(a) In general.
(1) The term “wages” does not include that part of the remuneration paid by an employer to an employee within any calendar year—
(i) After 1954 and before 1959 which exceeds the first $4,200 of remuneration,
(ii) After 1958 and before 1966 which exceeds the first $4,800 of remuneration,
(iii) After 1965 and before 1968 which exceeds the first $6,600 of remuneration,
(iv) After 1967 and before 1972 which exceeds the first $7,800 of remuneration,
(v) After 1971 and before 1973 which exceeds the first $9,000 of remuneration,
(vi) After 1972 and before 1974 which exceeds the first $10,800 of remuneration,
(vii) After 1973 and before 1975 which exceeds the first $13,200 of remuneration, or
(viii) After 1974 which exceeds the amount equal to the contribution and benefit base (as determined under section 230 of the Social Security Act) which is effective for such calendar year
(exclusive of remuneration excepted from wages in accordance with paragraph (j) of §31.3121(a)-1 or §§31.3121(a)(2)-1 to 31.3121(a)(15)-1, inclusive) paid within the calendar year by an employer to the employee for employment performed for him at any time after 1936. For provisions relating to the treatment of tips for purposes of the annual wage limitation see §31.3121(q)-1.
(2) The annual wage limitation applies only if the remuneration received during any 1 calendar year by an employee from the same employer for employment performed after 1936 exceeds the amount of such limitation. The limitation in such case relates to the amount of remuneration received during any 1 calendar year for employment after 1936 and not to the amount of remuneration for employment performed in any 1 calendar year.
(3) If during a calendar year the employee receives remuneration from more than one employer, the annual wage limitation does not apply to the aggregate remuneration received from all of such employers, but instead applies to the remuneration received during such calendar year from each employer with respect to employment after 1936. In such case the first remuneration received in any calendar year after 1974 up to the amount equal to the contribution and benefit base (as determined under section 230 of the Social Security Act) (the first $13,200 received in 1974, the first $10,800 received in 1973, the first $9,000 received in 1972, the first $7,800 received in any calendar year after 1967 and before 1972, the first $6,600 received in any calendar year after 1965 and before 1968, the first $4,800 received in any calendar year after 1958 and before 1966, or the first $4,200 received in any calendar year after 1954 and before 1959) from each employer constitutes wages and is subject to the taxes, even though, under section 6413(c), the employee may be entitled to a special credit or refund of a portion of the employee tax deducted from his wages received during the calendar year. In this connection and in connection with the two examples immediately following, see §31.6413(c)-1, relating to special credits or refunds of employee tax. In connection with the annual wage limitation in the case of remuneration paid for services performed in the employ of the United States or a wholly owned instrumentality thereof, see §31.3122. In connection with the annual wage limitation in the case of remuneration paid for services performed in the employ of the Government of Guam, the Government of American Samoa, the District of Columbia, a political subdivision of the Government of Guam, or the Government of American Samoa, or any instrumentality of any of the foregoing which is wholly owned thereby, see §31.3125. In connection with the application of the annual wage limitation, see also paragraph (b) of this section, relating to the circumstances under which wages paid by a predecessor employer are deemed to be paid by his successor. In connection with the annual wage limitation in the case of remuneration paid after December 31, 1978, from two or more related corporations that compensate an employee through a common paymaster, see §31.3121(s)-1.
(b) Wages paid by predecessor attributed to successor.
(1) If an employer (hereinafter referred to as a successor) during any calendar year acquires substantially all the property used in a trade or business of another employer (hereinafter referred to as a predecessor), or used in a separate unit of a trade or business of a predecessor, and if immediately after the acquisition the successor employs in his trade or business an individual who immediately prior to the acquisition was employed in the trade or business of such predecessor, then, for purposes of the application of the annual wage limitation set forth in paragraph (a) of this section, any remuneration (exclusive of remuneration excepted from wages in accordance with paragraph (j) of §31.3121(a)-1 or §§31.3121(a)(2)-1 to 31.3121(a)(15)-1, inclusive) with respect to employment paid (or considered under this paragraph as having been paid) to such individual by the predecessor during such calendar year and prior to the acquisition shall be considered as having been paid by the successor.
(2) The wages paid, or considered as having been paid, by a predecessor to an employee shall, for purposes of the annual wage limitation, be treated as having been paid to such employee by a successor if:
(i) The successor during a calendar year acquired substantially all the property used in a trade or business, or used in a separate unit of a trade or business, of the predecessor;
(ii) Such employee was employed in the trade or business of the predecessor immediately prior to the acquisition and is employed by the successor in his trade or business immediately after the acquisition; and
(iii) Such wages were paid during the calendar year in which the acquisition occurred and prior to such acquisition.
(3) The method of acquisition by an employer of the property of another employer is immaterial. The acquisition may occur as a consequence of the incorporation of a business by a sole proprietor or a partnership, the continuance without interruption of the business of a previously existing partnership by a new partnership or by a sole proprietor, or a purchase or any other transaction whereby substantially all the property used in a trade or business, or used in a separate unit of a trade or business, of one employer is acquired by another employer.
(4) Substantially all the property used in a separate unit of a trade or business may consist of substantially all the property used in the performance of an essential operation of the trade or business, or it may consist of substantially all the property used in a relatively self-sustaining entity which forms a part of the trade or business.
(5) A successor may receive credit for wages paid to an employee by a predecessor only if immediately prior to the acquisition the employee was employed by the predecessor in his trade or business which was acquired by the successor and if immediately after the acquisition such employee is employed by the successor in his trade or business (whether or not in the same trade or business in which the acquired property is used). If the acquisition involves only a separate unit of a trade or business of the predecessor, the employee need not have been employed by the predecessor in that unit provided he was employed in the trade or business of which the acquired unit was a part.
(6) Where a corporation described in section 501(c)(3) which is exempt from income tax under section 501(a) has in effect a certificate filed pursuant to section 3121(k), or pursuant to section 1426(1) of the Internal Revenue Code of 1939, waiving its exemption from the taxes imposed by the Act, the activity in which such corporation is engaged is considered to be its trade or business for the purpose of determining whether the transferred property was used in the trade or business of the predecessor and for the purpose of determining whether the employment by the predecessor and the successor of an individual whose services were retained by the successor constitute employment in a trade or business. Thus, if a charitable or religious organization, subject to the taxes by virtue of its certificate, acquires all the property of another such organization likewise subject to the taxes and retains the services of employees of the predecessor, wages paid to such employees by the predecessor in the year of the acquisition (and prior to such acquisition) will be attributed to the successor for purposes of the annual wage limitation.
[T.D. 6516, 25 FR 13032, Dec. 20, 1960, as amended by T.D. 6744, 29 FR 8307, July 2, 1964; T.D. 6983, 33 FR 18015, Dec. 4, 1968; T.D. 7374, 40 FR 30948, July 24, 1975; T.D. 7660, 44 FR 75139, Dec. 19, 1979]