Canada–U.S. trade war: 50% tariffs, retaliatory duties and USMCA tensions
Canada halted trade talks with the U.S. after Washington imposed 50% tariffs on about $20 billion of goods and Ottawa announced retaliatory duties.
Key highlights
Direct fact
In August 2026, Canadian Prime Minister Mark Carney halted trade talks with the United States after Washington imposed 50% tariffs on about $20 billion worth of Canadian goods, triggering Ottawa’s retaliatory tariff plan.
Key specifics
- U.S. tariffs covered about $20 billion worth of goods, equal to 5.5% of Canadian exports to the United States.
- Canada said its new retaliatory tariffs would target the U.S. steel and dairy industries.
- The new Canadian tariffs were scheduled to take effect on September 8, 2026.
- U.S. Trade Representative Jamieson Greer said no new talks were planned with Canadian negotiators.
- Canada said the dispute also affected autos, steel and aluminium, and raised concerns over USMCA revisions.
Exam lens
International relations and trade policy question, 50% U.S. tariff, September 8 retaliatory date, Mark Carney, Jamieson Greer, USMCA — TNPSC may ask which country imposed retaliatory duties and which sectors were hit.