Works backward from a 0% promotional period to find the flat monthly payment needed to fully clear the balance before the standard APR applies.
How it works
Balance divided by the number of months in the 0% intro period gives the required monthly payment to reach zero exactly by the end of the promotional window.
What this does not include
This assumes no new charges are added to the card during the payoff period — additional purchases would extend the time needed or require an even larger monthly payment to still clear everything before the promo ends.
How to use this calculator
- Enter the balance to pay off and the 0% intro period length.
A worked example
A $6,000 balance to pay off within a 15-month 0% intro APR window: required monthly payment = 6,000 ÷ 15 = $400.
What the variables mean
| Variable | Meaning |
|---|---|
| Balance | Amount to pay off before the intro period ends |
| Intro months | Length of the 0% promotional APR period |
Edge cases worth knowing
Missing this payoff deadline usually triggers a much higher standard APR on the remaining balance — often applied retroactively in some card terms — which is exactly why hitting the required monthly payment matters more than it might seem during the 0% period.
Zero intro months makes the calculation meaningless, so the calculator declines to show a result for that input.
Frequently asked questions
What happens if the balance isn’t fully paid by the deadline?
The standard (often high) APR applies going forward to any remaining balance — unlike a deferred interest promotion, a true 0% APR offer generally doesn’t charge interest retroactively on the whole original amount.
Is 0% APR the same as a deferred interest promotion?
No — this site’s separate deferred-interest-credit-card calculator covers that riskier structure, where unpaid balances trigger retroactive interest back to the purchase date, unlike standard 0% APR offers.
Should I pay more than the calculated minimum?
Paying more provides a buffer against missing the deadline due to a late or missed payment — the calculated figure is the exact minimum needed with no room for error.
