Understanding your minimum-payment payoff
The table below shows how the minimum payment percentage changes the payoff outcome on the same $5,000 balance at 24% APR, illustrating why the minimum percentage matters as much as the APR itself.
| Minimum payment % | Outcome at 24% APR |
|---|---|
| 2% (equal to the monthly periodic rate of 24% ÷ 12) | The balance never decreases — every payment is absorbed entirely by that month's interest |
| 3% (floor $25, the calculator's default) | Balance pays off in 224 months (about 18.7 years); total interest $8,414 — well over the original $5,000 balance |
| Higher fixed payment well above the minimum | Payoff time and total interest both fall sharply, since more of each payment reduces principal |
- The 'never pays off' condition occurs specifically when the minimum percentage does not exceed the monthly periodic rate (APR ÷ 12); this is a mathematical description of the payment schedule entered, not a statement about any specific cardholder's situation.
- Because the minimum payment recalculates as a percentage of a shrinking balance, the dollar amount of the minimum payment declines every month even while the payoff clock keeps running, which is part of why minimum-only payoff periods are so long.
- This calculator does not model additional purchases, promotional balance transfers, or penalty APRs that could apply if a payment is missed — it computes payoff purely from the entered starting balance, APR and minimum-payment formula.
What is a credit card minimum payment?
A credit card minimum payment is the smallest amount a cardholder must pay each billing cycle to keep the account in good standing, typically calculated as a percentage of the outstanding balance (commonly 1% to 3%) plus that month's interest and fees, subject to a minimum dollar floor (such as $25). The Consumer Financial Protection Bureau (CFPB) requires issuers to disclose on every statement how long it would take to pay off the balance, and the total interest that would cost, if only the minimum is paid — the same figures this calculator computes.
Because the minimum payment is typically a percentage of the current balance, the required dollar amount declines as the balance declines, which means minimum payments shrink over time even as interest keeps accruing — this is why minimum-payment payoff schedules stretch out for years, far longer than a fixed payment would take.
If the minimum payment percentage does not exceed the monthly interest rate, the balance never decreases under that minimum — every dollar paid is absorbed by interest, and the calculator returns this verdict directly rather than simulating an indefinite payoff.
How to use this credit card minimum payment calculator
- Enter the credit card balance.
- Enter the card's APR.
- Enter the minimum payment percentage the issuer applies to the balance each month.
- Enter the minimum payment dollar floor (the lowest amount the issuer will accept even if the percentage calculation is smaller).
- Read the payoff time in years and months, the total interest paid over that period, and the first month's minimum payment amount.
The formula behind minimum-payment payoff
Each simulated month, interest accrues on the current balance at the monthly rate (APR ÷ 12). The minimum payment is the greater of the stated percentage of the new balance (including that month's interest) or the dollar floor, and it declines as the balance declines because it is recalculated as a percentage each month.
On the verified example — a $5,000 balance at 24% APR with a 3% minimum (floor $25) — the balance takes 224 months (about 18.7 years) to reach zero, with total interest of $8,413.92 and a first minimum payment of $153.00. If the minimum percentage does not exceed the monthly interest rate — for example, a 2% minimum on a 24% APR balance, where the monthly rate alone is 2% — the balance never amortizes, since the payment never exceeds the interest accruing that month.
Common mistakes
- Assuming the minimum payment stays a fixed dollar amount — it typically recalculates as a percentage of the current balance each month, so the required minimum shrinks as the balance shrinks even as total interest keeps accumulating.
- Not checking whether the minimum percentage exceeds the monthly interest rate — if it does not, as can happen with a low minimum percentage and a high APR, the balance never decreases no matter how long minimum payments continue.
- Underestimating total interest paid over a minimum-payment schedule — on the verified example, total interest ($8,414) exceeds the original balance ($5,000), even though each individual payment feels small.
- Confusing the minimum payment floor (a dollar minimum, such as $25) with the minimum payment percentage — both apply, and the issuer charges whichever produces the larger payment.
- Ignoring the payoff-time and total-interest disclosure already printed on every credit card statement, which is required by federal law and calculates the same figures this calculator produces for the cardholder's actual current balance.
Frequently asked questions
How long does it take to pay off a credit card making only the minimum payment?
On the calculator's verified example — a $5,000 balance at 24% APR with a 3% minimum payment (floor $25) — it takes 224 months, about 18.7 years, to pay off the balance making only minimum payments, with total interest of $8,414 over that period.
Why does my minimum payment amount get smaller over time?
Most issuers calculate the minimum payment as a percentage of the current outstanding balance each month, so as the balance declines, the dollar amount of the required minimum payment declines with it. This is part of why minimum-only payoff schedules stretch out for many years — the payment shrinks even as interest continues accruing.
Can a credit card balance never pay off with minimum payments?
Yes, mathematically, if the minimum payment percentage does not exceed the monthly periodic interest rate (APR divided by 12). In that case, every minimum payment is fully absorbed by that month's interest charge, and the balance never decreases — this calculator identifies that condition directly rather than simulating an infinite payoff.
Is minimum-payment total interest really more than the original balance?
It can be, and often is, on cards with high APRs and low minimum-payment percentages. On the calculator's verified example, total interest of $8,414 on an original $5,000 balance is nearly 68% more than the balance itself — a direct result of a long payoff period combined with interest compounding on a slowly declining balance.
Is this the same figure shown on my credit card statement?
It uses the same type of calculation. Federal law requires credit card statements to disclose the estimated time to pay off the balance, and the total interest that would cost, if only the minimum payment is made — this calculator reproduces that calculation so it can be tested with different balances, APRs and minimum-payment structures.
References
- Consumer Financial Protection Bureau (CFPB). What is the minimum payment on my credit card statement? consumerfinance.gov.
- Federal Reserve Board. Regulation Z (Truth in Lending Act) — minimum payment disclosure requirements (CARD Act of 2009). federalreserve.gov.
- Consumer Financial Protection Bureau (CFPB). How the CARD Act protects credit card users. consumerfinance.gov.
- Federal Trade Commission (FTC). Understanding credit card terms. consumer.ftc.gov.