The Temporary Assistance for Needy Families (TANF) program provides eligible low-income families with cash aid, commonly referred to as “welfare.” However, not every family that is eligible for TANF under their state’s policies receives benefits. In 2016, an estimated 24.9 percent of eligible families received cash grants, slightly less than the 26.3 percent estimated for 2015. These eligibility estimates used to compute the participation rates are produced using the TRIM3 microsimulation model.