Budgeting · Updated 2026-11-04 · 3 min read

Debt Snowball vs Avalanche: Which Is Better, With a Spreadsheet Walkthrough

"Debt snowball vs avalanche" is one of the most searched personal-finance questions, usually followed by "which is better?" and "is there a spreadsheet?". Here is a clear explanation of both, a worked example, and how to build your own payoff tracker in Excel or Google Sheets.

This is general education, not financial advice. If you are behind on payments or considering consolidation or bankruptcy, a nonprofit credit counselor (for example, one affiliated with the NFCC in the US) can review your situation.

The two methods in one paragraph each

Debt snowball: pay the minimum on every debt, then put every extra dollar toward the smallest balance. When it is paid off, roll its payment into the next smallest. The quick early wins help many people stay motivated.

Debt avalanche: pay the minimum on every debt, then put every extra dollar toward the highest interest rate. Mathematically, this usually costs less in total interest and can finish sooner.

A worked example

Say you have $300 a month extra beyond minimums and these debts:

• Snowball order: store card, then credit card, then car loan.
• Avalanche order: store card (24%), then credit card (22%), then car loan.

In this case the two orders are almost the same, because the smallest debt also has the highest rate. The difference becomes large when a big balance carries the highest rate, for example a $12,000 card at 27% next to a $900 medical bill at 0%. Then the avalanche saves more interest, while the snowball gives you a faster first win.

Which is better?

• If you have struggled to stick with a plan before, the snowball's quick wins may be worth the extra interest.
• If you are motivated by numbers and your highest-rate debt is large, the avalanche usually saves money.
• Many people use a hybrid: knock out one or two tiny balances first for momentum, then switch to avalanche order.

The best method is the one you will follow every month. Consistency matters more than the ordering.

How to build a debt payoff spreadsheet

You can build a basic tracker in about 30 minutes.

1. Debts table: columns for name, balance, APR, minimum payment, and a priority number (1 = pay first).
2. Monthly interest: for each debt, balance × APR ÷ 12.
3. Payment: minimum for every debt, plus the extra amount for priority 1. In Excel or Google Sheets, an IF on the priority column handles this.
4. New balance: old balance + interest − payment, never below zero (use MAX(0, …)).
5. Rollover: when a balance hits zero, its minimum plus extra moves to the next priority.
6. Copy the month across 60 columns (five years) and add a row that shows the payoff month for each debt.
7. Chart total balance over time. Watching it fall is motivating.

Sort the priority column by balance for snowball or by APR for avalanche, and compare the total interest row.

Make room for extra payments

The extra monthly amount is what makes either method work. If your income varies, read how to budget with irregular income first so you know what extra you can safely commit. Keep a small emergency fund while paying off debt so a surprise bill does not go back on a card.

A ready-made option

If you would rather not build the formulas, our Debt Payoff Tracker spreadsheet handles the tracking: list your debts with balance, rate and minimum, log each payment, and watch total paid, remaining balance and percent paid off update. It does not project payoff dates, so if you want the month-by-month forecast, build steps 2 to 6 above alongside it. See all our spreadsheets on the products page.