Brazil has officially informed the U.S. government that it lacks the legal basis to impose a 25% [1] tariff on Brazilian products.

The dispute threatens to destabilize trade relations between the two largest economies in the Americas, potentially impacting export volumes and economic stability in Brazil.

Foreign Minister Mauro Vieira delivered the rebuke in a statement sent to the Office of the United States Trade Representative and spoke with journalists in Paris, France, on June 4 [2]. Vieira said the proposal should be abandoned to avoid economic damage. Despite the legal challenge, the minister said Brazil intends to maintain a dialogue with the U.S., and is ruling out retaliation for the time being [2].

The diplomatic tension has reached the highest levels of government. President Luiz Inácio Lula da Silva said Brazil does not have the right to accept a new tariff hike from the Trump administration [3]. While the primary focus remains on the 25% [1] levy, other reports have mentioned potential tariffs of 12.5% [4] as well.

Brazilian officials are attempting to balance a firm legal stance with a willingness to negotiate. The government's strategy involves contesting the legality of the measure while avoiding an immediate trade war that could trigger broader market volatility. The request for the U.S. to drop the proposal reflects Brazil's effort to resolve the matter through diplomatic channels before the tariffs are formally implemented [2].

Brazil does not have the right to accept a new tariff hike from the Trump administration.

This confrontation highlights a growing friction in US-Brazil trade relations, where legal arguments are being used to stave off protectionist policies. By ruling out immediate retaliation, Brazil is attempting to prevent a cycle of tit-for-tat tariffs that could disrupt global supply chains, though the stark disagreement between Lula and the Trump administration suggests a difficult path toward a diplomatic resolution.