How the debt snowball method works, step by step
The debt snowball method pays off your debts in order of balance, smallest first. You keep paying the minimum on every debt, put all the extra money you can on the smallest one, and when it is paid off, you add the payment you were making on it to the next smallest. Each payoff makes the payment on the next debt larger, which is why it is called a snowball.
This guide walks through the steps, then follows a hypothetical set of debts month by month to show how the payment grows. To see how it compares with paying the highest rate first, read which method saves more interest.
The steps
- List every debt. Write down each balance, its APR, and its minimum payment. Our guide on listing your debts covers what to include.
- Sort by balance. Put the smallest balance at the top and the largest at the bottom. The interest rate does not decide the order, though it can break a tie.
- Set one monthly budget for debt. It has to cover every minimum payment. Anything above the minimums is your extra money.
- Pay the minimums, then the target. Each month, pay the minimum on every debt and send all the extra money to the smallest balance.
- Roll the payment forward. When the smallest debt is paid off, keep the monthly budget the same. The money that went to it now goes to the next smallest, on top of that debt’s own minimum.
- Repeat until the last debt is gone. By the end, the whole budget is going to one debt.
Why keeping the budget the same matters
The snowball only grows if the total you pay each month stays the same after a debt is paid off. If the freed-up minimum is spent elsewhere, the next debt gets nothing extra and the plan slows down. That is the main difference between the snowball and paying only the minimums: the minimums-only approach lets each paid-off payment disappear, while the snowball keeps it working.
The same rule applies to the avalanche. Both methods roll freed-up payments forward; they just pick a different target.
Worked example: a snowball, stage by stage
The examples use a hypothetical household with four debts totaling $21,000, minimum payments of $630 a month, and a budget of $900 a month for debt, which leaves $270 a month above the minimums. These are made-up numbers, not typical rates or balances.
| Debt | Balance | APR | Minimum payment |
|---|---|---|---|
| Store card | $1,200 | 19.9% | $35 |
| Credit card | $6,500 | 24.9% | $195 |
| Personal loan | $3,500 | 11% | $110 |
| Car loan | $9,800 | 7% | $290 |
Sorted smallest first, the order is store card, personal loan, credit card, car loan. Here is how much goes to the target debt in each stage, using the same math as our calculator:
| Stage | Target debt | Paid to the target each month | Paid off in |
|---|---|---|---|
| First | Store card | $305 | month 5 |
| Second | Personal loan | $415 | month 13 |
| Third | Credit card | $610 | month 23 |
| Last | Car loan | $900 | month 28 |
In the first stage, the other three minimums take $595, so $305 of the $900 goes to the store card. Once it is gone, its $35 minimum joins the payment on the personal loan, which then gets $415 a month. After that, the credit card gets $610, and finally the car loan gets the full $900. All four debts are paid off in 28 months, with $3,564.79 in total interest.
What happens inside each month
Each month, interest is added to every balance, and then the payments are made. In the first month of the example, interest across the four debts comes to $244.03, so the total owed after the first payments is $20,344.03. Early on, a large share of each payment covers interest. As balances fall, more of the same budget goes to principal, and the drop in total debt speeds up.
When a payment clears a debt partway through, our calculator sends any money left over in that month straight to the next target, so none of the budget is wasted.
What the snowball costs and what it gives
Because the snowball ignores interest rates when it sets the order, it can leave a high-rate balance waiting while smaller, cheaper debts are paid. In the example, that costs $475.95 more in interest than the avalanche, and finishing takes 1 month longer. In return, the first debt disappears in month 5, while the avalanche clears its first debt in month 17. Whether that trade is worth it is a personal choice, and our guide on when the snowball beats the avalanche explores it.
Compared with paying only the minimums, the snowball saves $3,500.14 and 30 months in the example. Paying only the minimums takes 58 months and costs $7,064.93 in interest.
Common questions
Do I still pay the minimum on the other debts?
Yes. The snowball pays the minimum on every debt every month. Only the extra money goes to the smallest balance.
What if two debts have the same balance?
Our calculator puts the one with the higher APR first, then follows the order you listed them. That tie-break also happens to cost less interest.
The takeaway
The debt snowball pays every minimum, sends all extra money to the smallest balance, and rolls each freed-up payment into the next debt. It works only if the total monthly budget stays the same. It may cost more interest than the avalanche, but it clears individual debts sooner.
This guide is educational only and is not financial, tax, or legal advice. The example uses hypothetical numbers; your lender or card issuer sets your actual terms. See how our calculators work.
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