What Actually Causes Mortgage Arrears in Canada. It Is Not Rates.
Ask people what makes Canadians fall behind on their mortgages and almost everybody says the same
thing: interest rates.
Bank of Canada researchers went and measured it. Rates matter. They are not the main driver.
What they were actually trying to solve
Mortgage debt is over 70 percent of all Canadian household financial liabilities.
If you want to know whether the financial system is about to have a problem, this is the number you
watch. So the Bank needs to know what makes it move, and ideally to know before it moves.
The paper tests mortgage arrears against the obvious suspects: labour market conditions, interest
rates, house prices and inflation. Then it builds a framework for projecting stress forward.
The answer is the job market
A one percentage point rise in unemployment produces roughly a 0.1 percentage point
rise in mortgage arrears, arriving about a year later.
That sounds small. It is not, for two reasons. Arrears rates in Canada are low to begin with, so a
tenth of a point is a meaningful proportional move. And unemployment rarely rises by only one point
when it rises at all.
A rate increase makes your payment bigger. Losing your job removes the income the payment comes
out of. People find remarkable ways to absorb a larger payment. Almost nobody can absorb the
disappearance of the paycheque it comes from.
The lag is the useful part
The year long delay between the labour market moving and arrears moving is not a footnote. It is
the whole practical value of the research.
It means the employment numbers you read this month are telling you something about mortgage
stress roughly a year from now. Not with precision, and not for any individual household, but as a
direction of travel. For anyone deciding whether to stretch on a purchase, that is a more useful
input than a rate forecast.
It also lines up neatly with other Bank research showing that individual borrowers give off
warning signals in their credit files around two years before a first missed mortgage payment. The
macro signal and the household signal run on similar clocks.
A summary of published research, not a forecast and not financial advice. The paper models
relationships in historical data and builds a framework for scenarios. It does not predict what
unemployment or arrears will do next.
What I take from it as an agent
When people ask me whether they can afford a place, the conversation is almost always about the
rate. The research says the question underneath it should be about the income: how stable is it, how
replaceable is it, and how long could you carry this payment without it.
A buyer with a slightly worse rate and a secure job is in a better position than a buyer with a
great rate in a shaky industry. The data has been saying that for years. It is just not the part
anyone finds interesting at the offer stage.
Where This Comes From
This post summarises Bank of Canada Staff Analytical Paper 2026-12, “Examining the macro drivers of mortgage arrears in Canada,” March 2026. Arrears there means accounts 90 or more days overdue as a share of all Canadian residential mortgages, sourced from the Canadian Bankers Association. It is free on the Bank of Canada website.
Frequently Asked Questions
What causes people to fall behind on their mortgage?
Do interest rate increases cause mortgage defaults?
How much do mortgage arrears rise in a recession?
What is the mortgage arrears rate in Canada?
Can I predict my own risk from this research?
Related Reading
- Your Credit Card Slips Two Years Before Your Mortgage Does
- About 9% of Toronto Borrowers May Not Be Able to Refinance in 2027
- Mortgage Renewals in Canada
- Why 35 Year Mortgages Are Creating Forever Loans
If you are trying to work out how much house you can carry rather than how much you can qualify for, that is a conversation I am happy to have with no obligation attached.