Credit Card Minimum Payment Calculator

See how long paying only the minimum keeps you in debt — and what the minimum payment trap really costs.

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This calculator answers one specific question: what happens if you only ever pay the minimum on a credit card? Unlike a fixed-payment payoff plan, the minimum payment is recalculated every month as a percentage of your shrinking balance — so as you pay the balance down, the required payment shrinks with it, and your progress slows to a crawl. That is the minimum payment trap: the schedule is designed so that payoff takes decades, not years, and total interest often exceeds the original balance. Enter your balance, APR, and your card's minimum payment formula (most issuers use 1–3% of the balance with a $25–35 floor — check your statement), and the simulation walks month by month through the declining-minimum schedule to show the true payoff time, total interest, and total amount paid. It then contrasts that with a simple alternative: keeping your payment fixed at the very first month's minimum instead of letting it shrink. That one behavioral change — paying the same dollar amount every month — routinely cuts payoff time by more than half without ever paying more than you did in month one. If you want to model a specific fixed payment amount instead, use the Credit Card Payoff Calculator; this tool is specifically about what minimum-only payments cost.

How It Works

Each month the simulation applies your card's actual minimum payment rules. First, interest accrues: Monthly Interest = Balance × (APR ÷ 12). Second, the minimum payment is recalculated as the greater of (balance × minimum %) or the dollar floor — this is the key difference from a fixed payment plan, because the required payment shrinks as the balance shrinks. Third, the payment is applied: interest first, remainder to principal. The cycle repeats until the balance reaches zero (capped at 100 years). Because the payment declines in step with the balance, the principal reduction per month stays small for years — that is the mathematical heart of the minimum payment trap. The comparison schedule runs the identical simulation with one change: the payment stays frozen at the first month's minimum. Note that issuers' exact minimum formulas vary — some use interest + 1% of principal rather than a flat percentage of balance, and any formula where the percentage does not exceed the monthly interest rate can never pay off the card, which the calculator flags as an error rather than reporting an infinite payoff.

Examples

$5,000 at 24.99% APR — 3% minimum, $25 floor
A typical balance on a typical card, paying only what the statement demands.
Result: About 21 years to pay off with roughly $10,000 in interest — versus under 5 years and $6,400 less interest if you simply froze the payment at the first minimum of $150.
$2,500 at 21.99% APR — 2.5% minimum, $30 floor
A smaller balance, but a skinnier minimum formula.
Result: Roughly 15 years and about $4,550 in interest — nearly twice the original balance.
$10,000 at 27.99% APR — 3% minimum, $35 floor
A large balance at a penalty-tier APR.
Result: Over 32 years and roughly $32,000 in interest — more than triple the original debt.

Frequently Asked Questions

How is this different from the Credit Card Payoff Calculator?
The Credit Card Payoff Calculator models a fixed monthly payment that you choose — the payment stays the same until the debt is gone. This calculator models the minimum payment as issuers actually compute it: a percentage of the current balance, recalculated monthly, so the payment shrinks as you make progress. The declining schedule is what makes minimum-only payoff so slow, and it's why the two calculators answer different questions: 'how fast will my plan work?' versus 'what happens if I do nothing but the minimum?'
Why does the minimum payment shrink over time?
Issuers set the minimum as a formula — commonly 1–3% of the statement balance, or interest plus 1% of principal, with a dollar floor of $25–35. As your balance falls, the formula produces a smaller required payment. That feels like relief, but it means your principal reduction slows down almost as fast as you pay: near the end of the schedule you're paying only the floor amount. Freezing your payment at the original minimum — the comparison this calculator shows — eliminates that decay for free.
Can a minimum payment fail to cover the interest?
Yes, and it happens with skinny formulas at high APRs. A 2% minimum on a card charging 26.4% APR (2.2% monthly) means the required payment is less than the month's interest — the balance grows even though you never miss a payment. Regulatory guidance pushed most US issuers toward formulas that guarantee slow amortization (like interest + 1% of principal), but promotional rate expirations and penalty APRs can still create near-flat or negative amortization. The calculator flags any input combination where the balance can't decline.
What's the fastest way out of the trap?
In order of impact: (1) Freeze your payment at today's minimum or higher — the single change this calculator quantifies. (2) Add a fixed extra amount; even $50/month collapses the timeline dramatically at high APRs. (3) Reduce the rate: a 0% balance-transfer card (typical fee 3–5%) or a lower-APR personal loan converts a 25% problem into a manageable one, provided the transfer fee is less than the interest saved. (4) Direct any windfalls at the balance. The common thread is decoupling your payment from the issuer's shrinking formula.
Does paying only the minimum hurt my credit score?
Paying the minimum on time keeps your payment history clean — the single biggest scoring factor. The damage comes through credit utilization: minimum payments barely reduce the balance, so your balance-to-limit ratio stays high for years, and utilization above roughly 30% (and especially above 50%) meaningfully suppresses scores. Paying the balance down faster improves utilization and typically lifts your score well before the debt is fully cleared.

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