How this minimum repayment calculator works
This calculator estimates how long it may take to clear a credit card when you make only the minimum payment, or the minimum plus an extra amount. It models the typical card rule: your minimum payment is the greater of a percentage of balance or a fixed dollar floor.
Because credit card interest is charged monthly, your payment first covers interest, and only the remainder reduces principal. That is why debt can shrink very slowly if you rely only on minimum payments.
What you can learn from the results
- Estimated months and years to repay your balance
- Total amount paid over the full payoff period
- Total interest cost
- How much time and interest you could save by paying extra each month
Why minimum payments are so expensive
1) Interest compounds month after month
APR is quoted annually, but card issuers apply a monthly rate. If your APR is high, a significant share of each payment can go to interest rather than principal.
2) Minimums usually fall as the balance falls
When the minimum is tied to a percentage of your balance, your required payment decreases over time. That might feel easier in the short term, but it stretches repayment dramatically.
3) Small extra payments have outsized impact
Even adding $25 or $50 above minimum can cut years off repayment for many balances. Extra payments directly reduce principal, lowering future interest charges.
Example strategy to pay off faster
If your budget is tight, start with a manageable extra amount and automate it:
- Set a fixed monthly auto-payment above the minimum.
- Send windfalls (tax refunds, bonuses, gift money) to principal.
- Avoid adding new purchases while paying down debt.
- Re-check your payoff timeline every few months with updated balances.
Important assumptions and limitations
This tool gives an estimate, not a lender statement. Real card balances can vary because of daily compounding, fees, statement timing, variable APR changes, and new transactions. For best planning, use conservative inputs and round your payment up.
If the computed minimum payment is not enough to cover monthly interest, repayment may not be feasible under those settings. In that case, increase your payment amount, lower the APR (for example with balance transfer offers), or seek debt counseling for a structured payoff plan.
Bottom line
Minimum payments protect your account from delinquency, but they are rarely the fastest or cheapest way out of debt. Use this calculator to test scenarios and choose a payment level that shortens payoff time while still fitting your budget.