Definitions
Net earnings from self-employment
The term “net earnings from self-employment” means the gross income derived by an individual from any trade or business carried on by such individual, less the deductions allowed by this subtitle which are attributable to such trade or business, plus his distributive share (whether or not distributed) of income or loss described in section 702(a)(8) from any trade or business carried on by a partnership of which he is a member; except that in computing such gross income and deductions and such distributive share of partnership ordinary income or loss—
there shall be excluded rentals from real estate and from personal property leased with the real estate (including such rentals paid in crop shares, and including payments under section 1233(a)(2) of the Food Security Act of 1985 (16 U.S.C. 3833(a)(2)) to individuals receiving benefits under section 202 or 223 of the Social Security Act) together with the deductions attributable thereto, unless such rentals are received in the course of a trade or business as a real estate dealer; except that the preceding provisions of this paragraph shall not apply to any income derived by the owner or tenant of land if (A) such income is derived under an arrangement, between the owner or tenant and another individual, which provides that such other individual shall produce agricultural or horticultural commodities (including livestock, bees, poultry, and fur-bearing animals and wildlife) on such land, and that there shall be material participation by the owner or tenant (as determined without regard to any activities of an agent of such owner or tenant) in the production or the management of the production of such agricultural or horticultural commodities, and (B) there is material participation by the owner or tenant (as determined without regard to any activities of an agent of such owner or tenant) with respect to any such agricultural or horticultural commodity;
there shall be excluded dividends on any share of stock, and interest on any bond, debenture, note, or certificate, or other evidence of indebtedness, issued with interest coupons or in registered form by any corporation (including one issued by a government or political subdivision thereof), unless such dividends and interest are received in the course of a trade or business as a dealer in stocks or securities;
there shall be excluded any gain or loss—
which is considered as gain or loss from the sale or exchange of a capital asset,
from the cutting of timber, or the disposal of timber, coal, or iron ore, if section 631 applies to such gain or loss, or
from the sale, exchange, involuntary conversion, or other disposition of property if such property is neither—
stock in trade or other property of a kind which would properly be includible in inventory if on hand at the close of the taxable year, nor
property held primarily for sale to customers in the ordinary course of the trade or business;
the deduction for net operating losses provided in section 172 shall not be allowed;
if—
any of the income derived from a trade or business (other than a trade or business carried on by a partnership) is community income under community property laws applicable to such income, the gross income and deductions attributable to such trade or business shall be treated as the gross income and deductions of the spouse carrying on such trade or business or, if such trade or business is jointly operated, treated as the gross income and deductions of each spouse on the basis of their respective distributive share of the gross income and deductions; and
any portion of a partner’s distributive share of the ordinary income or loss from a trade or business carried on by a partnership is community income or loss under the community property laws applicable to such share, all of such distributive share shall be included in computing the net earnings from self-employment of such partner, and no part of such share shall be taken into account in computing the net earnings from self-employment of the spouse of such partner;
a resident of Puerto Rico shall compute his net earnings from self-employment in the same manner as a citizen of the United States but without regard to section 933;
the deduction for personal exemptions provided in section 151 shall not be allowed;
an individual who is a duly ordained, commissioned, or licensed minister of a church or a member of a religious order shall compute his net earnings from self-employment derived from the performance of service described in subsection (c)(4) without regard to section 107 (relating to rental value of parsonages), section 119 (relating to meals and lodging furnished for the convenience of the employer), and section 911 (relating to citizens or residents of the United States living abroad), but shall not include in such net earnings from self-employment the rental value of any parsonage or any parsonage allowance (whether or not excludable under section 107) provided after the individual retires, or any other retirement benefit received by such individual from a church plan (as defined in section 414(e)) after the individual retires;
the exclusion from gross income provided by section 931 shall not apply;
there shall be excluded amounts received by a partner pursuant to a written plan of the partnership, which meets such requirements as are prescribed by the Secretary, and which provides for payments on account of retirement, on a periodic basis, to partners generally or to a class or classes of partners, such payments to continue at least until such partner’s death, if—
such partner rendered no services with respect to any trade or business carried on by such partnership (or its successors) during the taxable year of such partnership (or its successors), ending within or with his taxable year, in which such amounts were received, and
no obligation exists (as of the close of the partnership’s taxable year referred to in subparagraph (A)) from the other partners to such partner except with respect to retirement payments under such plan, and
such partner’s share, if any, of the capital of the partnership has been paid to him in full before the close of the partnership’s taxable year referred to in subparagraph (A);
the exclusion from gross income provided by section 911(a)(1) shall not apply;
in lieu of the deduction provided by section 164(f) (relating to deduction for one-half of self-employment taxes), there shall be allowed a deduction equal to the product of—
the taxpayer’s net earnings from self-employment for the taxable year (determined without regard to this paragraph), and
one-half of the sum of the rates imposed by subsections (a) and (b) of section 1401 for such year (determined without regard to the rate imposed under paragraph (2) of section 1401(b));
there shall be excluded the distributive share of any item of income or loss of a limited partner, as such, other than guaranteed payments described in section 707(c) to that partner for services actually rendered to or on behalf of the partnership to the extent that those payments are established to be in the nature of remuneration for those services;
in the case of church employee income, the special rules of subsection (j)(1) shall apply;
in the case of a member of an Indian tribe, the special rules of section 7873 (relating to income derived by Indians from exercise of fishing rights) shall apply;
the deduction provided by section 199 1 shall not be allowed; and
notwithstanding the preceding provisions of this subsection, each spouse’s share of income or loss from a qualified joint venture shall be taken into account as provided in section 761(f) in determining net earnings from self-employment of such spouse.
If the taxable year of a partner is different from that of the partnership, the distributive share which he is required to include in computing his net earnings from self-employment shall be based on the ordinary income or loss of the partnership for any taxable year of the partnership ending within or with his taxable year. In the case of any trade or business which is carried on by an individual or by a partnership and in which, if such trade or business were carried on exclusively by employees, the major portion of the services would constitute agricultural labor as defined in section 3121(g)—
in the case of an individual, if the gross income derived by him from such trade or business is not more than the upper limit, the net earnings from self-employment derived by him from such trade or business may, at his option, be deemed to be 66⅔ percent of such gross income; or
in the case of an individual, if the gross income derived by him from such trade or business is more than the upper limit and the net earnings from self-employment derived by him from such trade or business (computed under this subsection without regard to this sentence) are less than the lower limit, the net earnings from self-employment derived by him from such trade or business may, at his option, be deemed to be the lower limit; and
in the case of a member of a partnership, if his distributive share of the gross income of the partnership derived from such trade or business (after such gross income has been reduced by the sum of all payments to which section 707(c) applies) is not more than the upper limit, his distributive share of income described in section 702(a)(8) derived from such trade or business may, at his option, be deemed to be an amount equal to 66⅔ percent of his distributive share of such gross income (after such gross income has been so reduced); or
in the case of a member of a partnership, if his distributive share of the gross income of the partnership derived from such trade or business (after such gross income has been reduced by the sum of all payments to which section 707(c) applies) is more than the upper limit and his distributive share (whether or not distributed) of income described in section 702(a)(8) derived from such trade or business (computed under this subsection without regard to this sentence) is less than the lower limit, his distributive share of income described in section 702(a)(8) derived from such trade or business may, at his option, be deemed to be the lower limit.
For purposes of the preceding sentence, gross income means—
in the case of any such trade or business in which the income is computed under a cash receipts and disbursements method, the gross receipts from such trade or business reduced by the cost or other basis of property which was purchased and sold in carrying on such trade or business, adjusted (after such reduction) in accordance with the provisions of paragraphs (1) through (7) and paragraph (9) of this subsection; and
in the case of any such trade or business in which the income is computed under an accrual method, the gross income from such trade or business, adjusted in accordance with the provisions of paragraphs (1) through (7) and paragraph (9) of this subsection;
and, for purposes of such sentence, if an individual (including a member of a partnership) derives gross income from more than one such trade or business, such gross income (including his distributive share of the gross income of any partnership derived from any such trade or business) shall be deemed to have been derived from one trade or business.
The preceding sentence and clauses (i) through (iv) of the second preceding sentence shall also apply in the case of any trade or business (other than a trade or business specified in such second preceding sentence) which is carried on by an individual who is self-employed on a regular basis as defined in subsection (h), or by a partnership of which an individual is a member on a regular basis as defined in subsection (h), but only if such individual’s net earnings from self-employment as determined without regard to this sentence in the taxable year are less than the lower limit and less than 66⅔ percent of the sum (in such taxable year) of such individual’s gross income derived from all trades or businesses carried on by him and his distributive share of the income or loss from all trades or businesses carried on by all the partnerships of which he is a member; except that this sentence shall not apply to more than 5 taxable years in the case of any individual, and in no case in which an individual elects to determine the amount of his net earnings from self-employment for a taxable year under the provisions of the two preceding sentences with respect to a trade or business to which the second preceding sentence applies and with respect to a trade or business to which this sentence applies shall such net earnings for such year exceed the lower limit.
Self-employment income
The term “self-employment income” means the net earnings from self-employment derived by an individual (other than a nonresident alien individual, except as provided by an agreement under section 233 of the Social Security Act) during any taxable year; except that such term shall not include—
in the case of the tax imposed by section 1401(a), that part of the net earnings from self-employment which is in excess of (i) an amount equal to the contribution and benefit base (as determined under section 230 of the Social Security Act) which is effective for the calendar year in which such taxable year begins, minus (ii) the amount of the wages paid to such individual during such taxable years; or
the net earnings from self-employment, if such net earnings for the taxable year are less than $400.
For purposes of paragraph (1), the term “wages” (A) includes such remuneration paid to an employee for services included under an agreement entered into pursuant to the provisions of section 3121(l) (relating to coverage of citizens of the United States who are employees of foreign affiliates of American employers), as would be wages under section 3121(a) if such services constituted employment under section 3121(b), and (B) includes compensation which is subject to the tax imposed by section 3201 or 3211. An individual who is not a citizen of the United States but who is a resident of the Commonwealth of Puerto Rico, the Virgin Islands, Guam, or American Samoa shall not, for purposes of this chapter be considered to be a nonresident alien individual. In the case of church employee income, the special rules of subsection (j)(2) shall apply for purposes of paragraph (2).
Trade or business
The term “trade or business”, when used with reference to self-employment income or net earnings from self-employment, shall have the same meaning as when used in section 162 (relating to trade or business expenses), except that such term shall not include—
the performance of the functions of a public office, other than the functions of a public office of a State or a political subdivision thereof with respect to fees received in any period in which the functions are performed in a position compensated solely on a fee basis and in which such functions are not covered under an agreement entered into by such State and the Commissioner of Social Security pursuant to section 218 of the Social Security Act;
the performance of service by an individual as an employee, other than—
service described in section 3121(b)(14)(B) performed by an individual who has attained the age of 18,
service described in section 3121(b)(16),
service described in section 3121(b)(11), (12), or (15) performed in the United States (as defined in section 3121(e)(2)) by a citizen of the United States, except service which constitutes “employment” under section 3121(y),
service described in paragraph (4) of this subsection,
service performed by an individual as an employee of a State or a political subdivision thereof in a position compensated solely on a fee basis with respect to fees received in any period in which such service is not covered under an agreement entered into by such State and the Commissioner of Social Security pursuant to section 218 of the Social Security Act,
service described in section 3121(b) (20), and
service described in section 3121(b)(8)(B);
the performance of service by an individual as an employee or employee representative as defined in section 3231;
the performance of service by a duly ordained, commissioned, or licensed minister of a church in the exercise of his ministry or by a member of a religious order in the exercise of duties required by such order;
the performance of service by an individual in the exercise of his profession as a Christian Science practitioner; or
the performance of service by an individual during the period for which an exemption under subsection (g) is effective with respect to him.
The provisions of paragraph (4) or (5) shall not apply to service (other than service performed by a member of a religious order who has taken a vow of poverty as a member of such order) performed by an individual unless an exemption under subsection (e) is effective with respect to him.
Employee and wages
Ministers, members of religious orders, and Christian Science practitioners
Exemption
Verification of application
Time for filing application
Effective date of exemption
Partner’s taxable year ending as the result of death
In computing a partner’s net earnings from self-employment for his taxable year which ends as a result of his death (but only if such taxable year ends within, and not with, the taxable year of the partnership), there shall be included so much of the deceased partner’s distributive share of the partnership’s ordinary income or loss for the partnership taxable year as is not attributable to an interest in the partnership during any period beginning on or after the first day of the first calendar month following the month in which such partner died. For purposes of this subsection—
in determining the portion of the distributive share which is attributable to any period specified in the preceding sentence, the ordinary income or loss of the partnership shall be treated as having been realized or sustained ratably over the partnership taxable year; and
the term “deceased partner’s distributive share” includes the share of his estate or of any other person succeeding, by reason of his death, to rights with respect to his partnership interest.
Members of certain religious faiths
Exemption
Any individual may file an application (in such form and manner, and with such official, as may be prescribed by regulations under this chapter) for an exemption from the tax imposed by this chapter if he is a member of a recognized religious sect or division thereof and is an adherent of established tenets or teachings of such sect or division by reason of which he is conscientiously opposed to acceptance of the benefits of any private or public insurance which makes payments in the event of death, disability, old-age, or retirement or makes payments toward the cost of, or provides services for, medical care (including the benefits of any insurance system established by the Social Security Act). Such exemption may be granted only if the application contains or is accompanied by—
such evidence of such individual’s membership in, and adherence to the tenets or teachings of, the sect or division thereof as the Secretary may require for purposes of determining such individual’s compliance with the preceding sentence, and
his waiver of all benefits and other payments under titles II and XVIII of the Social Security Act on the basis of his wages and self-employment income as well as all such benefits and other payments to him on the basis of the wages and self-employment income of any other person,
and only if the Commissioner of Social Security finds that—
such sect or division thereof has the established tenets or teachings referred to in the preceding sentence,
it is the practice, and has been for a period of time which he deems to be substantial, for members of such sect or division thereof to make provision for their dependent members which in his judgment is reasonable in view of their general level of living, and
such sect or division thereof has been in existence at all times since
An exemption may not be granted to any individual if any benefit or other payment referred to in subparagraph (B) became payable (or, but for section 203 or 222(b) of the Social Security Act, would have become payable) at or before the time of the filing of such waiver.
Period for which exemption effective
An exemption granted to any individual pursuant to this subsection shall apply with respect to all taxable years beginning after
beginning (i) before the taxable year in which such individual first met the requirements of the first sentence of paragraph (1), or (ii) before the time as of which the Commissioner of Social Security finds that the sect or division thereof of which such individual is a member met the requirements of subparagraphs (C) and (D), or
ending (i) after the time such individual ceases to meet the requirements of the first sentence of paragraph (1), or (ii) after the time as of which the Commissioner of Social Security finds that the sect or division thereof of which he is a member ceases to meet the requirements of subparagraph (C) or (D).
Subsection to apply to certain church employees
Regular basis
Special rules for options and commodities dealers
In general
Definitions
For purposes of this subsection—
Options dealer
Commodities dealer
Section 1256 contracts
Special rules for certain church employee income
Computation of net earnings
In applying subsection (a)—
church employee income shall not be reduced by any deduction;
church employee income and deductions attributable to such income shall not be taken into account in determining the amount of other net earnings from self-employment.
Computation of self-employment income
Separate application of subsection (b)(2)
Paragraph (2) of subsection (b) shall be applied separately—
to church employee income, and
to other net earnings from self-employment.
$100 floor
Coordination with subsection (a)(12)
Church employee income defined
Codification of treatment of certain termination payments received by former insurance salesmen
Nothing in subsection (a) shall be construed as including in the net earnings from self-employment of an individual any amount received during the taxable year from an insurance company on account of services performed by such individual as an insurance salesman for such company if—
such amount is received after termination of such individual’s agreement to perform such services for such company,
such individual performs no services for such company after such termination and before the close of such taxable year,
such individual enters into a covenant not to compete against such company which applies to at least the 1-year period beginning on the date of such termination, and
the amount of such payment—
depends primarily on policies sold by or credited to the account of such individual during the last year of such agreement or the extent to which such policies remain in force for some period after such termination, or both, and
does not depend to any extent on length of service or overall earnings from services performed for such company (without regard to whether eligibility for payment depends on length of service).
Upper and lower limits
For purposes of subsection (a)—
Lower limit
Upper limit
Source
(Aug. 16, 1954, ch. 736, 68A Stat. 353; Sept. 1, 1954, ch. 1206, title II, § 201(a)–(c), 68 Stat. 1087; Aug. 1, 1956, ch. 836, title II, § 201(e)(2), (3), (f), (g), (i), 70 Stat. 840–842; Pub. L. 85–239, §§ 1(a), (b), 2, 5(b),Notes
References in Text
Codification
Amendments
Effective Date of 2014 Amendment
Effective Date of 2010 Amendment
Effective Date of 2008 Amendment
Effective Date of 2007 Amendment
Effective Date of 2004 Amendment
Effective Date of 1997 Amendment
Effective Date of 1996 Amendment
Effective Date of 1994 Amendment
Effective Date of 1993 Amendment
Effective Date of 1990 Amendment
Effective Date of 1989 Amendment
Effective Date of 1988 Amendment
Effective Date of 1987 Amendment
Effective Date of 1986 Amendments
Effective Date of 1984 Amendment
Effective Date of 1983 Amendment
Effective Date of 1982 Amendment
Effective Date of 1981 Amendment
Effective Date of 1978 Amendment
Effective Date of 1978 Amendment; Election of Prior Law
Effective Date of 1977 Amendment
Effective Date of 1976 Amendment
Effective Date of 1975 Amendment
Effective Date of 1974 Amendment
Effective Date of 1973 Amendments
Effective Date of 1972 Amendments
Effective Date of 1971 Amendment
Effective Date of 1968 Amendment
The amendments made by subsections (a) and (b) of this section [amending this section and section 411 of Title 42] shall apply with respect to fees received after 1967.
Notwithstanding the provisions of subsections (a) and (b) of this section [amending this section and section 411 of Title 42], any individual who in 1968 is in a position to which the amendments made by such subsections apply may make an irrevocable election not to have such amendments apply to the fees he receives in 1968 and every year thereafter, if on or before the due date of his income tax return for 1968 (including any extensions thereof) he files with the Secretary of the Treasury or his delegate, in such manner as the Secretary of the Treasury or his delegate shall by regulations prescribe, a certificate of election of exemption from such amendments.”
Effective Date of 1966 Amendment
Effective Date of 1965 Amendment
Effective Date of 1964 Amendment
Effective Date of 1961 Amendment
Effective Date of 1960 Amendment
Effective Date of 1958 Amendment
Except as provided in paragraph (2), the amendment made by subsection (a) [amending this section] shall apply only with respect to individuals who die after the date of the enactment of this Act [
In the case of an individual who died after 1955 and on or before the date of the enactment of this Act [
before
in any case where the return is filed solely for the purpose of reporting net earnings from self-employment resulting from the amendment made by subsection (a), the return is accompanied by the amount of tax attributable to such net earnings.
In any case described in the preceding sentence, no interest or penalty shall be assessed or collected on the amount of any tax due under chapter 2 of such Code solely by reason of the operation of section 1402(f) of such Code.”
Effective Date of 1957 Amendment
Section 3 [set out below], and the amendments made by the first section of this Act [amending this section], shall apply with respect to monthly insurance benefits under title II of the Social Security Act [section 401 et seq. of Title 42, The Public Health and Welfare], for months beginning after, and lump sum death payments under such title in the case of deaths occurring after, the date of the enactment of this Act [
Notwithstanding subsection (a), in the case of any individual who—
has remuneration which is deemed, by reason of section 3, to constitute remuneration for employment for purposes of title II of the Social Security Act [section 401 et seq. of Title 42], or
has income which constitutes net earnings from self-employment under such title by reason of the filing of a certificate pursuant to [former] section 1402(e)(3)(A) or (B) of the Internal Revenue Code of 1986 [formerly I.R.C. 1954], and
was entitled to monthly insurance benefits under title II of the Social Security Act [section 401 et seq. of Title 42] for the month in which this Act is enacted [August 1957],
section 3 [set out below] and the amendments made by the first section of this Act [amending this section] shall apply with respect to monthly insurance benefits under such title based on his wages and self-employment income only if he, or any other person entitled to monthly insurance benefits under such title on the basis of such wages and self-employment income, files, on or after the date of enactment of this Act [
The preceding provisions of this section shall not render erroneous any monthly insurance benefits under title II of the Social Security Act [section 401 et seq. of Title 42] for the month in which this Act [August 1957] is enacted or any prior month.”
Effective Date of 1956 Amendment
Effective Date of 1954 Amendment
Revocation by Members of the Clergy of Exemption From Social Security Coverage
In General.—
Notwithstanding section 1402(e)(4) of the Internal Revenue Code of 1986, any exemption which has been received under section 1402(e)(1) of such Code by a duly ordained, commissioned, or licensed minister of a church, a member of a religious order, or a Christian Science practitioner, and which is effective for the taxable year in which this Act is enacted [enacted
Effective Date.—
Subsection (a) shall apply with respect to service performed (to the extent specified in such subsection) in taxable years beginning after
Limited Exemption for Canadian Ministers From Certain Self-Employment Tax Liability
In General.—
Notwithstanding any other provision of law, if—
an individual performed services described in section 1402(c)(4) of the Internal Revenue Code of 1986 which are subject to tax under section 1401 of such Code,
such services were performed in Canada at a time when no agreement between the United States and Canada pursuant to section 233 of the Social Security Act [42 U.S.C. 433] was in effect, and
such individual was required to pay contributions on the earnings from such services under the social insurance system of Canada,
then such individual may file a certificate under this section in such form and manner, and with such official, as may be prescribed in regulations issued under chapter 2 of such Code. Upon the filing of such certificate, notwithstanding any judgment which has been entered to the contrary, such individual shall be exempt from payment of such tax with respect to services described in paragraphs (1) and (2) and from any penalties or interest for failure to pay such tax or to file a self-employment tax return as required under section 6017 of such Code.
Period for Filing.—
A certificate referred to in subsection (a) may be filed only during the 180-day period commencing with the date on which the regulations referred to in subsection (a) are issued.
Taxable Years Affected by Certificate.—
A certificate referred to in subsection (a) shall be effective for taxable years ending after
Restriction on Crediting of Exempt Self-Employment Income.—
In any case in which an individual is exempt under this section from paying a tax imposed under section 1401 of the Internal Revenue Code of 1986, any income on which such tax would have been imposed but for such exemption shall not constitute self-employment income under section 211(b) of the Social Security Act (42 U.S.C. 411(b)), and, if such individual’s primary insurance amount has been determined under section 215 of such Act (42 U.S.C. 415), notwithstanding section 215(f)(1) of such Act, the Secretary of Health and Human Services (prior to
Plan Amendments Not Required Until January 1, 1989
Revocation of Exemption From Coverage by Clergymen; Procedure, Applicability, Etc.
In general.—
Notwithstanding section 1402(e)(3) of the Internal Revenue Code of 1986, as redesignated by subsection (a)(2)(B) of this section, any exemption which has been received under section 1402(e)(1) of such Code by a duly ordained, commissioned, or licensed minister of a church, a member of a religious order, or a Christian Science practitioner, and which is effective for the taxable year in which this Act is enacted [enacted
before the applicant becomes entitled to benefits under section 202(a) or 223 of the Social Security Act [42 U.S.C. 402(a), 423] (without regard to section 202(j)(1) or 223(b) of such Act [42 U.S.C. 402(j)(1), 423(b)]), and
no later than the due date of the Federal income tax return (including any extension thereof) for the applicant’s first taxable year beginning after the date of the enactment of this Act [
Any such revocation shall be effective (for purposes of chapter 2 of subtitle A of the Internal Revenue Code of 1986 and title II of the Social Security Act [42 U.S.C. 401 et seq.]), as specified in the application, either with respect to the applicant’s first taxable year ending on or after the date of the enactment of this Act [
Effective date.—
Paragraph (1) of this subsection shall apply with respect to service performed (to the extent specified in such paragraph) in taxable years ending on or after the date of the enactment of this Act [
Notwithstanding section 1402(e)(3) of the Internal Revenue Code of 1986 [formerly I.R.C. 1954], any exemption which has been received under section 1402(e)(1) of such Code, by a duly ordained, commissioned, or licensed minister of a church or a Christian Science practitioner, and which is effective for the taxable year in which this Act [Pub. L. 95–216, enacted
before the applicant becomes entitled to benefits under section 202(a) or 223 of the Social Security Act [section 402(a) or 423 of Title 42, The Public Health and Welfare] (without regard to section 202(j)(1) or 223(b) of such Act [section 402(j)(1) or 423(b) of Title 42]), and
no later than the due date of the Federal income tax return (including any extension thereof) for the applicant’s first taxable year beginning after the date of the enactment of this Act [
Any such revocation shall be effective (for purposes of chapter 2 of the Internal Revenue Code of 1986 [this chapter] and title II of the Social Security Act [section 401 et seq. of Title 42]), as specified in the application, either with respect to the applicant’s first taxable year ending on or after the date of the enactment of this Act [
Subsection (a) shall apply with respect to service performed (to the extent specified in such subsection) in taxable years ending on or after the date of the enactment of this Act [