The traps of credit cards: High interest rates and a drop in credit score

09 May 2026


Credit cards are convenient financial tools, but they come with potential traps that can affect your financial health. Understanding high interest rates, their impact on your credit score, and minimum payments is essential for responsible financial management.

High interest rates: a hidden cost

Interest rates on credit cards are often high, generally between 19.99% and 25.99% in Canada. ([rbcroyalbank.com](https://www.rbcroyalbank.com/fr-ca/mes-finances-dabord/academie-financiere/credit-t-et-emprunt/comprendre-cartes/taux-dinteret-carte-de-credit/?utm_source=openai)) This situation is due to several factors, including the higher risk for credit card issuers, who compensate with higher rates. ([debtsolutions.bdo.ca](https://debtsolutions.bdo.ca/fr-ca/pourquoi-les-t%E2%80%99interet-des-cartes-de-credit-ne-baissent-pas/?utm_source=openai))

Impact on credit score

Although the interest rate itself does not directly affect your credit score, the unpaid balance it generates can have a significant impact. Indeed, the credit utilization rate, which represents the percentage of your available credit that you use, makes up about 30% of your credit score. ([nerdwallet.com](https://www.nerdwallet.com/blog/credit-cards/credit-card-not-carrying-balance?utm_source=openai)) A high balance increases this rate, which can harm your score. Additionally, missed or late payments can also negatively affect your credit score. ([raymondchabot.com](https://www.raymondchabot.com/fr/articles-and-advice/le-credit/cote-de-credit/?utm_source=openai))

Minimum payments: a deceptive solution

The minimum payments offered by credit card issuers may seem like an easy solution, but they often cover only the interest and a small portion of the principal. This means your debt can persist for years, increasing the total cost of your purchases. ([debtsolutions.bdo.ca](https://debtsolutions.bdo.ca/fr-ca/pourquoi-les-t%E2%80%99interet-des-cartes-de-credit-ne-baissent-pas/?utm_source=openai))

Practical tips for healthy management

  • Pay the balance in full every month: This helps you avoid interest and maintain a low credit utilization rate, which is beneficial for your credit score.
  • Avoid cash advances: They often come with higher interest rates and start accumulating interest immediately. ([debtsolutions.bdo.ca](https://debtsolutions.bdo.ca/fr-ca/pourquoi-les-tais-d%E2%80%99interet-des-cartes-de-credit-ne-baissent-pas/?utm_source=openai))
  • Monitor your credit utilization rate: Try not to use more than 30% of your credit limit to preserve your credit score. ([nerdwallet.com](https://www.nerdwallet.com/blog/credit-cards/credit-card-not-carrying-balance?utm_source=openai))
  • Avoid minimum payments: If possible, pay more than the minimum to reduce your debt and the associated interest more quickly.
  • Choose cards with competitive interest rates: Compare offers to find cards with lower rates, which can reduce the cost of your credit. ([bmo.com](https://www.bmo.com/principal/particuliers/cartes-de-credit/faq-carte-de-credit/changement-taux-dinteret/?utm_source=openai))

By adopting these practices, you can use your credit cards to your advantage, avoiding the traps associated with high interest rates and protecting your credit score.

Sources

The information in this article is for general purposes only and may not reflect current laws or regulations. Verify any details with a qualified professional before making decisions. Some portions may have been created with AI assistance and should be confirmed for accuracy.

Written by Luc Lepage