US tech importers remain stuck in tariff refund backlog

Two weeks after the US Supreme Court blocked Donald Trump’s emergency tariffs, the tech industry is still waiting to learn how and when Customs will return what economists estimate is more than $175 billion in unlawfully collected duties. The Consumer Technology Association told Ars Technica that the longer refunds take, the more the government owes in interest; the Cato Institute estimates roughly $700 million in interest accrues each month.

The episode is a reminder that “tariffs” are not just a policy lever; they are a systems problem that lands inside product operations. Even if refunds can be automated, companies still have to prove what they paid, for which shipments, under which classifications, and under which legal authority—while their supply chains keep moving. Consumer electronics is particularly exposed because product lines refresh quickly, parts cross borders multiple times, and a single device may contain components sourced from several jurisdictions.

Trade groups argue that Customs and Border Protection already has the tooling to issue refunds at scale, pointing to cases where duties were repaid after retroactive changes. A judge at the US Court of International Trade, Richard Eaton, ordered universal refunds and noted that the agency should be able to “program its system to issue refunds,” according to CNBC, with CBP expected to present a plan in court.

Yet the bottleneck is not only payment rails. Tariffs are collected at the shipment level, but companies manage products at the SKU and bill-of-materials level. That mismatch pushes firms toward heavier compliance stacks: tighter linkage between procurement systems and customs brokers, more granular tracking of origin and classification, and internal audit trails that can survive a dispute years later. Large importers can amortize that overhead and even optimize around it; smaller companies often discover the true cost only after a rule change.

For tech firms, the uncertainty hits twice: cash is tied up while refunds are delayed, and new tariffs continue to be proposed and litigated. The result is a planning environment where launch timing, inventory buffers, and pricing strategy depend on court calendars and agency backlogs as much as on component lead times.

Atmus Filtration, one plaintiff in the tariff litigation, reportedly paid about $11 million in the blocked duties. Until CBP’s refund mechanism is clear, that money remains a line item that engineers cannot ship around and finance teams cannot close.