President Donald Trump postponed until August 22 the collection of additional 50% duties on covered Canadian entries. The delay has practical effects for affected exporters and U.S. importers while negotiations continue.
The duties had been scheduled to begin August 19.
Key Facts
- The new effective time is 12:01 a.m. Eastern on August 22, 2026.
- The additional duties apply to specified Canadian products, not all goods from Canada.
- The three-day suspension does not rescind the duties or establish a completed trade agreement.
- Federal agencies must suspend collection and process any required refunds under applicable law and standard customs procedures.
What the proclamation changes
The August 18 proclamation amended three presidential actions issued July 20.
Those actions concerned Canadian measures affecting alcoholic beverages, dairy products and motor vehicles.
Each July proclamation imposed an additional 50% ad valorem duty on products identified in its annex.
An ad valorem duty is a tariff calculated as a percentage of a product’s value.
The July actions cited Section 338 of the Tariff Act of 1930 as their authority.
That law allows the president to impose, amend or suspend certain duties after finding that another country disadvantages U.S. commerce.
The August action replaced the original August 19 effective date with 12:01 a.m. Eastern on August 22.
It also directs federal agencies to suspend collection as soon as practicable.
If implementation requires refunds, Customs and Border Protection must process them under applicable law and its standard procedures.
What remains unresolved
The proclamation postpones the duties for three days but does not withdraw or permanently cancel them.
The proclamation itself does not set out a completed bilateral agreement or resolve the countries’ broader trade dispute.
The White House attributed the pause to the status of negotiations and reports from senior executive officials about Canadian commitments.
In the proclamation, those representations appear as the U.S. executive branch’s account, not as a neutral adjudication or bilateral agreement.
The administration maintains that Canadian policies discriminate against U.S. commerce in the three covered areas.
Its proclamations point to provincial restrictions on U.S. alcohol, cheese quota rules and Canada’s treatment of U.S. vehicles.
Canada disputes the U.S. position
Canadian Prime Minister Mark Carney has called the U.S. tariff measures unilateral and said earlier U.S. actions violated CUSMA.
CUSMA is Canada’s name for the United States-Mexico-Canada Agreement.
Carney said Canada had offered detailed proposals to resolve the dispute and modernize the trade agreement.
He also said Canada remained ready for intensive discussions and would support its workers, farmers, businesses and families.
Canada’s legal position, like the administration’s discrimination findings, has not been resolved by a court or other neutral decision-maker in these records.
Practical effect for businesses
The delay matters most to Canadian exporters and U.S. importers handling products within the annexed tariff classifications.
For those businesses, the proclamation moves the point when the added charge may attach to goods entered for U.S. consumption.
Companies must check the relevant tariff classification and exclusions because the action is not a blanket duty on every Canadian product.
The July proclamations exclude some goods already subject to specified national-security duties and qualifying civil-aircraft products.
What happens next
U.S. and Canadian officials can continue negotiating before the August 22 effective time.
A later official action could again change the duties, but the August 18 proclamation controls unless it is superseded.
