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The Bank of Canada's First Hike in Three Years Shrinks Your Borrowing Room
By Dana Jerlo profile image Dana Jerlo
3 min read

The Bank of Canada's First Hike in Three Years Shrinks Your Borrowing Room

On March 2, 2022, a typical Edmonton household's paycheque didn't change and neither did its down payment, yet the amount of debt it could comfortably carry started to shrink. That morning the Bank of Canada raised its policy rate from 0.25% to 0.50%, its first increase since October 2018. Looking back from 2026, that quarter-point move is still the clearest lesson in how a rate turn reaches a family budget: when interest takes more of your income, there is less room for debt, even if your income hasn't changed.

If you've ever worked out a comfortable monthly payment for an Edmonton home, then wondered whether your pre-approval still holds when rates move, you know how fast a settled budget can feel uncertain. The useful question is which of your debts can get more expensive now, which at renewal, and which only when a lender looks at your file again. Knowing that tells you where to look first whenever the Bank changes direction.

Which borrowing costs rise first after a rate increase

The Bank raises its rate to cool inflation by making borrowing dearer, so people and businesses spend a little less. Lenders respond through their prime rate, the base rate behind most variable mortgages and lines of credit. In 2022 the big banks and credit unions such as Servus generally followed quickly, though each lender sets its own prime.

From there, timing depends on your contract. An adjustable-payment variable mortgage changes your payment soon after prime moves. A variable mortgage with fixed payments keeps the payment the same and sends more of it to interest, so the cost builds inside your balance where you can't see it on payday. Prime-linked personal and business lines of credit feel it on the next statement. A fixed-rate mortgage protects you for the rest of its term, and the higher rate waits for renewal. New fixed rates follow bond yields and other lender funding costs, so they don't automatically jump by the same quarter point, and sometimes they've already moved before the announcement.

The first check is simple. Write down every debt and mark it fixed, adjustable-payment variable or fixed-payment variable. That list shows when higher interest reaches your budget. Include the credit lines: an operating line for your business or a home equity line can absorb cash you'd set aside for housing.

Why the same income can support less borrowing

Lenders size a mortgage by asking what share of your income the payment and your other debts will take. Raise the rate and the same payment supports a smaller loan, so a household's purchase budget can drop with no change to their earnings. Spread across many buyers, that's how rate increases cool demand.

The stress test adds a wrinkle. Under OSFI's rules in 2026, you qualify at the higher of your contract rate plus two percentage points or 5.25%. That's a qualifying test, separate from the rate you actually pay. Take an illustrative buyer offered 2.79%: plus two is 4.79%, so they qualify at the 5.25% floor. If their offered rate rose to 3.04%, plus two is 5.04%, still under the floor, so their maximum might not change at all. A buyer with a higher contract rate could see their limit fall right away. Because a policy increase doesn't trim every borrower's limit by the same amount, an older pre-approval is worth refreshing before you write an offer.

Approval and affordability are separate questions. The lender's number says what you qualify for. It doesn't know about daycare, a truck payment, the furnace nearing its end, or the months when self-employed income runs thin. Build your purchase budget around the full housing payment, including property tax, heat and condo fees where they apply, plus your existing debts, and leave room for the unexpected.

The borrowing room that matters is the breathing room left in your month after the payment clears. Before your next commitment, whether an offer or a renewal, put the payment in your current budget beside an updated lender estimate and see which one you can actually live with.


Sources

  1. Global News - Bank of Canada raises key interest rate, but inflation could prove 'difficult to tame' - 2022-03-02. https://globalnews.ca/news/8654004/canada-interest-rate-hike-march-2022/
  2. Canadian Mortgage Trends - The Big 5 Banks Raise Prime Rate to 2.70% - 2022-03-03. https://www.canadianmortgagetrends.com/2022/03/big-5-banks-raise-prime-rate-to-2-70/
  3. Servus Credit Union - Servus Credit Union Prime Rate History. https://servus.ca/prime-rates
  4. OSFI - Minimum qualifying rate for uninsured mortgages - 2026-01-29. https://www.osfi-bsif.gc.ca/en/supervision/financial-institutions/banks/minimum-qualifying-rate-uninsured-mortgages