Which changes should a buyer ask their adviser to check now?

Request a dated applicability memo for the business and its owners. The useful result is a list of affected decisions, evidence and actions—not a generic summary of “new tax savings”.

This is a federal-first watchlist checked on 3 November 2026. It does not cover all state conformity, local tax or healthcare regulation. Rules, publication dates, effective dates and deadlines are distinct; the table preserves those distinctions.