SSI vs SSDI
Two different Social Security disability programs — SSI is need-based; SSDI is based on your work history.
SSI (Supplemental Security Income) and SSDI (Social Security Disability Insurance) are two separate programs that both can pay monthly money to people who cannot work because of a disability — but they qualify in different ways. SSDI is based on your past work and Social Security taxes paid; you usually need 20 work credits in the last 10 years (less for younger workers) and a disability that lasts at least 12 months or is expected to end in death. SSDI pays a benefit based on your Average Indexed Monthly Earnings (AIME) and Primary Insurance Amount (PIA), and after 24 months of SSDI you are auto-enrolled in Medicare. SSI is need-based; it does not require any work history but limits resources to $2,000 (single) or $3,000 (couple) and counts most income. SSI's monthly federal payment in 2025 is $967 for an individual, often topped up by a state supplement, and most SSI recipients are automatically eligible for Medicaid. Some people get both, called 'concurrent' benefits.
In real life
- A 50-year-old with a long work history files for SSDI; her benefit comes from her own earnings record.
- A young adult with a lifelong disability and no work history files for SSI; the federal payment is $967 in 2025.
- A worker with low past earnings qualifies for both SSDI and SSI, called concurrent benefits.
Also known as
Frequently asked questions about SSI vs SSDI
Can I get both SSI and SSDI?+
Yes — called concurrent benefits — if your SSDI is low enough that SSI tops you up to the federal payment.
Which one has Medicare?+
SSDI gets Medicare after 24 months. SSI usually gets Medicaid right away in most states.
How fast can I get benefits?+
Both have processing times of months to years. Compassionate allowances and TERI cases move faster.
Do I need a lawyer?+
You do not have to have one, but representation can help, especially at the hearing level.
Source: ssa.gov