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Trade tensions are reaching Ontario mortgages: CMHC sees arrears rising until mid-2027 in auto-heavy regions

For homeowners across Windsor, London, Hamilton and the Greater Toronto Area, the impacts of the trade war have expanded well beyond the manufacturing sector to affect residential property owners. It’s starting to show up in mortgage statements.

According to Canada’s national housing agency, mortgage delinquency rates in Ontario are projected to continue rising through the middle of next year. The timing is awkward. Days following that forecast, Canada’s major financial institutions increased their prime rates, driving up borrowing costs for variable-rate mortgages and home equity lines of credit (HELOCs).

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Not all Canadian homeowners are at risk but for households tied to manufacturing employment, variable-rate debt or escalating credit card balances, a passive stance is a significant risk. The next 12 months require a concrete financial plan rather than a wait-and-see strategy.

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Why is Ontario seeing more mortgage stress than the rest of Canada?

A mortgage is considered in arrears once payments are at least 90 days overdue. In Ontario, those arrears rate reached 0.32% in the second quarter of 2026 and is expected to climb through mid-2027. That’s up from 0.21% a year earlier, and the report projects about 0.44% by June 2027.

Over that same 12-month stretch, arrears crept up across the board: Windsor climbed from 0.17% to 0.26%, London rose from 0.18% to 0.27% and Toronto jumped from 0.24% to 0.33%.

What’s driving the increase is jobs more than interest rates. According to CMHC, mounting trade tensions are hitting major manufacturing hubs across Southwestern Ontario and the GTA — especially the auto sector. That’s injecting serious uncertainty into the job market right as the housing market continues to lose steam. CMHC warns that a weaker housing market will make it much tougher for struggling homeowners to sell their way out of trouble. The ‘I’ll just sell’ safety net is thinner than many owners assume.

There’s some context to keep in mind. Arrears are still below historical peaks, and they’ve fallen in Alberta and Saskatchewan.

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How does the 4.70% prime rate change the math for variable and HELOC borrowers?

At the Oct. 28 rate announcement, the Bank of Canada (BoC) raised its benchmark rate by 25 basis points to 2.50%, marking its first hike since 2023. The six largest banks then moved prime to 4.70%, up from 4.45%.

If your variable mortgage has adjustable payments, your monthly payments increase immediately. If it has fixed payments, more of each payment now goes to interest instead of principal. As an example, a quarter-point increase on a $500,000 balance adds roughly $1,250 a year in interest, or about $104 a month. Interest-only HELOC borrowers will see the increase on their next statement.

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More households are exposed to this change than a year ago. Variable mortgages made up 36% of new loans in June, up from 29% a year earlier. Many of those borrowers chose variable to lower their payments, and that advantage just narrowed.

What are the warning signs before a missed mortgage payment?

Homeowners rarely fall behind on the mortgage first. CMHC notes that rising delinquencies on auto loans, credit cards and lines of credit may signal household stress before it fully shows up in mortgage arrears. Over the past year, delinquencies rose across auto loans (2.28% to 2.51%), credit cards (1.78% to 1.91%) and credit lines (0.92% to 1.05%).

The sharpest strain is among private lenders. Arrears at alternative lenders jumped from 1.83% to 2.57% nationally, compared to just 0.28% at chartered banks.

If you’re putting groceries on a card or drawing on a HELOC to cover the mortgage, treat that as your own early warning.

What to do now

Check your new payment and your trigger rate

Ask your lender for your updated payment. If your variable mortgage has fixed payments, check how close you are to your trigger rate. Guidance from the Financial Consumer Agency of Canada (FCAC) notes that hitting your trigger rate can mean higher payments, lump-sum payments or a switch to a fixed rate.

Build a cash buffer if your job is trade-exposed

Clear high-interest card debt first, then build accessible savings. A tax-free savings account (TFSA) works well for this.

Call your lender before you miss a payment

The FCAC expects banks to offer tailored relief to borrowers at risk of default, including waiving prepayment penalties if you sell your home. Extending your amortization lowers monthly payments, but increases total lifetime interest.

Weigh a lock-in carefully

Locking into a fixed rate buys certainty. Before switching, check what penalties or fees apply.

If you’re with a private lender, plan your exit early

Talk to a licensed mortgage broker well before your renewal date about whether you could qualify with a mainstream lender.

CMHC’s deputy chief economist, Aled ab Iorwerth, described the picture as regional pressure rather than a national crisis. He said the “early warning signs, particularly in parts of Ontario, need to be monitored closely.” The same goes for your own budget.

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Amy Tokic Associate Editor

Amy Tokic is an SEO content editor for Money.ca. She holds a B.A. in Communications from the University of Windsor. Amy is an award-winning author and has been writing professionally for 15 years, publishing articles in the lifestyle and health sectors.

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