Debt Avalanche vs Snowball: Which Payoff Method Saves More?
Once minimums are covered, any extra money can attack debts in two orders. The avalanche pays the highest interest rate first. The snowball pays the smallest balance first. One is better arithmetic; the other is better psychology. The difference in cost is usually smaller than people expect — and far smaller than the cost of quitting.
A worked comparison
Three debts: a $900 card at 26%, a $4,000 card at 21%, and a $9,500 loan at 9%, with $650 a month total to pay them. Snowball clears the $900 card in about two months — a quick win — then rolls its payment into the next. Avalanche starts on the same $900 card here (it is also the most expensive), then takes the 21% card before the 9% loan. In this example avalanche saves a few hundred dollars and about a month. When the smallest debt is also the cheapest, the gap widens; when rates are close, it nearly vanishes.
The real variable is adherence. A plan followed for 18 months beats a theoretically better plan abandoned in month four. If quick wins keep you going, the snowball's modest extra interest is a fair price for finishing. If you are motivated by the numbers themselves, avalanche is strictly better. Either way, the plan fails without a small emergency buffer — one surprise expense on a cleared card restarts the cycle.
- Always pay every minimum first; missed payments cost more than any ordering saves.
- Automate the extra payment for payday so the plan does not depend on willpower.
- Stop adding to the cards while paying them off — new charges refill the hole.
Questions, answered
Can I mix both methods?
Yes. A common hybrid: clear one small debt for momentum, then switch to avalanche for the rest. The maths cost is small and the motivation is real.
Does the order affect my credit score?
Barely. Scores respond to balances falling and payments being on time, not to the order you chose.
Reviewed by Tahir Shehzad, ACMA. Figures are reviewed against the sources on our methodology page. This guide is education, not personal financial advice.