The Canada–US trade war, explained for the businesses caught in it. Plain-language guides, live trackers, and refund-process walkthroughs — every claim linked to the primary source.
What just happened
On August 22, 2026, US 50% tariffs on roughly US$20 billion of Canadian goods took effect after trade talks collapsed. Canada has announced matching counter-tariffs starting September 8. The rules are moving fast — our tracker and news coverage keep the current state in one place.
Latest updates
- Surtax Refunds: How Amending Your Commercial Accounting Declaration Works
- CUSMA Certification of Origin: How to Claim Preferential Treatment Properly
- CARM for Small Importers: The Obligations You Now Own
- IEEPA Tariff Refunds: What the CAPE Process Means for Canada-Origin Entries
- Section 338 Tariffs on Canadian Goods: A Guide for US Importers
- Chapter 98 and 99: The Automatic Tariff Waivers Many Importers Never Check
Start here
New to tariffs? Start with the Canada–US Tariff Tracker for the current state of play, check whether your products are exposed with the counter-tariff checker, and read how we verify everything we publish. The full guides library is live — remission refunds, duty drawback, duties relief, CARM, and CUSMA certification — and done-for-you template kits are launching on our Templates page.
Get the Monday brief
The 5-minute Monday email on Canada–US tariffs — what changed, what it means, primary sources linked. We will also email the moment the official September 8 list is published.
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