From duties to import bans: The Canada–U.S. tariff war after the collapse of negotiations
Just after midnight on Aug. 22, 2026, the United States began collecting 50 per cent duties on approximately US$20 billion (C$27.6 billion) worth of Canadian goods under Section 338 of the Tariff Act of 1930 (the Tariff Act). Our earlier insight examined this Depression-era provision after the underlying proclamations were signed in July. Within hours, Prime Minister Carney made an announcement that Canada would match the U.S. duties “dollar for dollar.” On…

