{"data":{"id":"us/20-cfr-404.312","jurisdiction":"us","citation":"20 CFR 404.312","heading":"How is my old-age benefit amount calculated?","body":"(a) If your old-age benefits begin in the month you attain full retirement age (as defined in § 404.409), your monthly benefit is equal to the primary insurance amount (as explained in subpart C of this part).\n(b) If your old-age benefits begin after the month you attain full retirement age, your monthly benefit is your primary insurance amount plus an increase for retiring after full retirement age. See § 404.313 for a description of these increases.\n(c) If your old-age benefits begin before the month you attain full retirement age, your monthly benefit amount is the primary insurance amount minus a reduction for each month you are entitled before you attain full retirement age. These reductions are described in §§ 404.410 through 404.413.","path":["Title 20—Employees' Benefits","CHAPTER III—SOCIAL SECURITY ADMINISTRATION","PART 404—FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950- )","Subpart D—Old-Age, Disability, Dependents' and Survivors' Insurance Benefits; Period of Disability"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-20.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:45Z","sha256":"bf69b8b6fcd6566b6e1406be74d30f859821760bf975e66bcd52b9cac3615a46","source_id":"us-cfr","stale":true,"prev":"us/20-cfr-404.311","next":"us/20-cfr-404.313"},"notice":"GroundRules: Original legal text. Not legal advice."}