Why the minimum is set the way it is
A credit card minimum is typically calculated as the greater of $25–$40, or about 1% of your balance plus that month's interest and fees. The 1% part is the key: it is just barely more than the interest, which means the balance shrinks very slowly. On a $6,500 balance at 22.99%, your first minimum payment is around $153 — of which $125 is interest. Only $28 actually reduces what you owe.
Month two through month 240
Next month, the balance is $6,472. The interest is slightly lower. The minimum is also slightly lower — because it's computed as a percentage of the balance. This is the trap: as the balance shrinks, so does the minimum, so the payoff horizon stretches out for decades. Most cards will hold a balance for 20+ years if you pay nothing more than the legally required minimum, and the total interest often exceeds the original balance.
The CARD Act disclosure you've been ignoring
Since the 2009 CARD Act, your monthly statement is required to show two numbers: how long it would take to pay off the balance making only the minimum, and what a 36-month payoff payment would be. The gap is always enormous. The calculator above reproduces this comparison and adds the "double the minimum" option — a middle-ground that still cuts years off the payoff horizon.
Why doubling the minimum works so well
Doubling the minimum usually cuts the payoff time by more than half and total interest by 60–75%. The effect compounds: each extra dollar applied to principal reduces the balance that generates interest next month, which frees up more of next month's payment for principal, and so on. This is compounding working in your favor for once.
The minimum payment death spiral
The real trap shows up when someone missing a paycheck drops back to the minimum, intending to "catch up next month." But the balance has grown from missed principal payments, the APR may have jumped to a penalty rate, and the next month's minimum is higher. Many people end up in a multi-year spiral of perpetually-rising minimums with no real debt reduction. Breaking out requires a strategy: snowball or avalanche, or, if the APR is above 20%, a balance transfer.
The $50 rule
If nothing else sticks: pay your minimum plus $50 a month, on every card, every month. That single $50 typically cuts a 20-year payoff to 5–7 years on an average credit card balance. It is the highest-return $50 most American households can deploy.
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For education only. Not financial advice.