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THE DAILY BRIEFING · FRIDAY, SEPTEMBER 18, 2026 · 3 MIN READ · AI-WRITTEN, EDITOR-REVIEWED

October Looms Large as CBP Prepares to Expand IEEPA Tariff Refund Processing

The biggest news for tariff refund watchers this week centers on October, which is shaping up as a pivotal month for IEEPA refund processing. U.S. Customs and Border Protection plans to expand its processing capacity for tariff refunds under the International Emergency Economic Powers Act next month, according to Supply Chain Dive. Separately, CBP will begin processing refunds specifically for finally liquidated IEEPA tariff entries starting in October, according to IndexBox. Businesses waiting on money owed following the Supreme Court's Learning Resources ruling should mark their calendars.

Adding to the October picture, CAPE Phase 3 is set to launch on October 6 and is expected to affect how IEEPA tariff refunds are processed and distributed going forward, according to Leyton.com. Details on the full scope of the phase remain limited, but the timing aligns closely with CBP's broader expansion plans, suggesting a coordinated ramp-up in refund infrastructure heading into the fall.

On the trade policy front, President Trump escalated rhetoric toward the European Union on Wednesday, warning that if the EU moves forward with allowing Canada to join as an associate member, he could respond with heavy tariffs or even a trade embargo. Trump called the potential move a possible "hostile act," according to The Hill. The threat adds another layer of uncertainty to U.S.-EU trade relations at a time when American importers are already navigating the post-Learning Resources tariff landscape.

Senators Rick Scott (R-Fla.) and Tammy Baldwin (D-Wis.) sent a bipartisan letter to the Federal Trade Commission asking it to investigate Amazon and Walmart over alleged anticompetitive practices tied to AI-powered "Made in USA" fraud detection tools, according to The Hill. While not directly tied to IEEPA tariff refunds, the scrutiny on retail giants' import compliance practices is worth noting for businesses operating in that space.

On the agriculture side, a horse in New Mexico's Grant County has been confirmed infected with New World screwworm, just days before the state was set to resume livestock imports from Mexico, according to The Hill. It is the second confirmed case in the region, raising questions about whether the import resumption will proceed on schedule.

In other news, an ICE officer facing charges related to the alleged shooting of a Venezuelan migrant during enforcement operations in Minneapolis has been arrested and booked into Hennepin County, according to The Hill. Swedish pop star Zara Larsson also publicly criticized the White House after it used her song "Midnight Sun" without permission in an ICE-related social media video. The Pentagon, meanwhile, issued updated guidance mandating testosterone deficiency screening for male active-duty and reserve service members over 30, after briefly rescinding earlier guidance, according to The Hill. Eight organizations involved in litigation over the Kennedy Center called on its current leadership to resign or allow a receiver to be appointed, The Hill reports.

What to Watch: October 6 is the key near-term date, with CAPE Phase 3 scheduled to go live. CBP's broader refund processing expansion is also expected to come into effect in October, meaning importers with finally liquidated entries should be in close contact with their customs brokers to ensure filings are in order. Any further movement on Trump's threatened EU tariffs or trade embargo — particularly in response to Canada's potential associate membership — could ripple quickly through markets already sensitive to trade policy shifts.

— The Tariff.news desk

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