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For informational purposes only. Not financial, legal, or professional advice. Consult a licensed mortgage professional before making decisions. See full disclaimer

FAQ Library
Purchasing•Verified 2026-02-18

What creditworthiness and debt service requirements are required for CMHC-insured mortgages?

At least one borrower (or guarantor) must have a minimum credit score of 600 to qualify.

Also, the Gross Debt Service (GDS) ratio must not exceed 39%, and the Total Debt Service (TDS) ratio must not exceed 44%. These requirements assess the borrower's ability to manage debt.

Key Points

  • If you don't have a long credit history, there may still be ways to prove you're able to handle a mortgage.

  • Your mortgage affordability will be calculated using the higher of your actual interest rate plus 2%, or 5.25% - this is to make sure you can still afford your payments if interest rates go up.

  • Lenders will carefully check your ability to repay your mortgage and verify your information.

  • Lenders need to have clear processes for determining the value of the property you want to buy.

  • Lenders are expected to follow careful lending practices to ensure the mortgage market remains stable.

Need a Deeper Breakdown?

Read the full research guide this FAQ was derived from for more context and strategy.

Technical Research Verification

Our systems synchronized 4 data points and regulatory frameworks to verify this technical brief.

Read the deeper guide · Purchasing

CMHC-Insured Mortgage Rate Advantages in Canada (2026): Lower Rates, Smaller Down Payments

Related Questions

How does mortgage insurance enable lower down payments?

Mortgage insurance lowers the risk for lenders, allowing them to offer mortgages to borrowers with down payments between 5% and 20%.

How will lenders evaluate my debt service ratios, and what key factors are considered?

Lenders assess your ability to repay the mortgage by calculating your Gross Debt Service (GDS) and Total Debt Service (TDS) ratios.

What property considerations impact my mortgage application?

Lenders carefully assess the property's value and characteristics, directly influencing the loan amount you can secure.

How does the 'straight switch' exemption benefit you at renewal?

The 'straight switch' exemption lets uninsured mortgage borrowers move their mortgage to a new federally regulated lender (FRFI) at renewal without needing to pass the Minimum Qualifying Rate (MQR) .

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