Credit Card Payoff Calculator
The Credit Card Payoff Calculator simulates your balance month by month based on your APR and fixed monthly payment, showing exactly how many months until you're debt-free and how much interest you'll pay. Each month's interest is calculated on the balance remaining at that point (APR ÷ 12), so as the balance shrinks, a growing share of every payment goes toward principal rather than interest. This calculator assumes a fixed dollar payment every month rather than a shrinking minimum-payment formula, which is why paying even a modest amount above your card issuer's minimum can meaningfully shorten your payoff timeline.
How This Tool Works
Enter your current balance, APR, and how much you plan to pay each month to see your payoff timeline and total interest cost.
Formula & Method
Each month, interest is added to the balance at APR ÷ 12, then your payment is subtracted. This repeats until the balance reaches zero, summing total interest paid along the way.
Example Calculation
An $8,000 balance at 24% APR with $300/month payments works out to a monthly interest rate of 24% ÷ 12 = 2%. In month one, interest adds $8,000 × 2% = $160, and the $300 payment brings the balance down to $7,860. Repeating this month by month, the balance reaches zero after 39 months (3 years, 3 months), during which $3,546.79 in total interest accrues — bringing the total amount paid to $11,546.79, or about 44% more than the original $8,000 balance.
Frequently Asked Questions
Why does my payment need to be higher than the interest charge?+
If your payment doesn't exceed the monthly interest charge, your balance will never decrease — it will actually grow over time.
Does this account for new purchases?+
No, this calculator assumes no new charges are added while you pay down the balance. New purchases will extend your payoff timeline.
Would paying more each month help?+
Yes — even a modest increase in your monthly payment can significantly cut both your payoff time and total interest paid. Try increasing the payment amount to see the difference.
How does a fixed payment differ from paying only my card's minimum?+
Card issuers typically compute the minimum payment as a small percentage of your current balance (often 1–3%) plus interest, so the required dollar amount shrinks as your balance drops — stretching payoff out for years. This calculator instead assumes you pay the same fixed dollar amount every month, which pays down the balance faster than minimum payments because it doesn't shrink alongside the balance.
What if my payoff time comes out extremely long, or doesn't show a result?+
If your monthly payment is only slightly above the interest charge, very little of each payment goes to principal, so the simulation can run for decades — this calculator caps its simulation at 1,200 months (100 years) as a safeguard. An unrealistically long payoff time is a sign to increase your monthly payment rather than a bug in the calculation.
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<a href="https://everyfix.net/tools/credit-card-payoff-calculator/">Credit Card Payoff Calculator</a> by <a href="https://everyfix.net">EveryFix</a>Related Tools
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