At 12:01 AM Eastern on March 4, 2025, the 25% tariff on most Canadian goods went live, with energy products tariffed at 10%. The 30-day pause negotiated on February 3 expired without an extension. By breakfast, every cross-border carrier in Canada was running the same calculation: which loads cleared, which didn't, and what the next 24 hours look like.
Twenty-four hours in, here is what we are seeing.
12:01 AM March 4: The Tariff Goes Live
Trump declined to extend the pause despite intense Canadian lobbying through February. Reuters reported the President framed the tariffs as a fentanyl-driven national security action under the International Emergency Economic Powers Act. Canadian goods are now subject to a 25% duty on entry into the United States, with energy commodities tariffed at 10%.
For a carrier moving a $50,000 load of finished goods from Ontario to Michigan, the tariff adds $12,500 in landed cost. That cost falls first on the importer of record, but it works through to the shipper, the buyer, the consumer, and eventually back to freight rates as volumes adjust.
Canada's Retaliation: $30 Billion in Counter-Tariffs
Within hours of the US tariff taking effect, Trudeau announced 25% Canadian counter-tariffs on $30 billion of US goods, with an additional $125 billion to follow within 21 days if the US tariffs remained. The Department of Finance announcement targeted a deliberately politically painful basket of products including Florida orange juice, Kentucky bourbon, Tennessee whiskey, peanut butter, motorcycles, and household appliances.
Provincial governments piled on. Ontario Premier Doug Ford announced LCBO would pull all American liquor from store shelves and threatened to add a 25% surcharge on electricity exports to Michigan, New York and Minnesota. CBC reported the move could affect 1.5 million homes in those three states.
"There is absolutely no justification or need whatsoever for these tariffs today. This is a very dumb thing to do." - Justin Trudeau, March 4, 2025
What Crossings Actually Looked Like
The hardest data point was the morning rush at the border. CBSA and CBP did not impose new procedures on March 4 itself, but customs brokers were processing duty calculations on every northbound and southbound load. Wait times at major crossings were elevated but not catastrophic.
The bigger story was on the financial side. The Canadian dollar fell to its lowest level since 2003 in pre-market trading. The TSX opened down sharply. Rail and trucking stocks were among the hardest hit.
The Shipper Impact in Hours, Not Months
Three things happened to shippers within the first 24 hours of the tariff. Cancelled or delayed orders started showing up in carrier dispatch boards by mid-afternoon on March 4. Spot rate inquiries surged for any carrier with capacity to expedite tariff-sensitive freight that hadn't cleared yet. Long-term contract conversations that had been on hold pending the tariff outcome resumed, but with explicit tariff escalator language in every draft.
The Canadian Trucking Alliance estimated that, depending on how long tariffs persist, freight volumes on cross-border lanes could drop by 15-30% in the first quarter affected. That projection assumes shippers respond by sourcing differently, not by absorbing the cost long-term.
What Carriers Are Watching For Next
Three dates matter in the next two weeks. March 12: the Section 232 steel and aluminum tariff is currently scheduled to land, regardless of the IEEPA situation. March 9: the Liberal Party chooses Trudeau's successor. April 2: Trump's reciprocal tariff "Liberation Day" is currently scheduled, with broader country-by-country tariff rates expected.
Confirm Importer of Record Status on Every Load
Tariffs are charged to the importer of record. Make sure every cross-border BOL clearly identifies who is paying the duty before the load tenders. Surprises here are surprises in five-figure denominations.
Use CUSMA Origin Certificates Aggressively
The current order does not exempt USMCA-compliant goods, but pressure to carve them out is intense. The carriers and shippers who have origin documentation ready will be first in the queue when carve-outs are issued.
Re-Quote Open Tenders
If you tendered loads before March 4, those quotes were priced in a different world. Re-engage on quote validity before accepting awards.
Track Provincial Retaliation Separately
Ontario's electricity surcharge and BC's procurement bans operate independently of Ottawa's countermeasures. Watch each province's announcements alongside the federal list.
Plan for the Steel and Aluminum Date
March 12 is the next hard tariff line. Steel and aluminum shippers should treat that date as a separate event with its own planning cycle, not a sub-clause of the IEEPA tariff.
Keylink runs Canada-USA full truckload lanes for shippers who need to know what their freight is doing on a tariff morning. We document, communicate, and adapt.
Talk to Our Team →The Bottom Line
March 4 marks the day Canada-US trade became formally adversarial. The tariffs are live. The retaliation is live. The market has begun its adjustment. What comes next is a function of how long either side is willing to absorb pain, and the political calculations on both sides of the border between now and the next round of US announcements.
For Canadian carriers, the operating reality is clear: tariffs are now part of how cross-border freight prices, books, and dispatches. Volumes will rebalance. Lanes will reprice. The carriers and shippers who handle it best will be the ones who treat the tariff as the new floor, not as a temporary disruption.
Keylink will keep our cross-border lanes running, our paperwork tight, and our shippers informed. The freight has to keep moving. So do we.
