Credit Card Payoff Calculator
Find out how long it will take to pay off a credit card balance, how much total interest you'll pay, and what payment is needed to reach a target payoff date.
How to Use
- Enter your current credit card balance in dollars.
- Enter the card APR (annual percentage rate). It's on your statement, often 18–29% for U.S. cards.
- Enter what you actually pay each month — the calculator assumes you keep that amount fixed and don't add new charges.
- Read the payoff time, total interest, and total amount paid in the breakdown panel.
- Watch for the warning that fires when your payment is at or below the monthly interest charge — in that case the balance grows and the card can never be paid off.
- Try increasing the monthly payment by $25, $50, or $100 to see how dramatically it cuts the payoff timeline.
Formulas
A Brief History of the Credit Card
The first general-purpose credit card was launched by Diners Club in 1950, founded by Frank McNamara after he forgot his wallet at a New York restaurant. It charged a fee, was paid off in full each month, and was accepted at participating restaurants only. American Express launched in 1958 with a similar charge-card model. The revolving-credit card — where balances can be carried month-to-month with interest — arrived with Bank of America's BankAmericard (now Visa) in 1958, which mailed 60,000 unsolicited active cards to Fresno residents in a launch known as the "Fresno Drop." Mastercard followed in 1966. Federal regulators eventually banned unsolicited card mailings in 1970 after widespread fraud and abuse.
The Marquette Bank decision in 1978 dramatically reshaped the industry: the Supreme Court ruled that a card issuer could charge the interest rate of its home state regardless of where the cardholder lived. South Dakota and Delaware promptly removed their interest-rate caps to attract issuers, and most major U.S. credit cards have been issued from those two states ever since. Maximum APRs effectively became unlimited.
The Credit CARD Act of 2009 imposed the first significant federal restrictions in decades: required minimum-payment payoff disclosures (the "if you only pay the minimum" warning that now appears on every statement), restrictions on retroactive rate increases, and a ban on cards for under-21s without income or a co-signer. Total U.S. credit card debt reached $1 trillion for the first time in 2023 and continues to climb; the calculation above is the same one regulators ask issuers to display, applied to your specific numbers.
About This Calculator
This calculator simulates the standard credit-card revolving-credit math: each month interest equals balance × (APR / 12), the payment is applied, and the new balance carries forward. The closed-form solution above is shown for transparency, but the calculator runs the iteration so it can detect the case where the payment doesn't even cover the monthly interest — in that scenario the balance grows without bound and the calculator displays a warning instead of an impossible payoff date.
What it doesn't model: new charges added during the payoff period, late fees, over-limit fees, cash-advance APR (typically higher than purchase APR), or promotional 0% periods. It assumes a fixed monthly payment and no new spending. If you can't avoid putting more on the card while paying it down, the only honest answer the calculator can give is "longer than this." Everything runs entirely in your browser; no balance, APR, or payment information is transmitted or stored.
Frequently Asked Questions
Why are credit card APRs so high?
Credit cards are unsecured revolving credit — there's no collateral the bank can repossess if you default. Combined with the bank covering ~3% of all charges in fraud losses, expensive customer-service infrastructure, and rewards programs paid out to cardholders, APRs of 18–29% are typical. Subprime cards run higher; secured cards and credit-union cards can run lower.
What's wrong with paying just the minimum?
Minimum payments are typically 1–2% of the balance plus monthly interest, structured to maximize the lender's revenue. On a $5,000 balance at 22.99% APR with a $100 (2%) minimum, you'd pay over $13,000 total and take more than 30 years. The federal CARD Act of 2009 requires every monthly statement to disclose this — but the calculations are easier to ignore than to confront.
Should I use a balance transfer card?
0% balance transfer offers (typically 12–21 months) can save thousands if you pay off the balance during the promotional period. The catches: 3–5% transfer fee up front, the rate jumps to 20%+ after the promo ends, and missing a payment usually voids the promotional rate. They work well for disciplined payoff plans, poorly as a way to delay the problem.
Is debt avalanche or snowball better?
Debt avalanche (highest APR first) saves the most money mathematically. Debt snowball (smallest balance first) builds psychological momentum and works better for many people in practice. Pick whichever you'll actually stick with — consistency beats optimization.
How does the daily periodic rate work?
Most U.S. cards calculate interest using a daily periodic rate: APR / 365. Each day, your average daily balance is multiplied by that rate. At the end of the cycle the daily charges are summed. This compounds slightly faster than monthly. The calculator above uses monthly compounding for simplicity; the real-world difference is small (a few dollars per year on typical balances).
Will paying off my card hurt my credit score?
Usually it improves it. Paying off a high-utilization card reduces your credit utilization ratio, which is roughly 30% of your FICO score. Don't close the card after paying it off, though — keeping the account open with a $0 balance preserves your available credit and account-age history.
Common Use Cases
Reality-checking the minimum payment
See exactly how long the issuer's minimum will keep you in debt. Often a useful wake-up call for someone who's been making minimums for years.
Setting an aggressive payoff goal
Pick a target date (12, 24, or 36 months from now) and work backward to find the monthly payment required.
Comparing payment increases
Show side-by-side how $200, $300, and $400 monthly payments compare in payoff time and total interest.
Evaluating a 0% balance transfer
Calculate the payoff at your current APR vs. paying the same amount on a 0% transfer card (with the transfer fee added to the balance).
Debt snowball planning
Run the calculator on each of your cards to plan the order in which you'll attack them.
Negotiating a hardship rate
Many issuers will lower your APR temporarily if you call and ask, especially if you've been a customer for a while. The calculator quantifies the dollar value of a 5% APR reduction.
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