Avalanche vs Snowball: Pick a Debt Payoff Plan You Can Finish
Compare avalanche, snowball, and minimum-only payoff plans across multiple debts, then download a month-by-month CSV estimate.
When you carry more than one balance, the order you attack them changes total interest and how long you stay in debt. Avalanche targets the highest APR first. Snowball targets the smallest balance first for a quicker win. The Consumer Financial Protection Bureau calls these the two basic payoff plans (see CFPB: how to reduce your debt).
The Haivix Debt Payoff Calculator lets you add multiple debts (name, balance, APR, minimum), set extra monthly cash, and compare avalanche, snowball, and minimum-only side by side. You get debt-free date, months, total interest, and a CSV of the month-by-month plan. Math runs locally; it is an estimate, not a lender statement.
Key takeaways
- Avalanche saves the most interest. It retires the highest APR first, as the CFPB explains.
- Snowball clears the smallest balance first. Some people find that easier to keep going.
- The right plan is the one you will finish. Both beat paying only the minimum.
- Extra cash shortens the time. Pick an amount you can keep up.
- The calculator is an estimate. It models monthly interest and ignores promo rates, fees, and lender rounding.
Avalanche, snowball, and custom
Avalanche is a payoff order that sends every extra dollar to the highest-APR balance after minimums; for example, a high-rate store card is attacked before a low-rate auto loan. Snowball is the opposite order: it clears the smallest balance first for a quick win. Custom follows the order you listed. The comparison always includes all three paths. Custom appears in the results when you select it.
Results show the best order, the interest versus the cheapest path, and a plan preview (the first 18 months in the UI). Download CSV for the full schedule. Start date and currency format the display; currency does not convert FX rates. The CFPB's reducing-debt worksheet is a printable way to list the same balances on paper.
Avalanche vs snowball vs minimum-only
| Strategy | Payment order | Main trade-off |
|---|---|---|
| Avalanche | Highest interest rate first. | Lowest total interest, but the first win can be slow. |
| Snowball | Smallest balance first. | Quick wins that keep motivation up, sometimes at a higher interest cost. |
| Minimum-only | No extra payment. | Slowest and most expensive, useful only as a baseline. |
What the model assumes
Interest is modeled as monthly APR ÷ 12. A minimum payment is the smallest amount the lender requires each month. On a high-APR card, that minimum often only covers the month's interest. Promo rates, fees, due-date quirks, and lender rounding are not included. The run caps around 600 months and errors if payments never reduce balances.
For a single revolving card payoff target, try the Credit Card Payoff Calculator. For fixed loan payments, use the Loan Calculator. If a balance has already gone to collections, the CFPB debt collection resources explain your rights before you negotiate.
Checklist before you change autopay
Open the Debt Payoff Calculator, load the example or enter your debts, set extra cash, and compare strategies. Inputs can live in a shareable URL; nothing is stored on Haivix servers.
- Every balance, APR, and minimum matches the latest statement.
- Extra monthly amount is money you can sustain.
- You compared avalanche vs snowball interest totals.
- You downloaded the CSV if you need a written plan.
- Fees and promo APRs were adjusted outside the model if they apply.
About this guide
This guide is maintained by the Haivix editorial team. You can read more about us and how Haivix tests its tools on our about page, and send corrections through our contact page.