A Section 338 proclamation took effect 22 August 2026
A 50% duty now lands on 554 tariff codes of Canadian goods. CUSMA does not stop it.
Send me your inventory export, from a Shopify admin or a spreadsheet. I match every HS code in it against the list US Customs published, and I tell you which of your products the extra 50% now hits.
The duty is charged on the entry date, not the ship date, so a parcel already in transit can land inside it. The covered list runs to 58 tariff chapters. Apparel, cosmetics, furniture, jewellery, toys, wood goods and paper goods sit in it alongside the dairy and alcohol the news reported.