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Avalanche vs Snowball: Which Debt Payoff Method Actually Works?

The math says avalanche. The psychology says snowball. Here's an honest comparison and which one we'd pick.

Two strategies, one goal

Both methods work. Both require discipline. The difference is in what keeps you going.

The Avalanche Method

How it works: Pay minimums on all debts. Put every extra dollar toward the debt with the highest interest rate. When that's paid off, move to the next highest.

Why it works: You pay the least total interest. Mathematically optimal.

The downside: If your highest-rate debt is also your biggest balance, it might take months before you see a debt disappear from your list. That can be demoralizing.

The Snowball Method

How it works: Pay minimums on all debts. Put every extra dollar toward the smallest balance. When that's paid off, roll its payment into the next smallest.

Why it works: Quick wins. You see debts disappearing from your list fast. That momentum is real and measurable — research from Harvard Business Review shows people are more likely to stick with the snowball method.

The downside: You'll pay more in total interest than the avalanche method.

How much more does snowball actually cost?

Here's the truth: for most people, the difference is smaller than you think. If your debts are relatively similar in interest rate (within a few percentage points), the total interest difference might be a few hundred dollars. If you have one debt at 29% APR and others at 7%, the avalanche advantage is significant.

Use our Debt Payoff Calculator to see the exact difference with your own numbers.

Our honest recommendation

Start with snowball unless:

The best debt payoff method is the one you'll actually stick with. A mathematically perfect plan you quit after 3 months loses to an imperfect plan you complete.

See both methods with your actual numbers

Enter your debts once, get avalanche and snowball side-by-side.

Open the Calculator →
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