In the wake of a U.S. Supreme Court ruling that struck down a key impediment to private school choice, Pioneer Institute has published a toolkit for designing tax-credit scholarship programs. Now available in 18 states, nearly 300,000 students nationwide use tax-credit scholarships to attend the school of their family’s choice. TCS policies create an incentive for taxpayers to contribute to nonprofit scholarship organizations that aid families with tuition and, in some states, other K–12 educational expenses. This paper explores the central design features of TCS policies—such as eligibility, the tax credit value, credit caps, and academic accountability provisions—and outlines the different approaches taken by the TCS policies in each state.