Rev. Proc. 2025-18, page 1430.

This Revenue Procedure provides issuers of qualified mortgage bonds and mortgage credit certificates with (1) the nationwide average purchase price for residences located in the United States, and (2) the average area purchase price safe harbors for residences located in statistical areas in each state, the District of Columbia, Puerto Rico, the Northern Mariana Islands, American Samoa, the Virgin Islands, and Guam.