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Costco Sues for Tariff Refunds as Treasury Outlines Plan B Before Supreme Court Decision

Treasury says the administration can shift the tariff program to Sections 301, 232 and 122 if the Court rejects IEEPA, a prospect that has importers racing to preserve refund rights.

Overview

  • Costco filed in the U.S. Court of International Trade seeking a ruling that IEEPA-based tariffs are unlawful and a full refund, warning of a December 15 liquidation deadline that could block recovery.
  • An expedited Supreme Court ruling on the legality of using the International Emergency Economic Powers Act for broad tariffs is expected soon after skeptical questioning at November 5 oral arguments.
  • Treasury Secretary Scott Bessent said the White House can re-create the current tariff structure using Sections 301, 232 and 122, and argued a loss would harm the American people.
  • U.S. Customs and Border Protection data show importers have paid nearly $90 billion in duties under the IEEPA tariffs, and more than a dozen companies have filed suits seeking refunds.
  • Since arguments, the administration has removed or modified some IEEPA tariffs on specific goods and pursued product-specific measures under other statutes, while CBP continues collecting duties.