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Life · Chapter 12 · Disability & Survivors

Social Security Disability Benefits

Definition
Requires fully insured status + the 20/40 recent-work test, a five-month waiting period (benefits begin in the sixth month), and TOTAL disability: inability to engage in any substantial gainful work in the national economy, expected to last at least 12 months or result in death.
In plain English
The government's disability definition is brutal — any job in the country counts against you, and partial disability pays nothing.
Exam tip
5-month wait · total-only · 12 months-or-death · fully insured + 20/40. All four requirements get tested. At full retirement age, disability benefits automatically convert to retirement benefits at the same amount.
Easy to confuse with

These are what this term gets tested against — if you can't tell them apart cold, drill the contrast.

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Verified against primary sources · 2026-08-05