Canada: Counter-tariffs on U.S. products effective September 8, 2026
Date of publication: August 27, 2026.
What happened
On August 25, 2026, Canada's Department of Finance announced counter-tariffs on U.S. products in response to U.S. Section 338 and Section 232 tariff measures. The tariffs take effect at 12:01 a.m. on September 8, 2026, and apply at three rates—15%, 25%, and 50%—based on matching the applicable U.S. rate for the same goods under Sections 338 and 232 tariffs.
The counter-tariffs cover approximately $27.6 billion in imports from the United States. Targeted sectors include steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics. Canada's action matches the U.S. decision to impose a 50% tariff on $27.6 billion of Canadian goods, effective August 22, 2026.
The tariffs apply only to goods that originate from the U.S. under the Determination of Country of Origin for the Purpose of Marking Goods (CUSMA Countries) Regulations. Goods in transit to Canada on September 8 are exempt from the new rates. The product list identifies tariff items at the tariff-item level, with many goods listed at a 25% rate—covering live fish, frozen fish, fish fillets, shellfish (crustaceans and molluscs), processed fish products, and related items.
Why it matters for trade compliance teams
- Origin verification becomes critical.Teams managing U.S. imports must confirm country-of-origin status under the regulations cited, as only genuine U.S. goods are subject to these tariffs. Goods produced elsewhere or transshipped through the U.S. may have different tariff treatment.
- Tariff classification and rate planning are essential.The counter-tariffs are product-specific at the tariff item level. Import teams should verify the exact HS classification for their goods and check the Canada Border Services Agency (CBSA) list to confirm applicable rates.
- Documentation and timing considerations.Goods in transit on September 8 avoid the new tariffs. Importers with shipments en route should track delivery timing and notify customs brokers and logistics providers of the effective date.
- Cost modeling and supplier assessment may shift.Once effective, the tariffs will affect import costs; teams responsible for sourcing decisions should model the impact and review supply chain alternatives.
What to watch next
- Administrative guidance from CBSA.The Canada Border Services Agency website will post additional implementation details; monitor the Customs Notices section for clarifications on origin determination, documentation, and rate application.
- Possible developments in U.S.–Canada trade discussions.The tariffs are responsive measures. Businesses should monitor for amendments or additional announcements about underlying U.S. tariffs or bilateral negotiations that could affect the scope and rates of Canada's counter-tariffs.
For the latest regulatory developments affecting global trade, visit the ONESOURCE Global Trade Regulatory Insights page.