The "Affordable Housing Tax Assessment Alignment Act of 2026" aims to ensure that property assessments for affordable housing accurately reflect their restricted income-producing capacity. The bill mandates that the Mayor provide the Office of Tax and Revenue (OTR) with a quarterly list of all real properties in the District subject to affordability restrictions, such as inclusionary zoning. This data sharing is intended to close the information gap that has led to inflated tax assessments on affordable housing, which can undermine the financial viability of these properties and hinder their operation and preservation.

In addition to this primary focus, the bill is part of a broader "Build Housing Package" that includes three other legislative proposals aimed at reducing costs and expediting housing development in the District. These proposals address issues such as the cumulative cost burden of housing regulations, the establishment of pre-approved housing plans to streamline small-scale projects, and the implementation of a risk-based third-party code review system to improve permitting timelines. Together, these reforms are designed to enhance the efficiency of housing delivery and ensure that public investments translate into tangible housing units for District residents.