Trump's 25% tariff on EU automobiles violates the Turnberry Agreement, which also encompasses semiconductors and digital commerce.

      Trump has declared that he will increase tariffs on EU cars and trucks to 25% next week, accusing the European Union of not adhering to the Turnberry Agreement without clarifying what the violation was. The agreement, signed in July 2025, also includes stipulations regarding semiconductors, AI chips, and digital trade. Trump's readiness to disregard the automotive sections sets a worrying precedent for the entire framework of transatlantic tech trade.

      The Turnberry Agreement was intended to be a baseline. Signed at Trump’s golf resort in Scotland last July, the pact between the U.S. and the EU established a tariff ceiling of 15% on nearly all EU goods entering the U.S., including vehicles, parts, semiconductors, and pharmaceuticals. In return, the EU agreed to remove tariffs on all U.S. industrial products, to buy $750 billion worth of American energy exports, and to invest $600 billion in the U.S. by 2028. The deal was inherently asymmetrical, but the EU accepted it considering the alternatives were even less favorable. On Friday, Trump announced on Truth Social that those alternatives are returning. He will lift tariffs on EU vehicles and trucks to 25%, asserting that the EU has not complied with the agreement, although he did not outline specific failures. The European tech industry had warned months ago that tariffs would impact both hardware and software. The key question now is whether this action is just the beginning or the culmination of further escalations.

      Formally known as the Agreement on Reciprocal, Fair, and Balanced Trade, the Turnberry Agreement was announced on July 27, 2025, with a framework formalized on August 21. It capped U.S. tariffs on EU goods at 15%, with zero-for-zero arrangements for key strategic items such as aircraft components, critical raw materials, and semiconductor equipment. The agreement also included provisions for cooperation on supply chain security, AI chips, and digital trade. While European leaders, such as German Chancellor Friedrich Merz, criticized the asymmetry, they viewed the arrangement as better than a full trade war. The European Parliament approved the agreement in March 2026, adding safeguards that allow the EU to reimpose tariffs if the U.S. breaches the terms.

      The legal landscape shifted significantly on February 20, 2026, when the U.S. Supreme Court ruled in Learning Resources Inc. v. Trump that the International Emergency Economic Powers Act does not permit the president to implement broad tariffs. Shortly after, the White House reinstated a 10% universal import surcharge under Section 122 of the Trade Act of 1974, which has a duration of 150 days. Although the Turnberry Agreement was negotiated under IEEPA authority, the Supreme Court's decision didn’t nullify the agreement, but it altered the legal mechanisms for applying tariffs, leading to confusion over which provisions remain enforceable and their timelines. Consequently, the EU halted its ratification process in February, seeking clarity on the continuing validity of the deal's terms. By March, the U.S. Trade Representative began Section 301 investigations into 16 economies, including the EU, regarding steel, aluminum, autos, batteries, and high-tech products.

      Trump’s announcement specifically targets cars and trucks, raising tariffs from the current rate of 10% (set after the Supreme Court ruling) to 25%. He indicated that European automakers producing vehicles in U.S. factories would face no tariff, a move aimed at promoting manufacturing in America. Trump claimed that over $100 billion is being invested in U.S. automotive facilities, which he called a record. However, fact-checkers observed that many of these investments are reallocations within existing plants rather than new constructions and that some were announced prior to Trump’s re-election. Toyota has publicly contested the characterization of its $10 billion commitment as new investment. While international automakers have collectively invested over $124 billion in U.S. operations, much of that occurred before the current tariff regime.

      The immediate market response was controlled, with the S&P 500 maintaining its gains on Friday, but European automakers experienced declines: Stellantis fell by more than 2%, and Ferrari dropped nearly 1.5%. The EU estimated that the Turnberry agreement saved European auto manufacturers between 500 million and 600 million euros per month compared to pre-agreement tariff rates. A 25% tariff would eliminate those savings and more. BMW’s Spartanburg plant in South Carolina, the largest BMW site globally, is already producing vehicles for the American market. Stellantis has announced a $13 billion investment in the U.S. to increase production capacity by 50% over four years. Automakers manufacturing in the U.S. are somewhat shielded; those exporting completed vehicles across the Atlantic are not.

      The Turnberry Agreement encompassed more than just vehicles. Its provisions eliminating tariffs on semiconductor equipment and its collaboration framework on AI chips and digital trade represented the most significant aspects for European technology firms