Credit Card Payoff
Calculate how long it takes to pay off your credit card and see how much you can save by paying more.
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How Credit Card Interest Works
Credit cards use compound interest calculated daily. Your APR is divided by 365 to get the daily rate, then applied to your balance each day. This means interest accumulates faster than simple loans.
Monthly Interest ≈ Balance × (APR ÷ 12)
For example, a $5,000 balance at 22.99% APR accrues about $96 in interest per month. If you only pay $100, just $4 goes toward your actual debt.
The Minimum Payment Trap
Credit card minimum payments are designed to keep you in debt longer. Typically set at 1-3% of your balance or $25-35 (whichever is greater), minimum payments can take 15-30 years to pay off a balance.
On a $5,000 balance at 22.99% APR, paying only the minimum ($100) means you’ll pay $7,723 total over 9+ years — that’s $2,723 in interest alone!
Strategies to Pay Off Faster
- Pay more than minimum: Even $50 extra per month can cut years off your payoff time and save hundreds in interest.
- Avalanche method: Pay minimums on all cards, put extra money toward the highest APR card first. Mathematically optimal.
- Snowball method: Pay off smallest balance first for psychological wins. Great for motivation.
- Balance transfer: Move debt to a 0% APR intro card. Watch for transfer fees (typically 3-5%).
Watch Out For
- Promotional rate expiration: 0% APR offers typically last 12-21 months. Know when yours ends — rates can jump to 20%+.
- Cash advance APR: Often 25-30% with no grace period. Interest starts immediately.
- Penalty APR: One late payment can trigger rates up to 29.99% on your entire balance.
- New purchases: While paying off debt, new charges may not get a grace period, accruing interest immediately.
Frequently Asked Questions
How is credit card interest calculated each month?
Credit card issuers typically divide your APR by 12 to get the monthly periodic rate and apply it to your average daily balance. In this calculator, monthly interest = remaining balance × (APR / 12). Each payment first covers accrued interest; the remainder reduces principal.
What happens if my monthly payment only covers the minimum?
If your monthly payment is less than or equal to the monthly interest charge, the balance will never decrease — it grows indefinitely. The calculator shows a warning in this scenario. Most credit card minimum payments are set to roughly 1–2% of the balance, which can stretch payoff to decades.
How much does paying an extra $50 per month really save?
On a $5,000 balance at 22.99% APR with $150/month payments, payoff takes about 51 months and costs roughly $2,600 in interest. Raising the payment to $200/month cuts payoff to 33 months and interest to about $1,500 — saving $1,100 and 18 months. Enter both amounts in the calculator to see the exact figures for your balance.
Does the calculator model the debt avalanche or snowball method?
This calculator models a single credit card with a fixed monthly payment — it does not simulate multi-card payoff strategies. For debt avalanche (highest-rate first) or snowball (smallest-balance first) planning across multiple cards, you would run each card separately and reallocate freed-up payments manually.
Does the calculator account for new purchases added to the balance?
No — the calculator assumes a fixed starting balance with no new charges. If you continue using the card while paying it down, your actual payoff date will be longer than shown. To use the calculator accurately, either stop new charges or add expected monthly spending to your balance before calculating.