The U.S. will stop collecting certain emergency tariffs at 12:01 a.m. ET on Tuesday after the Supreme Court ruled the duties unlawful, according to a notice from U.S. Customs and Border Protection. The change ends collections tied to tariff measures imposed under the International Emergency Economic Powers Act, a key legal foundation used in prior trade actions.
In a message posted to its Cargo Systems Messaging Service for shippers, CBP said it will deactivate all tariff codes associated with the president’s IEEPA-related orders as of Tuesday. The update formalizes the operational shift at ports of entry after several days of continued collections following the court decision.
What CBP is turning off and what stays in place
CBP’s notice is narrowly focused on IEEPA-related duties. It does not alter other tariff programs already in force, including those imposed under Section 232 (national security) and Section 301 (unfair trade practices). Those tariffs remain collectible under existing rules, leaving the broader tariff landscape intact even as the IEEPA layer is removed.
The agency did not provide a public explanation for why IEEPA tariff collections continued for multiple days after the Supreme Court ruling, and the notice did not include specific instructions on refunds for importers that paid the duties during the period between the decision and Tuesday’s cutoff.
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A new 15% global tariff arrives as the IEEPA duties exit
The halt in IEEPA tariff collections lands at the same moment the administration is pivoting to a new framework: a 15% global tariff introduced under a different legal authority to replace the duties struck down by the Supreme Court. The timing underscores how quickly trade policy can be re-routed even when a major legal pillar is removed.
For markets and supply chains, that means the headline may be “collections halted,” but the practical reality is more complex: one tariff channel is closing while another opens. The net effect for importers will depend on product categories, applicable statutory programs, and whether goods are covered by Section 232 or Section 301 duties alongside the new global tariff layer.
Refund questions and a very large number in play
The biggest unresolved issue is whether importers will pursue refunds and how those claims may be handled. Reuters reported that the Supreme Court decision could put more than $175 billion in Treasury revenue tied to IEEPA tariffs into potential refund territory, based on estimates from Penn-Wharton Budget Model economists. Their ground-up model estimated the IEEPA tariffs were generating more than $500 million per day in gross revenue before the ruling.
CBP said it will provide further guidance to the trade community through CSMS messages as appropriate, leaving businesses watching for clarity on documentation, timing, and eligibility if refunds are ultimately processed.
Why this matters for investors and corporate planning
For companies with cross-border supply chains, the decision reshapes near-term cost assumptions and raises the prospect of cash recovery tied to previously paid duties. For investors, the policy turn introduces a fresh layer of uncertainty around trade-sensitive sectors, pricing power, and the inflation pass-through debate, particularly as tariff authority shifts from one statute to another.
The immediate operational takeaway is straightforward: IEEPA-related tariff collection stops Tuesday at 12:01 a.m. ET. The strategic takeaway is less simple: the tariff regime is being rearranged rather than dismantled, and the refund path remains the central open question.
Read the latest reporting via Reuters.
