Finance News · Tuesday, 25 August 2026

01 · Briefing · what happened

The US taxed $20bn of Canadian goods at 50%. Canada answers on September 8.

Finance News 2 min 15 sources

Trade talks with America's second-biggest partner collapsed on Friday, the tariffs landed on Saturday, and the Canadian dollar was the worst big-currency performer on Monday. Trump has now threatened 50% on every car and truck too.

50%

US tax on Canadian goods

on about $20bn of imports, from Saturday [1]

Sept 8

Canada's answer starts

matching tariffs, dollar for dollar [1]

60%

Carney's approval rating

up three points in the week the talks broke [2]

5.25%

US 30-year borrowing rate

near its highest in about two decades [5]

At a glance

Washington put a 50% tax on about $20bn of Canadian goods on Saturday, two days after trade talks collapsed [1].
Canada will answer dollar for dollar from September 8, on steel, dairy, farm equipment, paper and electronics [1].
Trump then threatened 50% on every car and truck Canada sends south, widening the fight well past the first list [3].
The Canadian dollar was the biggest loser among the ten major currencies on Monday, and steadied at 1.3844 to the US dollar on Tuesday [3][4].
Canada has more to lose as the smaller, more open economy, yet Mark Carney's approval rose three points to 60% in the week he walked away [1][2].
US inflation has run above the 2% target for more than five years, and Fed chair Kevin Warsh gives his first Jackson Hole speech on Friday [12].
The same day brought wider US sanctions on Iran and a hint that the Treasury may spend its cash pile on buying back long bonds [4][11].
Long-term US borrowing costs eased by about 0.05 percentage points, gold hit a three-month high, and bitcoin climbed back towards $80,000 [3][6][7].

Forces in play

US-Canada rupture High↑

50% on $20bn of goods on Saturday, and a threat to tax every car and truck [1][3]

Doubt about the dollar Building↑

the dollar had its best day in two weeks and is still near a three-month low, while gold hit a three-month high [3][6]

Government borrowing costs High↓

the 30-year rate sits at 5.25%, near a two-decade high, though it dropped by about 0.05 percentage points on Monday [5][3]

Appetite for risk Building↑

bitcoin is back near $80,000 after more than $4bn of bets against it were forced to close [7]

In play Mark Carney — Canada's prime minister; walked away and will match the tariffs from September 8 Donald Trump — imposed the 50% tax and threatened the same on all Canadian cars and trucks Scott Bessent — US Treasury chief; widened Iran sanctions and is buying back long-dated government bonds Kevin Warsh — Fed chair, whose first Jackson Hole speech on Friday is the week's other big event

How it unfolded

Last week negotiators say a deal is close [1]
Friday talks collapse, each side blaming the other [1]
Saturday the US taxes about $20bn of Canadian goods at 50% [1]
Monday the Canadian dollar is the worst big-currency performer; Trump threatens cars and trucks [3]
September 8 Canada's matching tariffs are due to begin [1]

Where this points

Watch whether Canada's September 8 list actually takes effect, because the fortnight between the announcement and the date is exactly when buyers on both sides start signing with somebody else [1].

Full briefing

Why the talks broke

Canada and the United States looked close to a deal last week. On Friday the talks collapsed, and on Saturday Washington put a 50% tax on about $20bn of Canadian goods, spanning dairy, wine, wood products and ceramics [1]. Prime Minister Mark Carney said the Americans had “asked too much and offered too little” [1]. He will answer dollar for dollar from September 8, on steel, dairy, farm equipment, paper and electronics [1]. Trump then threatened 50% on every car and truck Canada sends south [3].

The politics are the strange part. Canada is the smaller and more open economy, so it has more to lose from a trade war; strategists at the bank ING said exactly that on Monday [1]. Yet Carney’s approval rating rose three points to 60% in the week he walked away, and premiers from three different parties backed him [2]. Karl Schamotta of Corpay reads it as a bet that November’s US midterm elections will blunt the tariff drive [2]. Refusing has become cheaper at home than agreeing.

Three announcements, one market

Monday was three Washington stories at once, and money moved between them rather than out of them. The Treasury signalled it may spend part of its roughly $1 trillion cash account buying back long-dated government bonds [11]. Scott Bessent widened sanctions on Iran, warning other countries to cut ties or lose access to the dollar system [4]. Long-term borrowing costs fell about 5 basis points, or 0.05 percentage points [3]. The dollar had its best day in two weeks and is still near a three-month low [3][4]. Gold reached its highest since mid-May [6].

Not everyone thinks the bond scare is real. CNBC’s Mike Santoli notes the 10-year rate rose by four hundredths of a percentage point last week [14]. Two economists writing in Fortune call the buyback a pointless intervention that markets will outsmart [15]. And how big is the bitcoin move? It depends where you start counting: more than 20% in three days [7], 23% in five [8], 25% in just over a week [3]. The 30-year rate at 5.25% is a 19-year high to one outlet and a 20-year-plus high to another [13][10].

The price that actually reaches you

The number to watch is not on any of those screens. Diesel futures now trade about $100 above crude oil, because the world is short of refining capacity [9]. Ukrainian drones have wrecked Russian refineries, Russia has banned exports, and the closed Strait of Hormuz has cut Gulf supply [9]. Diesel is 3% to 5% of the cost of growing wheat, soybeans and corn, and it is what every truck burns [9]. One food distributor, Performance Food Group, absorbed $16m of extra diesel cost in a single quarter and passed it on through surcharges [9]. Former Goldman Sachs analyst Jeff Currie put it plainly: diesel is the cost base of everything [9].

02 · Lesson · why it matters

The tax can be cancelled. The customer does not come back.

A tariff is a number, and numbers move both ways. What a tariff destroys is a relationship, and relationships only move one way.

How it works

A tax makes a supplier too expensive
The buyer pays once to find another one
New contracts, tooling and approvals lock in
The tax is later lifted
Coming back means paying that switching cost again
So the trade does not return with the tax

The twist

A tariff can be cancelled in an afternoon, but the buyer who spent six months finding a new supplier has no reason to spend six more coming back.

Where you've seen this

A customer who left

winning them back costs far more than keeping them would have

A closed factory

the machines are sold and the trained crew scatters, so reopening means starting over

A scrapped rail line

once the track is lifted, restoring the service costs more than never stopping it

A friendship after a row

the argument ends, and the habit of calling does not restart on its own

The catch

It does not bite everywhere. Plain commodities like lumber or wheat switch back the moment the price does, because nobody had to retool to buy them. The ratchet is strongest where the relationship took work to build.

Full lesson

Two clocks, running at different speeds

On Saturday the United States put a 50% tax on about $20bn of Canadian goods. Canada will answer on September 8. Both of those are decisions, and both can be reversed. A president can lift a tariff in an afternoon. A prime minister can call off a retaliation list before it starts.

Underneath the decisions there is something slower. Somewhere in Ohio there is a buyer who has been ordering Canadian ceramics for eleven years. This week that buyer starts phoning Portugal.

The switching fee nobody writes down

Changing supplier is not free, and the cost is almost never a price. It is time. Somebody has to find the new firm, visit it, test a sample and argue about tolerances. Then redraw a contract, retrain a warehouse, re-certify a food safety chain. Then retool a machine that was set up for the old part.

Call it the switching fee. It is paid once, in weeks and worry rather than dollars, and then it is gone. Economists call a cost like that sunk: spent, unrecoverable, and no longer a reason to do anything.

That is the whole mechanism. Before the tariff, the switching fee kept the Ohio buyer loyal - changing was more trouble than it was worth. The tariff made staying more expensive than the fee. So the buyer paid it.

Why the tax comes off and the trade does not

Now lift the tariff. The Ohio buyer is eleven months into a Portuguese contract, with new tooling and a new inspection routine. Going back to Canada means paying the switching fee a second time.

There is no reason to. The Canadian supplier is no cheaper than the Portuguese one now that the tax is gone; it is merely equal. Equal does not buy back a customer. So the tariff disappears and the trade does not return with it.

This is why a trade fight is not a knob you can turn both ways. It is a ratchet. Each week it runs, some share of the flow moves permanently, and no later concession moves it back.

Who is inside this

The people who feel the ratchet are rarely the people at the table. A dairy farmer in Quebec loses a buyer who will not return. A cabinet shop in Michigan pays more for wood for a decade after the argument is settled. A shipping clerk in Halifax finds the volumes never recover.

None of them chose the fight, and none of them can undo their own part of it - the Ohio buyer who switched was being sensible, not disloyal. That is the uncomfortable part. The permanent damage is done by thousands of individually reasonable decisions, each one made by somebody with no view of the whole.

What the ratchet does not touch

It does not bite everywhere, and knowing where it bites is half the lesson. Plain commodities are almost immune. Lumber is lumber; wheat is wheat. There is nothing to retool, nothing to re-certify, so the flow snaps back the moment the price does.

The ratchet is strongest exactly where the relationship took work to build - specialist parts, regulated food, engineered equipment, anything with a certificate attached. Which is to say it is strongest in the trade that took the longest to create.

Two weeks is not nothing

Between now and September 8 there is a fortnight in which nothing official happens. It looks like a pause. It is the opposite: it is the window in which buyers on both sides quietly place their first order somewhere else.

Nobody in the negotiating room can see which of those orders will turn out to be the permanent ones. Neither can we. Hold on to that when the deal is finally announced, the tariffs come off, and the numbers still do not go back to where they were. The question by then is not what the tax did. It is what the fortnight did.

03 · Lab · your turn

The Ratchet

Rehearse how long to hold out in a trade fight, and feel which of the losses come back and which do not.

04 · Hope · carry this

Canada and the United States built the deepest trading relationship on earth without liking each other every year. The ordinary work of buying and selling carried on through every argument, and it is carrying on this morning.