26 U.S.C. § 1401
(b) Hospital insurance
(2) Additional tax
(A) In general In addition to the tax imposed by paragraph (1) and the preceding subsection, there is hereby imposed on every taxpayer (other than a corporation, estate, or trust) for each taxable year beginning after , a tax equal to 0.9 percent of the self-employment income for such taxable year which is in excess of—
(Aug. 16, 1954, ch. 736, 68A Stat. 353; Sept. 1, 1954, ch. 1206, title II, § 208(a), 68 Stat. 1093; Aug. 1, 1956, ch. 836, title II, § 202(a), 70 Stat. 845; Pub. L. 85–840, title IV, § 401(a), , 72 Stat. 1041; Pub. L. 87–64, title II, § 201(a), , 75 Stat. 140; Pub. L. 89–97, title I, § 111(c)(4), title III, § 321(a), , 79 Stat. 342, 394; Pub. L. 90–248, title I, § 109(a)(1), (b)(1), , 81 Stat. 835, 836; Pub. L. 92–336, title II, § 204 (a)(1), (b)(1), , 86 Stat. 420, 421; Pub. L. 92–603, title I, § 135(a)(1), (b)(1), , 86 Stat. 1362, 1363; Pub. L. 93–233, § 6(b)(1), , 87 Stat. 955; Pub. L. 94–455, title XIX, § 1901(a)(154), , 90 Stat. 1789; Pub. L. 95–216, title I, § 101(a)(3), (b)(3), title III, § 317(b)(1), , 91 Stat. 1511, 1512, 1539; Pub. L. 98–21, title I, § 124(a), (b), , 97 Stat. 89; Pub. L. 101–508, title XI, § 11801(a)(36), (c)(16), , 104 Stat. 1388–521, 1388–527; Pub. L. 108–203, title IV, § 415, , 118 Stat. 530; Pub. L. 111–148, title IX, § 9015(b)(1), title X, § 10906(b), , 124 Stat. 871, 1020; Pub. L. 111–152, title I, § 1402(b)(1)(B), , 124 Stat. 1063.)
Section 233 of the Social Security Act, referred to in subsec. (c), is classified to section 433 of Title 42, The Public Health and Welfare.
2010—Subsec. (b). Pub. L. 111–148, § 9015(b)(1), designated existing provisions as par. (1), inserted heading, and added par. (2).
Subsec. (b)(2)(A). Pub. L. 111–152, § 1402(b)(1)(B)(i), added cl. (ii) and redesignated former cl. (ii) as (iii).
Pub. L. 111–148, § 10906(b), substituted “0.9 percent” for “0.5 percent” in introductory provisions.
Subsec. (b)(2)(B). Pub. L. 111–152, § 1402(b)(1)(B)(ii), substituted “under clause (i), (ii), or (iii) (whichever is applicable)” for “under clauses (i) and (ii)”.
2004—Subsec. (c). Pub. L. 108–203 substituted “exclusively to the laws applicable to” for “to taxes or contributions for similar purposes under”.
1990—Subsecs. (c), (d). Pub. L. 101–508 redesignated subsec. (d) as (c) and struck out former subsec. (c) which provided a credit against self-employment taxes imposed by this section.
1983—Subsec. (a). Pub. L. 98–21, § 124(a), amended subsec. (a) generally, substituting a table for former pars. (1) to (7) which had imposed a tax on the self-employment income of every individual (1) in the case of any taxable year beginning before , to be equal to 7.0 percent of the amount of the self-employment income for such taxable year; (2) in the case of any taxable year beginning after , and before , to be equal to 7.10 percent of the amount of the self-employment income for such taxable year; (3) in the case of any taxable year beginning after , and before , to be equal to 7.05 percent of the amount of the self-employment income for such taxable year; (4) in the case of any taxable year beginning after , and before , to be equal to 8.00 percent of the amount of the self-employment income for such taxable year; (5) in the case of any taxable year beginning after , and before , to be equal to 8.05 percent of the amount of the self-employment income for such taxable year; (6) in the case of any taxable year beginning after , and before , to be equal to 8.55 percent of the amount of the self-employment income for such taxable year; and (7) in the case of any taxable year beginning after , to be equal to 9.30 percent of the amount of the self-employment income for such taxable year.
Subsec. (b). Pub. L. 98–21, § 124(a), amended subsec. (b) generally, substituting a table for former pars. (1) to (6) which had imposed a tax on the self-employment income of every individual (1) in the case of any taxable year beginning after , and before , to be equal to 0.90 percent of the amount of the self-employment income for such taxable year; (2) in the case of any taxable year beginning after , and before , to be equal to 1.00 percent of the amount of the self-employment income for such taxable year; (3) in the case of any taxable year beginning after , and before , to be equal to 1.05 percent of the amount of the self-employment income for such taxable year; (4) in the case of any taxable year beginning after , and before , to be equal to 1.30 percent of the amount of the self-employment income for such taxable year; (5) in the case of any taxable year beginning after , and before , to be equal to 1.35 percent of the amount of the self-employment income for such taxable year; and (6) in the case of any taxable year beginning after , to be equal to 1.45 percent of the amount of the self-employment income for such taxable year.
Subsecs. (c), (d). Pub. L. 98–21, § 124(b), added subsec. (c) and redesignated former subsec. (c) as (d).
1977—Subsec. (a). Pub. L. 95–216, § 101(a)(3), substituted provisions calling for a graduated increase in the tax from 7.0 percent for taxable years beginning before , to 9.30 percent for taxable years beginning after , for provisions under which the tax had been set at 7.0 percent without any increase in the rate in future years.
Subsec. (b). Pub. L. 95–216, § 101(b)(3), substituted “after , and before ” for “after , and before ” and “1.00 percent” for “1.10 percent” in par. (2), substituted “after , and before ” for “after , and before ” and “1.05 percent” for “1.35 percent” in par. (3), substituted “after , and before ” for “after ” and “1.30 percent” for “1.50 percent” in par. (4), and added pars. (5) and (6).
Subsec. (c). Pub. L. 95–216, § 317(b)(1), added subsec. (c).
1976—Subsec. (a). Pub. L. 94–455, § 1901(a)(154)(A), among other changes, substituted provisions relating to a uniform tax rate of 7 percent on self-employment income of every individual for provisions relating to varied tax rate of 5.8 percent of the amount of self-employment income for any taxable year beginning after , and before , 6.3 percent for any taxable year beginning after , and before , 6.9 percent for any taxable year beginning after , and before , and 7.0 percent for any taxable year beginning after .
Subsec. (b). Pub. L. 94–455, § 1901(a)(154)(B), redesignated pars. (3) to (6) as (1) to (4). Former pars. (1) and (2), which related to a 6 percent tax rate on self-employment income for any taxable year beginning after , and before , and 1 percent tax rate on self-employment income for any taxable year beginning after , and before , were struck out.
1973—Subsec. (b)(2). Pub. L. 93–233 substituted “1974” for “1978”.
Subsec. (b)(3). Pub. L. 93–233 substituted “1973” and “1978” for “1977” and “1981” and decreased the rate of tax from 1.25 percent to 0.90 percent.
Subsec. (b)(4). Pub. L. 93–233 substituted “1977” and “1981” for “1980” and “1986” and decreased the rate of tax from 1.35 percent to 1.10 percent.
Subsec. (b)(5). Pub. L. 93–233 substituted “beginning after , and before ” for “beginning after ” and decreased the rate of tax from 1.45 percent to 1.35 percent.
Subsec. (b)(6). Pub. L. 93–233 added par. (6).
1972—Subsec. (a)(3). Pub. L. 92–603, § 135(a)(1)(A), substituted “1973” for “1978”.
Subsec. (a)(4). Pub. L. 92–603, § 135(a)(1)(B), substituted provisions that in the case of taxable years beginning after , the tax shall be equal to 7.0 percent of the amount of the self-employment income for such taxable year, for provisions that in the case of taxable years beginning after , and before , the tax shall be equal to 6.7 percent of the amount of the self-employment income for such taxable year.
Subsec. (a)(5). Pub. L. 92–603, § 135(a)(1)(B), struck out par. (5) which provided that in the case of taxable years beginning after , the tax shall be equal to 7.0 percent of the amount of the self-employment income for the taxable year.
Subsec. (a)(3) to (5). Pub. L. 92–336, § 204(a)(1), substituted “” for “” and struck out “and” after “such taxable year” in par. (3), extended from any taxable year beginning after to any taxable year beginning after , and before , and decreased from 7.0 percent to 6.7 percent the provisions relating to the tax on self-employment income in par. (4), and added par. (5).
Subsec. (b)(2). Pub. L. 92–603, § 135(b)(1), increased the rate of tax from 0.9 percent to 1.0 percent.
Subsec. (b)(3). Pub. L. 92–603, § 135(b)(1), substituted “1981” for “1986” and “1.25” for “1.0”.
Subsec. (b)(4). Pub. L. 92–603, § 135(b)(1), substituted “1980” for “1985”, “1986” for “1993”, and “1.35” for “1.1”.
Subsec. (b)(5). Pub. L. 92–603, § 135(b)(1), substituted “1985” for “1992” and “1.45” for “1.2”.
Subsec. (b)(2) to (5). Pub. L. 92–336, § 204(b)(1), substituted “1978” for “1976” and “0.9” for “0.65” in subsec. (b)(2), “1977” for “1975”, “1986” for “1980” and “1.0” for “0.70” in par. (3), “1985” for “1979”, “1993” for “1987” and “1.1” for “0.80” in par. (4), and “1992” for “1986” and “1.2” for “0.90” in par. (5).
1968—Subsecs. (a)(1) to (4). Pub. L. 90–248, § 109(a)(1), substituted “” and “” for “” and “” in par. (1), “”, “” and “6.3” for “”, “”, and “5.9” in par. (2), and “” and “6.9” for “” and “6.6” in par. (3), and reenacted par. (4) without change.
Subsec. (b)(1) to (5). Pub. L. 90–248, § 109(b)(1), struck out par. (1) provision for rate of 0.35 percent of amount of self-employment income for any taxable year beginning after , and before , redesignated former pars. (2) to (6) as (1) to (5), substituted “” for “” in such par. (1) and increased the rate by 0.10 percent to 0.60, 0.65, 0.70, 0.80, and 0.90 in pars. (1) to (5), respectively.
1965—Pub. L. 89–97, § 321(a), divided the total tax imposed under the entire section for each taxable year upon the self-employment income for such taxable year into two separate taxes by dividing the section into subsecs. (a) and (b), with subsec. (a) reflecting the tax for old-age, survivors, and disability insurance and subsec. (b) reflecting a separate tax for hospital insurance; reduced from 6.2 percent to 6.15 percent the rate of total tax imposed under the entire section for taxable years beginning after , and before (resulting from a tax of 5.8 percent under subsec. (a) and 0.35 percent under subsec. (b)), increased from 6.2 percent to 6.4 percent the rate for taxable years beginning after , and before (resulting from a tax of 5.9 percent under subsec. (a) and 0.50 percent under subsec. (b)), reduced from 6.9 percent to 6.4 percent the rate for taxable years beginning after , and before (resulting from a tax of 5.9 percent under subsec. (a) and 0.50 percent under subsec. (b)), increased from 6.9 percent to 7.1 percent the rate for taxable years beginning after , and before (resulting from a tax of 6.6 percent under subsec. (a) and 0.50 percent under subsec. (b)), from 6.9 percent to 7.55 percent the rate for taxable years beginning after , and before (resulting from a tax of 7.0 percent under subsec. (a) and 0.55 percent under subsec. (b)), from 6.9 percent to 7.60 percent the rate for taxable years beginning after , and before (resulting from a tax of 7.0 percent under subsec. (a) and 0.60 percent under subsec. (b)), from 6.9 percent to 7.70 percent the rate for taxable years beginning after , and before (resulting from a tax of 7.0 percent under subsec. (a) and 0.70 percent under subsec. (b)), and from 6.9 percent to 7.80 percent the rate for taxable years beginning after (resulting from a tax of 7.0 percent under subsec. (a) and 0.80 percent under subsec. (b)), and provided that the exclusion of employee representatives by section 1402(c)(3) should not apply for purposes of the tax imposed by subsec. (b).
Subsec. (b). Pub. L. 89–97, § 111(c)(4), struck out provision that for purposes of the tax imposed by this subsection, the exclusion of employee representatives by section 1402(c)(3) shall not apply.
1961—Pub. L. 87–64 increased the rate of tax for taxable years beginning after , and before , from 4½ to 4.7 percent, taxable years beginning after , and before , from 5¼ to 5.4 percent, taxable years beginning after , and before , from 6 to 6.2 percent, taxable year beginning after , and before , from 6 to 6.9 percent, and taxable years beginning after , from 6¾ to 6.9 percent.
1958—Pub. L. 85–840 increased the rate of tax by substituting provisions imposing a tax of 3¾ percent for taxable years beginning after , 4½ percent for years beginning after , 5¼ percent for years beginning after , 6 percent for years beginning after , and 6¾ percent for years beginning after , for provisions which imposed a tax of 3⅜ percent for taxable years beginning after , 4⅛ percent for years beginning after , 4⅞ percent for years beginning after , 5⅝ percent for years beginning after , and 6⅜ percent for years beginning after .
1956—Act , increased the rate of tax for all taxable years beginning after , by three-eighths percent.
1954—Act , increased the 4⅞ percent rate of tax on self-employment income for taxable years beginning after , to 5¼ percent for taxable years beginning after , and before , and 6 percent for taxable years beginning after .
Pub. L. 111–152, title I, § 1402(b)(3), , 124 Stat. 1063, provided that:
“The amendments made by this subsection [amending this section and sections 3101 and 6654 of this title] shall apply with respect to remuneration received, and taxable years beginning after,
December 31, 2012.”
Amendment by section 9015(b)(1) of Pub. L. 111–148 applicable with respect to remuneration received, and taxable years beginning, after , see section 9015(c) of Pub. L. 111–148, set out as a note under section 164 of this title.
Pub. L. 111–148, title X, § 10906(c), , 124 Stat. 1020, provided that:
“The amendments made by this section [amending this section and
section 3101 of this title] shall apply with respect to remuneration received, and taxable years beginning, after
December 31, 2012.”
Pub. L. 98–21, title I, § 124(d), , 97 Stat. 91, provided that:
- “(1) In general.— Except as provided in paragraph (2), the amendments made by this section [amending this section, sections 32, 164, 275, 401, and 1402 of this title, and section 411 of Title 42, The Public Health and Welfare] shall apply to taxable years beginning after .
- “(2) Subsection (c).— The amendments made by subsection (c) [amending sections 32, 164, 275, 401, and 1402 of this title and section 411 of Title 42] shall apply to taxable years beginning after .”
Pub. L. 95–216, title I, § 104, , 91 Stat. 1514, provided that:
“The amendments made by this title [amending this section, sections 3101 and 3111 of this title, and sections 401, 415, and 430 of Title 42, The Public Health and Welfare] shall apply with respect to remuneration paid or received, and taxable years beginning, after 1977.”
Amendment by Pub. L. 94–455 effective for taxable years beginning after , see section 1901(d) set out as a note under section 2 of this title.
Pub. L. 93–233, § 6(c), , 87 Stat. 955, provided that:
“The amendment made by subsection (b)(1) [amending this section] shall apply only with respect to taxable years beginning after
December 31, 1973. The remaining amendments made by this section [amending sections 3101 and 3111 of this title] shall apply only with respect to remuneration paid after
December 31, 1973.”
Pub. L. 92–603, title I, § 135(c), , 86 Stat. 1364, provided that:
“The amendments made by subsections (a)(1) and (b)(1) [amending this section] shall apply only with respect to taxable years beginning after
December 31, 1972. The remaining amendments made by this section [amending sections 3101 and 3111 of this title] shall apply only with respect to remuneration paid after
December 31, 1972.”
Pub. L. 92–336, title II, § 204(c), , 86 Stat. 1377, provided that:
“The amendments made by subsections (a)(1) and (b)(1) [amending this section] shall apply only with respect to taxable years beginning after
December 31, 1972. The remaining amendments made by this section [amending sections 3101 and 3111 of this title] shall apply only with respect to remuneration paid after
December 31, 1972.”
Pub. L. 90–248, title I, § 109(c), , 81 Stat. 837, provided that:
“The amendments made by subsections (a)(1) and (b)(1) [amending this section] shall apply only with respect to taxable years beginning after
December 31, 1967. The remaining amendments made by this section [amending sections 3101 and 3111 of this title] shall apply only with respect to remuneration paid after
December 31, 1967.”
Amendment by section 111(c)(4) of Pub. L. 89–97 applicable to calendar year 1966 or to any subsequent calendar year but only if by October 1 immediately preceding such calendar year the Railroad Retirement Tax Act [section 3201 et seq. of this title] provides for a maximum amount of monthly compensation taxable under such Act during all months of such calendar year equal to one-twelfth of maximum wages which Federal Insurance Contributions Act [section 3101 et seq. of this title] provides may be counted for such calendar year, see section 111(e) of Pub. L. 89–97, set out as an Effective Date note under section 1395i–1 of Title 42, The Public Health and Welfare.
Pub. L. 89–97, title III, § 321(d), , 79 Stat. 396, provided that:
“The amendments made by subsection (a) [amending this section] shall apply only with respect to taxable years beginning after
December 31, 1965. The amendments made by subsections (b) and (c) [amending sections 3101 and 3111 of this title] shall apply only with respect to remuneration paid after
December 31, 1965.”
Pub. L. 87–64, title II, § 201(d), , 75 Stat. 141, provided that:
“The amendment made by subsection (a) [amending this section] shall apply with respect to taxable years beginning after
December 31, 1961. The amendments made by subsections (b) and (c) [amending sections 3101 and 3111 of this title] shall apply with respect to remuneration paid after
December 31, 1961.”
Pub. L. 85–840, title IV, § 401(d), , 72 Stat. 1042, provided that:
“The amendment made by subsection (a) [amending this section] shall apply with respect to taxable years beginning after
December 31, 1958. The amendments made by subsections (b) and (c) [amending sections 3101 and 3111 of this title] shall apply with respect to remuneration paid after
December 31, 1958.”
Act Aug. 1, 1956, ch. 836, title II, § 202(d), 70 Stat. 846, provided that:
“The amendment made by subsection (a) [amending this section] shall apply with respect to taxable years beginning after
December 31, 1956. The amendments made by subsections (b) and (c) [amending sections 3101 and 3111 of this title] shall apply with respect to remuneration paid after
December 31, 1956.”
For provisions that nothing in amendment by Pub. L. 101–508 be construed to affect treatment of certain transactions occurring, property acquired, or items of income, loss, deduction, or credit taken into account prior to , for purposes of determining liability for tax for periods ending after , see section 11821(b) of Pub. L. 101–508, set out as a note under section 45K of this title.
Pub. L. 111–312, title VI, § 601, , 124 Stat. 3309, as amended by Pub. L. 112–78, title I, § 101(a)–(d), , 125 Stat. 1281, 1282; Pub. L. 112–96, title I, § 1001(a), (b), , 126 Stat. 158, provided that:
“(a) In General.— Notwithstanding any other provision of law—
- “(1) with respect to any taxable year which begins in the payroll tax holiday period, the rate of tax under section 1401(a) of the Internal Revenue Code of 1986 shall be 10.40 percent, and
- “(2) with respect to remuneration received during the payroll tax holiday period, the rate of tax under 3101(a) of such Code shall be 4.2 percent (including for purposes of determining the applicable percentage under sections 3201(a) and 3211(a)(1) [probably means 3211(a)] of such Code).
“(b) Coordination With Deductions for Employment Taxes.—
- “(1) Deduction in computing net earnings from self-employment.— For purposes of applying section 1402(a)(12) of the Internal Revenue Code of 1986, the rate of tax imposed by subsection 1401(a) of such Code shall be determined without regard to the reduction in such rate under this section.
“(2) Individual deduction.— In the case of the taxes imposed by section 1401 of such Code for any taxable year which begins in the payroll tax holiday period, the deduction under section 164(f) of such Code with respect to such taxes shall be equal to the sum of—
- “(A) 59.6 percent of the portion of such taxes attributable to the tax imposed by section 1401(a) of such Code (determined after the application of this section), plus
- “(B) one-half of the portion of such taxes attributable to the tax imposed by section 1401(b) of such Code.
- “(c) Payroll Tax Holiday Period.— The term ‘payroll tax holiday period’ means calendar years 2011 and 2012.
- “(d) Employer Notification.— The Secretary of the Treasury shall notify employers of the payroll tax holiday period in any manner the Secretary deems appropriate.
“(e) Transfers of Funds.—
- “(1) Transfers to federal old-age and survivors insurance trust fund.— There are hereby appropriated to the Federal Old-Age and Survivors Trust Fund and the Federal Disability Insurance Trust Fund established under section 201 of the Social Security Act (42 U.S.C. 401) amounts equal to the reduction in revenues to the Treasury by reason of the application of subsection (a). Amounts appropriated by the preceding sentence shall be transferred from the general fund at such times and in such manner as to replicate to the extent possible the transfers which would have occurred to such Trust Fund had such amendments not been enacted.
- “(2) Transfers to social security equivalent benefit account.— There are hereby appropriated to the Social Security Equivalent Benefit Account established under section 15A(a) of the Railroad Retirement Act of 1974 (45 U.S.C. 231n–1(a)) amounts equal to the reduction in revenues to the Treasury by reason of the application of subsection (a)(2). Amounts appropriated by the preceding sentence shall be transferred from the general fund at such times and in such manner as to replicate to the extent possible the transfers which would have occurred to such Account had such amendments not been enacted.
- “(3) Coordination with other federal laws.— For purposes of applying any provision of Federal law other than the provisions of the Internal Revenue Code of 1986, the rate of tax in effect under section 3101(a) of such Code shall be determined without regard to the reduction in such rate under this section.”
[Pub. L. 112–96, title I, § 1001(c), , 126 Stat. 159, provided that:
“The amendments made by this section [amending
section 601 of Pub. L. 111–312, set out above] shall apply to remuneration received, and taxable years beginning, after
December 31, 2011.”
]
[Pub. L. 112–78, title I, § 101(e), , 125 Stat. 1282, provided that:
[“(1) In general.—Except as provided in paragraph (2), the amendments made by this section [amending section 601 of Pub. L. 111–312, set out above] shall apply to remuneration received, and taxable years beginning, after .
[“(2) Technical amendments.—The amendments made by subsection (d) [amending section 601(b)(2) of Pub. L. 111–312, set out above] shall take effect as if included in the enactment of section 601 of the Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010 [Pub. L. 111–312].”]
Land diverted from production of agricultural commodities under a 1983 payment-in-kind program to be treated, for purposes of this chapter, as used during the 1983 crop year by qualified taxpayers in the active conduct of the trade or business of farming, with qualified taxpayers who materially participate in the diversion and devotion to conservation uses under a 1983 payment-in-kind program to be treated as materially participating in the operation of such land during the 1983 crop year, see section 3 of Pub. L. 98–4, set out as a note under section 61 of this title.
Pub. L. 95–216, title III, § 317(b)(4), , 91 Stat. 1540, provided that:
“Notwithstanding any other provision of law, taxes paid by any individual to any foreign country with respect to any period of employment or self-employment which is covered under the social security system of such foreign country in accordance with the terms of an agreement entered into pursuant to section 233 of the Social Security Act [
section 433 of Title 42, The Public Health and Welfare] shall not, under the income tax laws of the United States, be deductible by, or creditable against the income tax of, any such individual.”