Trump Extends 25% Steel and Aluminum Tariffs Through 2027 While Carving Out Favored Partners

On June 1, 2026, President Trump signed a proclamation adjusting the Section 232 tariff regimes for aluminum, steel and copper, effective June 8. It keeps a 25 percent base duty on covered aluminum and steel articles through December 31, 2027, while setting a 15 percent minimum effective rate for a list of partners including Japan, South Korea, Switzerland, Taiwan, the United Kingdom and EU members. Goods made entirely from U.S.-smelted aluminum or U.S.-melted steel drop to 10 percent; Canadian and Mexican USMCA goods are taxed only on non-U.S. content. The derivative-product lists were expanded to add aluminum lithographic plates and steel racks while cutting rates on agricultural equipment and residential HVAC systems.

Section 232 authorizes tariffs on national-security grounds and, unlike the emergency tariff powers the Supreme Court invalidated in February 2026, has not been struck down. Its country-by-country carve-outs let the executive branch set effective rates partner by partner without new congressional action.

The proclamation was published in the Federal Register on June 4, 2026 and remains in effect.