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How much interest do I pay per month on my credit card?

Financial Toolset Team4 min read

Monthly interest ≈ (Balance × APR) ÷ 12. For $5,000 at 18% APR, that's about $75/month. However, because interest compounds daily, the actual amount can be slightly higher. Use this calculator to s...

How much interest do I pay per month on my credit card?

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Understanding Your Credit Card Interest: How Much Do You Pay Each Month?

Credit card debt can be a daunting financial burden, especially when interest charges start piling up. If you’re curious about how much interest you pay per month on your credit card, you’re not alone. Understanding how credit card interest works can help you manage your debt more effectively and make informed financial decisions. In this article, we’ll break down the process of calculating monthly interest, provide real-world examples, and highlight key considerations.

How Is Credit Card Interest Calculated?

Most credit card issuers calculate interest using the average daily balance method. Here’s a step-by-step guide:

  1. Convert APR to a daily rate: Divide your card’s Annual Percentage Rate (APR) by 365.

    • Example: For a 20% APR, the daily rate is 0.0548% (20% ÷ 365).
  2. Calculate your average daily balance: Add up your daily balances for the billing cycle and divide by the number of days in the cycle.

    • Example: If your balance is $1,000 every day for a 30-day month, your average daily balance is $1,000.
  3. Calculate monthly interest: Multiply the average daily balance by the daily rate, then multiply by the number of days in the billing cycle.

    • Example: $1,000 × 0.000548 × 30 ≈ $16.44

Some issuers may compound interest daily, slightly increasing the total interest charged.

Real-World Examples

Let’s take a look at a couple of scenarios to illustrate how this works in practice.

Example 1: Moderate Balance

  • Balance: $2,000
  • APR: 18%
  • Billing Cycle: 30 days

Calculations:

  • Daily rate: 18% ÷ 365 ≈ 0.0493%
  • Monthly interest: $2,000 × 0.000493 × 30 ≈ $29.58

Example 2: High Balance with Minimum Payments

Calculations:

  • Daily rate: 20% ÷ 365 ≈ 0.0548%
  • Monthly interest: $5,000 × 0.000548 × 31 ≈ $84.91

Paying only the minimum allows interest to accumulate quickly, turning short-term debt into a long-term financial burden.

Common Mistakes and Considerations

When managing credit card debt, be mindful of these common pitfalls:

Bottom Line

To control your credit card interest charges, it’s crucial to understand how they are calculated. By using the average daily balance method, you can estimate your monthly interest costs and make smarter financial decisions. Remember, paying your balance in full each month and understanding the terms of your credit card agreement are key strategies to avoid unnecessary interest expenses. If you’re currently carrying a balance, consider creating a repayment plan to minimize interest and improve your financial well-being. Regularly reviewing your credit card statements will keep you informed and ready to manage your debt effectively.

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Common questions about the How much interest do I pay per month on my credit card?

Monthly interest ≈ (Balance × APR) ÷ 12. For $5,000 at 18% APR, that's about $75/month. However, because interest compounds daily, the actual amount can be slightly higher. Use this calculator to s...
How much interest do I pay per month on my c... | FinToolset