How to Pay Off Credit Card Debt Faster: A Numbers-First Guide

Credit card debt is expensive because the interest rate is high and the minimum payment is set low. This guide uses concrete numbers to show how much the size of your monthly payment matters, how to choose which card to pay first, and when a balance transfer helps.

How the interest works

Cards charge interest on your balance every month, at roughly the APR divided by 12. A $5,000 balance at 18 percent APR is charged 1.5 percent a month, which is $75 in the first month. If your payment is only $75, the balance never falls. Anything above the interest reduces what you owe, and the next month's interest is then a little smaller.

What different payments cost

For the $5,000 balance at 18 percent APR with no new purchases:

• $75 a month: never paid off, because the payment only covers the interest
• $100 a month: 94 months and $4,311.18 in interest
• $200 a month: 32 months and $1,313.96 in interest
• $300 a month: 20 months and $797.17 in interest

Doubling the payment from $100 to $200 cuts the time by about 60 months and the interest by almost $3,000. The last row shows the opposite: paying $100 more than $200 saves another $517 and 12 months. The first big jump above the minimum is where the value is.

Working backwards from a date

If you want to be debt-free in a set time, the payment can be calculated. For the same $5,000 at 18 percent, 36 months needs $180.76 a month, 24 months needs $249.62, and 12 months needs $458.40. Choose the shortest period you can keep up without borrowing again, and put the payment on autopay.

Avalanche or snowball?

With more than one card, the order matters.

• Avalanche: Pay the minimum on every card, and put all extra money on the card with the highest APR. This minimizes total interest.
• Snowball: Put the extra on the smallest balance first. You clear accounts sooner, which helps some people stay motivated, at a slightly higher total cost.

Either is far better than splitting extra money evenly. If you are not sure which suits you, pick the one you will actually stick to.

Balance transfers and consolidation loans

A 0 percent transfer card gives you a period with no interest, so every dollar goes to the balance. It helps if you can clear the balance before the offer ends and if the transfer fee (commonly 3 to 5 percent) is smaller than the interest you would otherwise pay. On a $5,000 balance a 3 percent fee is $150, which is well below a year of 18 percent interest. A personal loan with a lower fixed rate works similarly and gives a set end date.

Habits that help

1. Stop adding new purchases to the card while you pay it down, or pay new charges in full each month.
2. Build a small emergency fund (even $500 to $1,000) so a surprise bill does not go back on the card.
3. Ask your issuer for a lower APR. Some will reduce it, especially if you pay on time.
4. Send windfalls such as tax refunds and bonuses to the balance.
5. Check each statement to confirm the balance falls by what you expect.

What to do about minimum payments

Minimum payments are typically a small percentage of the balance plus interest. They fall as the balance falls, which stretches the payoff for years. Treat the minimum as the least you must pay to stay in good standing, not as a plan.

Use the calculator

The Credit Card Payoff Calculator works in two modes: enter a monthly payment to see the payoff time and total interest, or enter a target number of months to see the payment you need. It warns you if a payment does not cover the monthly interest and shows a full schedule. The Loan Calculator can model a consolidation loan, the EMI Calculator helps compare offers quoted as EMIs, and the Savings Goal Calculator helps you build the emergency fund. To understand why interest snowballs, read how compound interest works.