(a) Old-age, survivors, and disability insurance. The rates of employer tax for old-age, survivors, and disability insurance with respect to wages paid in calendar years after 1954 are as follows:
Calendar year Percent
1955 and 1956................................................ 21957 and 1958................................................ 2.251959......................................................... 2.51960 and 1961................................................ 31962......................................................... 3.1251963 to 1965, both inclusive................................. 3.6251966......................................................... 3.851967......................................................... 3.91968......................................................... 3.81969 and 1970................................................ 4.21971 and 1972................................................ 4.61973......................................................... 4.851974 to 2010, both inclusive................................. 4.952011 and subsequent calendar years........................... 5.95
(b) Hospital insurance. The rates of employer tax for hospital insurance with respect to wages paid in calendar years after 1965 are as follows:
Calendar year Percent
1966......................................................... 0.351967......................................................... .501968 to 1972, both inclusive................................. .601973......................................................... 1.01974 to 1977, both inclusive................................. 0.901978 to 1980, both inclusive................................. 1.101981 to 1985, both inclusive................................. 1.351986 and subsequent calendar years........................... 1.50
(c) Computation of employer tax. The employer tax is computed by applying to the wages paid by the employer the rate in effect at the time such wages are paid. [T.D. 6983, 33 FR 18014, Dec. 4, 1968, as amended by T.D. 7374, 40 FR 30948, July 24, 1975]