This bill, titled the Presidential Tax Accountability and Audit Integrity Act, amends the Internal Revenue Code of 1986 to explicitly prohibit the Secretary of the Treasury from entering into or giving effect to any agreement, order, waiver, or similar instrument that purports to affect federal tax matters for the President or related individuals. This prohibition applies to any such instrument made during the President's term in office and covers the President, their dependents, and other related persons as defined by specific tax code sections concerning disallowance of losses or common control. Furthermore, the bill mandates that the Secretary submit public reports to Congress detailing the identity of taxpayers affected by any such covered instrument and the actions taken to comply with these new requirements. These reports must be made within seven days of an instrument's creation (or enactment date for prior instruments) and then every 30 days until three years after the President's term concludes or the instrument is rescinded. For covered instruments entered into between January 20, 2025, and the bill's enactment, the period for assessing or collecting applicable taxes is extended to not expire before three years after the President's term ends, ensuring proper oversight of past agreements.