Debt snowball vs avalanche: which pays off debt faster?
The debt snowball pays minimums on everything and throws every spare dollar at the smallest balance, then rolls that payment into the next debt. The debt avalanche does the same but targets the highest interest rate first. Avalanche costs less in interest; snowball delivers earlier wins. Both beat paying minimums.
How each method works
- Pay the minimum on every debt so nothing falls behind.
- Choose a monthly attack amount above the minimums.
- Send the attack amount to one target: the smallest balance (snowball) or the highest rate (avalanche).
- When a debt clears, its minimum joins the attack amount and moves to the next target.
A worked comparison
| Debt | Balance | APR | Minimum |
|---|---|---|---|
| Credit card | $2,400 | 24.9% | $70 |
| Car loan | $8,400 | 6.9% | $310 |
| Personal loan | $4,000 | 11.5% | $120 |
With $900 a month available, snowball targets the credit card first because it is the smallest balance, and avalanche also targets it because it has the highest rate. The methods diverge afterwards: snowball moves to the $4,000 loan, avalanche to the same loan because 11.5 percent beats 6.9 percent. Here they agree; often they do not, and avalanche saves interest while snowball clears a debt sooner.
Which should you choose?
- Choose avalanche if the interest gap between your debts is large and you will stick with a plan that takes longer to show a first win.
- Choose snowball if you have several small balances and momentum matters to you. Finishing a debt in month two keeps many people going.
- Either way, the attack amount matters more than the order. Raising it by $100 usually saves more than switching methods.
Two warnings
If the attack amount is smaller than the total minimums, no method works; the plan is short before it starts. And if a high-rate balance grows faster than you pay it, interest is outrunning you, which is a signal to negotiate the rate or consolidate before optimising order.
How Worth Clarity does it
The payoff planner takes your real balances, rates, and minimums, simulates both strategies month by month with interest accrual, and shows the debt-free date, total interest, payoff order, and a chart of the way down for each. It flags a budget that misses the minimums or one that interest outruns. Every debt also has a full amortization schedule.
Common questions
- Does the avalanche method always save money?
- Mathematically it never costs more than snowball, and it usually costs less. The saving is small when rates are similar and large when one debt carries a much higher rate.
- Should I stop saving while paying off debt?
- Keep a small emergency cushion so a surprise does not go back on a card, then direct the rest at the debt. Once high-rate debt is gone, the balance shifts toward saving and investing.
- What counts as a minimum payment for a card?
- The amount the statement requires to stay in good standing. Paying only that on a high-rate card is the slowest possible path, which is why the attack amount exists.
