Debt Payoff Calculator

Build a plan to become debt-free. Compare the Avalanche and Snowball methods and see exactly how much you save.

Your Debts

Highest interest rate first — saves the most money.

$

Applied on top of all minimum payments.

Enter your debts above to see your payoff plan.

Avalanche vs. Snowball: Which Should You Choose?

Both methods use the same core mechanic: make minimum payments on all debts, then direct any extra money toward one target debt. When that debt is paid off, roll its entire payment to the next target. The difference is which debt you target first.

MethodTarget FirstBest For
AvalancheHighest interest rateMinimizing total interest paid
SnowballSmallest balanceMotivation and quick wins

Research by the Harvard Business Review found that the snowball method — targeting the smallest balance first — keeps people more motivated because individual debts disappear faster, providing visible progress. Avalanche targets the highest interest rate first, which costs less overall but can feel slow when large, high-rate debts take a long time to eliminate. If you have the discipline to stick with a slower burn, use avalanche. If seeing debts drop off the list keeps you going, snowball may work better in practice.

The Power of Extra Payments

On high-interest credit card debt, the minimum payment barely covers the monthly interest — your balance barely moves. Adding even $50–100/month can cut years off your payoff timeline. Use the extra payment field above to see exactly how much each additional dollar saves you.

Tips to Find Extra Money for Debt Payoff

  • Use windfalls: Tax refunds, bonuses, and gifts applied directly to your highest-priority debt can have an outsized impact.
  • Automate the extra payment: Set up an automatic additional payment so it happens without willpower.
  • Consider balance transfers: A 0% APR balance transfer card can temporarily eliminate interest, letting your full payment reduce principal.
  • Refinance high-rate debt: A personal loan at a lower rate than your credit cards can reduce your total interest significantly.

Frequently Asked Questions

Should I invest while paying off debt?

It depends on the interest rate. If your debt rate is higher than what you'd expect to earn investing (roughly 7% for a diversified stock portfolio), paying off debt first is the better financial move. An exception: always contribute enough to get your full 401(k) employer match — that's an instant 50–100% return that beats any debt payoff math.

Does paying off debt hurt my credit score?

Generally no — paying off debt improves your credit score by reducing your credit utilization ratio (balances ÷ credit limits). Closing accounts after payoff can temporarily reduce your score, so consider keeping paid-off credit cards open with a zero balance.

What if I can only afford minimums?

Pay minimums consistently to avoid late fees and credit damage. Look for any discretionary spending to cut, even temporarily. Even an extra $25/month makes a difference over time. If you're truly unable to manage, contact a nonprofit credit counseling agency — they offer free advice and may be able to negotiate lower rates through a debt management plan.

Related Calculators