Who qualifies for SSDI

Construction workers on a job site. SSDI covers workers in jobs covered by Social Security, from construction to offices. Photo: Wikimedia Commons, CC BY 2.0.

Office workers at their desks. Covered work in any occupation can earn SSDI credits. Photo: Wikimedia Commons, public domain.

A worker at Boundary Dam in 1967. Work credits are earned over a working lifetime. Photo: Wikimedia Commons, CC BY 2.0.

Every SSDI claim must pass two separate tests. Failing either one ends the claim, no matter how strong the other side is. The first test is about your work history. The second is about your medical condition.

Test 1: the work test (insured status)

You must have worked long enough, and recently enough, in jobs covered by Social Security. SSA measures work in credits (also called quarters of coverage). In 2026 you earn one credit for each $1,890 of covered earnings, up to 4 credits a year ($7,560). The number of credits you need depends on your age when your disability began — see the full tables on Work credits. In general:

Before age 24: 6 credits in the 3 years before your disability began.
Ages 24 to 30: credit for half the time between age 21 and when your disability began (for example, 12 credits if you became disabled at 27).
Age 31 and older: generally 20 credits in the 10 years before your disability began, plus enough total credits for your age.
Statutory blindness: only the duration test applies — there is no recent-work test.

You must also be under full retirement age. At full retirement age, a disability benefit converts to a retirement benefit (see After approval).

Test 2: the medical test

SSA defines disability for SSDI as the inability to engage in substantial gainful activity because of a medically determinable physical or mental impairment that has lasted or is expected to last for a continuous period of at least 12 months, or that is expected to result in death. Three parts of that sentence do real work:

Medically determinable — your condition must be shown by medical evidence: signs, laboratory findings, and treatment records, not only by your description of symptoms.
At least 12 months — a broken leg that heals in three months does not qualify, however painful. A condition that is expected to last a year or longer can qualify even if you have not yet been disabled for a full year.
Substantial gainful activity — if you are working above the SGA limit ($1,690 a month in 2026, or $2,830 if statutorily blind), SSA generally finds you are not disabled, whatever your diagnosis.

What SSDI does not cover

Not short-term disability. There is no SSDI payment for a disability lasting only a few months.
Not partial disability. SSA does not pay a percentage for a partial loss of function. You are either found disabled under its rules, or you are not.
Not needs-based. Your income from savings, a spouse's earnings, or other household income does not decide SSDI. Only your own work record and your own ability to work at the SGA level matter.
Not workers' compensation or VA disability. Those are separate systems with their own rules. Receiving one does not automatically qualify you for SSDI, although the medical evidence may overlap.

If you pass the work test but are unsure about the medical side, read How SSA decides, which walks through the five-step sequential evaluation SSA uses on every claim.

General information only. This page explains the U.S. Social Security Disability Insurance program in plain English. It is not legal, financial, or medical advice, and it cannot decide whether you qualify. Only the Social Security Administration (SSA) can decide a claim. Figures change every year — always confirm the current figure with SSA before you act on it. Contact: hello [at] tapetoolhq.com.