The "Housing Affordability Act" proposes significant modifications to the multifamily loan limits under Title II of the National Housing Act. This legislation aims to substantially increase the maximum insurable mortgage amounts for various multifamily housing programs administered by the Federal Housing Administration (FHA), thereby potentially expanding financing options for such developments. A central component of the bill involves replacing numerous existing dollar amounts across several sections of Title II with significantly higher figures. These revisions, often quadrupling previous limits, apply to programs covering rental housing, cooperative housing, and housing for the elderly, intending to better align FHA loan ceilings with current construction costs and market demands. Additionally, the bill updates the methodology for future adjustments to these loan limits. Starting January 1, 2026, annual adjustments will be calculated by the Secretary based on the percentage change in the Price Deflator Index of Multifamily Residential Units Under Construction . This new, specific index replaces an older adjustment process and requires all adjustments to be published in the Federal Register, enhancing transparency and predictability in FHA multifamily lending.