Responsible Credit Use

Responsible Credit Use

Credit3 min readFebruary 11, 2026
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Responsible credit use is a fundamental pillar of financial health and a determining factor for obtaining mortgage financing in Canada. The credit utilization rate, the ratio between the balance used and the available limit, is one of the main factors influencing credit scores calculated by Equifax and TransUnion. Credit experts and mortgage brokers recommend maintaining a utilization rate below 30% on each revolving account and overall. A rate above 75% signals increased risk to lenders and can significantly lower the credit score. Credit rotation, meaning the active and regular use of different credit products followed by full repayment, demonstrates sound management to lenders. In Quebec, AMF-certified mortgage brokers must evaluate the client's credit management as part of the mortgage qualification analysis. OSFI guidelines (B-20) require precise debt service ratios (GDS maximum of 39% and TDS maximum of 44%) that account for all of the client's credit obligations. Responsible credit use not only facilitates initial mortgage approval but also future renewals and refinancings. The LDPSF requires the broker to ensure the recommended product is suited to the client's overall financial situation.

Responsible Credit Use: A Pillar of Your Financial Health

Responsible credit use goes beyond paying bills on time. It involves strategically managing all your credit products, which directly influences your credit score, mortgage borrowing capacity, and financing terms. In Canada, credit agencies Equifax and TransUnion use sophisticated algorithms that assign significant weight to how you manage available credit. AMF-certified mortgage brokers in Quebec must master these concepts to guide clients toward optimal mortgage qualification.

Credit Utilization Rate

The credit utilization rate represents the percentage of revolving credit used relative to the available limit. It is the second most important factor in your credit score, after payment history. The calculation is straightforward: if you have a $2,000 balance on a card with a $10,000 limit, your utilization rate is 20%. Key industry-recognized thresholds are as follows: below 10% is excellent, below 30% is good, between 30% and 50% is acceptable but may limit your score, between 50% and 75% becomes concerning, and above 75% represents a major risk signal for lenders.

Credit Rotation and Diversity

Credit rotation refers to the regular use of your credit accounts followed by repayment in a cyclical manner. This practice demonstrates to lenders that you can manage credit responsibly. Scoring algorithms also favour diversity in credit types: having a mix of revolving credit (credit cards, line of credit) and instalment credit (auto loan, personal loan) is viewed positively. However, do not open new accounts solely to diversify your file, as each new application generates a credit inquiry that can temporarily affect your score.

Impact on Mortgage Qualification

To obtain a mortgage in Canada, lenders and CMHC rigorously evaluate your credit profile. OSFI's B-20 guidelines impose maximum debt service ratios: the gross debt service ratio (GDS) must not exceed 39%, and the total debt service ratio (TDS) must not exceed 44%. The TDS ratio includes all credit obligations: mortgage payments, property taxes, heating, plus minimum payments on credit cards, loans, and lines of credit. A high utilization rate on your revolving products increases your minimum monthly payments, which raises your TDS ratio and can reduce the mortgage amount you qualify for.

  • For a CMHC-insured mortgage: minimum of 2 active tradelines for at least 2 years, with impeccable payment history.
  • Typical minimum credit score: 600 for A lenders (680+ for best rates), 500-600 for B lenders.
  • Any revolving balance above 75% of the limit can trigger additional conditions or a decline.
  • Delinquent accounts (R2 and above) generally must be brought current before approval.

Best Practices for Optimal Management

  1. Keep utilization under 30%: On each card and line of credit, keep your balance below 30% of the limit. If needed, request a limit increase (without a hard credit inquiry if possible) to improve your ratio.
  2. Automate minimum payments: Set up automatic payments for at least the minimum required on each account. A single payment more than 30 days late can reduce your score by 50 to 100 points.
  3. Use credit regularly: An account inactive for a long time does not help your file. Make small regular purchases on your cards and pay them in full to demonstrate responsible and active use.
  4. Review your file regularly: Check your credit file for free through Equifax and TransUnion at least once per year. Verify the accuracy of the information and dispute any errors immediately.

The AMF-certified mortgage broker in Quebec plays an essential educational role with clients. By helping them understand and optimize their credit usage well before the mortgage application, the broker significantly increases the chances of approval at the best terms. The LDPSF requires the broker to ensure their recommendations are suited to the client's actual financial situation, including a complete assessment of credit management.

Frequently Asked Questions

What is the ideal credit utilization rate?
Experts recommend maintaining a utilization rate below 30% on each revolving account (credit cards, lines of credit). For example, if your card has a $10,000 limit, keep your balance below $3,000. Ideally, staying under 10% will maximize your credit score.
Is the utilization rate calculated per card or overall?
Both matter. Equifax and TransUnion calculate utilization per individual account and the overall rate (sum of all revolving balances divided by sum of all limits). A mortgage lender will examine both. Having one card at 90% utilization can hurt even if the overall rate is low.
Is it true that paying my full card balance each month is the best strategy?
Yes, paying the full balance before the due date avoids interest and demonstrates responsible management. However, if the full balance is reported before payment, your utilization rate may appear high. Ideally, make a partial payment before the statement closing date, then pay the remaining balance at the due date.
Does credit rotation influence my mortgage application?
Yes. Lenders and CMHC examine the age and diversity of your credit accounts. Having a history of 2 active credit accounts for at least 2 years, with regular payments, is generally the minimum required for a CMHC-insured mortgage. Healthy rotation (regular use + repayment) is viewed favourably.
Should I close credit cards I no longer use?
Generally no. Closing an account reduces your total available credit, which increases your overall utilization rate. Additionally, if it is your oldest account, closing it could reduce the average age of your credit file. Keep accounts open with a zero balance or small periodic usage.

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Educational information only. This does not constitute financial advice under the Act Respecting the Distribution of Financial Products and Services (LDPSF). Consult an AMF-certified mortgage broker before making any financial decision.

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