SSDI Back Pay Calculator
Estimate the SSDI back pay you could be owed, using Social Security's 5-month waiting period and 12-month look-back rule.
Your Social Security statement shows an estimate. The average is about $1,701 in early 2027.
The month you became unable to work.
Fill in the dates to see your estimate.
A rough estimate for SSDI only, before any offsets (like workers' comp). SSI back pay works differently. Only Social Security can calculate what you're owed. Your answers stay on your device. How back pay works →