” for “” wherever appearing.

Statutory Notes and Related Subsidiaries

Effective Date of 2022 Amendment

Pub. L. 117–169, title I, § 10101(f)Aug. 16, 2022136 Stat. 1828

Effective Date of 2017 Amendment

Pub. L. 115–97, title I, § 12001(c)Dec. 22, 2017131 Stat. 2094

Pub. L. 115–97, title I, § 13001(c)Dec. 22, 2017131 Stat. 2098

Effective Date of 1993 Amendment

Pub. L. 103–66, title XIII, § 13221(d)Aug. 10, 1993107 Stat. 477

Effective Date of 1988 Amendment

Pub. L. 100–647Pub. L. 99–514section 1019(a) of Pub. L. 100–647section 1 of this titleAmendment by effective, except as otherwise provided, as if included in the provision of the Tax Reform Act of 1986, , to which such amendment relates, see , set out as a note under .

Effective Date of 1987 Amendment

Pub. L. 100–203, title X, § 10224(b)Dec. 22, 1987101 Stat. 1330–413

Effective Date of 1986 Amendment

Pub. L. 99–514, title VI, § 601(b)Oct. 22, 1986100 Stat. 2249

Effective Date of 1984 Amendment

Pub. L. 98–369, div. A, title I, § 66(c)July 18, 198498 Stat. 585Pub. L. 99–514, § 2Oct. 22, 1986100 Stat. 2095

Effective Date of 1981 Amendment

Pub. L. 97–34, title II, § 231(c)Aug. 13, 198195 Stat. 250

Effective Date of 1978 Amendment

Pub. L. 95–600, title III, § 301(c)Nov. 6, 197892 Stat. 2824

Effective Date of 1976 Amendment

Pub. L. 94–455, title IX, § 901(d)Oct. 4, 197690 Stat. 1607

Effective and Termination Dates of 1975 Amendment

Pub. L. 94–164, § 4(e)Dec. 23, 197589 Stat. 975

Pub. L. 94–12, title III, § 305(b)(1)Mar. 29, 197589 Stat. 45

Effective Date of 1969 Amendment

Pub. L. 91–172Dec. 31, 1969section 401(h)(2) of Pub. L. 91–172section 1561 of this titleAmendment by applicable with respect to taxable years beginning after , see , set out as a note under .

Effective Date of 1966 Amendment

Pub. L. 89–809, title I, § 104(n)Nov. 13, 196680 Stat. 1563

Effective Date of 1964 Amendment

Pub. L. 88–272section 21 of this titleDec. 31, 1963section 131 of Pub. L. 88–272section 1 of this titleAmendment by , except for purposes of , effective with respect to taxable years beginning after , see , set out as a note under .

Effective Date of 1960 Amendment

Pub. L. 86–779Dec. 31, 1960section 10(k) of Pub. L. 86–779section 856 of this titleAmendment by applicable with respect to taxable years of real estate investment trusts beginning after , see , set out as an Effective Date note under .

Allocation of 1975 Taxable Income Among Component Members of Controlled Group of Corporations

Pub. L. 94–12, title III, § 303(c)(1)Mar. 29, 197589 Stat. 44