How the Credit Card Payoff Calculator works
Credit card payoff is not a simple balance-divided-by-payment calculation because interest is charged on the remaining balance. The payment must exceed monthly interest for the debt to decline.
Method: Each month adds interest to the remaining balance and subtracts the entered payment until the balance reaches zero.
Inputs to review
- Credit card balance: Use a realistic current value and test a conservative alternative.
- Annual percentage rate: Use a realistic current value and test a conservative alternative.
- Monthly payment: Use a realistic current value and test a conservative alternative.
- Additional monthly payment: Use a realistic current value and test a conservative alternative.
How to interpret the result
Increase the extra-payment input to see how even a consistent additional amount changes payoff time and interest. Stop adding new charges when using the estimate as a repayment plan.
Assumptions and limitations
Card issuers may calculate interest using average daily balances, compound daily, change APRs, or assess fees. This monthly model is an estimate and assumes no new purchases.
Recalculate when rates, balances, income, goals, or time horizons change. A useful estimate is a range built from several plausible scenarios, not a single precise-looking number.