"The low-income housing tax credit (LIHTC) program is one of the federal government's primary policy tools for encouraging the development and rehabilitation of affordable rental housing. These nonrefundable federal housing tax credits are awarded to developers of qualified rental projects via a competitive application process administered by state housing finance authorities. Developers typically sell their tax credits to outside investors in exchange for equity. Selling the tax credits reduces the debt developers would otherwise have to incur and the equity they would otherwise have to contribute. With lower financing costs, tax credit properties can potentially offer lower, more affordable rents. The LIHTC is estimated to cost the government an average of approximately $9.0 billion annually."
CRS Report for Congress, RS22204