As part of the Tax Reform Act of 1986, the United States Congress created the Low-Income Housing Tax Credit (LIHTC) (IRC Section 42) Program to promote the development of affordable rental housing for low-income individuals and families. To date, it has been the most successful rental housing production program in Arizona, creating thousands of residences with very affordable rents. The Low-Income Housing Tax Credit, rather than a direct subsidy, encourages investment of private capital in the development of rental housing by providing a credit to offset an investor's federal income tax liability.