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Canada's surtax remission: code 25-0466C explained

Canada's counter tariffs on U.S. goods don't have to hit Canadian producers. Here is who can get the surtax back.

Updated October 26, 2026 · By DutyHarbor Advisory, 15+ years running imports and exports across Canada, the U.S. and India

If you import U.S. goods for manufacturing, processing, farming or food and drink packaging, enter code 25-0466C and the surtax can be remitted. Past payments can be claimed within two years.

Who qualifies

What counts, and what doesn't

CountsDoesn't count
Direct inputs that end up in the productFuel and lubricants
Production machinery integral to the productMaintenance supplies
Empty packaging for human food and drink, such as cansPackaging for animal food or personal use

How to claim

  1. Enter 25-0466C in the special authority field on the customs accounting document.
  2. For past entries, correct or adjust them in the CBSA portal. Claims can go back two years from import.
  3. Keep contracts and invoices that show the production use, with the import documents.
  4. Goods must be imported before July 1, 2027 unless the order is extended.

Check your surtax payments

DutyHarbor's Money back tool includes a Canadian surtax refund check that flags imports where you likely didn't need to pay.

Check my refunds

Questions

What is code 25-0466C?

The special authority code entered on the customs accounting document to claim remission of Canada's surtax on U.S. goods used in manufacturing, processing or packaging.

How far back can I claim?

Within two years of the date of import.

Does it cover the September 2026 surtax?

Yes. SOR/2026-186 extended the existing 2025 remission order to the new surtax.

Sources

This guide is general information, not legal or customs advice. Confirm your product code, origin and duty with a licensed customs broker before you act.