| Feature | Supplemental Security Income | Social Security Disability Insurance |
|---|---|---|
| Eligibility | Based on financial need (low income and limited assets) |
Based on work history and Social Security tax contributions |
| Disability Requirement | Must meet SSA’s definition of disability | Must meet SSA’s definition of disability |
| Work History Required? | No, but income and assets must be below a certain level | Yes, must have sufficient work credits from paying Social Security taxes |
| Funding Source | General tax revenues | Social Security payroll taxes (FICA) |
| Monthly Benefit Amount | Typically lower, varies by state | Based on prior earnings (can be higher than SSI) |
| Health Insurance Provided | Medicaid (eligibility varies by state) |
Medicare (after 24 months of SSDI benefits) |
| Waiting Period for benefits | No waiting period | 5-month waiting period for benefits to begin |
| Benefits for Dependents? | No | Yes, eligible dependents (spouse, children) may receive benefits |