The Temporary Assistance for Needy Families (TANF) block grant helps states fund, among other benefits and services, cash assistance for needy families with children. While there are some federal rules that determine who may qualify for TANF-funded cash assistance (e.g., the family must have a dependent child), states determine the financial eligibility criteria and cash assistance benefit amounts. There is a large amount of variation among the states in the income thresholds that determine whether a family is eligible for cash assistance and in the benefit amounts paid. This book describes state TANF financial eligibility rules and maximum benefit amounts; and discusses spending and policy options for TANF.