Credit Card Payoff Calculator

Turn a monthly payment into a payoff plan

Enter the current balance, purchase APR and fixed monthly payment. The calculator estimates the payoff time, total interest and total paid, then shows how the balance changes year by year. Add an extra monthly amount to see the time and interest it saves.

The plan assumes no new purchases, fees or rate changes. It ends with a smaller final payment so the calculated balance lands on exactly zero.

How the estimate calculates interest

The planning model uses a monthly periodic rate:

monthly rate = APR ÷ 12

Each month, interest is rounded to the cent and added before the payment reduces principal. At 24% APR, the model uses 2% per month. A $5,000 balance therefore adds about $100 of interest in the first month before any payment is applied.

A real statement can differ. The Consumer Financial Protection Bureau explains that many issuers calculate interest daily using an average daily balance. Payment dates, the number of days in a billing cycle, daily compounding and separate rates for purchases, transfers or cash advances all affect the actual charge.

The payment has to reduce principal

If the payment is no greater than the interest being added, the balance does not fall. This tool reports that condition instead of showing an invented date.

Paying only a small amount above interest can still stretch a debt for many years. The payoff time is driven by the part of each payment left after interest, not by the payment alone.

Why an extra payment saves more than its amount

An extra payment goes directly against principal in this model. The next month’s interest is charged on that smaller balance, leaving more of the following payment for principal. The benefit repeats every month.

This is why an extra $25 or $50 can remove more than its face value from the total cost. The comparison notice measures both effects: months removed and interest avoided.

Fixed payment versus minimum payment

Credit-card minimums are not one universal formula. An issuer may use a percentage of balance, interest plus a percentage of principal, a fixed floor, or other terms. A declining minimum can keep a balance alive far longer than a fixed payment.

The calculator therefore uses the amount you commit to paying every month. If the statement minimum falls, continuing the same fixed amount pays the debt down faster than following it downward.

Limits of the plan

The result excludes purchases, late charges, annual fees, promotional-rate expiration and changes to a variable APR. It also treats the balance as one rate category. Use the card statement for the real balance, rates and interest method.

This is planning arithmetic, not individualized financial advice. If payments are unaffordable, contacting the issuer early and using an appropriate nonprofit or regulated debt-advice service can provide options a calculator cannot model.

Frequently asked questions

How does the payoff calculator work?

Each month it adds APR divided by 12 to the remaining balance, rounds interest to the cent, applies the fixed payment, and repeats until the balance reaches exactly zero. The last payment is reduced to the amount actually owed.

Why might my statement show different interest?

Many issuers calculate interest daily from an average daily balance. Payment timing, billing-cycle length, multiple APR categories, fees and compounding can make a statement differ from a monthly planning model.

What happens if the payment does not cover interest?

The balance cannot fall. The calculator warns instead of inventing a payoff date. The payment must exceed the interest added and needs enough principal reduction to finish within the model's limit.

Why do extra payments help so much?

Every extra dollar reduces principal. All later interest is then charged on a smaller balance, so the extra payment saves interest as well as time.

Does this model minimum payments?

No. Minimum-payment formulas vary by issuer and can change as the balance falls. This calculator uses the fixed monthly amount you enter so the plan is explicit.

Does the calculator include new purchases or fees?

No. It assumes no new charges, late fees, annual fees, balance transfers or rate changes. Adding purchases while paying down the card changes the balance and payoff date.

What should I do if I cannot make the payments?

The calculation cannot resolve hardship or choose a debt strategy. Contact the issuer promptly and consider a reputable nonprofit credit counselor or the appropriate regulated advice service in your country.