The Anacostia Business Improvement District Amendment Act of 2026 amends the Business Improvement Districts Act of 1996 to allow the Mayor to approve a petition from the Anacostia Business Improvement District (BID) for the expansion of its geographic area. This expansion can include real property owned by the District of Columbia that is adjacent to or abutting the current BID area. The new provision specifies that the expanded area will not take effect until the Council approves the geographic expansion, and any initial BID taxes for the newly included taxable properties will be collected during the next scheduled billing cycle.

The bill includes a new subsection (d) in Section 10 of the Business Improvement Districts Act, which outlines the conditions under which the Mayor can approve the expansion. It emphasizes that the expansion is contingent upon Council approval and sets forth the process for tax collection in the expanded area. The act will take effect after being approved by the Mayor and undergoing a 30-day congressional review period.