π³ Credit Card Minimum Payment Calculator
The true cost of minimum payments, and what an extra payment saves.
Payoff Time on Minimums
Estimates for planning only, not financial advice.
How to Use This Calculator
Enter your card balance, APR, and your issuer\'s minimum-payment formula (the percent and the flat floor). The calculator simulates every month until the balance hits zero, then shows the payoff time and total interest. Add an optional extra payment to see the dramatic difference it makes.
Enter your Card Balance and APR. Find the APR on your statement; the average US card rate sits in the low 20s.
Enter the Minimum as a percent of balance (often 1 or 2 percent) and the Minimum Floor in dollars (often $25 or $30). The calculator charges whichever is greater each month.
Read the payoff time in months and years, the total interest, and the total paid. This is the number your statement is required to disclose.
Enter an Extra Payment, even $25 or $50, and watch the payoff time collapse. That gap is the price of paying only minimums.
Why Minimum Payments Take So Long
The trap is structural. A percentage-based minimum shrinks as the balance shrinks, so the payment keeps getting smaller exactly when it should stay steady. On a $5,000 balance at 18 percent, month one charges $75 of interest and the minimum is about $101.50, leaving only $26.50 of principal reduction. Months later the balance is $1,000, the interest is $15, and the minimum has fallen to the $25 floor. The floor is the only thing that eventually forces the balance to zero, and it takes 354 months to get there. A fixed extra payment breaks the cycle because it does not shrink.
Worked Example
$5,000 balance, 18 percent APR, minimum = max($25, 2% of balance). Minimums only: 354 months (29.5 years), total interest $11,688.88, total paid $16,688.88. The interest alone is more than double the original balance. Add $50 a month extra: payoff drops to 76 months (6.3 years), interest drops to $2,801.23, saving $8,887.65. Add $200 a month extra: paid off in 24 months with only $895.87 of interest. Every fixed dollar above the minimum attacks principal at the full rate, while minimum dollars mostly feed interest.
Escaping the Minimum-Payment Trap
First, stop adding new charges to the card you are paying down, or the simulation never ends. Second, switch from the shrinking minimum to a fixed monthly payment you can sustain; even matching the first month\'s minimum every month beats the declining schedule. Third, if you carry multiple balances, pay minimums everywhere and aim all extra cash at the highest APR first (the avalanche method), which minimizes total interest mathematically. Fourth, call your issuer and ask for a lower rate; a surprising number of cardholders get a yes, and every point off the APR shortens the payoff. If the balance is unmanageable, a nonprofit credit counseling agency can negotiate a debt management plan with reduced rates.
Estimates for planning only, not financial advice.
Frequently Asked Questions
How is a credit card minimum payment calculated?
Most issuers charge the greater of a flat dollar amount, often $25 or $30, and a percentage of the balance, often 1 to 2 percent, sometimes plus that month's interest and fees. This calculator uses minimum = max(flat fee, percent of balance), which matches the most common US formula. Because the payment shrinks as the balance shrinks, the payoff stretches over decades on large balances.
How long does it take to pay off $5,000 making only minimum payments?
At 18 percent APR with a 2 percent minimum and a $25 floor, a $5,000 balance takes 354 months, 29.5 years, and costs $11,688.88 in interest, for a total of $16,688.88. That is the minimum-payment trap: the payment falls as the balance falls, so the last dollars take the longest. Federal law requires your statement to show this payoff timeline, and now you can see why.
How much does an extra $50 a month save?
On that same $5,000, 18 percent balance, adding $50 a month on top of the minimum cuts the payoff from 354 months to 76 months (6.3 years) and drops total interest from $11,688.88 to $2,801.23. An extra $200 a month finishes it in 24 months with only $895.87 of interest. Small fixed extras beat minimums by an enormous margin because they attack principal directly.
Why does the minimum payment barely reduce my balance?
Early on, most of the minimum covers interest, not principal. On a $5,000 balance at 18 percent, the first month's interest is $75 and the minimum is about $101.50, so only $26.50 reduces the balance. As the balance falls, the interest falls too, but the percentage-based payment falls with it, keeping the principal reduction tiny for years. A fixed payment does not shrink, so it wins.
Should I pay more than the minimum?
Yes, whenever you can, because minimums are designed to maximize the issuer's interest income, not your payoff speed. The avalanche strategy, paying minimums on all cards and throwing every spare dollar at the highest-rate balance, minimizes total interest. Even $25 extra a month makes a visible difference; this calculator shows exactly how much.