Supplemental Security Income (SSI) is a federal assistance program administered by the Social Security Administration (SSA) that provides monthly cash benefits to disabled, blind, or elderly individuals with limited income and resources. SSI benefits are intended to help recipients meet basic needs, such as food, shelter, and clothing, and are based on financial need rather than work history. To qualify for SSI, individuals must meet certain eligibility criteria, including having a qualifying disability, being aged 65 or older, and having limited income and resources. SSI benefits are adjusted annually based on changes in the cost of living and are subject to income and asset limits. Recipients may also be eligible for additional state benefits, such as Medicaid, to help cover healthcare costs.