To apply for Social Security Disability (SSDI or SSI) you need your Social Security number, proof of age (birth certificate), and detailed medical evidence: your doctors, hospitals, clinics, dates of visits, medications, and test results. You’ll also need work history (W-2s or self-employment tax returns) for SSDI, and for SSI, bank statements and proof of resources because it’s needs-based. The more complete your medical records, the stronger the claim.
Documents you’ll need
Social Security numbers for everyone applying
Agencies match your SSN to verify identity and check other income on record.
Proof of age (birth certificate)
Confirms identity and is required to establish your claim.
Medical evidence
Names, addresses, and dates for every doctor, hospital, and clinic — plus medications and test results — prove your condition.
Work history
W-2s or self-employment tax returns establish your SSDI work credits.
Bring these if they apply to you
Bank statements & resources (SSI)
SSI is needs-based with a strict resource limit, so accounts must be documented.
Proof of citizenship or lawful status
Required to establish eligibility.
Military discharge papers (DD-214)
Veterans may get expedited processing and credit for service.
Tips that speed up approval
- List every provider and condition — Social Security decides on the full medical picture, and missing records are the top reason claims are denied.
- Most first-time disability claims are denied; a representative (paid only if you win) sharply improves approval odds on appeal.
Frequently asked questions
- What medical evidence do I need for disability?
- A complete list of every doctor, hospital, and clinic you’ve seen, with addresses and visit dates, plus your medications, test results, and treatment history. Social Security can request the records, but listing them all is essential.
- What’s the difference between SSDI and SSI documents?
- SSDI needs your work history (W-2s or self-employment returns) because it’s based on work credits. SSI additionally needs bank statements and proof of resources because it’s needs-based.
- Why are so many disability claims denied at first?
- Most are denied for incomplete medical evidence or technical errors — not because the person isn’t disabled. That’s why thorough records and an appeal (often with a representative) matter so much.
Updated June 2026. Document lists vary slightly by state — your state agency’s notice is the final word. Educational information, not legal advice. Not affiliated with any government agency.
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