Supplemental Security Income

Through the Supplemental Security Income (SSI) program, the federal government and the states provide cash assistance to people who are disabled, aged, or both and who have low income and few assets. CBO projects SSI spending under current law, prepares cost estimates for legislative proposals affecting SSI, and analyzes options for changing the program.

Presentation
Dynamic Analysis of Changes to the Supplemental Nutrition Assistance Program (SNAP) in H.R. 1
June 23, 2025
This slide deck describes the main mechanisms in CBO's dynamic analysis of H.R. 1, explains the changes to SNAP, and explains the macroeconomic effects and budgetary feedback of those changes.
Report
Supplemental Security Income: An Overview
December 11, 2012
The report discusses how the SSI program works, who receives payments, the program’s spending and interaction with other government programs, the extent to which SSI affects people’s work and saving, and approaches to changing the program.