A three-judge panel of the U.S. Court of International Trade ruled May 7, 2026, that President Donald Trump’s global tariff was illegal [1, 2].
The decision represents a significant legal check on executive power regarding trade policy. By blocking the enforcement of these tariffs, the court has created immediate economic uncertainty for importers and the federal treasury.
The court found that the 10% global tariff on most imports exceeded the president's statutory authority under the Trade Expansion Act [1, 3]. According to the ruling, the administration also violated the Administrative Procedure Act in its implementation of the tax [1, 3].
While the court declared the tariff illegal, it issued only a narrow injunction blocking its enforcement [3]. This specific limitation means the ruling does not automatically dismantle the entire trade framework, but targets the legal mechanism used to collect the fees.
The proceedings took place at the U.S. Court of International Trade in New York City [1, 2]. The judges said the executive branch had overstepped the bounds of the law when applying the 10% [1] rate to a broad spectrum of international goods.
Legal experts said the narrow nature of the injunction may be a strategic move by the court to avoid immediate systemic chaos in global shipping. However, the core finding—that the tariff is illegal—sets a precedent that could lead to broader challenges against other executive trade actions. The ruling follows months of litigation from various industry groups and trading partners who argued the tariffs were an unauthorized exercise of power [2, 3].
“The court found the tariff exceeded the President’s statutory authority”
This ruling limits the ability of the U.S. executive branch to unilaterally impose broad-based tariffs without specific congressional authorization. While the narrow injunction prevents an immediate total collapse of the tariff regime, the legal determination of illegality provides a foundation for future lawsuits and may force the administration to seek legislative approval or modify its trade strategy to comply with the Administrative Procedure Act.
