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Appendix A: Historical OASI Tax Rates

(Employee and Employer Combined)

and Tax Bases

Earnings

Earnings

Year

OASI Tax

Subject to Tax

Year

OASI Tax

Subject to Tax

1967

7.10%

$6,600

1937

2.00%

$3,000

1968

6.65%

$7,800

1938

2.00%

$3,000

1969

7.45%

$7,800

1939

2.00%

$3,000

1970

7.30%

$7,800

1940

2.00%

$3,000

1971

8.10%

$7,800

1941

2.00%

$3,000

1972

8.10%

$9,000

1942

2.00%

$3,000

1973

8.60%

$10,800

1943

2.00%

$3,000

1974

8.75%

$13,200

1944

2.00%

$3,000

1975

8.75%

$14,100

1945

2.00%

$3,000

1976

8.75%

$15,300

1946

2.00%

$3,000

1977

8.78%

$16,500

1947

2.00%

$3,000

1978

8.55%

$17,700

1948

2.00%

$3,000

1979

8.66%

$22,900

1949

2.00%

$3,000

1980

9.04%

$25,900

1950

3.00%

$3,000

1981

9.40%

$29,700

1951

3.00%

$3,600

1982

9.15%

$32,400

1952

3.00%

$3,600

1983

9.55%

$35,700

1953

3.00%

$3,600

1984

10.40%

$37,800

1954

4.00%

$3,600

1985

10.40%

$39,600

1955

4.00%

$4,200

1986

10.40%

$42,000

1956

4.00%

$4,200

1987

10.40%

$43,800

1957

4.00%

$4,200

1988

11.06%

$45,000

1958

4.00%

$4,200

1989

11.06%

$48,000

1959

4.50%

$4,800

1990

11.20%

$51,300

1960

5.50%

$4,800

1991

11.20%

$53,400

1961

5.50%

$4,800

1992

11.20%

$55,500

1962

5.75%

$4,800

1993

11.20%

$57,600

1963

6.75%

$4,800

1994

10.52%

$60,600

1964

6.75%

$4,800

1995

10.52%

$61,200

1965

6.75%

$4,800

1996

10.52%

$62,700

1966

7.00%

$6,600

1997

10.70%

$65,400

Source: 1997 Social Security Trustees Report, Table II.B.1, p. 33.

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