If the minimum payment calculator showed you a number that shocked you — a decade in debt, thousands in interest — this page shows you exactly how to change it. Five strategies, real numbers, no vague advice.
| Strategy | Monthly Payment | Months to Pay Off | Total Interest | Interest Saved |
|---|---|---|---|---|
| Minimum Only (2%) | ~$100 (shrinks) | 9 yr 7 mo | $6,520 | — |
| Fixed Payment Lock | $100 (fixed) | 7 yr 11 mo | $4,670 | $1,850 |
| +$50 Extra / Month | $150 (fixed) | 4 yr 2 mo | $2,789 | $3,731 |
| +$100 Extra / Month | $200 (fixed) | 3 yr 0 mo | $1,781 | $4,739 |
| 0% Balance Transfer | $289 (to clear) | 1 yr 6 mo | $150 | $6,370 |
The easiest strategy: find your current minimum payment and pay that same amount every month — fixed. Never let it shrink. This single change can shave years off your repayment.
Pay your minimum plus $50 every month. No complex budgeting — just one small, fixed addition. The math is disproportionately powerful because in the early months, that extra $50 goes entirely to principal, which reduces future interest charges.
0% intro APR cards give you 12–21 months with no interest. Every dollar you pay goes directly to principal. There is a transfer fee (typically 3–5%) but on a $5,000 balance at 22% APR, that fee pays for itself within the first month.
If you have multiple cards, pay minimums on all cards except the one with the highest APR. Put all available extra cash on the highest-APR card. Once paid off, roll its full payment to the next highest APR card. This is the mathematically optimal strategy for minimising total interest. See our full avalanche vs. snowball comparison for worked examples.
Set up an automatic payment for more than the minimum. Most issuers allow a custom fixed amount. Log in, set “Autopay: Fixed Amount” at the number you want. Remove the temptation and the decision — every month the right amount goes out automatically, regardless of whether you feel like it that day.
Enter your balance and APR to see what monthly payment clears your debt in your target timeframe.