What the debt snowball method is
The debt snowball orders your debts from the smallest balance to the largest, ignoring interest rate. You pay the minimum on everything, then put every spare dollar on the smallest debt. When it's paid off, the money you were sending it rolls onto the next debt — so your payment grows like a snowball rolling downhill.
Why it works
It's behavioral. Clearing an entire debt is a visible, motivating win, and momentum keeps people going. Research from the Harvard Business Review found people who tackled smaller balances first were more likely to eliminate their debt overall.
Snowball vs. avalanche
The avalanche method targets the highest APR first and saves the most interest. If you want the math-optimal route, use that. If you want momentum, use snowball. Our side-by-side comparison shows the difference in dollars for your own debts.