How to pay off debt: snowball vs avalanche
There are two well-known ways to attack multiple debts. Both work — the difference is whether you optimize for math (least interest) or motivation (quick wins).
The two methods
- Avalanche — pay minimums on everything, then throw all extra cash at the highest-APR debt first. Mathematically optimal: it pays the least total interest.
- Snowball — pay minimums, then attack the smallest balance first. You clear accounts quickly, which builds momentum and motivation.
Compare both for your exact debts side by side in the Debt Payoff Calculator — it shows months to debt-free and total interest for each.
Which should you choose?
If the interest difference between your debts is large (e.g. a 24% credit card vs a 5% car loan), avalanche can save real money. If you’ve struggled to stay motivated, the early wins of the snowball are often worth the small extra interest. The best method is the one you’ll actually finish.
Accelerate either way
- Find extra cash with a budget — even $100/month dramatically cuts payoff time.
- A 0% balance-transfer card can pause interest while you hammer the principal.
- Avoid adding new debt while you pay down the old — it resets the snowball.
Frequently asked questions
- Is the snowball or avalanche method better?
- Avalanche pays the least total interest because it targets the highest rate first. Snowball clears small balances fastest for motivational momentum. Avalanche wins on math; snowball wins on adherence.
- Should I pay off debt or save first?
- Build a small starter emergency fund, capture any employer retirement match, then prioritize high-interest debt (cards) before lower-interest debt and extra investing.
- Why does paying only the minimum cost so much?
- Minimum payments are mostly interest, so the principal barely moves. On high-APR cards, minimums can stretch payoff into decades and cost more in interest than the original balance.
Run your own numbers
Put this guide into practice — these calculators run free in your browser.