The Affordable Housing Bond Enhancement Act aims to expand housing investment by amending the Internal Revenue Code, primarily focusing on mortgage revenue bonds and mortgage credit certificates . This legislation introduces several key changes to make these financing tools more flexible and accessible for homebuyers and homeowners. For mortgage revenue bonds , the bill eliminates the refinancing limitation for eligible mortgagors and significantly increases the financing limit for qualified home improvement loans from $15,000 to $75,000, with future inflation adjustments. It also revises the recapture tax holding period, reducing it from nine years to five years, and provides greater flexibility for the use and transfer of carryforward bond authority for housing purposes. Regarding mortgage credit certificates , the legislation modifies the credit calculation, allowing variable annual credit rates, and extends the certificate's effective period. It also streamlines administrative processes by reducing the public notice requirement and shifting certain reporting responsibilities from lenders to certificate issuers, while also establishing new bond usage reporting requirements for the Treasury Secretary.