A bill to amend the Internal Revenue Code of 1986 to make permanent the minimum low-income housing tax credit rate for unsubsidized buildings and to provide a minimum 4 percent credit rate for existing buildings.

Amends the Internal Revenue Code to: (1) make permanent the the minimum low-income housing tax credit rate for new buildings that are not federally subsidized, and (2) establish a minimum 4% low-income housing tax rate for existing buildings that are not federally subsidized.