SSI vs SSDI — SSDI vs SSI

SSI and SSDI are both Social Security disability programs that pay monthly cash benefits to people with disabilities — but they work in completely different ways and serve different groups of people.

**SSDI — Social Security Disability Insurance:** SSDI is based on your work history. To qualify, you need to have worked and paid Social Security taxes for enough years. Most adults need about 5 years of work in the last 10 years to qualify (younger workers need less). Your monthly benefit amount is based on your past earnings — the more you earned over your career, the higher your SSDI check. After 24 months of receiving SSDI, you're automatically enrolled in Medicare.

**SSI — Supplemental Security Income:** SSI is based on financial need, not your work history. You don't need any work history to qualify. Instead, you must have very limited income and resources — in 2026, your countable resources can't exceed $2,000 if single or $3,000 if married. The monthly payment is a flat federal rate ($994/month in 2026 for an individual), plus whatever your state adds. SSI recipients are usually enrolled in Medicaid.

**Can you receive both?** Yes — this is called concurrent benefits. If you qualify for SSDI but your benefit is low (below the SSI limit), you may receive SSI to top it up. Receiving both is common for people with limited work history and low lifetime earnings.

**The quick way to tell them apart:** Ask yourself, "Do I have a work history with Social Security taxes paid?" If yes, SSDI is the main program for you. If no, SSI is likely what applies.