The 2021 mortgage cohort is coming due, and many borrowers locked in at 1.8% now face renewal rates above 5%

A Mississauga couple who bought in May 2021 with a $680,000 mortgage at 1.79% are about to see their monthly payment jump $1,430. They have equity, but not much. Selling into today's market would net them roughly what they paid, minus the friction costs. So they will renew, pay more, and hope the next five years treat them better than the last five. They are not alone.

The pandemic mortgage boom locked hundreds of thousands of Canadian households into five-year fixed terms at rates that will never be seen again. Those terms are now expiring. The typical renewal spread between 2021 and 2024 is around 350 basis points, which on a $500,000 balance translates to an extra $1,000 to $1,200 per month. For borrowers who stretched to qualify at 1.8%, that gap is not something you fix by skipping lattes.

The payment shock has few outlets

Refinancing doesn't help. You renew at the current rate, not the old one. Porting requires buying another property, which means qualifying all over again under higher rates and tighter stress tests. Selling is the obvious escape hatch, but it only works if your equity covers the transaction costs and gives you somewhere to go. In markets where prices have stalled or declined since 2021, many borrowers are sitting on paper gains that evaporate the moment they list. The math of getting out is worse than the math of staying in.

This is creating a locked-in cohort. Not locked into low rates, locked into high ones. Borrowers who might have moved, downsized, or relocated for work are now tethered to mortgages they cannot afford to exit and cannot afford to keep. The financial press calls this a "renewal shock." A better term would be a payment trap with a five-year fuse.

The system assumed rates would stay range-bound

The stress test was designed to ensure borrowers could handle a 200-basis-point rate increase. That cushion held through every tightening cycle from 2008 through 2018. It did not hold through 2022 to 2024, when the Bank of Canada raised its policy rate 475 basis points in eighteen months. The shock absorber was sized for normal volatility. What happened was not normal.

Lenders and regulators both treated sub-2% five-year fixed rates as temporarily low, not structurally unsustainable. The assumption was that a borrower qualifying at 5.25% in 2021 under the stress test could handle renewal at 4.5% or so by 2026. Instead, renewal rates are landing above 5%, and in some cases above 6%, depending on the lender and the borrower's loan-to-value ratio at renewal.

The cohort coming due in 2025 and 2026 will be the largest. Roughly 45% of outstanding mortgages were originated or renewed between 2020 and 2022, according to data from the Bank of Canada. Most of those took five-year terms. The wave is not speculative. It is mechanical.

Policy has no good fix for this

Extending amortizations helps some borrowers reduce the monthly hit, but it also locks them into paying interest on the same balance for longer. Allowing longer terms at renewal just delays the problem. Cutting rates now would help future cohorts but does nothing for households renewing this quarter at today's posted rates.

The real policy failure was treating emergency-level rates as something households could plan around for five years. They couldn't. The 2021 mortgage cohort is stuck, and the tools meant to prevent this kind of outcome were calibrated for a different kind of cycle.