Credit Card Payoff Calculator

What it tells you

Enter your card and the calculator returns one of three answers. If your payment outruns interest plus spending, you get a payoff date and the total interest along the way. If spending and interest outrun your payment, it shows when you would reach your credit limit instead. If the balance drifts without doing either inside the 100-year projection window, it says so. The chart plots the path over time, and you can switch it between your balance, the interest you have paid so far, and your utilization — the balance as a percentage of your credit limit.

Assumptions & Limitations

Interest is charged each month on the balance carried into that month, at your APR compounded the way card issuers do it. New spending and the annual fee are added after that month's interest, so they begin accruing the following month. Your payment, monthly spending and interest rate are all held steady for the length of the projection, and the annual fee is charged to the card, so it carries interest like the rest of the balance.

Your credit limit is treated as fixed. In practice an issuer can lower it if your balance stays high or a payment slips, which brings the ceiling down toward you, or raise it once you have shown a steady history of repayment, which moves the ceiling away. Either one changes when, or whether, you reach it.

The annual fee is assumed to land 6 months from now and every 12 months after; a known renewal date would shift the totals a little. Nothing beyond interest and that fee is modeled — late fees, over-limit fees, penalty interest, cash-advance charges, promotional 0% periods and rewards or cashback are all left out.

A note on minimum payments

This calculator uses a single fixed payment: the amount you enter, repeated every month. A real card minimum is rarely a fixed number, and issuers do not all work it out the same way. Most minimums follow one of these shapes:

• A flat floor: A set dollar amount, often around $25 to $35, used whenever a percentage would come out lower. Small balances tend to rest at this floor.
• A share of the balance: A percentage of the full statement balance, which already includes that month's interest and fees — commonly 2% to 4%. Because it is a percentage, the amount required shrinks month by month as the balance falls.
• Interest and fees plus some principal: The month's interest and any fees in full, plus a small slice of the remaining principal, frequently around 1%. This nudges the balance down every month, but slowly.

Two things follow from this. A percentage-based minimum moves with your balance — it rises as the balance grows and eases as it falls — so a fixed payment that clears the card here can look optimistic beside a real minimum that keeps dropping. That shrinking minimum is the usual reason a card lingers for years. And the payment you enter may be below what your issuer would actually require in a given month, most likely early on when the balance and its interest are largest. A payment that falls short of the true minimum can bring late fees, penalty interest and a mark on your credit report, none of which appears here.

So read the payoff date and totals as a projection of the habits you entered, not a schedule your issuer will hold you to. Check a recent statement for your card's minimum and how it is worked out, and where you can, commit to a fixed amount comfortably above it — a steady payment that does not shrink with the balance is what turns the slow path into the fast one.

Calculator Inputs

• Credit limit: The most the card lets you borrow. The calculator uses it to tell you when a growing balance would max out.
• Balance: What you owe on the card today, from your latest statement.
• Interest: The card’s APR as a percentage. Card rates are usually much higher than loan rates, which is why a carried balance grows so fast.
• Monthly payment: What you put toward the card each month. If this does not cover the interest plus your new spending, the balance climbs toward the limit.
• Monthly spend: What you expect to keep charging to the card each month. Enter 0 if you have stopped using it. This is what sets a card apart from a fixed loan.
• Annual fee: The card’s yearly fee, if it has one. Leave it blank for a no-fee card. It is charged to the card 6 months from now and every 12 months after.

Understanding Your Results

The headline is the verdict: a payoff date, a date you reach your limit, or a note that the balance keeps drifting. Below it are the totals — the interest you would pay, the annual fees, and everything you would put toward the card over the projection.

If the result is a limit warning, the fix is to raise your payment above your interest plus monthly spending, cut the spending, or both. Small changes move the verdict, so it is worth trying a few. Clearing the balance and switching to paying it in full each month is the point where a card stops costing you interest.

The monthly breakdown below the result opens a month-by-month snapshot: the interest, spending, any fee, your payment and the balance left at the end of each month. It is where you can watch the annual fee land and see how quickly interest eats into a low payment.