This bill amends the Internal Revenue Code of 1986 to disallow tax deductions for certain expenses related to private planes, specifically targeting "disqualified private plane expenditures." These expenditures include amounts paid or incurred to purchase, maintain, or operate any fixed-wing aircraft, encompassing depreciation or amortization. The legislation aims to eliminate tax benefits for private jet ownership and operation by preventing these costs from being deducted. However, the bill outlines several important exceptions where deductions would still be permitted. These include aircraft primarily used to transport property or those modified for and used in agriculture, firefighting, or emergency medical purposes . Furthermore, exceptions apply to taxpayers operating aircraft for specific commercial services, such as providing aeronautics instruction, offering skydiving services, operating scheduled public air transportation, or conducting public sightseeing flights. The provisions of this bill will apply to amounts paid or incurred after December 31, 2025.