Credit Card Payoff Calculator 💳

Why Minimum Payments Are a Debt Trap

A $5,000 balance at 24.99% APR with only minimum payments (2% of balance) takes over 20 years to pay off and costs more than $8,000 in interest alone. Doubling your payment cuts that to just 3 years and saves $6,000+.

Debt Avalanche vs Debt Snowball

• Avalanche Method: Pay minimums on all cards, put extra money toward the highest APR card first. Mathematically optimal — saves the most interest.
• Snowball Method: Pay minimums on all cards, put extra toward the smallest balance first. Psychologically motivating — quick wins keep you going.
• Research shows both work — the best method is the one you'll stick to.

Quick Ways to Pay Off Credit Card Debt Faster

• Make bi-weekly payments instead of monthly — effectively one extra payment per year
• Transfer to a 0% APR balance transfer card (typically 15–21 months)
• Round up payments — pay $200 instead of $157
• Apply tax refunds and bonuses directly to the balance
• Stop using the card while paying it off

Average US Credit Card APR (2024)

The average credit card interest rate in the US reached a record ~21–22% APR in 2024. Store cards often charge 25–30%. Always check your statement for your exact APR.

How Credit Card Interest Is Actually Calculated

Credit cards rarely apply your APR once a year. Instead they convert it to a daily periodic rate (APR ÷ 365) and charge interest on your average daily balance, compounded each day. A 24% APR becomes a daily rate of about 0.0658%. On a $5,000 balance that is roughly $3.29 of interest per day, or about $99 in a 30-day month — and because it compounds daily, carrying a balance is far more expensive than the headline APR suggests. This is also why paying even a few days earlier reduces the interest you owe.

The Grace Period — How to Pay Zero Interest

If you pay your statement balance in full by the due date every month, most cards charge no interest at all thanks to the grace period on purchases. Interest only begins when you carry a balance from one month to the next. Once you do, many cards suspend the grace period until you have paid in full again — meaning new purchases start accruing interest immediately. The single most powerful debt strategy is to pay the full statement balance and never let the grace period lapse.

Balance Transfers: Read the Fine Print

A 0% APR balance-transfer card can pause interest for 15–21 months, letting every dollar attack the principal. Watch for the transfer fee (typically 3–5% of the amount moved) and the go-to APR after the promo ends. To benefit, aim to clear the balance before the promotional period expires, and avoid new purchases on the card, which may not enjoy the same 0% rate.

How Paying Off Debt Affects Your Credit Score

Your credit utilisation ratio — how much of your available credit you are using — is one of the largest factors in your score. Keeping utilisation below 30%, and ideally below 10%, can raise your score noticeably. Paying down balances lowers utilisation, while keeping old cards open (even at a zero balance) preserves your available credit and the length of your credit history, both of which help your score.