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Supreme Court Curbs IEEPA Tariff Power, Reasserting Congress’s Trade Authority

The 6-3 ruling applies the major questions doctrine to find no clear statutory basis for unilateral tariffs.

Overview

  • The Court held on February 20, 2026, that IEEPA does not authorize a president to impose broad import duties.
  • Tariffs collected under the emergency program were voided and the case was remanded to lower courts to determine refund procedures.
  • The dispute arose from President Donald Trump’s 2025 national economic emergency and tariffs on imports from more than sixty countries.
  • The justices narrowed IEEPA rather than striking it down, emphasizing that tariffs function as taxation reserved to Congress.
  • The decision opens the door to significant importer refund claims and leaves the administration to consider Section 232 or 301 actions or to seek explicit legislation.