Trump’s tariff hearing: why country rules can add to an importer’s bill

A U.S. business importing a hypothetical $10,000 shipment can owe an additional $1,000 tariff without any finding that those goods were made with forced labor. President Donald Trump’s latest tariffs target a different issue: whether the goods’ country or economy of origin adequately prohibits imports made with forced labor. That is the administration’s stated rationale—and the legal basis for those charges is now disputed. USTR’s official announcement.

A three-judge panel at the U.S. Court of International Trade heard challenges to the tariffs in Manhattan on September 30, 2026. Small businesses and 25 Democratic-led states contend that the administration exceeded its authority. Pratik Shah, a lawyer for the businesses, argued that the government had failed to make the country-specific findings needed to justify its action. Reuters, republished by MarketScreener.

Justice Department lawyer Eric Hamilton disputed that account. He said the U.S. Trade Representative had examined each of the 60 investigated economies using data, case studies, testimony and comments, while acknowledging a common basis for its determinations. That was the government’s defense, rather than a judicial finding that the investigations satisfied the law. CNBC’s hearing reporting.

The judges questioned both sides, including whether the government had bypassed more specific labor-related requirements. No ruling was issued at the September 30 hearing. The duties followed the Supreme Court’s February 20 rejection of broad tariffs imposed through emergency economic powers, and the July expiration of a temporary replacement. The challengers allege that the administration is trying to recreate the earlier regime; that allegation remains contested. Reuters, via MarketScreener.

The mechanism is easier to understand by separating two laws. Under Section 301, the authority used for these tariffs, the government can respond to a foreign practice it determines is unreasonable or discriminatory, burdens or restricts U.S. commerce, and warrants action. The statute expressly allows measures against goods unrelated to the disputed practice. That explains how a shipment can attract a duty without a finding about its production—but does not settle whether these particular investigations and tariffs met the law’s conditions. Statutory text reproduced by Cornell.

USTR says its target is trading partners’ failure to impose and effectively enforce forced-labor import prohibitions. Its July announcement describes two rounds of public hearings and more than 2,100 comments. Those are the agency’s account of its process and its disputed determinations. Official USTR source.

The separate Section 307 import ban concerns the goods themselves: products made wholly or partly with forced labor are prohibited from entering the United States. Paying a Section 301 tariff does not override that prohibition. Conversely, owing the tariff is not itself proof that a shipment was made with forced labor. Import-ban text reproduced by Cornell.

The duties began July 24. Many goods face an additional 10% or 12.5% duty. For nonexempt EU and Taiwan goods, the measure instead tops the ordinary duty up to 10%; for Japanese, South Korean and Swiss goods, the threshold is 12.5%. Within those named top-up groups, this measure adds nothing when the ordinary duty already meets or exceeds the relevant threshold. Official CBP guidance, hosted on GovDelivery.

For a hypothetical $10,000 customs value, assuming nonexempt goods subject to the stated treatment, the arithmetic looks like this:

The first calculation is $10,000 × 0.10 = $1,000. For the EU 4% example, $10,000 × (0.10 − 0.04) = $600: $400 in ordinary duty plus a $600 top-up. The EU 12% example retains its $1,200 ordinary duty, with no addition under this measure. Other duties, fees and freight are excluded. Customs value is not a shop price.

Qualifying Canadian and Mexican goods entered duty-free under the United States–Mexico–Canada Agreement avoid these additional duties. Product and origin exemptions also apply; other import charges can remain. CBP guidance.

The importer owes the duties to the U.S. government under customs regulations reproduced by Cornell. How much of that cost reaches shoppers, and when, is a separate question.

In a Federal Reserve research note published March 5, 2026, Sinem Hacıoğlu-Hoke, Sarojini Malladi and Leo Feler found gradual retail-price adjustments during 2025. Their matched sample contained about 27,000 products, mainly groceries and health and beauty goods, and did not represent the complete household spending basket. The authors discussed existing inventories, retailers absorbing costs and uncertainty about how long tariffs would last. Their research helps explain why a border charge need not immediately become an equivalent price rise. It does not measure these July 2026 duties’ effects or predict a household’s shopping bill.

Sources

• Hearing reporting: Reuters, republished by MarketScreener, and CNBC.
• Official U.S. tariff sources: USTR’s July announcement and CBP’s guidance on GovDelivery.
• U.S. statutory and regulatory text reproduced by Cornell: Section 301, Section 307 and importer liability.
• Historical retail-price research: Hacıoğlu-Hoke, Malladi and Feler’s Federal Reserve note.