Why Fixed Mortgage Costs Still Aren't Coming Down

What's actually happening in the bond market

"Bad economic news is usually good news for mortgage interest costs," Bruno Valko, RMG Mortgages' vice-president of national sales, said during a recent webinar covered by Canadian Mortgage Trends. Slower growth usually increases demand for government bonds and makes central bank cuts more likely, which normally pulls yields down. Through the summer of 2026, that link broke.

Between February 26 and August 24, 2026, the 5-year Government of Canada bond yield rose from 2.72% to 3.28%, Valko told the webinar. Fixed mortgage pricing in Canada tracks that yield closely, because lenders fund fixed terms by borrowing at roughly the same maturity. The move wasn't isolated to Canada, either — the U.S. 10-year Treasury yield climbed from 4% to 4.71% over the same window, and Japan's 30-year yield rose from 3.37% to 4.06%.

"The bond market is global," Valko said. "The United States usually sets the pace." That matters for anyone shopping a mortgage in Ontario: the number that decides what a fixed term costs is set well outside the Bank of Canada's boardroom.

It also explains why the Bank of Canada holding, or even cutting, its own key benchmark hasn't necessarily translated into cheaper fixed pricing this year. That benchmark governs short-term borrowing and variable mortgages directly; a fixed term is priced off the bond market's own read on where inflation and government borrowing are headed years out, which is a separate question with its own answer.

Inflation is doing most of the work

According to Statistics Canada's July release, the Consumer Price Index rose 3.0% year over year, up from a 2.8% gain in June — driven in part by gasoline and travel prices. The Bank of Canada's own preferred core measures, CPI-median and CPI-trim, came in lower at 2.0% and 1.9%, but the headline number is the one that unsettles bond investors.

Higher inflation erodes the real return on a bond's fixed payments, so investors demand a higher yield to compensate. "Until we see these numbers come in and around that 2% mark, and we see some cooling of inflationary pressures, we can't expect bond yields to come down if inflation remains elevated," Valko said.

Ottawa's own borrowing is part of the story

Valko pointed to government deficit spending as a second, separate pressure. Bigger deficits mean more bonds issued, and issuing more of anything usually means offering a better return to find buyers for it. "If we want lower [borrowing costs], we need to accept that government spending and deficits are a significant factor in increased bond yields," he said. "Not only do they increase the supply of bonds, they also fuel inflation. That's a double whammy."

There's a second wrinkle underneath that: the gap between short- and long-term Canadian yields has widened unusually far. The one-year Government of Canada yield sat around 2.67% in August, barely different from February 2025, while the 5-year yield had risen about 66 basis points over the same stretch — putting the 5-year more than 60 basis points above the one-year, after several years in which shorter terms typically yielded more. Valko reads that as investors demanding extra compensation for holding longer-term risk in an uncertain fiscal and inflation environment.

Corporations are borrowing too, not just governments

Governments aren't the only large borrowers competing for investor money right now. Valko pointed to technology companies borrowing heavily to fund AI infrastructure and data centres as a further source of demand for the same pool of capital. He also flagged a shift in who actually holds U.S. Treasury debt: private, profit-driven investors have taken on a larger share as central banks and foreign institutions account for less of it. "They're profit-oriented, so they also have options with corporate bonds and mortgage debt," he said. "They can buy private credit. They can buy all these different types of assets." That gives government bonds more competition for the same money than they had a few years ago.

What would actually bring borrowing costs down

Valko named the conditions that would reverse this, and none of them are guaranteed on any particular timeline:

• Inflation readings cooling back toward the Bank of Canada's 2% target
• Reduced market expectations of further central bank moves
• An easing of geopolitical and trade uncertainty

"It seems like the entire world is running these massive deficits," he said. "Because the bond market is global, I'm not so sure that even if Canada took care of [its] deficit spending that our bond yields would come down." That's a blunt way of saying this isn't primarily a made-in-Canada problem, and it isn't one the Bank of Canada can fix on its own by adjusting its benchmark.

What this means if you're renewing or shopping now

None of this is a forecast, and nobody can tell you with certainty where bond yields sit on your specific renewal date. What it does explain is why fixed borrowing costs haven't followed a softening jobs picture down the way people sometimes expect them to — see our mortgage renewal guide for the full mechanics of what actually resets at renewal, and why waiting on a specific number is usually the wrong strategy.

If a fixed term's current pricing gives you pause, the useful comparison is against a variable option on the same file, run side by side rather than in the abstract — our mortgage calculators can model both on your actual numbers. Whichever way you lean, the decision is worth making with your current offer in hand, not a hoped-for one.