How Your Credit Affects Mortgage Approval

When a lender decides whether to approve your mortgage, your credit is one of the first things they check. A strong score can unlock better rates and a larger loan; a weak one can mean higher costs or a flat decline. The good news: credit is one of the few approval factors you can actively improve before you apply. Here's how it works in Canada and what to do about it.

Key takeaways

• Credit shows lenders how reliably you repay debt — it directly affects approval and your rate.
• A higher score generally means access to better rates and more lenders.
• Even with strong credit, you must pass the stress test at the greater of your rate + 2% or 5.25%.
• Lowering your credit balances improves both your score and your debt-service ratios.
• HOMEH gives eligible buyers the industry's highest Cashback Rebate, whatever rate you secure.

Why lenders care about credit

Your credit report is a track record of how you handle borrowed money — whether you pay on time, how much you owe, and how long you've managed credit. Lenders use it to estimate the risk of lending to you. Lower risk means easier approval and, often, a better interest rate. It's a core part of getting your loan, alongside income, debts and down payment, as covered in how to get pre-approved as a first-time buyer.

What goes into your credit profile

Several behaviours shape your credit standing. Focus on the ones with the biggest impact.

• Payment history — paying every bill on time is the single most important factor.
• Credit utilization — keeping balances well below your limits helps your score.
• Credit history length — older, well-managed accounts work in your favour.
• New credit and inquiries — opening several accounts at once can lower your score.
• Credit mix — a healthy blend of credit types can help modestly.

How credit changes your approval

Credit doesn't work in isolation — it interacts with your debt-service ratios. Lenders want your Gross Debt Service ratio at or below 39% and your Total Debt Service ratio at or below 44%. Carrying high balances hurts twice: it can lower your score and raise the debt payments counted against you.

Credit alone isn't enough

Even with excellent credit, federally regulated lenders must qualify you at the greater of your contract rate + 2% or 5.25%. See how it works in our mortgage stress test guide.

How to strengthen your credit before applying

A few months of focused effort can meaningfully improve your standing.

• Pay every bill on time — set up automatic payments so nothing slips.
• Lower your balances — aim to use a small fraction of your available credit.
• Check your report for errors — dispute anything inaccurate.
• Avoid new credit before applying — don't finance a car right before your mortgage.
• Keep old accounts open — length of history helps.

What if your credit isn't perfect?

A lower score doesn't always mean no mortgage — it may mean a higher rate or a different lender. A broker can match you with options. For the full picture, read what credit score you need to buy a house in Canada.

Good credit, plus cashback

Improving your credit helps you secure a better rate; HOMEH helps you keep more on top of it. Eligible buyers receive the industry's highest Cashback Rebate regardless of the rate they lock. Start by getting pre-approved with HOMEH, then estimate your savings with the cashback calculator.