Your Credit Card Slips Two Years Before Your Mortgage Does
Nobody wakes up one morning and misses a mortgage payment out of nowhere.
That sounds obvious. What is not obvious is how long the run up actually is, and how clearly it
shows up in the data. Three researchers at the Bank of Canada went and measured it, and the answer
is about two years.
This is the first in a series where I take a Bank of Canada publication and translate it into
something a homeowner can actually use. They are written for economists, they are free, and almost
nobody outside the industry reads them. That seems like a waste.
What they actually did
The researchers took the full TransUnion Canada credit file from 2015 to 2024. That is more than
9 million mortgage holders across over 100 lenders, roughly 80 percent of
every mortgage in the country. It is not a survey and it is not a sample of volunteers. It
is close to everybody.
Then they did something clever. They found every borrower whose mortgage went 30 days past due
after at least two clean years, and they rewound the tape. What was happening in that person’s
credit file six months earlier? A year? Two years?
The paper states that TransUnion provided the Bank with anonymized data containing no names,
social insurance numbers or addresses. The researchers were looking at patterns across millions of
files, not at individuals.
What they found
A sequence, and it is remarkably consistent. In their own words:
Mortgage holders begin increasing their credit utilization roughly two years before
their first mortgage delinquency. One to two years prior to becoming late on their mortgage,
households frequently begin missing payments on various consumer credit products, particularly
credit cards. These patterns accelerate sharply in the final six months leading up to mortgage
delinquency.Zhao, Xiao and Witts,
Bank of Canada Staff Analytical Paper 2026-3
Why the credit card goes first
This is the part that makes the whole thing make sense.
When money gets tight, people do not stop paying the mortgage. They protect the mortgage, because
the house is attached to it. So the pressure has to come out somewhere else first, and it comes out
on the unsecured stuff: the card, then the line of credit, then the car.
The mortgage is the last domino, not the first. Which is exactly why watching only the mortgage
tells you nothing until it is too late to do much about it.
In the researchers’ own model, a borrower’s credit score explained about 29 percent of the
variation in delinquency risk, while the behavioural signals together, the utilization patterns and
the arrears, accounted for over 70 percent. The score is the lagging indicator. The behaviour is
the leading one.
Why any of this matters in the GTA
Canadians owe about $2.4 trillion in residential mortgage debt, which the paper
notes is close to 73 percent of national GDP and about 74 percent of all household debt. This is the
biggest liability most families will ever carry.
And in this market specifically, there is a group of people carrying a payment set under very
different conditions from today’s, who have been quietly absorbing the difference. Some of them are
absorbing it on a credit card.
I want to be careful here, because this is where an article like this usually turns into a
prediction about a wave of forced sales. I am not making that argument and the paper does not make it
either. It measures a sequence in individual credit files. It does not forecast how many people will
travel that path.
What to do if you recognise yourself
The genuinely useful thing about this research is that it is early. Two years is a long runway. It
is enough time to do almost anything: refinance, restructure, rent a room, change the amortization,
or sell properly rather than urgently.
This is a summary of published research, not financial advice, and I am a real estate agent
rather than a mortgage broker or a credit counsellor. If your situation is genuinely tight, a
licensed mortgage broker and a non profit credit counselling service are both free to talk to and
both better first calls than me.
The honest reason I found this worth writing up
Most of what gets written about mortgage stress is either a scare story or a sales pitch. This is
neither. It is a group of researchers documenting, across nine million files, that the trouble
announces itself about two years in advance.
A smoke detector going off is not the same thing as a fire. It is the thing that gives you time.
Where This Comes From
This post summarises Laura Zhao, Jia Qi Xiao and Aidan Witts, “Consumers’ Path to Mortgage Delinquency,” Bank of Canada Staff Analytical Paper 2026-3, February 2026. The paper is free to read on the Bank of Canada website. The mortgage debt figure the paper cites comes from Statistics Canada table 36-10-0639-01. The timeline graphic above is my own, drawn from the sequence the authors describe rather than reproduced from their charts.
Frequently Asked Questions
What are the early warning signs of mortgage trouble?
Why do people miss credit card payments before mortgage payments?
How many months behind before a lender can take action in Ontario?
Does a high credit score mean I am not at risk?
Where can I read the original Bank of Canada paper?
Related Reading
- Mortgage Renewals in Canada
- Why 35 Year Mortgages Are Creating Forever Loans
- Your Home Is Not Selling. Now What?
- Closing Costs in Ontario
If you are looking at a renewal you are not sure you can carry, the worst version of this is finding out your options in month twenty three. I am happy to walk through what your place would realistically sell for and what the alternatives look like, with no obligation and nothing to sign. Sometimes the answer is that you are fine and you needed someone to confirm it.