Your credit score for a mortgage is one of the most consequential numbers in your application — determining not just whether you’re approved, but at what rate, from which lenders, and under which terms. In 2026, with lenders applying tighter qualification criteria, arriving at your mortgage application with the best possible credit score can save you $10,000–$30,000 over your mortgage term. Here’s the complete picture.
Credit Score for a Mortgage: Tiers and Rate Impact
| Credit Score Range | Tier | Lender Access | Rate Impact |
|---|---|---|---|
| 760+ | Exceptional | All A-lenders, best rates | Best available rate, no premium |
| 720–759 | Very Good | All A-lenders | Best or near-best rate |
| 680–719 | Good | Most A-lenders; CMHC insured minimum | Minor rate premium possible (0.05%–0.15%) |
| 600–679 | Fair | Limited A-lenders; B-lenders primary option | Rate premium 0.25%–1.00%+ |
| Below 600 | Poor | Private lenders only; 20%+ down required | Rate premium 2.00%–4.00%+ |
The Real Rate Cost of a Low Credit Score for a Mortgage
On a $550,000 mortgage, the difference between a 760 score (4.09%) and a 640 score (4.59%) costs approximately $1,500/year in additional interest — or $7,500 over a 5-year term. Improving your credit score for a mortgage from 640 to 720 before applying is worth real money.
What Factors Make Up Your Credit Score for a Mortgage in Canada
- Payment history (35%): The single biggest factor. One missed payment can drop your score 50–100 points and stays on your report for 6 years.
- Credit utilization (30%): The percentage of available credit you’re using. Keep balances below 30% of limits — ideally below 10% before applying.
- Credit history length (15%): Older accounts help. Don’t close your oldest credit card even if you don’t use it.
- Credit mix (10%): Having different types of credit (credit cards, car loan, line of credit) helps.
- New credit inquiries (10%): Each hard inquiry (loan or credit application) can temporarily lower your score 5–10 points. Multiple mortgage applications from a broker count as one inquiry.
You can pull your own report to check where your credit score for a mortgage currently stands through the Financial Consumer Agency of Canada’s guide to ordering your credit report.
Fast Ways to Improve Your Credit Score for a Mortgage Before Applying
- Pay down credit card balances to below 30% of your limit — can add 20–50 points within 30–60 days.
- Request a credit limit increase (without spending more) — reduces your utilization ratio.
- Set up automatic minimum payments on all accounts to eliminate missed payment risk.
- Dispute any errors on your Equifax or TransUnion report — errors affect roughly 10–15% of Canadians.
- Avoid applying for any new credit (car loan, store credit card) for at least 6 months before your mortgage application.
Once you know where your credit score for a mortgage stands, see what rate tier it puts you in. Compare live lender offers on our best mortgage rates page, or run your numbers through our mortgage payment calculator.
Frequently Asked Questions
What credit score do I need to get a mortgage in Canada?
Most A-lenders want a credit score for a mortgage of at least 680, with 720+ needed to consistently access the best rates. Scores between 600–679 can still qualify but typically through B-lenders at a rate premium.
How much does a low credit score cost on a mortgage?
On a $550,000 mortgage, dropping from a 760 to a 640 credit score for a mortgage can cost approximately $7,500 in extra interest over a 5-year term, due to the higher rate lenders charge for lower-tier scores.
Get mortgage options matched to your credit score for a mortgage at mrates.ca.