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Pension question, United States

How far back can Social Security be backdated?

A late application is paid up to six months retroactively, and only at or after full retirement age. Below that age retroactivity is blocked wherever it would permanently cut your monthly amount, so every year of not knowing is simply gone.

  • Source: ssa.gov Handbook 1513, ssa.gov international payments, and SSA POMS, read 3 October 2026

What to do next

  1. Work out your full retirement age and the month you reach it.
  2. Gather your Social Security number and the dates of each US job.
  3. Run our free check to see which other countries set a clock on your pension.

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Questions people also ask

Is Social Security paid without an application?

SSA's handbook states you must file an application to become entitled to benefits.

  • Source: ssa.gov, read 3 October 2026

Do you give advice on what to do?

No. We identify where a pension is likely held and the official route to it, and we name each source with the date we read it. We do not give financial, tax or legal advice.