Could your variable mortgage become more expensive next week? Canadian markets are pricing in a Bank of Canada interest-rate increase on October 28—but no decision has been made.
Reuters reported on October 21 that the Canadian dollar was near a four-week high as investors anticipated tighter monetary policy. Traders assigned roughly an 80% probability to a quarter-point increase in the Bank of Canada’s overnight rate, to 2.50%. That is a market estimate, not a promise of what the central bank will do.
In this article: What markets expect · Who pays more · Payment examples · What to do before renewal
Why Are Investors Expecting an Increase?
Bank of Canada Governor Tiff Macklem said on October 17 that persistently elevated oil and petroleum-product prices were likely to push the Bank’s inflation forecast significantly higher. The question for policymakers is whether that inflation pressure will fade by itself or require higher interest rates. At the same time, trade uncertainty and slower economic growth complicate the decision.
Reuters reported on October 21 that markets put the chance of a 0.25-percentage-point increase at about 80%. Expectations can change quickly as economic data arrive. Read the October 21 Reuters report.
Who Would Feel a Rate Hike First?
Variable-rate mortgages and home equity lines of credit are most directly exposed because lenders’ prime rates generally respond to Bank of Canada policy. With an adjustable-payment variable mortgage, the required payment may rise. With a fixed-payment variable mortgage, more of the same payment may go toward interest, slowing principal repayment and potentially triggering payment adjustments under the contract.
Existing fixed-rate mortgages usually keep their contractual interest rate until renewal. New fixed-rate offers can move before or after a Bank of Canada announcement because they are influenced by bond yields and lender funding costs—not simply the overnight rate.
What Would a Quarter-Point Increase Cost?
For a hypothetical $500,000 mortgage balance with 25 years remaining, a variable rate rising from 4.50% to 4.75% would increase an otherwise recalculated monthly payment from about $2,779 to $2,851: approximately $72 more per month, or $864 annually. The calculation uses Canadian mortgage convention (nominal annual interest compounded semi-annually) and is an illustration, not a rate quote. Your actual payment response depends on your lender and contract.
Does a Stronger Canadian Dollar Mean Higher Mortgage Rates?
No. A stronger loonie can reflect market expectations of Canadian rate increases, but currency movements are influenced by many factors, including U.S. dollar weakness and commodity prices. It would be misleading to treat the exchange rate as a mortgage-rate forecast.
What Should Ontario Homeowners Do Now?
If you have a variable-rate mortgage, check whether your payment adjusts with prime, how much interest you currently pay and whether your lender has a trigger-rate or trigger-point provision. If renewal is approaching, compare available fixed and variable offers and consider how your budget would handle several different rate scenarios—not just one anticipated decision.
Bottom line: An October 28 increase is plausible, but not guaranteed. The Bank of Canada’s actual announcement—not the market’s 80% probability—will determine whether its policy rate changes.
Reporting: Reuters, October 21, 2026; Reuters, October 17, 2026.
