Credit Card Payoff Calculator
See how many months your credit card balance will take to clear at different payment amounts, and how much of your money goes to interest rather than principal.
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What a credit card balance really costs
Credit cards are the most expensive common form of borrowing. Rates above 20 percent are routine, and interest is charged on the balance every month, so the cost compounds quickly. The minimum payment is set by the issuer to keep the account in good standing, and it is almost never designed to clear the balance in a reasonable time.
The mechanism that traps people is that the minimum is a percentage of the balance rather than a fixed sum. As you pay the balance down, the minimum falls with it. So the payment gets smaller exactly as your ability to pay should be getting larger, and the final years of repayment stretch out almost indefinitely. On a 6,000 dollar balance at 24.99 percent with a typical 1 percent minimum, the first payment is 184.95 dollars and the balance takes 254 months to clear, which is more than 21 years, at a cost of 11,360 dollars in interest. You would repay nearly three times what you borrowed, and the payments would still be trickling out in the 2040s.
The escape is simple to describe and requires discipline to execute: replace the percentage minimum with a fixed payment you can sustain. Holding the payment at 300 dollars clears the same balance in 27 months for 1,841 dollars of interest. That is 227 fewer months and 9,519 dollars less interest, and it comes down to one decision about how much you pay each month. Note that a fixed payment is powerful precisely because it does not shrink: the 184.95 dollar minimum falls away as the balance drops, while a 300 dollar payment keeps attacking the principal at a constant rate.
Interest is charged daily on most cards, based on your average daily balance, and then posted monthly. That means the timing of payments within the month has a small effect: paying as early as possible reduces the average daily balance and therefore the interest charge. It is a modest saving, but it is free, and on a large balance over years it adds up.
How credit card interest and payoff time are calculated
Each month the card charges interest on the balance, and whatever remains of your payment reduces the principal.
| Symbol | Meaning |
|---|---|
APR |
Annual percentage rate, the headline rate on your statement |
Balance |
What you owe at the start of the month |
m% |
The issuer's minimum payment percentage, commonly 1 to 3 percent |
floor |
The lowest the minimum can fall to, usually 25 to 40 dollars |
This uses a monthly approximation of the daily-balance method issuers actually use, which keeps the model simple and the result within a few dollars of your statement. The minimum payment is modelled as a percentage of the balance plus interest, because that is how issuers calculate it, and it is the reason minimum payments take so long. If your payment does not exceed the monthly interest, the balance grows and never clears, and the calculator reports that instead of a misleading payoff date.
Worked example: 6,000 dollars at 24.99 percent APR
The same balance cleared at five different fixed payment levels, alongside what happens if you pay only the declining minimum.
| Monthly payment | Months to clear | Equivalent | Total interest | Total repaid |
|---|---|---|---|---|
| $184.95 minimum, then falling | 254 | 21 yr 2 mo | $11,360.48 | $17,360.48 |
| $150 fixed | 87 | 7 yr 3 mo | $7,025.42 | $13,025.42 |
| $200 fixed | 48 | 4 years | $3,511.52 | $9,511.52 |
| $300 fixed | 27 | 2 yr 3 mo | $1,841.44 | $7,841.44 |
| $400 fixed | 19 | 1 yr 7 mo | $1,268.73 | $7,268.73 |
The first row is the trap. Paying whatever the statement asks means 254 months of payments and 11,360 dollars of interest on a 6,000 dollar balance. Committing to a fixed 300 dollars a month instead clears it in 27 months and costs 1,841 dollars, saving 9,519 dollars and 227 months. Note also that a fixed 150 dollars beats the declining minimum on time and interest, even though the first minimum payment is larger at 184.95 dollars.
Estimates only. Your lender's figures may differ because of fees, escrow and rounding.
Clearing a card balance
Stop using the card while you pay it down
New spending on a card you are repaying usually attracts the same high rate immediately, with no grace period, because the balance is already revolving. Every new purchase extends the payoff date and makes the plan harder to keep.
Ask for a rate reduction
Issuers will often lower an APR on request for a customer with a clean payment history, particularly if you mention a competing offer. A call of a few minutes can reduce the rate by several points, which on a large balance is worth far more than the time it takes.
Pay before the statement closes
Interest is charged on the average daily balance, so a payment made earlier in the cycle reduces the balance for more days and lowers the charge. The effect is small in any single month and meaningful across a year.
Do not close the account once it is clear
Closing a card reduces your available credit and therefore raises your credit utilisation ratio, which can lower your score. Keep the account open with a small recurring charge you clear monthly, or simply leave it dormant.
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Frequently asked questions
How long will it take to pay off my credit card?
It depends almost entirely on your payment, not on the balance. A 6,000 dollar balance at 24.99 percent clears in 27 months at a fixed 300 dollars a month, but takes 87 months at 150 dollars and 254 months if you pay only a falling 1 percent minimum. Enter your own figures above to see your timeline and the interest each approach costs.
Why is my minimum payment going down?
Because most issuers calculate it as a percentage of the balance plus that month's interest. As the balance falls, the minimum falls with it. This is the main reason minimum payments take decades to clear a card, and why converting to a fixed payment is the most effective single change you can make.
Is it worth transferring a balance to a 0% card?
It can be, if the transfer fee is modest relative to the interest you avoid and you can clear the balance within the promotional period. Zero percent for 18 months on a 6,000 dollar balance saves roughly 2,250 dollars of interest at 24.99 percent, against a transfer fee of around 180 to 300 dollars.
What if I can only afford the minimum?
Pay the minimum to protect your credit, but treat the situation as urgent. Contact the issuer and ask about hardship programs, which can reduce the rate temporarily, and consider a reputable non-profit credit counselling service. Avoid fee-charging debt settlement companies.
Does paying more than the minimum help immediately?
Yes. Every dollar above the minimum goes entirely to principal, and reducing principal reduces next month's interest charge permanently. The effect is immediate and cumulative, which is why the difference between payment levels in the table above is so large.