Annual data from the U.S. Census Bureau appear to lend support to South Dakota’s reputation as a “low tax state,” ranking it 51st nationally in taxes collected as a share of personal income, the lowest overall tax state.1 But focusing on the state’s overall tax revenues has led many observers to overlook the fact that different taxpayers experience South Dakota’s tax system very differently. In particular, the poorest 20 percent of South Dakota residents pay significantly more of their income (11.3 percent) in state and local taxes than any other group in the state. For low-income families, South Dakota is far from being a low tax state.2 In fact, only eleven states tax their poorest residents more heavily than South Dakota.