Your credit score is one of the most consequential numbers in your mortgage 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 profile can save you $10,000–$30,000 over your mortgage term. Here’s the complete picture.
Credit Score Tiers and Mortgage 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 Rate Cost of a Low Credit Score
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 score from 640 to 720 before applying is worth real money.
What Factors Make Up Your Credit Score 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.
Fast Credit Score Improvements 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.
Get mortgage options matched to your credit profile at mrates.ca.