US Supreme Court Limits Use of IEEPA for Tariffs: Key Points for Importers

Posted by Matt Springate
Blog originally posted on 20/02/2026 03:04 PM

US Supreme Court 16-9

Today, the U.S. Supreme Court ruled that the government cannot use the International Emergency Economic Powers Act (IEEPA) to impose tariffs. This is a significant legal change, but there is no immediate operational impact for importers. Duties under IEEPA must still be paid, and refund questions remain unresolved. IEEPA tariffs will be replaced with a 10% global tariff under Section 122 of the Tariff Act of 1974.

 What Did the Supreme Court Decide? 

The Court determined that IEEPA cannot serve as the legal basis for tariffs. This ruling only affects tariffs imposed under IEEPA and does not impact those under Section 301 (including China tariffs) or Section 232 (steel, aluminum, copper, autos, and auto parts), which remain in force.

Will IEEPA Duties Stop Soon?

U.S. Customs and Border Protection (CBP) will continue collecting IEEPA duties until it provides official instructions to the trade on revised entry procedures. We expect these to be forthcoming. 

Refunds Uncertain

The Supreme Court did not address refunds. The process will be decided by lower courts. Importers should continue to protest unliquidated entries to preserve their right to refunds, as deadlines apply.

What Should Importers Do?

Importers should keep paying all duties, track IEEPA payments separately, keep documentation, and monitor updates from CBP and the courts.

 Section 122 and Looking Ahead 

The Administration announced on February 20th that they would impose a global tariff effective immediately of 10% under Section 122, as well as initiate new investigations under Section 232 and Section 301. There are also numerous 232 investigations pending that could lead to future product-based tariffs.

 Bottom Line

This Supreme Court ruling is important legally, but there is no immediate change for importers. Stay vigilant, keep records, pay required duties, and watch for further guidance on refunds and compliance.

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Topics: United States, Customs, Trade Compliance, CBP

Blog originally posted on 20/02/2026 03:04 PM

Matt Springate

Written by Matt Springate

As Principal for Tradewin’s US consulting practice, Matt brings extensive experience in working with importers and exporters to perfect their compliance operations. He specializes in duty recovery programs, preferential trade agreement qualification, tariff classification, prior disclosures, and audit support. Preceding this role, Matt was Principal of Tradewin’s European practice for five years, based in the United Kingdom. There, he managed a team of consultants across multiple European countries providing both tactical and advisory services for customers. Prior to relocating to the UK, Matt served as Tradewin’s Manager of U.S. Duty Drawback services, and as an Advisory Services Consultant. Matt holds a Master of Arts degree in Diplomacy and International Commerce from the University of Kentucky and a Bachelor of Arts degree in Political Science from Furman University. He is a Licensed Customs Broker and is IATA/FIATA Certified. Matt is based in Boston, Massachusetts.