{
  "title": "Social Security Full Retirement Age Chart by Birth Year",
  "canonical": "https://quantcalc.app/social-security-full-retirement-age/",
  "status": "STATUTORY",
  "license": "CC-BY-4.0",
  "date_modified": "2026-09-24",
  "sources": [
    {
      "label": "42 U.S.C. §416(l) (retirement age)",
      "url": "https://www.law.cornell.edu/uscode/text/42/416"
    },
    {
      "label": "42 U.S.C. §402(q) and (w) (reduction and delayed credits)",
      "url": "https://www.law.cornell.edu/uscode/text/42/402"
    },
    {
      "label": "SSA, Retirement age and benefit reduction",
      "url": "https://www.ssa.gov/benefits/retirement/planner/agereduction.html"
    }
  ],
  "figures": {
    "rows": [
      {
        "birth_years": "1943–1954",
        "fra_months": 792,
        "pct_at_62": 0.75,
        "pct_at_70": 1.32
      },
      {
        "birth_years": "1955",
        "fra_months": 794,
        "pct_at_62": 0.7416666666666667,
        "pct_at_70": 1.3066666666666666
      },
      {
        "birth_years": "1956",
        "fra_months": 796,
        "pct_at_62": 0.7333333333333334,
        "pct_at_70": 1.2933333333333334
      },
      {
        "birth_years": "1957",
        "fra_months": 798,
        "pct_at_62": 0.7250000000000001,
        "pct_at_70": 1.28
      },
      {
        "birth_years": "1958",
        "fra_months": 800,
        "pct_at_62": 0.7166666666666667,
        "pct_at_70": 1.2666666666666666
      },
      {
        "birth_years": "1959",
        "fra_months": 802,
        "pct_at_62": 0.7083333333333334,
        "pct_at_70": 1.2533333333333334
      },
      {
        "birth_years": "1960 and later",
        "fra_months": 804,
        "pct_at_62": 0.7000000000000001,
        "pct_at_70": 1.24
      }
    ]
  }
}