How Long Will It Take to Pay Off My Credit Card?
Credit card interest is calculated on the balance you carry each month. At 20%+ APR, paying only the minimum can stretch a balance over many years and double what you pay in total. Knowing your payoff time is the first step to shrinking it.
How card interest works (simple version)
Your APR divided by 12 is roughly your monthly interest rate. At 22.99% APR, that is about 1.92% per month. On a $5,200 balance, the first month’s interest is close to $100. If you pay $220, only $120 reduces the balance.
Calculate your payoff time in Excel
Excel has a function for this: NPER returns the number of periods to pay off a loan.
=NPER(APR/12, -payment, balance)
With a $5,200 balance, 22.99% APR and $220 a month, NPER returns about 32 months. Multiply by the payment and subtract the balance to get the total interest — roughly $1,800.
If the payment is lower than the monthly interest, NPER returns an error: the balance would never go down.
Calculate the payment for a goal
Want to be done in 18 months? Use PMT:
=PMT(APR/12, 18, -balance)
For the same card, that’s about $330 a month — and the interest drops to around $750.
How much extra payments save
The effect of paying more is not linear. On the example card:
| Monthly payment | Time | Approx. interest |
|---|---|---|
| $220 | 32 months | $1,800 |
| $270 | 24 months | $1,300 |
| $320 | 19 months | $1,000 |
| $420 | 14 months | $700 |
Every extra dollar goes straight to the balance, so it also reduces next month’s interest.
Ways to pay it off faster
- Stop using the card while you pay it off.
- Ask for a lower APR. A phone call can cut several points.
- Consider a 0% balance transfer, but only if you can clear it before the promo ends and the fee (often 3–5%) is worth it.
- Use windfalls (tax refund, bonus) for lump-sum payments.
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The Credit Card Payoff Calculator does all these calculations: months and interest at your payment, the payment needed for your goal, a comparison of five payment levels and a 120-month schedule with a balance chart. If you have several debts, use the Debt Snowball Calculator.
