Hiding in Plain Sight

by George Campbell mtwx.ca

Sarah sat across from her mortgage broker last Tuesday, staring at renewal papers that made no sense. Her monthly payment was jumping from $2,400 to $3,200. Same house. Same remaining balance of $380,000. Same 22 years left on her amortization. The only thing that changed was the calendar.

“How is this legal?” she asked.

Her broker shrugged. “Your five-year term ended. Rates were 2.8% when you locked in back in 2020. Current 5-year fixed rates are around 4.7% now. The math is the math.”

Sarah isn’t alone. An estimated 60% of all Canadian mortgages renew in 2025 and 2026—well over a million mortgages from the major banks alone. Most were originated between 2020-2021 when rates sat near historic lows. The people holding these mortgages are about to discover what happens when the calendar, the rate environment, and their household budget all collide simultaneously.

When Sarah locked in at 2.8% in 2020, the Bank of Canada’s policy rate was 0.25%. As of September 2025, it sits at 2.50%—ten times higher. Her mortgage rate jumped by nearly 2 percentage points not because anything changed about her house or her creditworthiness, but because the price of money changed. Mortgage rates reflect Government of Canada bond yields plus lender spreads, not just the policy rate—and those yields moved dramatically. Every mortgage renewing over the next year faces similar arithmetic.

Canada’s major banks have reported substantial increases in net interest income since 2022, with significant revenue flowing from mortgage books as customers renew at higher rates. This isn’t a bug in the system—it’s how the system was designed to work. Banks generate billions in additional interest revenue from existing customers, with no new lending required.

For households already stretched by inflation in food, energy, and everything else, an extra $800 monthly mortgage payment isn’t an adjustment. It’s a crisis. According to bank disclosures and regulatory reports, over 30% of recent mortgage renewals have resulted in extended amortizations—borrowers paying more interest over a longer timeline to avoid immediate payment shock. Some lenders offered temporary extensions beyond 30 years for variable-rate mortgages that hit trigger rates. The bank wins twice: higher rate and extended term.

Variable and adjustable-rate mortgages add another layer. In Canada, lenders offer both variable-rate mortgages (VRMs) with fixed payments that can hit a “trigger rate” creating negative amortization risk, and adjustable-rate mortgages where payments float with prime. Variable/adjustable products made up roughly 12% of new mortgage originations in 2019, but surged to approximately 50% by mid-2021 as borrowers chased lower initial payments. Those borrowers have been absorbing rate increases continuously since early 2022, and they still face renewal shock when their terms end.

When over a million mortgages renew at dramatically higher rates within an 18-month window, three things happen:

Borrowers absorb the increase. Less spending on everything else—restaurants, retail, home improvements, discretionary purchases. Multiply Sarah’s $800 monthly increase across hundreds of thousands of households, and billions in consumer spending vanishes from the economy.

Borrowers extend amortization. This keeps monthly payments manageable but locks in higher interest costs for decades. It also means these same mortgages will still be outstanding during the next rate cycle, creating another renewal wave 5-7 years from now. The problem doesn’t get solved; it gets postponed and amplified.

Borrowers default or sell. When payment shock exceeds household capacity to adjust, distressed sales increase. Those sales hit a market where buyers face the same high rates, creating downward pressure on prices just as stretched sellers need to exit.

The policy response reveals priorities. The 2024 federal budget allowed 30-year amortizations (up from 25 years) for insured mortgages—but only for first-time buyers purchasing newly built homes. This policy doesn’t directly address renewals on existing loans; it mainly supports new-build demand and affordability optics for new buyers.

The stated goal: housing affordability. The actual effect: keeping monthly payments low enough that the new-construction market doesn’t collapse, while ensuring banks collect interest for three decades instead of two and a half. Extending amortizations protects bank revenue and market liquidity. It does almost nothing for borrowers except trade higher lifetime costs for lower monthly pain.

The synchronized wave was visible years ago. Five-year fixed mortgages—the Canadian standard—guarantee that when rates move sharply in either direction, millions of mortgages all reprice together. The 2020-2021 borrowing surge at rock-bottom rates created a synchronized renewal wave that policymakers and banks saw coming. They didn’t warn borrowers. They didn’t restrict lending. They let people borrow at 2.8% while knowing those mortgages would renew into a fundamentally different rate environment.

Sarah signed her renewal papers. She couldn’t afford $3,200 monthly, so she extended her amortization to 30 years, dropping her payment to $2,650. With her original $380,000 balance at 2.8% over 22 remaining years, she would have paid roughly $212,000 in total interest. Now, at 4.7% over 30 years, she’ll pay approximately $468,000 in interest—an additional $256,000 over the life of the mortgage. She made this choice because the alternative was immediate financial crisis.

The time bomb isn’t hiding. It’s a predictable mathematical outcome of how Canadian mortgages work. Banks collect the premium while borrowers absorb the blast.

So it goes.