How to Apply for Social Security Disability

Updated October 13, 2026 · 2 min read · 3 sources

Short answer

Apply online at ssa.gov, by phone or at a Social Security office. You must have a medical condition expected to last at least 12 months or result in death that prevents substantial gainful activity, which in 2026 means earning more than $1,690 a month for non-blind applicants. SSDI also requires enough work credits; SSI is need-based. Gather medical records, doctors' contacts and work history first.

Social Security disability is a federal benefit for people who cannot work because of a serious, long-lasting medical condition. The application is long, and many claims are denied at first, so preparation matters.

SSDI vs. SSI

SSDI SSI
Based on Work history and Social Security taxes paid Financial need
Asset limits None Strict limits on income and resources
Health coverage Medicare after a waiting period Medicaid in most states
2026 benefit Based on earnings record Federal payment standard of $994 a month for an individual, plus any state supplement

Figures from the SSA 2026 fact sheet. You can apply for both at once.

The disability definition

You must be unable to do any substantial gainful activity (SGA) because of a medically determinable physical or mental impairment expected to last at least 12 months or to result in death (42 U.S.C. 423(d)). In 2026, SGA is earnings above $1,690 a month for non-blind people and $2,830 for blind people (SSA).

SSA uses a five-step process: whether you are working above SGA, whether your condition is severe, whether it meets a listed impairment, whether you can do your past work, and whether you can do any other work considering your age, education and experience.

How to apply

  • Online at ssa.gov (adults applying for SSDI can usually complete it fully online)
  • By phone or in person at a local office

What to gather

  • Names, addresses and visit dates for all doctors, hospitals and clinics
  • Medications and tests
  • Work history for the past 5 years and job duties
  • Earnings records, W-2s or tax returns
  • Workers' comp or other disability benefits received

Timing

There is generally a five-month waiting period for SSDI benefits after the established onset date. Initial decisions often take several months. If approved, you may receive back pay.

Tips

  • Keep seeing your doctors; gaps in treatment hurt claims.
  • Ask doctors to document functional limits: how long you can sit, stand, lift and concentrate.
  • Answer forms consistently and completely.

If denied, you usually have 60 days to appeal; see what to do if SSDI is denied. Disability attorneys are paid only if you win, from back pay, with fees capped by federal rules. Find employment lawyers who handle Social Security disability.

Sources

  1. Social Security Administration: Disability benefits
  2. Social Security Administration: 2026 Social Security changes fact sheet
  3. Cornell Law School LII: 42 U.S.C. 423(d), Definition of disability

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This article is general legal information, not legal advice, and reading it does not create an attorney-client relationship. Laws differ by state and change over time; talk to a licensed attorney in your state about your situation.

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