Credit Score Impact on Mortgage
Explore how your credit score affects mortgage approval in Canada, and learn how to boost your score for better rates and loan options.

May 22, 2025
What is a Credit Score's Impact on Mortgage?
Credit score impact on mortgage refers to how a borrower’s credit score influences their mortgage eligibility, interest rate, and loan terms.
Why a Credit Score's Impact on Mortgage Matters in Real Estate
In Canadian real estate, your credit score is a major factor in determining whether you qualify for a mortgage and at what interest rate. Lenders use credit scores to assess the risk of lending money to a borrower.
Typical credit score thresholds:
- 680+: Excellent – Access to best rates and terms
- 600–679: Good – Qualifies for most mortgages
- 500–599: Fair – May need alternative lenders
- Below 500: Poor – Limited mortgage options
A higher credit score can secure better mortgage rates, which significantly reduces long-term interest costs. Conversely, a lower score may result in higher interest rates, larger down payments, or denial of mortgage approval.
Credit scores are influenced by factors such as payment history, debt levels, credit utilization, and length of credit history. Buyers can improve their score by paying bills on time, reducing debt, and avoiding unnecessary credit inquiries.
Understanding how credit score affects your mortgage options helps borrowers make strategic financial decisions and access better housing opportunities.
Example of a Credit Score's Impact on Mortgage
A borrower with a 750 credit score qualifies for a 4.4% mortgage rate, while another with a 620 score is offered 5.6% from a B-lender.
Key Takeaways
- Credit score determines mortgage eligibility and rates.
- Higher scores get better terms and lower interest.
- A low score may limit mortgage options.
- Improving credit health enhances homebuying power.
- Essential for mortgage planning and budgeting.
Related Terms
- Pre-Approval
- Debt Service Ratios
- Interest Rate
- Alternative Lenders
- Mortgage Qualification

A rendering of the first two buildings, 119 and 151 Bruce Street, which will total 500 homes. (Courtesy of Medallion Corporation)
A rendering of a proposed park that would add significant green space to downtown Oshawa. (Courtesy of Medallion Corporation)
A drawing of ReHousing Co-Founder Michael Piper's triplex in Toronto's east end/ReHousing
Some of the housing configurations available through the design catalogue/ReHousing 











Renderings of the tower proposed for 1394 Robson Street in Vancouver. (Arcadis, Asia Standard Americas)
Renderings of the tower proposed for 1394 Robson Street in Vancouver. (Arcadis, Asia Standard Americas)
Source: CREA Stats XML via HomiesAI.com AI Harness for Realtors
Source: CREA Stats XML via 

Annacis Island
The Vue at 2830 Peatt Road in Langford, British Columbia. (Boardwalk REIT)
The preliminary proposal for the Lynn Valley Safeway at 1170 E 27th Street in North Vancouver. (Crombie REIT)