The End Trump's Tariff Tax Act would eliminate and refund tariffs imposed under three specific authorities: a forced labor import investigation from July 2026, balance-of-payments tariffs under the Trade Act of 1974, and tariffs imposed in response to foreign discrimination under the Tariff Act of 1930. The bill affects importers and businesses that paid these tariffs on goods between late July and early August 2026. U.S. Customs and Border Protection would be required to automatically refund all collected duties within 30 days of the bill's enactment, including interest, without requiring importers to file requests or submit documentation. The bill also repeals the underlying legal authorities that allowed the President to impose these types of tariffs in the future. Small businesses would receive prioritized refund payments under this provision.