What's the difference between the debt avalanche and snowball methods?

Avalanche targets the highest-interest-rate debt first, minimizing total interest paid mathematically. Snowball targets the smallest balance first, producing faster payoff wins that can help with motivation, even though it usually costs slightly more in total interest.

Which debt payoff method saves the most money?

The avalanche method (highest interest rate first) always results in equal or less total interest paid compared to the snowball method, for the same extra payment amount.

Why would someone choose the snowball method if it costs more?

The snowball method produces faster visible progress by fully paying off smaller debts sooner, which research suggests helps some people stay motivated and follow through on the full payoff plan.

Debt Payoff Calculator

Compare Snowball vs Avalanche strategies to find the fastest, cheapest way to become debt-free.

Your Debts

Name Balance ($) Interest Rate (%) Min Payment ($)

Extra Monthly Payment ($) — amount above all minimums

Payoff Schedule

Month	Debt Name	Payment	Principal	Interest	Balance

For educational purposes only — not financial advice.

How to use

Add each of your debts with the current balance, interest rate, and minimum payment.
Enter any extra amount you can pay above all minimums each month.
Click Compare Strategies to see both Snowball and Avalanche results side by side.
Snowball pays lowest balance first — great for motivation and quick wins.
Avalanche pays highest interest first — saves the most money overall.
Toggle between schedules to see the month-by-month payoff plan for each strategy.

About this Debt Payoff Calculator

When paying down multiple debts, the order in which you pay them off changes both how fast you become debt-free and how much total interest you pay — two well-known strategies approach this trade-off differently.

Debt avalanche vs. debt snowball

Avalanche method: pay minimums on all debts, then put extra money toward the highest-interest-rate debt first. This minimizes total interest paid mathematically.
Snowball method: pay minimums on all debts, then put extra money toward the smallest balance first, regardless of interest rate. This produces faster "wins" (fully paid-off accounts) early on, which research suggests helps some people stay motivated and stick with the plan.

Why the math and the motivation sometimes disagree

The avalanche method is mathematically optimal — it always results in less total interest paid than the snowball method for the same extra-payment amount. But behavioral research shows a real number of people are more likely to complete a debt payoff plan with snowball's early wins, meaning the "worse" method on paper can produce a better real-world outcome for someone who needs the motivation to stay consistent.

Minimum payments are the trap

Paying only the minimum on a high-interest debt (especially credit cards, often 20%+ APR) can result in paying several times the original balance over an extended payoff period, since minimum payments are calculated to barely cover accruing interest plus a small amount of principal.