Brazil has opened a formal World Trade Organization challenge to the two Section 301 tariff actions Washington imposed this month, disputing duties that stack to as much as 37.5 per cent on shipments into a market that took $42.3bn of Brazilian goods in 2024.
The request for consultations, lodged on Monday and circulated to members on Thursday, covers both measures. The first is the additional 25 per cent ad valorem duty applied to all products of Brazil, subject to exemptions, arising from the country-specific investigation into digital trade and electronic payment services, preferential tariffs, anti-corruption enforcement, intellectual property, ethanol market access and illegal deforestation.
The second is the additional 12.5 per cent duty applied to Brazilian goods under the parallel forced-labour investigation.
Brazil’s contentionis that the additional duties sit above the rates otherwise applicable under the US harmonized tariff schedule, and that the measures are inconsistent with WTO rules.
Itamaraty, the Brazilian foreign ministry, described the US measures as “unjustified and incompatible with US obligations”. A week earlier, rejecting the forced-labour action, Brasília had called that investigation “arbitrary and unjustified”, arguing that Washington had used labour standards as cover for protection despite Brazilian submissions on its legislation and enforcement machinery.
The 25 per cent duty applied to entries from 22 July. The forced-labour action took effect 48 hours later and covers 60 economies, with Brazil in the flat 12.5 per cent tier alongside China, Vietnam and Russia rather than the 10 per cent tier granted to jurisdictions with an operative import prohibition. Goods already on the final mode of transit before 24 July escaped the duty if entered before 28 July.
The legal architecture of the complaint is conventional: bound-rate and most-favoured-nation claims, coupled with the argument that the United States has sought redress for asserted violations outside the dispute settlement system. Brazil ran the same Article 23 argument in the case it brought in August 2025 against the earlier round of US duties, and the two proceedings now sit alongside each other.
With the Appellate Body still without members, a panel report adverse to the United States can be appealed into abeyance, and Washington is not a participant in the Multi-Party Interim Appeal Arbitration Arrangement. Brazilian officials briefed on the filing have indicated the complaint is intended in part to place the objection on the record. Folha de S.Paulo has noted that rulings have lacked binding effect since 2019.
Brasília has said it will invoke the response mechanisms under its economic reciprocity legislation, has continued bilateral talks with USTR, including a fifth high-level meeting on 14 July before the final action, and is channelling support to exposed exporters through the Plano Brasil Soberano.
Will this stay a bilateral matter? The forced-labour action landed on 60 economies on the same morning, and the determinations behind it were, in substance, interchangeable. If the other 59 conclude that a consultations request costs little and preserves rights, the case in Geneva will grow — quickly.