When you apply for a mortgage in Canada, the bank does not just check if you can afford the payment today. They check if you could still afford it if rates went up. This is called the stress test. It is a rule from the federal government, and every lender must follow it.
This is why so many first-time buyers get a shock. They see a house they love. They run the numbers with today's mortgage rate. It fits. Then the bank comes back with a smaller approval, and the house is gone.
How the stress test works
The rule is simple. You must qualify at the higher of:
- Your actual contract rate + 2%, or
- 5.25% — the government's floor.
So if a lender offers you 4.5%, they test you at 6.5%. If they offer you 5.75%, they test you at 7.75%. The higher the rate, the harder the test.
What this looks like in real dollars
Say you are looking at a $400,000 mortgage on a 25-year amortization. At 4.5%, the real monthly payment is around $2,215. That might fit your budget. But the bank does not use that number to decide how much to lend you. They use the payment at 6.5% — around $2,680.
Illustrative only. Your rate and payment depend on your file. The point: the bank's number is higher than yours.
That $465 difference is why the bank might approve you for $340,000 when your gut said $400,000. Nothing is wrong with your budget. The bank is just checking a bigger one.
The myth
The bank approves what I can afford today.
The truth
The bank approves what I could still afford if rates rose 2%. That number is smaller.
Why this rule exists
It sounds annoying. It is actually protecting you. In the early 1980s, mortgage rates in Canada went above 18%. Families who bought at 10% could not afford their payments two years later. Many lost their homes.
The stress test is the government saying: we do not want that to happen again. Make sure the buyer can survive a bump. It is a seatbelt. You may never need it. You are glad it is there.
What to do with this
Know your stress-tested number before you fall in love with a house. Not after. This one habit saves the most heartbreak in the whole home-buying process.
A good mortgage broker will tell you two numbers: the payment on your actual rate, and the maximum home price the stress test allows. Ask for both. Shop with the smaller number.
This is general education, not personalized financial advice. Rates and rules change. Talk to a licensed mortgage professional about your own situation.
This is general education, not personalized financial or investment advice. Talk to a licensed advisor about your own situation.