Oct 21, 2026
If your mortgage renews in the next 12 months — and almost 1 million mortgageholders face this renewal task — then the rate to watch isn’t the Bank of Canada overnight rate; it’s the yield on a 5-year government bond. And that yield is rising.
This month, the International Monetary Fund (IMF) called a sharp jump in government bond yields one of the most plausible near-term threats to financial stability — globally.
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But a week before the IMF raised their concerns, one of Canada’s largest banks, Bank of Montreal (BMO), raised its standard 5-year fixed rate to 5.14% — up 20 basis points from September’s fixed rate.
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For Canadians who locked in at rock-bottom rates in 2020 and 2021, this all means you can expect a bigger payment at renewal.
Why is the IMF worried about bond yields?
The IMF is a global organization that monitors economic and financial stability. In its October 2026 Global Financial Stability Report, the IMF says yields have climbed on higher energy prices and rising term premiums. A term premium is the extra return investors demand in order to hold longer-term debt — those premiums now sit near historic highs.
This IMF report also singled out households and urged authorities to watch debt-servicing burdens in countries where mortgage payments are sensitive to rate swings. Canada — where most mortgages renew every few years — fits that description.
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How does a bond selloff reach your mortgage?
Lenders price 5-year fixed mortgages off the 5-year Government of Canada bond yield. That yield closed at 3.60% on Oct. 2, up from 3.35% on Sept. 1, according to Bank of Canada data.
Since early September, every Big Six bank has raised at least some fixed rates, including BMO’s Oct. 7 hike. Meanwhile, the Bank of Canada’s overnight rate hasn’t budged from 2.25% for more than half a dozen rate announcements.
But despite all the focus on why rates are rising, the real issue is the impact it has on household costs. As RBC Economist, Claire Fan, explained in an interview with MPA Magazine: “For most households out there, it simply doesn’t matter why bond yields are rising. It matters that they are.”
Who will feel higher bond yields first?
Canadians who took out mortgages during the pandemic could be among the hardest hit when it comes time to renew. At the time, five-year Government of Canada bond yields were below 1%, helping lenders offer historically low fixed mortgage rates. Today, higher bond yields mean many homeowners face significantly larger payments when they renew.
The C.D. Howe Institute, an independent Canadian public policy think tank, warns that higher borrowing costs will put pressure on household budgets. Meanwhile, Bank of Canada analysis projects that roughly one in three mortgage holders will see their payments increase by the end of 2026.
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Consider a homeowner renewing a $400,000 mortgage with 20 years remaining. At an interest rate of 1.99%, their monthly payment would be approximately $2,020. At a renewal rate of 5.14%, that payment jumps to roughly $2,660 — an increase of $640 a month, or $7,680 a year.
Still, some industry experts argue that today’s mortgage rates aren’t unusually high by historical standards.
“We’re in normal rates today. We’re not in obscenely high rates,” said Grant Armstrong, chief growth officer at WealthOne Bank of Canada.
What to do now
- Lock in early: Many lenders let you hold a rate months before your renewal date
- Shop beyond your bank: Posted rates are rarely the best, so compare other lenders and talk to a mortgage broker
- Stress-test your budget: Run the numbers at today’s rates and trim spending before the new payment hits
- Watch Oct. 28 BoC rate announcement: The Bank of Canada’s next rate decision could change the math on variable rates
Choosing fixed or variable is still a personal call. But as Sherry Cooper, chief economist at Dominion Lending Centres, considers the near-term and into the first quarter of 2027: “We have to expect higher interest rates, which also means that fixed-rate mortgages are very attractive now.”
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Romana King, Senior Editor at Money.ca, also writes for various North American publications and the RKHomeowner blog. Her book, House Poor No More, is an Amazon bestseller and five-time award winner, including the 2022 New York CPA Society's Excellence in Financial Journalism (EFJ) Book Award.
