The snowball method pays the smallest balance first for motivation. The avalanche method pays the highest interest rate first to minimize interest. In the example below, avalanche saves about $439 in interest, while snowball clears the first debt sooner.
The example
Three credit cards, minimum payments of $450 combined, and a total monthly debt budget of $700 (so $250 extra). When a card is paid off, its payment rolls into the next.
| Debt | Balance | APR | Minimum |
|---|---|---|---|
| Card A | $2,500 | 14.99% | $75 |
| Card B | $6,000 | 24.99% | $150 |
| Card C | $9,000 | 19.99% | $225 |
Results
| Strategy | Time to debt-free | Total interest |
|---|---|---|
| Debt snowball (smallest balance first) | 34 months | $5,833 |
| Debt avalanche (highest rate first) | 33 months | $5,394 |
Snowball payoff order and timing: Card A: month 9, Card B: month 23, Card C: month 34. Avalanche: Card B: month 19, Card C: month 32, Card A: month 33.
Which should you choose?
Avalanche is cheaper whenever rates differ materially. Snowball can be the better habit if early wins keep you paying. The gap depends on how far apart the rates and balances are, so test your own debts in the Snowball vs. Avalanche Calculator.
- Always pay at least every minimum to avoid fees and credit damage.
- Consider a balance transfer only after counting the transfer fee and post-promo APR.
- Do not add new balances while paying down old ones.
How the simulation works
Each month, interest is added to every balance at the card's APR divided by 12. Every card then receives its minimum payment, and all remaining budget goes to the target card. When a card is paid off, its minimum rolls into the next target. This assumes a fixed budget, no new charges and constant rates, which is the standard simplification for comparing the two methods.
What the numbers mean in practice
The interest gap is meaningful but not enormous because the three balances and rates are fairly close. When one high-rate card holds a large balance, avalanche can save much more. When balances differ a lot and rates are similar, snowball costs little extra and delivers faster wins. Your own mix determines which approach fits.
Other ways to speed up payoff
- Direct windfalls such as tax refunds to the target debt.
- Call issuers to ask about lower rates or hardship programs.
- Check whether a balance transfer saves money after fees using the Balance Transfer Savings Calculator.
- Learn how minimum payments work in the APR and minimum payment guide.
Common questions
What is the difference between snowball and avalanche?
Snowball targets the smallest balance first; avalanche targets the highest interest rate first.
Which method saves more money?
Avalanche, when rates differ. In this example it saves about $439.
Is snowball ever the better choice?
Yes, if quick wins help you stay consistent. A plan you finish beats a cheaper plan you abandon.