The U.S. Court of International Trade ruled Thursday that President Donald Trump's 10% [1] global tariffs are illegal and must be struck down.

The decision removes a significant financial burden from importers and marks a major legal defeat for the administration's trade policy. Small-business plaintiffs, who challenged the tariffs, won the case after the court found the measures violated U.S. trade statutes.

A three-judge panel in New York City issued the ruling on May 7, 2026 [4]. The judges concluded that the across-the-board tariffs were not justified under a trade law from the 1970s [8]. The court's decision was reached via a 2-1 [2] vote split.

The tariffs in question had taken effect on Feb. 24, 2026 [3]. Since their implementation, the 10% [1] levy applied to a wide array of global imports, affecting supply chains and consumer prices across the country.

This legal setback comes as the administration continues to navigate complex trade disputes with international partners. President Trump had previously mentioned a July 4, 2026 [5] deadline regarding the European Union, adding further tension to the transatlantic economic relationship.

The ruling specifically favors the small-business owners who argued that the broad application of the tariffs exceeded executive authority. By citing the 1970s statute, the court established that the administration cannot unilaterally impose such global levies without adhering to specific legal justifications provided by Congress.

The court found the tariffs illegal and struck them down.

This ruling restricts the executive branch's ability to use broad tariffs as a primary tool for economic leverage. By anchoring the decision in a 1970s trade law, the court has signaled that congressional statutes limit the president's authority to impose across-the-board levies, potentially forcing the administration to negotiate bilateral deals or seek new legislative approval for trade barriers.