Notice from WSI - CBP Guidance – Additional Duties on Certain Goods from Canada

Notice from WSI - CBP Guidance – Additional Duties on Certain Goods from Canada

Dear Valued Clients and Partners,

CBP has issued updated guidance (CSMS # 69606660) regarding the additional duties imposed on certain goods imported from Canada.

Effective for goods entered for consumption, or withdrawn from warehouse for consumption, on or after August 22, 2026, the following additional duties apply:

  • 50% additional duty on certain Canadian-origin products covered under HTSUS headings 9903.03.12–9903.03.14.
  • 0% additional duty for certain steel, aluminum, copper and derivative products, passenger vehicles and parts, trucks and parts, wood products, semiconductors, and certain pharmaceutical products covered under HTSUS heading 9903.03.15.
  • 0% additional duty for certain civil aircraft, aircraft engines, parts, components, and flight simulators covered under HTSUS heading 9903.03.16.

The applicable Chapter 99 tariff must be reported in the proper sequence on the entry summary, followed by the underlying Chapter 1–97 HTS classification.

Please note that these additional duties are in addition to any applicable antidumping/countervailing duties, Section 232 duties, taxes, fees, or other charges, unless specifically excluded under the applicable provisions.

If you have shipments from Canada, please provide the product details and country of origin so we can review the applicable HTS classification and determine whether the additional duty applies.

We will continue to monitor CBP updates and advise of any further changes.

Reference documents: the full CBP guidance (CSMS # 69606660) is attached below, and the list of Chapter 1–97 HTS classifications covered by each Chapter 99 heading is available here: Section 338 Canada HTS List (PDF).

Download CSMS 69606660 - CBP Guidance - Section 338 Additional Duties on Certain Goods of Canada.pdf

Sincerely,

WSI Team