Applying for Social Security Disability Benefits (SSDI & SSI)
A comprehensive guide to Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI), including eligibility, the application process, and appeals.
Social Security Disability: SSDI and SSI
The Social Security Administration (SSA) operates two disability programs: Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI). Both provide monthly cash benefits to people with disabilities, but they have different eligibility requirements.
SSDI vs. SSI: Key Differences
SSDI (Social Security Disability Insurance)
SSI (Supplemental Security Income)
The Definition of Disability
The SSA uses a strict definition: you must be unable to engage in any "substantial gainful activity" (SGA) due to a medically determinable physical or mental impairment that:
The current SGA amount is $1,550/month for non-blind individuals and $2,590/month for blind individuals (2025).
The Five-Step Evaluation Process
The SSA evaluates disability claims using a sequential five-step process:
How to Apply
Gather Your Documentation
Submit Your Application
The Timeline and Appeals Process
The initial application process typically takes 3-6 months. Approximately 65% of initial applications are denied. The appeals process has four levels:
Tips for a Successful Claim
After Approval
Key Terms: Substantial Gainful Activity (SGA) — the earnings threshold for disability. Residual Functional Capacity (RFC) — what you can still do despite your limitations. Blue Book — SSA's listing of qualifying impairments. Consultative Examination (CE) — SSA-arranged medical exam.
Disclaimer: Social Security disability law is complex. Many applicants benefit from working with a disability attorney or accredited representative, especially at the hearing level.
When to Talk to a Lawyer
- Your legal situation involves significant financial consequences
- You are unsure how federal vs. state law applies to your case
- You need to file legal documents or meet court deadlines
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.