Temporary Assistance for Needy Families is a federal assistance program of the United States. It began on July 1, 1997, and succeeded the Aid to Families with Dependent Children (AFDC) program, providing cash assistance to indigent American families through the United States Department of Health and Human Services. TANF is often simply referred to as welfare, but some argue this is a misnomer. Unlike AFDC, which provided a guaranteed cash benefit to eligible families, TANF is a block grant to states that creates no federal entitlement to welfare and is used by states to provide non-welfare services, including educational services, to employed people.

The Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (PRWORA) is a United States federal law passed by the 104th United States Congress and signed into law by President Bill Clinton. The bill implemented major changes to U.S. social welfare policy, replacing the Aid to Families with Dependent Children (AFDC) program with the Temporary Assistance for Needy Families (TANF) program.