Credit Card Payoff Calculator

Last Updated:

See exactly how long it will take to pay off your credit card and how much interest you'll pay in total.

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Time to Pay Off

-- months

Total Interest Paid$0
Total Amount Paid$0

📐 Formula

Monthly Interest = Balance × (APR ÷ 12). Remaining Balance = Previous Balance + Interest − Payment

How to Use the Credit Card Payoff Calculator

1

Enter balance and APR

Input your card's current balance and annual interest rate. For multiple cards, calculate each separately to compare payoff strategies.

2

Set your monthly payment

Enter what you can realistically pay per month. Then experiment with higher amounts — even $50 extra can cut a year off the payoff timeline.

3

Try the avalanche vs snowball approaches

Avalanche: pay minimums on all cards, direct extra to highest-APR card first — minimises total interest. Snowball: tackle smallest balance first for psychological momentum.

4

Note the payoff date

Use this as your debt-free target date — a concrete milestone that makes abstract financial goals tangible and actionable.

Avalanche vs Snowball: The Numbers

The debt avalanche directs extra payments to the highest-APR balance while paying minimums on others. Once cleared, roll that payment to the next-highest APR. Mathematically optimal: a household with $18,000 across three cards at 26%, 20%, and 14% APR saves approximately $1,800–$2,400 in total interest using the avalanche versus the snowball, depending on balances and payment amounts.

The debt snowball pays the smallest balance first regardless of rate. The mathematical cost is slightly higher total interest, but the psychological benefit — eliminating a card entirely and experiencing a concrete win early — improves completion rates for many people. Research in behavioural finance suggests the snowball may produce better real-world outcomes because sustained behaviour change requires motivation, not just optimisation. Choose the method you will actually follow through on.

Balance Transfer Timing: When the Math Works

A 0% promotional balance transfer can eliminate 12–21 months of interest on transferred balances. Transferring $8,000 from a 24% APR card to a 0% card for 15 months saves approximately $2,400 in interest. The cost: a 3–5% transfer fee ($240–$400) and a credit inquiry. The transfer makes financial sense when the interest saved exceeds the fee and you have a concrete plan to clear the balance before the promotional period ends — when rates typically jump to 20%+.

How to Compare Avalanche vs Snowball by Hand: Worked Example

Suppose you owe on two cards — $6,000 at 26.99% APR and $3,000 at 17.99% APR — and can commit $400 per month in total, paying minimums (2% of balance or $25) on whichever card is not the current target.

Avalanche attacks the 26.99% card first because it charges the most per borrowed dollar. Simulating the payoff month by month: debt-free in 31 months with about $2,861 of total interest.

Snowball attacks the $3,000 card first for the quick win. Same $400 budget: debt-free in 32 months with about $3,418 of interest.

The avalanche saves roughly $556 and one month here. The gap grows when the rate spread between cards is wider and shrinks when rates are similar — which is why the honest answer to "which method is best" is: avalanche is mathematically optimal, snowball is behaviorally easier, and the method you will actually sustain for 31 months is the right one. What matters far more than the ordering is the $400 staying fixed as balances fall, instead of shrinking with the minimums.

How Do You Find Extra Payment Money Without a Raise?

What does one extra $100 per month do to the payoff date?

Re-running the example at $500 per month instead of $400 clears both cards roughly seven months sooner and cuts several hundred dollars of interest. On high-APR debt, every extra dollar of payment earns a guaranteed, tax-free return equal to the card's interest rate — at 26.99%, no ordinary investment reliably competes with that.

Should you pause investing to pay off cards faster?

The standard sequencing: capture any employer 401k match first (an instant 50–100% return beats any APR), then direct everything above the match toward cards charging more than ~8–10%, then resume full investing once the cards are gone. Pausing the match to pay a 18% card is trading a 50% return for an 18% one — the only investing step worth pausing is the unmatched portion.

What keeps the balance from coming back?

The payoff plan needs a companion: a small emergency fund (even $1,000) so the next car repair lands on cash instead of the freshly cleared card. Households that pair the two are far more likely to still be at zero a year later.

Frequently Asked Questions

Credit card interest uses the daily periodic rate (APR ÷ 365). Each day, interest accrues on your outstanding balance. That's why paying more than the minimum saves significant money.
On a $5,000 balance at 22.9% APR with a $100 minimum payment, it would take over 8 years to pay off and cost more than $4,000 in interest alone.
For credit cards, APRs below 15% are considered good. Most rewards cards range from 18–28%. A 0% introductory APR period is ideal for paying down existing balances.
Avalanche method (pay highest APR first) saves the most money in interest — mathematically optimal. Snowball method (pay smallest balance first) provides faster psychological wins and often leads to higher completion rates. If motivation is a concern, snowball wins. If you're disciplined, avalanche saves more money.
At 22% APR paying only the minimum (typically 2% of balance): over 30 years and $14,000+ in interest. Paying $300/month: paid off in about 4 years with $4,500 in interest. Paying $500/month: paid off in about 2.5 years with $2,700 in interest. Extra payments have an outsized impact at high APRs.

Sources & Methodology

Calculations are based on the most current publicly available data from authoritative government and industry sources:

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