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How your credit score affects your mortgage rate

Mortgages · September 3, 2026 · 5 min read

When you apply for a mortgage, lenders look at your income, your debts, and — critically — your credit score. That three-digit number can change the rate you are offered, the size of mortgage you qualify for, and even whether you qualify at all.

What is a good credit score in Canada?

Credit scores in Canada range from 300 to 900. Most banks and monoline lenders want to see at least 680 for their best insured rates.

How much can the rate difference cost you?

The gap between a strong score and a weak one can be one to two percentage points. On a $500,000 mortgage over 25 years, that difference can add up to tens of thousands of dollars in extra interest.

Five ways to raise your score before you apply

  1. Pay every bill on time. Payment history is the single biggest factor.
  2. Keep credit card balances under 30% of their limits. Under 10% is even better.
  3. Do not close old accounts. Length of credit history helps you.
  4. Limit new credit applications. Each hard pull can shave points off.
  5. Check your report for errors at both Equifax and TransUnion, and dispute anything wrong.
Tip: Start improving your score at least six months before you plan to apply for a mortgage. Credit improvements take time to show up in your file.

The bottom line

A stronger credit score is money in your pocket when mortgage shopping. Pull your free report, clean up any issues early, and you will walk into rate negotiations from a position of strength.

This article is for informational purposes only and does not constitute financial advice. Rates and product details change frequently — always compare current offers before making a decision.

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