Table 1.

The effect of the social security amendments of 1983 (SSA1983) on OASI benefits for primary earners, by age at retirement and year of birth.

Year of birth	Full benefits retirement age (FRA)	Benefit as a percentage of primary insurance amount (PIA) received if retiring at… (%)
		Age 67	FRA	Age 65	Age 62
1934–1937* and earlier	65	106–113	100	100.0	80.0
1938*	65 + 2 months	111.9	100	98.9	79.2
1939*	65 + 4 months	111.7	100	97.8	78.3
1940*	65 + 6 months	110.5	100	96.7	77.5
1941*	65 + 8 months	110.0	100	95.6	76.7
1942*	65 + 10 months	108.8	100	94.4	75.8
1943–1948*	66	108.0	100	93.3	75.0
1949–1951**	66	108.0	100	93.3	75.0
1952–1954	66	108.0	100	93.3	75.0
1955	66 + 2 months	106.7	100	92.2	74.2
1956	66 + 4 months	105.3	100	91.1	73.3
1957	66 + 6 months	104.0	100	90.0	72.5
1958	66 + 8 months	102.7	100	88.9	71.7
1959	66 + 10 months	101.3	100	87.8	70.8
1960 and later	67	100.0	100	86.7	70.0

NOTE:

^*indicates cohorts included in our aggregated SSDI count data sample and our HRS data sample;

^**indicates cohorts that are only included in our aggregated SSDI data sample. For the HRS sample, we include those born between 1931–1948.

The aggregated SSDI dataset uses data from 1992–2013, the HRS dataset uses data from 1992–2014, and the HRS-Form-831 merged dataset uses years 1992–2012.

SOURCE: Social Security’s Retirement Planner, at https://www.ssa.gov/oact/ProgData/ar_drc.html (accessed August 1, 2018).