How Credit Card Interest Works
Credit card interest is calculated using compound interest, which means you pay interest on interest. Here's how it accumulates:
- Monthly Calculation: Interest = Outstanding Balance × (APR ÷ 12 ÷ 100)
- Compounding Effect: Each month, interest is added to your balance, increasing the amount that earns interest next month
- Minimum Payments: Banks require only 2-3% of your balance, but this can keep you in debt for years
- Grace Period: Only applies to new purchases, not existing balances
Why Minimum Payments Are Dangerous
Many people only pay the minimum required amount, thinking they're making progress. However:
- If minimum payment < monthly interest, your debt grows
- You end up paying 2-3x the original amount in interest
- Debt can take 10+ years to clear with minimum payments
- You're essentially paying rent on your own money
Smart Debt Payoff Strategies
- Pay More Than Minimum: Aim for 5-10% of balance monthly
- Snowball Method: Pay off smallest debts first for psychological wins
- Avalanche Method: Pay highest interest debts first for maximum savings
- Balance Transfer: Move to 0% APR cards (if you can pay during promotional period)
- Negotiate Rates: Call your issuer and ask for lower APR
Credit Card Terms You Should Know
- APR (Annual Percentage Rate): Total cost of borrowing per year
- Grace Period: Time before interest starts accruing on new purchases
- Cash Advance: Borrowing against your credit limit (usually higher fees)
- Foreign Transaction Fee: Extra charge for international purchases
- Annual Fee: Yearly charge for having the card