Credit card payoff calculator

Key takeaway: Every card payment is split before it does anything useful — interest comes off the top, and only the remainder shrinks the balance. Your payoff timeline is that split repeated until you hit zero, so there are exactly two ways to shorten it: raise the payment, or lower the rate.

If you're carrying a balance, paying roughly the same amount toward it each month, and want a straight answer — when does this end, and what will it cost me — start here. This page answers the one question underneath every payoff strategy: given this balance, this APR, and this payment, when do I reach zero? Every other credit card calculator on this site is a variation on that baseline.

What your APR does to every payment

APR — annual percentage rate — is the yearly cost of borrowing on your card. Your issuer doesn't charge it once a year; it divides it by twelve and applies that slice to whatever balance you're carrying each billing cycle. The plain-English formula the whole calculator runs on is short: monthly interest equals your balance times your APR divided by twelve, and principal paid equals your payment minus that interest.

That minus matters: interest isn't tacked on at the end, it's collected off the top of the payment you send. At the current average rate on interest-charging accounts, 24.35%, a sizable chunk of every payment disappears before a cent of debt does — and the smaller the payment relative to the balance, the larger that share.

The default numbers, walked through

Take the calculator's starting inputs: a $6,200 balance, a 22.9% APR, and $160 a month.

Month one: 22.9% divided by twelve is about 1.908%, and 1.908% of $6,200 is $118.32. That's the interest charge. Your $160 payment covers it with $41.68 to spare, so after a full month and a full payment, you owe $6,158.32 — roughly 74 cents of each dollar went to the issuer, not the debt.

Month two runs the same arithmetic on a slightly smaller balance, so a bit more reaches principal — a shift that starts glacial and accelerates near the end. Carried to completion: 72 months — six full years — with $5,184.81 in interest, for $11,384.81 paid in total. That's about 84 cents of interest per dollar originally borrowed.

Pay more, or lower the rate — which moves your date more?

Both levers act on the same split from opposite sides: paying more widens the principal share, and a lower APR shrinks the interest share so the same payment reaches further. On the default scenario:

• Pay $50 more. At $210 a month, payoff drops from 72 months to 44 — 28 months sooner — and interest falls from $5,184.81 to $3,007.14, a savings of $2,177.67.
• Cut the rate by 5 points. At 17.9% with the same $160 payment, payoff drops to 59 months — 13 months sooner — and interest falls to $3,123.68, saving $2,061.13.

The dollar savings land in the same neighborhood, but the extra payment moves the date more than twice as far — the usual pattern when the payment is small relative to the balance. The trade-off: the payment lever costs $50 of budget every month, while a lower rate, if you can get one, is free once you have it. The levers also stack — do both and this balance clears in 40 months with $2,033.81 of interest.

To go deeper on either lever, hand it to the specialist: the extra payments calculator prices each additional dollar, the APR comparison sweeps a range of rates at your balance, and the balance transfer breakeven calculator tests the most aggressive rate move — a 0% promo — against its transfer fee.

What this calculator assumes

Three things hold steady for the whole projection: your APR, your payment, and the balance itself — no new purchases land on the card. Real life is messier: variable APRs drift with the prime rate, and a fixed payment won't match the shrinking minimum your issuer requests. If that minimum is genuinely all you can manage, the minimum-payment-only calculator models that decaying path instead. Treat the result as a projection of a steady plan, not a prophecy.

How we calculate this

Under the hood is declining-balance amortization run in whole cents — the same accounting behind the interest line on your statement. Each simulated month we take one-twelfth of your APR times the current balance as interest, subtract it from your payment, and put the remainder toward principal, looping until nothing is owed. The final payment is usually smaller: just enough to reach zero. If your payment doesn't cover even the first month's interest, the calculator says the balance would never be paid off rather than showing a fake date.

Frequently asked questions

How is my credit card payoff date calculated?

Each month, interest is added to your balance based on your APR, then your payment is applied. Whatever is left after interest reduces the principal. We repeat that month by month until the balance reaches $0 — the month that happens is your payoff date.

Why does paying only a little extra save so much?

Interest is charged on your remaining balance, so every extra dollar of principal you knock out stops accruing interest for the entire rest of the payoff. Early extra payments compound the most, which is why even $50–$100 more a month can cut years off the timeline.

What counts as the APR I should enter?

Use the purchase APR shown on your statement — it's the yearly rate your issuer charges on carried balances. If your card has different rates for purchases, transfers, and cash advances, enter the one that applies to the balance you're paying down.

Does the calculator account for new purchases on the card?

No — it assumes the balance only moves down. Each new charge accrues interest on a bigger balance and pushes your date back. Many people route everyday spending elsewhere while paying a card down, so a projection like this stays true.

Why is my payoff estimate different from the disclosure box on my statement?

The disclosure on your statement must assume you pay only the required minimum, which is recalculated downward as your balance falls, so its timeline stretches far longer. This calculator assumes a constant payment — closer to how people actually budget, and always faster than the minimum-only path.

Sources

• Federal Reserve, G.19 Consumer Credit report (Federal Reserve G.19 Consumer Credit report, as of 2026-05-01)
• Consumer Financial Protection Bureau, Credit cards