Snowball vs avalanche — the real numbers
Both methods use the same extra payment amount — the only difference is which debt gets it first. For a full worked example with exact interest savings, see the Debt Snowball vs Avalanche guide. Here's a quick summary using three common debts:
| Debt | Balance | APR |
|---|---|---|
| Store credit card | $1,200 | 26% |
| Main credit card | $4,500 | 22% |
| Personal loan | $8,000 | 11% |
In this example, avalanche targets the main credit card first (22% APR, highest rate among the two cards once the store card's tiny balance is handled), while snowball targets the store card first regardless of rate, simply because it's the smallest balance.
The avalanche method will almost always save more in total interest, sometimes by hundreds of dollars depending on the rate spread. But the snowball method's first quick win — paying off that $1,200 card in just a few months — is often what keeps people motivated enough to finish the plan at all. If you're dealing with just one credit card rather than multiple debts, the Credit Card Payoff Calculator gives you a more focused view of that single balance.
Which method is actually right for you?
The math says avalanche. But personal finance is behavioral, not just mathematical. If you've started and abandoned debt payoff plans before, the snowball method's quick wins may be worth the extra interest cost. If you're disciplined and motivated by the math itself, avalanche is the better choice.
Could a personal loan beat both methods?
If your credit cards carry rates of 20%+ and you have decent credit, a personal loan at a lower fixed rate could save more than either the snowball or avalanche method alone. This is called debt consolidation — you replace multiple high-rate balances with one lower-rate loan and a guaranteed payoff date. See our personal loan vs credit card guide for a side-by-side cost comparison, or our guide to getting a personal loan if you're ready to explore that route.