This booklet explains the SSI program. We designed it to help institutions, groups, and organizations that have contact with potential or current SSI recipients.
The Social Security Administration runs the SSI program. Social Security decides who is eligible, makes payments, and keeps a master record of recipients. Even though Social Security runs the program, SSI is not Social Security. SSI is financed by U.S. Treasury general funds, not the Social Security trust funds.
You can find more general descriptions of the SSI program in Supplemental Security Income (SSI) (Publication No. 05-11000) and You May Be Able To Get Supplemental Security Income (SSI) (Publication No. 05-11069).