The Revenue Stabilization and Land Value Assessment Amendment Act of 2026 proposes significant changes to the District of Columbia's property tax system aimed at enhancing fiscal stability without increasing tax rates. The bill mandates a shift in the property tax billing and payment cycle from a biannual to a quarterly schedule, which is intended to address cash flow issues highlighted by Chief Financial Officer Glen Lee. This change is expected to improve the alignment between the District's revenue collection and its expenditure needs, thereby reducing the necessity for the District to maintain a large Fiscal Stabilization Reserve Account.

Additionally, the legislation introduces new criteria for property tax assessments, specifically focusing on the land component of property values. Starting from the tax year beginning July 1, 2028, assessments will reflect the estimated market value of land as if it were vacant and available for its highest and best use, ensuring consistency across similarly situated parcels regardless of improvements. This approach aligns with recommendations from previous Tax Revision Commissions and aims to promote tax equity and affordability, potentially paving the way for a land value tax or a split-rate system that taxes land and improvements at different rates.