Canada and the United States enter the final 48 hours before sweeping 50 percent tariffs take effect, with negotiators mapping a package for President Trump but a wide gap still separating the two sides
WASHINGTON, August 17, 2026
With less than 48 hours remaining before the United States imposes 50 percent tariffs on roughly 20 billion US dollars’ worth of Canadian goods, negotiators for both countries spent the weekend in a final push to assemble a deal that could be presented to President Donald Trump before the Tuesday deadline. A one-hour virtual meeting on Sunday evening between Canada’s Minister responsible for Canada-US Trade, Dominic LeBlanc, and US Trade Representative Jamieson Greer was described by officials as “constructive,” but people familiar with the talks caution that significant differences remain unresolved on the eve of one of the most consequential weeks in the modern Canada-US trading relationship.
The Sunday session, held virtually in part because it coincided with Greer’s birthday, was the fifth meeting between LeBlanc and Greer since President Trump announced the new tariff wave in July, and the third in as many weeks. LeBlanc and Canada’s chief trade negotiator remained in Washington through the weekend rather than returning to Ottawa, a signal of how seriously the Canadian side is treating the deadline, and the chief negotiator joined Sunday’s virtual session alongside the minister.
“They took stock of the work that has been done by their respective negotiating teams, and discussions are continuing,” a spokesperson for LeBlanc said following the Sunday meeting. Ahead of the session, the minister’s office had framed the meeting as “an opportunity to take stock of the work that has been accomplished by their respective negotiating teams, and the work that still lies ahead, as we seek to reach a comprehensive deal that delivers for businesses, workers, farmers and families on both sides of the border.”
Behind the diplomatic language, the stakes are stark. Barring a breakthrough or a last-minute suspension by the White House, a 50 percent additional tariff will apply to a long list of Canadian exports entering the United States beginning Tuesday, August 19. The measure, invoked under Section 338 of the Tariff Act of 1930, covers Canadian dairy products, alcoholic beverages and motor vehicles as headline categories, but extends across a far broader universe of goods, from cement and building materials to furniture, apparel, fishing rods, swimming pools and hockey sticks.
An unprecedented legal instrument
President Trump signed three proclamations on July 20 invoking Section 338, a Depression-era statute that authorizes the president to impose duties of up to 50 percent on countries found to discriminate against US commerce. Trade lawyers have noted that the provision had never previously been used as the basis for tariff action in its near-century on the books, making the July proclamations a legal first and, in the words of one Washington law firm, a “50 percent opening bid” in the broader renegotiation of the United States-Mexico-Canada Agreement, known in Canada as CUSMA.
Two features distinguish this round of tariffs from earlier waves in the trade conflict that began in 2025. First, the duties apply even to goods that comply with CUSMA rules of origin, stripping away the shield that had protected the large majority of Canadian exports through previous escalations. Second, the proclamations contain no expiry date, meaning the tariffs remain in force until the president decides otherwise.
The White House has described the measure as a response to what it calls Canada’s “discriminatory treatment” of US dairy, alcohol and motor vehicle exports. The administration has pointed specifically to provincial bans on US liquor that several premiers imposed at the height of the trade war, to Canada’s supply-managed dairy system with its high over-quota tariffs, and to Canadian quotas affecting some US vehicles. According to the Office of the US Trade Representative, the targeted goods account for nearly 20 billion US dollars in annual imports from Canada. Canadian estimates put the affected trade at approximately 28 billion Canadian dollars, a figure cited by Randall Bartlett, deputy chief economist at Desjardins.
Mapping a deal to pitch to Trump
According to reporting by CBC News, negotiators on both sides spent the weekend mapping out the contours of a potential agreement that could be pitched to President Trump and Prime Minister Mark Carney early this week. A US official told CBC that both leaders would be given “options” following the latest round of talks, suggesting the negotiating teams have narrowed the universe of possible outcomes even if they have not closed the remaining gaps.
Those gaps are real. Sources familiar with the negotiations told Global News on Friday that a “big gap” remained between the two sides, and CBC reported that Canadian officials were not satisfied with the most recent US offer. Canada’s chief negotiator told a government advisory group on Friday that there was still a significant amount of work to do to reach an agreement, according to Bloomberg, and talks were expected to continue through the weekend, which they did.
The central difficulty, according to multiple reports, is asymmetry in what each side is prepared to give. Canada has signalled flexibility on several of the specific irritants Washington has cited. CBC News reported that Ottawa is prepared to see provincial bans on US alcohol lifted as part of a deal, and sources told CP24 that the American side wants US liquor back on Canadian shelves “immediately” upon any agreement. The Canadian side is also reported to be considering adjustments on dairy market access and the removal of remaining retaliatory tariffs on US automobiles.
In exchange, Ottawa wants relief from the sectoral tariffs the United States has imposed under Section 232 of the Trade Expansion Act of 1962, which currently include 50 percent duties on Canadian steel and aluminum, 25 percent duties on automobiles, and a 10 percent tariff on Canadian forest products, along with meaningful movement on softwood lumber duties. That is where the American appetite appears thinnest. According to CBC’s sector-by-sector analysis of the talks, the deal under discussion would see the United States refrain from imposing the new 50 percent levies while lowering, but not eliminating, the existing sectoral tariffs on steel and aluminum. The US side has shown little interest in granting comparable relief across all of Canada’s priority sectors of steel, aluminum, autos and softwood lumber.
Prime Minister Carney has been explicit about the scope of Canada’s ambitions. “We’re interested in a more comprehensive deal, a global deal that addresses the strategic sectors,” he told reporters earlier this month. “Will we get all of that by the 19th of August? We’ll see. But we want to have pathways in order to get that.” At an announcement in Toronto, Carney said he wanted “all 232s to be addressed,” a reference to the full suite of Section 232 sectoral tariffs. He has also suggested that Canada’s posture could harden if the deadline passes without an agreement, saying the days ahead could be “the time to get tougher.”
Domestic pressure on both flanks
Carney is negotiating under intense domestic scrutiny. Conservative Leader Pierre Poilievre sent the prime minister a public letter demanding “no more caving” to US demands, arguing that previous Canadian concessions, including the earlier removal of most retaliatory tariffs on CUSMA-compliant US goods, had failed to produce reciprocal moves from Washington. Poilievre has also insisted that any deal must remove US tariffs on Canadian softwood lumber, calling their continuation “unacceptable.”
On the other flank, defenders of supply management are drawing red lines around dairy. Quebec’s premier has maintained that no concessions should be made on the supply management system that governs Canadian dairy, eggs and poultry, a system protected by federal legislation passed in 2025 that constrains what Canadian negotiators can formally offer. Dairy remains one of President Trump’s most frequently cited grievances, and the White House explicitly named Canada’s dairy regime in justifying the Section 338 action, setting up a potential collision between US demands and Canadian law.
The provinces are also directly implicated in a way that is unusual for an international trade negotiation. Because the liquor bans that Washington wants lifted are provincial measures, and because provincial governments control alcohol distribution in Canada, any commitment Ottawa makes on that file requires provincial cooperation. CBC News reported that some provinces have resisted committing in advance, complicating the federal government’s ability to close that chapter of the deal. Negotiators, according to CBC, increasingly fear the tariffs will take effect on schedule as provinces and Washington dig in on their respective demands.
The economic stakes
Economists broadly agree that the new tariffs, if implemented and sustained, would deliver a meaningful but not catastrophic hit to the Canadian economy, concentrated in specific sectors and regions.
TD Economics estimates the measures would shave between 0.3 and 0.6 percentage points off Canadian GDP growth over the coming year. Douglas Porter, chief economist at BMO Capital Markets, has estimated the tariffs could ultimately cost the Canadian economy around 50,000 jobs, with a worst-case scenario approaching 100,000, though he considers the lower figure more realistic. Andrew DiCapua, principal economist at the Canadian Chamber of Commerce, has put the number of jobs vulnerable to layoffs or reduced hours at roughly 100,000.
The exposure is uneven. Dairy processors, distillers, wineries and brewers face the loss of hard-won US distribution. Vehicle manufacturers confront a 50 percent wall on top of an already tariffed landscape. Cement producers in Ontario and Quebec, furniture makers in Quebec, and apparel firms across the country all appear on the target list. For many of these companies, the United States is not simply the largest export market but effectively the only one at scale, and the tariff level is high enough to price them out of it entirely rather than merely squeeze margins.
Carney has sought to keep the threat in perspective, noting that Canada retains comparatively good access to the US market overall. Roughly 85 percent of bilateral trade remains tariff-free, largely because of the CUSMA exemptions that survived earlier rounds, and Canadian officials point out that the country’s average effective tariff burden remains lower than that faced by most other major US trading partners. But the Section 338 action erodes precisely that advantage, because it applies regardless of CUSMA compliance.
What importers and exporters should do now
For businesses on both sides of the border, the next 48 hours are about preparation rather than prediction. Customs brokers and trade advisers have spent the past month urging clients to model the landed-cost impact of a 50 percent duty on affected tariff lines, and the guidance now is to prepare for entry-date planning around Tuesday’s deadline. Goods entered for consumption, or withdrawn from warehouse for consumption, before 12:01 am on August 19 escape the new duty. That has produced a rush of accelerated shipments this weekend, echoing the front-running behaviour seen before earlier tariff deadlines in 2025.
Importers of record in the United States bear the legal liability for the duties, and advisers caution that a 50 percent tariff can quickly exhaust customs bond limits, requiring surety bond increases to avoid entry delays. Companies with flexibility are examining foreign trade zones and bonded warehousing to defer duty exposure while the negotiations continue, on the theory that a deal in the coming weeks could remove or reduce the tariffs before goods need to clear.
Canadian exporters, for their part, are being advised to revisit their contractual terms of sale. Firms selling on delivered-duty-paid terms absorb the tariff directly, while those selling free-on-board shift the burden to their US customers, with the commercial relationship determining who ultimately blinks. Trade lawyers also note that because the Section 338 duties ignore CUSMA origin, the usual mitigation strategy of maximizing North American content offers no protection here, a point some businesses are said to have missed in their planning.
How the relationship got here
The August 19 deadline is best understood as the latest chapter in a trade conflict that has run continuously since early 2025, reshaping a relationship that had been governed for three decades by free trade agreements. The first Trump-era tariffs of this cycle arrived in the winter of 2025, justified initially on border security grounds, followed by sectoral actions under Section 232 covering steel, aluminum, automobiles and eventually forest products, copper and other categories. Canada responded with counter-tariffs on tens of billions of dollars of US goods, and several provinces pulled American alcohol from liquor store shelves, a measure that infuriated the White House and features prominently in the legal justification for the current Section 338 action.
The relationship has since cycled through escalations and partial truces. In September 2025, the Carney government removed most Canadian retaliatory tariffs on CUSMA-compliant US goods, a unilateral gesture intended to restart stalled negotiations. Ottawa argued the move preserved counter-tariffs where they mattered most, on steel, aluminum and autos, while lowering costs for Canadian consumers and businesses. Critics, including the Conservative opposition, argue the concession earned nothing in return, a critique given fresh force by the July proclamations.
The legal landscape shifted again in February 2026, when the US Supreme Court ruled on challenges to the administration’s use of emergency economic powers for across-the-board tariffs, forcing a restructuring of parts of the tariff architecture and prompting the administration to lean more heavily on sector-specific and statute-specific instruments. Section 338, dormant since its enactment in 1930, is the newest such instrument, and trade lawyers on both sides of the border regard the Canada proclamations as a test case for its use against other trading partners.
Looming over everything is the scheduled review of CUSMA itself, with formal consultations already underway ahead of the agreement’s 2026 joint review. Analysts at law firms tracking the dispute have described the Section 338 tariffs as leverage accumulation ahead of that review, in which the United States is expected to press for fundamental changes on dairy, automotive rules of origin and dispute settlement. For Canada, that framing carries a sobering implication: even a deal this week that removes the 50 percent tariffs would settle only a battle, not the war.
Markets hold their breath
Financial markets have so far treated the deadline with wary calm rather than panic, in part because investors have learned that tariff announcements in this conflict are frequently revised, delayed or negotiated away. The Canadian dollar has traded in a narrow range through August, and Canadian equity benchmarks have been supported by strength in materials and energy, sectors largely outside the new tariff list. Bank economists note, however, that the market response would sharpen quickly if the tariffs take effect and Canada retaliates, with the loonie, auto parts suppliers, food processors and alcohol producers the most exposed tickers on Bay Street.
RBC Economics has characterized the Canadian economy as showing solid growth against narrow tariff headwinds, an assessment that assumes the conflict remains contained to the currently targeted sectors. The risk case is contagion: a breakdown this week that spills into the CUSMA review, freezes business investment for another year and pushes both governments toward broader measures. Business investment in Canada has already been the principal casualty of the two-year conflict, with surveys by the Bank of Canada consistently showing firms deferring capital spending amid policy uncertainty, a drag that compounds quietly each quarter regardless of which tariffs are actually collected.
The road from here
Several scenarios remain possible before Tuesday. A full agreement announced before the deadline would suspend or withdraw the tariffs, likely paired with immediate Canadian action on liquor access and commitments on dairy and autos. A partial arrangement could see the White House delay implementation to allow talks to conclude, a pattern President Trump has followed with other trading partners. Or the tariffs could simply take effect, with negotiations continuing under conditions Ottawa would regard as coercive, and with Carney facing pressure to make good on his suggestion that Canada would get tougher, potentially through renewed counter-tariffs.
The Washington Post reported over the weekend that industry executives and trade specialists following the talks believe the two sides are inching closer to a framework that would avert the harshest outcome. But officials on both sides have been careful not to promise a result, and the experience of previous deadlines in this trade conflict counsels humility. Deals have emerged at the last minute before; so have escalations.
What is different this time is the scale. A 50 percent tariff on 20 billion dollars of trade, imposed under a statute never before used, with no expiry date and no CUSMA shield, would mark the deepest rupture yet in a trading relationship worth roughly 3.6 billion Canadian dollars a day. Whether Tuesday brings a handshake or a tariff wall, the outcome will shape the CUSMA review negotiations that loom over the remainder of 2026, and with them the architecture of North American trade for years to come.
The view from the border
Away from the negotiating rooms, the deadline is already reorganizing daily commerce. Customs brokers on both sides of the border report a weekend surge of accelerated entries as importers race to clear goods before Tuesday, and trucking firms describe loaded trailers being prioritized by tariff exposure rather than delivery schedule. Warehouse operators in Buffalo, Detroit and Blaine say space has tightened as US buyers stockpile Canadian inventory at pre-tariff prices.
For smaller exporters, the weekend has been about triage. Trade advisers describe phone calls with family-owned food processors, craft distillers and equipment makers working through the same checklist: which products are on the proclamation annexes, which shipments can move early, which US customers will share the burden and which will simply stop ordering. The Canadian Federation of Independent Business has warned that small firms, lacking the compliance staff and financial hedges of large corporations, will absorb a disproportionate share of the shock if the tariffs proceed, and has urged both governments to settle before lasting damage is done to supply relationships built over decades.
There is also a human rhythm to these deadlines that borderland communities have come to know well. Cross-border towns from Windsor-Detroit to Stanstead-Derby Line have lived through six of these countdowns since 2025. Local chambers of commerce describe a weary professionalism: businesses no longer panic, but they no longer plan long-term either. Investment decisions wait, hiring waits, expansion waits. Economists call it uncertainty drag; on the ground it looks like a hundred small postponements accumulating into a slower economy on both sides of the line.
For now, the negotiators keep meeting. As LeBlanc put it after an earlier session in this marathon, “we’ll have as many meetings as it takes.”