A U.S. federal trade court ruled Thursday that President Donald Trump's 10 percent [1] global tariffs are illegal.
The decision challenges the administration's ability to unilaterally impose broad trade barriers, potentially altering the cost of imported goods and shifting international trade relations.
The court found that the across-the-board tariffs were not justified under the International Emergency Economic Powers Act, a trade law from the 1970s [1, 2]. According to the ruling issued May 7, 2026 [3], the administration failed to provide the necessary legal basis required by that specific legislation to maintain the 10 percent [1] levy on imports.
This ruling follows a period of significant legal scrutiny regarding presidential authority over trade. Earlier this year, the Supreme Court issued a 6-3 [4] vote on a related case involving the same 1970s trade law, signaling a tightening of the legal standards used to justify emergency economic powers.
Legal challenges to the tariffs focused on whether the president could use emergency powers to implement a general tax on all foreign imports without specific, narrow justifications. The U.S. Trade Court determined that the broad application of the 10 percent [1] tariff exceeded the legal boundaries set by the IEEPA [1, 2].
Because the tariffs were deemed not justified under the law, the court ruled they cannot be legally enforced. The decision comes as businesses and foreign governments have sought clarity on the legality of the administration's trade strategy, a strategy centered on using tariffs as a primary tool for economic leverage.
“The court found the across‑the‑board 10% tariffs were not justified under a 1970s trade law”
This ruling restricts the executive branch's power to use the International Emergency Economic Powers Act as a blanket tool for trade wars. By requiring a stricter legal justification for tariffs, the court has created a precedent that may force the administration to negotiate individual trade deals or seek congressional approval rather than relying on emergency declarations to alter global commerce.
