US customs to halt IEEPA tariffs after SC ruling, shifts duties

US Customs and Border Protection will stop collecting tariffs imposed under the International Emergency Economic Powers Act from early Tuesday, days after the US Supreme Court ruled the duties illegal. The decision marks a legal shift in the Trump administration’s trade policy. While one set of tariffs is being withdrawn, a new global import duty under a separate authority is taking effect at the same time. The change affects customs systems, revenue flows, and potentially billions of dollars already paid by importers. It comes as supply chains remain sensitive to policy changes and compliance risks. It also forces companies to reassess compliance processes and adjust documentation for shipments arriving this week. Importers must ensure that entries filed after the deadline…