Trump's 25% tariff on EU automobiles violates the Turnberry Agreement, which also includes provisions related to semiconductors and digital trade.

      TL;DR Trump has declared he will increase tariffs on EU cars and trucks to 25% next week, claiming the bloc is not complying with the Turnberry Agreement, though he did not detail the specific violation. Signed in July 2025, the agreement also pertains to semiconductors, AI chips, and digital trade. Trump's intent to violate the auto terms sets a worrying precedent for the entire transatlantic tech trade arrangement.

      The Turnberry Agreement was meant to be a foundational trade pact. Established at Donald Trump's golf resort in Scotland last July, the accord established a 15% tariff ceiling on almost all EU goods entering the U.S., such as cars, car parts, semiconductors, and pharmaceuticals. In return, the EU agreed to eliminate tariffs on all U.S. industrial products, commit to purchasing $750 billion in American energy exports, and invest $600 billion in the U.S. by 2028. Despite its asymmetry, the EU accepted the deal, as the alternative was less favorable. On Friday, Trump took to Truth Social to announce the reversion to alternatives, planning to raise tariffs on EU automotive products to 25%, blaming the EU for non-compliance without specifying what that entails. The European tech industry had previously warned that such tariffs would adversely affect both hardware and software, prompting questions about whether this move marks the start or end of escalating tensions.

      The Turnberry Agreement, formally known as the Agreement on Reciprocal, Fair, and Balanced Trade, was revealed on July 27, 2025, and formalized in an agreement on August 21. It established a 15% cap on U.S. tariffs on EU goods, along with zero tariffs on specific strategic categories like aircraft components, key raw materials, and semiconductor equipment. It also included cooperation clauses regarding supply chain security, AI chips, and digital trade. The EU pledged to eliminate tariffs on all U.S. industrial goods and offer preferential access to American agricultural products. Although European leaders, including German Chancellor Friedrich Merz, criticized the deal's imbalance, they endorsed it to avoid a trade war. The European Parliament ratified the agreement in March 2026, with added safeguards allowing the EU to reimpose tariffs if the U.S. breached the terms.

      The legal basis of the agreement 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 did not give the president the authority to impose extensive tariffs. Subsequently, the White House reinstated a 10% universal import surcharge under Section 122 of the Trade Act of 1974, which has a 150-day limit. Although the Turnberry Agreement was negotiated under IEEPA authority, the Supreme Court ruling did not invalidate the agreement but altered the legal method for administering tariffs, leading to uncertainty about which terms remain enforceable. In February, the EU paused its ratification process, seeking to clarify the standing of the deal’s terms. By March, the U.S. Trade Representative had initiated Section 301 investigations into 16 economies, including the EU, focusing on steel, aluminum, autos, batteries, and high-tech goods.

      Threats regarding tariffs have now been directed specifically at cars and trucks, with plans to increase tariffs from the current 10% rate to 25%. Trump noted that European car manufacturers producing vehicles in U.S. plants would incur no tariffs, a move aimed at promoting domestic manufacturing. He asserted that over $100 billion is being invested in U.S. automotive facilities, which he termed unprecedented. Fact-checkers have pointed out, however, that much of this investment refers to reallocated resources at existing facilities rather than new constructions, with some commitments made prior to Trump's re-election. Toyota has publicly contested the White House's portrayal of its $10 billion pledge as new investment. While international automakers have collectively invested over $124 billion in U.S. operations to date, a significant portion of that occurred before the current tariff regime.

      The market's immediate response was measured. The S&P 500 maintained its gains on Friday, although European automakers saw declines: Stellantis dropped over 2%, and Ferrari fell nearly 1.5%. The EU estimated that the Turnberry agreement saved European automakers between €500 million and €600 million per month compared to pre-deal tariff rates, but a 25% tariff would reverse those savings and impose additional costs. BMW’s Spartanburg plant in South Carolina, the largest BMW facility globally, already produces vehicles for the American market. Stellantis has committed $13 billion to increase production capacity in the U.S. by 50% over four years. Automakers with U.S. manufacturing are somewhat shielded, while those shipping finished vehicles from Europe are not.

      Beyond vehicles, the Turnberry Agreement included terms for semiconductor equipment and established a framework for cooperation on AI chips and digital trade, which are crucial for European tech firms. Trump