Your credit score isn't just a number—it's one of the most powerful factors that determines how much you'll pay for your mortgage. In Canada's current lending environment, the difference between a good credit score and an excellent one can translate to thousands of dollars in savings over the life of your loan.
Whether you're shopping for your first home or refinancing an existing mortgage, understanding how lenders evaluate your credit score can give you a significant advantage. Let's break down exactly how this three-digit number impacts your mortgage rate and what you can do to improve it.
The Credit Score Ranges That Matter
In Canada, credit scores range from 300 to 900, with most people falling somewhere between 600 and 750. But not all scores are created equal in the eyes of mortgage lenders. Here's how they typically view different ranges:
Excellent (760+)
This is the sweet spot. Lenders see you as a low-risk borrower and compete for your business. You'll qualify for the best rates available—often 0.5% to 1% lower than average rates. On a $500,000 mortgage, that could mean saving $150-$300 per month.
Good (700-759)
You're still in solid territory. Most lenders will offer you competitive rates, though you might not see the absolute rock-bottom numbers. The difference here is usually around 0.25% to 0.5% higher than excellent credit rates.
Fair (650-699)
Things get trickier here. Traditional lenders may still work with you, but expect higher rates—sometimes 0.5% to 1.5% above prime rates. You might also face more scrutiny during the approval process and need a larger down payment.
Poor (Below 650)
Major banks often decline applications in this range. You'll likely need to work with alternative lenders who specialize in higher-risk mortgages, with rates that can be 2% to 4% higher than prime. The good news? It's temporary if you take steps to rebuild.
Why Lenders Care So Much About Your Score
From a lender's perspective, your credit score is a statistical prediction of how likely you are to repay borrowed money. It's based on your financial behavior over time—payment history, credit utilization, length of credit history, and more.
When you apply for a mortgage, lenders are making a 25-year bet on you. A higher credit score tells them you've consistently managed debt responsibly, which reduces their risk. Lower risk means they can offer you better rates because they're more confident they'll get their money back.
In practical terms, someone with a 780 credit score applying for a $400,000 mortgage at 4.5% will pay about $2,030 per month. Someone with a 650 score getting a rate of 6.0% will pay $2,398—that's an extra $368 every month, or $132,480 over 30 years.
What Actually Impacts Your Credit Score?
Understanding the components can help you focus your improvement efforts where they'll have the most impact:
Payment History
35%This is the big one. Late payments, collections, and bankruptcies have major negative impacts. Even one 30-day late payment can drop your score by 50-100 points.
Credit Utilization
30%How much of your available credit you're using. Keeping balances below 30% of your limits is good; below 10% is excellent.
Length of Credit History
15%Longer credit history is better. That old credit card you barely use? Keep it open—closing it could hurt your score.
New Credit
10%Too many recent credit applications signal financial stress. Each hard inquiry can drop your score by 5-10 points temporarily.
Credit Mix
10%Having different types of credit (credit cards, car loans, lines of credit) shows you can manage various obligations.