50% Tariffs on $20 Billion in Canadian Goods Take Effect

A 50% ad valorem duty — a tax based on the item's value — hit nearly $20 billion in Canadian imports at 12:01 a.m. ET on August 19, 2026. Last-minute talks on August 18 produced no deal. The tariffs, imposed under Section 338, target what the administration calls Canadian discrimination against U.S. commerce in motor vehicles and dairy.