20 CFR 404.142 : Employees' Benefits (§ 1.1 To Parts 1011-1099) — (Part 400 To Part 499) — Social Security Administration (Part 400 To Part 499) — Federal Old-Age, Survivors And Disability Insurance (1950- ) (§ 404.1 To § 404.2127) — Insured Status And Quarters Of Coverage (§ 404.101 To Appendix To Subpart B Of Part 404) — Quarters Of Coverage (§ 404.140 To § 404.146) — How we credit self-employment income to calendar quarters for taxable years beginning before 1978.

In crediting quarters of coverage under § 404.141(b)(2), we credit any self-employment income you derived during a taxable year that began before 1978 to calendar quarters as follows:

(a) If your taxable year was a calendar year, we credit your self-employment income equally to each quarter of that calendar year.

(b) If your taxable year was not a calendar year (that is, it began on a date other than January 1, or was less than a calendar year), we credit your self-employment income equally -

(1) To the calendar quarter in which your taxable year ended; and

(2) To each of the next three or fewer preceding quarters that were wholly or partly in your taxable year.