Supplemental Security Income (SSI) is a federal program run by Social Security Administration that gives a monthly income to people with disabilities, blind, or who are 65 or older with limited income and property. Recipients must be a U.S. citizen or a national with countable income below the federal benefit rate or FBR. Recipients are grouped into children (age 17 and younger), working age (ages 18 to 64), and elderly (age 65 and older). Different policy issues and rules apply to various age.