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Credit Cards

How Do Credit Cards Work?

What Is a Credit Card?

A credit card is a financial tool that lets you borrow money from a lender (usually a bank) to make purchases, up to a set limit. You agree to pay back what you spend, and if you don’t pay it in full by the due date, you’ll be charged interest.

Unlike a debit card, a credit card doesn’t draw from your bank account directly,  it uses borrowed money that belongs to the bank or financial institution that issues the card.


How Credit Cards Work

Here’s what happens when you use a credit card:

  1. You make a purchase (online, in-store, or over the phone).

  1. The bank pays the merchant on your behalf.

  1. You get a statement showing what you owe for the month.

  1. You choose to pay the full amount (interest-free) or a minimum payment (with interest).

  1. Interest accrues on unpaid balances unless it’s a 0% promo or you're still within a grace period.

Key Credit Card Terms

  • Credit Limit: The maximum amount you’re allowed to borrow.

  • Statement Balance: What you owe at the end of your billing cycle.

  • Minimum Payment: The smallest amount you must pay to stay in good standing.

  • Interest Rate (APR): The annual rate charged on balances you carry.

  • Grace Period: The time between your statement and due date when you can pay interest-free.

Pros and Cons of Credit Cards

Pros

  • Build credit history

  • Earn rewards or cash back

  • Purchase protection and fraud protection

  • Emergency purchasing power

Cons

  • High interest rates on unpaid balances

  • Easy to overspend

  • Late payments hurt your credit score

How to Use Credit Cards Wisely

  • Pay your balance in full each month to avoid interest.

  • Keep your utilization low — under 30% of your credit limit.

  • Set up automatic payments to avoid late fees.

  • Only charge what you can afford to pay back.

Key Takeaways

  • A credit card lets you borrow money to pay for things now and pay it back later.

  • You can avoid interest by paying your balance in full each month.

  • Responsible use builds your credit score — and misuse can hurt it fast

Common Questions

Q: What happens if I only pay the minimum?

A: You’ll be charged interest on the remaining balance, and it’ll take much longer to pay off your debt.

Q: Can I use a credit card to build credit?

A: Yes — regular, on-time payments and low utilization help improve your credit score.

Q: What’s a typical interest rate?

A: Most Canadian credit cards charge 19–22% APR on unpaid balances. Some cards offer lower rates or 0% promotions.

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Credit Cards
Credit Card Interest Guide

Credit card interest is the cost of borrowing money when you don’t pay off your full balance by the due date. It’s typically expressed as an Annual Percentage Rate (APR) and can vary by card type, issuer, or transaction.

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Credit Card Minimum Payments Explained

A minimum payment is the smallest amount you must pay on your credit card by the due date to keep your account in good standing. It prevents late fees and credit damage, but leaves interest charges on the rest of your balance.

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Credit Card Best Practices

Knowing how to use credit cards wisely can save you money, boost your financial health, and make the banks work for you, instead of the other way around.

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Credit Utilization Explained

Credit utilization is the percentage of your available credit that you're currently using. It’s a key factor in your credit score, and one of the easiest things you can improve quickly in order to increase your credit score.

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Credit Scores Explained

A credit score is a three-digit number that represents your creditworthiness, or how likely you are to repay borrowed money. In Canada, credit scores typically range from 300 to 900. The higher your score, the better your credit profile looks to lenders.

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