Bonds, Mortgages and Your Line of Credit: What the 2026 Bond Selloff Means for Canadian Households

Most Canadians never buy a bond directly, and most never will. Yet the bond market sets the price of the largest financial commitment the average household will ever make. If you have a mortgage, a home equity line of credit, or a renewal coming up, the bond market is already writing you a bill. This is a plain explanation of what a bond is, what is happening in the market right now, why it is happening, and exactly how it reaches your monthly payment.

All figures are as at 18 to 20 September 2026.

What Is a Bond, Really?

A bond is a loan you make to somebody else, usually a government or a large company, on fixed terms. Say the Government of Canada wants to borrow money for five years. It issues a bond with a face value of $1,000 and promises to pay you, for example, $35 a year in interest and then return your $1,000 at the end. Buy it at issue and your return is 3.5% a year. That annual payment is called the coupon, and the return you earn is called the yield.

Here is the part that trips people up. Once that bond exists, it can be traded. The $35 annual payment is fixed and never changes. But the price of the bond moves every day.

Suppose interest rates rise and newly issued five year bonds now pay $45 a year. Nobody will pay you $1,000 for a bond paying $35 when they can get $45 elsewhere. So the price of your bond falls, to maybe $955, until the $35 payment plus the gain back to $1,000 at maturity adds up to a competitive return. That is the single most important mechanic in finance and it is worth saying twice:

When bond prices fall, bond yields rise. When bond prices rise, bond yields fall. They always move in opposite directions.

When you read that there has been a “bond selloff,” it means investors have been selling bonds, prices have dropped, and yields have gone up. And when yields go up, the cost of borrowing goes up for everyone, because government bond yields are the floor under every other loan in the country. Nobody lends to you more cheaply than they lend to Ottawa.

What Is Happening in the Bond Market Right Now

Canadian and global bond yields have risen hard over the past year.

BenchmarkNowOne year agoChange
Government of Canada 10 year3.88%approx 3.20%up 68 bp
Government of Canada 5 year3.65%lowerrising
US 10 year Treasury5.00%approx 4.13%up 87 bp

The US ten year yield touched 5.04% earlier in September, its highest level since 2007. That is not a small move. It is a generational one, and Canada does not get to opt out of it. Meanwhile the Bank of Canada has held its policy rate at 2.25% since October 2025. So we have an unusual split: long term borrowing costs set in the bond market have jumped, while short term borrowing costs set by the central bank have not moved at all. That split is about to matter a great deal to you, and I will come back to it.

Why Is This Happening?

Three forces, in order of importance.

One: an oil shock. The Strait of Hormuz has been effectively closed since late February 2026, and roughly a quarter of the world’s seaborne oil normally passes through it. Brent crude sits near $104 a barrel, up about 56% year over year. That has pushed Canadian headline inflation back to roughly 3%, almost entirely through gasoline. Core inflation, which strips out the volatile stuff, is a much calmer 2.2%.

This is the central bank’s nightmare scenario, and it is worth understanding why. A central bank cannot produce a barrel of oil. Raising interest rates does not unblock a shipping lane. So a supply shock leaves policymakers with a genuinely bad choice: do nothing and risk high prices becoming embedded in wage and price expectations, or raise rates into an economy that the shock is already squeezing. There is no good option, only a least bad one.

Two: spillover from the United States. The Federal Reserve has raised its target range to 3.75% to 4.00% and most of its policymakers expect at least one more increase before the end of 2026. Capital moves freely across the border. When American bonds pay more, Canadian bonds have to pay more to compete, regardless of what our own economy needs. Concerns about the sheer volume of US government debt issuance have added to the pressure.

Three: the Canadian economy has stopped cooperating with the case for low rates. GDP grew 3.3% in the second quarter after a weak first quarter. Unemployment edged down to 6.4% in July. Consumption was solid, housing activity rebounded, and exports and business investment rose sharply. A weak economy justifies cheap money. This one is no longer weak enough to make that argument.

Put those together and the market has repriced. Before the Bank of Canada’s 2 September decision, traders put the odds of a hold at 94%. By mid September the October 28 meeting had become close to a coin flip between holding and raising. Market pricing now points to a policy rate of roughly 3.25% by the middle of 2027.

Economists are more relaxed than traders. TD and BMO expect no move through 2027. RBC sees 3.25%. Scotiabank sees 3.00%. CIBC and National Bank see 2.75%. That disagreement is itself useful information: nobody credible is forecasting lower, and the debate is only about how much higher.

What This Means for Your Mortgage

Canada runs a two track system, and almost nobody explains this clearly, so here it is.

Fixed mortgage rates come from the bond market. Lenders price a five year fixed mortgage off the five year Government of Canada bond yield and add a spread to cover their costs, risk and profit. Today that yield is 3.65% and the best insured five year fixed is 4.24%, a spread of about 0.6 points. Uninsured and posted rates carry a wider spread, which is why the advertised range runs all the way to 5.99%. When the bond yield moves, fixed mortgage rates follow within days or weeks. The Bank of Canada has very little direct say.

Variable mortgage rates come from the Bank of Canada. Lenders set their prime rate off the central bank’s policy rate, then quote variable mortgages at prime minus a discount. Prime has sat at 4.45% since 29 October 2025 because the policy rate has not moved.

Here is where things stand today:

ProductBest available rateWhat drives it
5 year fixed, insured4.24%GoC 5 year bond yield, currently 3.65%
5 year fixed, big bank4.34%same
5 year variable3.30%prime of 4.45% less a discount
2 and 3 year fixedunder 4.00%shorter bond yields

Notice that variable is currently almost a full percentage point cheaper than fixed. That looks like a bargain. It is not a bargain, it is a warning. The bond market has already priced in the rate increases it expects, which is why fixed rates are higher. Variable rates have not, because the Bank of Canada has not acted yet. If the market is right and the policy rate reaches 3.25% by mid 2027, prime goes to roughly 5.45% and that 3.30% variable becomes about 4.35%.

Consensus forecasts have the five year fixed at roughly 4.57% by the middle of 2027. So the expected path over the next year is modestly higher for fixed, up about 30 basis points, and substantially higher for variable, up about 100 basis points.

If you are renewing in the next year, the practical implications are:

  • Your renewal is unlikely to be the disaster the headlines suggest. If your current rate is anywhere near 4%, you are renewing into a similar number, not double it.
  • Most lenders will hold a rate for you up to 120 days before your maturity date. That is a free option. If rates rise you are protected, and if they fall you take the lower rate. There is no reason not to use it.
  • Since November 2024, federally regulated lenders no longer have to apply the stress test when you move an uninsured mortgage to a new lender on a straight switch, meaning same balance, same amortization, no new money. This is the most valuable change in Canadian mortgage rules in a decade and over 70% of Canadians still do not use it. Shopping your renewal typically beats your incumbent’s first offer by 20 to 50 basis points.
  • Shorter terms deserve a look. Two and three year fixed rates are under 4%. If you think the oil shock eventually resolves, and there is a reasonable case that it does, a shorter term at a lower rate may beat locking five years at 4.5% or more.

If you are on a variable rate, you have been winning for the past year and that run may be ending. This is a good moment to work out what your payment looks like at prime plus one percentage point, and whether that is comfortable.

What This Means for Your Line of Credit

This is the part that gets the least attention and probably deserves the most.

A home equity line of credit is a pure variable rate product. It is quoted as prime plus a spread, typically half a point to a full point. With prime at 4.45%, the best HELOC rates available today are around 4.95%, running up to 7.70% at some lenders. An unsecured personal line of credit sits higher still.

Three things follow from that.

First, your HELOC has not repriced yet, and it will. Fixed mortgage borrowers absorbed the bond selloff months ago. HELOC borrowers have felt nothing, because prime has not moved since October 2025. If the policy rate rises to 3.25%, prime goes to about 5.45% and your HELOC goes from roughly 4.95% to roughly 5.95%. On a $100,000 balance that is an extra $1,000 a year, and it arrives within days of each Bank of Canada announcement, not at some future renewal date.

Second, there is no renewal date to protect you. A mortgage locks your rate for a term. A HELOC does not. It reprices immediately and indefinitely. There is no rate hold, no 120 day window, no shopping around at maturity. You are exposed on every announcement date, and the Bank of Canada has eight of them a year.

Third, interest only payments hide the problem. Most HELOCs allow you to pay interest only, which is convenient and is also how balances sit unchanged for years. Rising rates on a balance that never amortizes is a slow leak that can run a long time before anyone notices.

If you are carrying a meaningful HELOC balance, the questions worth asking now are these. What does the payment look like at prime plus one, and at prime plus two? Is the balance funding something that earns a return, or is it funding consumption? And would converting some or all of it into a fixed rate term loan buy you certainty you actually want? Many lenders will let you carve a portion of a HELOC into a fixed rate segment. You give up flexibility and you get predictability, which in a rising rate environment is often the better trade.

Putting It Together

The bond market has already delivered its verdict. Long term yields are up sharply, the Government of Canada five year sits at 3.65%, and that has fed straight through to fixed mortgage rates of 4.24% and up.

What has not happened yet is the short end. Prime is frozen at 4.45%, and every variable rate mortgage and every line of credit in the country is priced off it. The market now thinks that freeze ends, possibly as soon as 28 October 2026.

So the households most exposed right now are not the ones renewing a fixed mortgage. Those people have largely already taken the hit and will renew into something close to what they pay today. The exposed households are the ones sitting on variable rate debt and line of credit balances that have been cheap for a year and are priced to stay cheap. That assumption is the one the bond market is telling you to check.

None of this is a forecast I would bet the house on, and the honest caveat is that all of it hinges on an oil shock that could resolve. If the Strait of Hormuz reopens, gasoline prices fall, headline inflation drops back toward the 2.2% core reading, and the case for rate increases largely evaporates. That is a real possibility and not a small one. But it is not the way to plan. Plan for the rate path the market is pricing, and treat a resolution as the pleasant surprise.

This article is for information only and is not financial advice. Your own circumstances, balances and lender terms will change the arithmetic, so speak to a mortgage professional before acting.

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