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USA: How to Prioritise U.S. Tariffs ("Tariff Stacking")

Master overlapping tariffs with this new CBP rule—don't pay more than you should!


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When it comes to U.S. Customs Compliance, staying up to date on tariff policy is essential.


In this blog we bring you updated guidance on how to prioritise multiple U.S. tariffs on the same article—helping you avoid overpaying and confidently navigate import regulations.






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Key Questions Covered in This Blog

  • What is Executive Order 14289 and why is it important for U.S. importers?

  • How should overlapping tariffs be prioritised under EO 14289?

  • What tariffs are affected by this new guidance?

  • How do USMCA exemptions interact with these tariffs?

  • What should you do to claim refunds for entries made after March 4, 2025?



Abbreviations Used In This Blog

  • EO – Executive Order

  • CBP – Customs and Border Protection

  • IEEPA – International Emergency Economic Powers Act

  • USMCA – United States-Mexico-Canada Agreement

  • HTSUS – Harmonized Tariff Schedule of the United States

  • CSMS – Cargo Systems Messaging Service

"Smart tariff stacking could be the difference between a compliant entry and thousands in overpaid duties. Know the order, know your rights."Arne Mielken, Managing Director, Customs Manager

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What is Executive Order 14289 and why is it important for U.S. importers?

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