Credit Card Payoff Calculator 2026

How Credit Card Payoff Works

Credit cards charge interest daily on your balance, quoted as an APR (Annual Percentage Rate). Each month, interest is added first, then your payment reduces what's left. Because interest compounds on the remaining balance, paying just a little more each month can cut years — and thousands of dollars — off your payoff. The average US credit card APR is around 20–24%, so the cost of carrying a balance is high.

The Minimum Payment Trap

Minimum payments are usually about 1–3% of your balance. They're designed to keep you in debt as long as possible. Here's how a $5,000 balance at 22% APR plays out:

Illustrative, fixed payment, 22% APR, no new spending.

Why Overpaying Works So Disproportionately

Interest is charged on the balance, so every extra pound or dollar you pay reduces not just the debt but all the future interest that balance would have generated. That is why the effect of overpaying is never proportional. Look at the table above: doubling the payment from $100 to $200 does not halve the payoff time — it cuts it from over eleven years to under three, and saves nearly $7,000 in interest.

The reason is that at low payments almost everything goes to interest. On a $5,000 balance at 22% APR, the first month's interest alone is about $92. A $100 payment leaves roughly $8 to reduce the debt; a $200 payment leaves $108 — more than thirteen times as much progress from twice the money.

This is also why the calculator warns you when a payment is below the monthly interest. At that point the balance grows no matter how long you keep paying, and no payment schedule will ever clear it.

Avalanche vs Snowball, and When Each Wins

With several cards, the order you clear them in changes the total cost. The two established approaches optimise for different things:

• Avalanche — pay the minimum on everything, then put every spare pound at the highest APR first. This is mathematically optimal and always costs the least in total interest.
• Snowball — target the smallest balance first regardless of rate. It costs more, but clearing an entire account early produces a visible win that keeps some people going.

The honest answer is that the gap between them is usually smaller than people expect — often a few hundred in interest and a month or two — while the gap between following a plan and abandoning one is enormous. Choose avalanche if the numbers motivate you and snowball if progress does. The worst option is spreading extra payments evenly across every card, which delays every payoff at once.

Balance Transfers and Consolidation: The Real Arithmetic

A 0% balance transfer can be genuinely powerful, because for the promotional period every payment reduces principal instead of feeding interest. The arithmetic that decides whether it is worth it is simple: compare the transfer fee, typically 3–5% of the balance, against the interest you would otherwise pay during the promotional window. Moving $8,000 at a 3% fee costs $240 up front — trivial against the roughly $1,700 a year that balance would accrue at 22%.

The trap is the end of the promotion. A transfer only helps if you clear the balance before the standard rate begins, so divide the balance by the number of promotional months and treat that as a fixed commitment. If it does not fit your budget, the transfer is postponing the problem rather than solving it — and the post-promotional rate is often higher than the card you left.

Consolidating into a fixed-rate personal loan works differently: it usually will not beat 0%, but it has a defined end date and cannot be revoked, which suits anyone who would be tempted to spend on a newly cleared card. Whichever route you take, the deciding factor is not the headline rate — it is whether the card stays unused afterwards.

Frequently Asked Questions