The Low Income Housing Tax Credit (LIHTC) subsidizes the development of affordable rental housing for low-income renters and has produced more than two million units over the past 20 years. As the earliest LIHTC properties have reached the end of the initial 15-year affordability period, the question arises – are they still serving low- and moderate-income families? This evaluation, conducted by Abt Associates for the U.S. Department of Housing and Urban Development, examines how and why properties left or remained in the program, how the properties are performing physically and financially, whether they have been recapitalized, and whether ownership has changed. The study also documents owners’ reasons for deciding whether or not to continue offering their properties as affordable rentals. The research will illuminate how use restrictions for subsidized rental housing work in practice and how policymakers should think about using them in the design of future housing programs.