Social Security Disability Insurance (SSDI): SSDI is based on your work history. As you work, you earn “work credits” that make you eligible for benefits if you become disabled. Your monthly benefit amount depends on your work credits at the time you apply, and your case is reviewed every three to seven years.
Supplemental Security Income (SSI): Unlike SSDI, SSI doesn’t depend on work credits. It’s available to individuals with limited income and resources who are 65 or older, or who have a disability. Benefits typically start sooner than SSDI, though the monthly amount is usually lower. Your case is reviewed every year.
Not sure whether SSDI or SSI applies to your situation? Read our full guide on the differences between SSDI and SSI.