Overview
- Canada will put dollar‑for‑dollar countertariffs on about $27.6–$28 billion of U.S. imports at 12:01 a.m. Tuesday, Sept. 8, covering hundreds of items including steel, aluminum, motorcycles and other industrial and consumer goods.
- The tariff list was adjusted after industry feedback when Ottawa removed more than 200 seafood codes and added six other items to keep near parity with the U.S. measures.
- Canadian officials say the measures are meant to shield domestic firms hit by U.S. 50% Section 338 duties and to apply political pressure on manufacturers in swing states such as Ohio, Pennsylvania, Michigan and Wisconsin.
- The moves come with talks between Ottawa and Washington frozen and U.S. officials pledging further retaliation, with U.S. options reportedly under consideration that could target Canadian alcohol, dairy or steel imports.
- Economists warn the duties could raise Canada’s effective tariff rate to roughly 3.2%, risk supply‑chain disruption and higher costs for businesses and consumers, and prompt likely legal challenges under the rarely used 1930s Section 338 authority.