Includes “The 2018 state legislative sessions ended with 16 states enacting substantial tax relief for their citizens that was sufficient to qualify for State Tax Cut Roundup. Reducing effective tax rates in response to broader tax bases resulting from federal tax conformity was a common theme. Of the 16 states that substantially reduced taxes in 2018, a full 14 did so as a part of conforming state tax codes to the new federal code following the passage of the federal Tax Cuts and Jobs Act (TCJA).”