Both methods work. The question isn't which one is "better" — it's which one you'll finish.
What is the Debt Snowball?
Pay minimums on everything. Throw all extra cash at the smallest balance first. When it's gone, roll that freed-up payment into the next-smallest.
Example order:
- Credit Card A: $800 balance → pay off first
- Credit Card B: $2,200 balance → pay off second
- Car Loan: $6,500 balance → pay off last
The appeal: each payoff is a real win. Accounts close. Due dates disappear. For most people, those early wins provide the fuel to keep going.
What is the Debt Avalanche?
Pay minimums on everything. Throw all extra cash at the highest interest rate first, regardless of balance size.
Same debts, reordered by rate:
- Credit Card B: 24.99% APR → pay off first
- Credit Card A: 19.99% APR → pay off second
- Car Loan: 7.5% APR → pay off last
The appeal: you eliminate the most expensive debt first, which means more of every future payment goes to principal.
How much does the avalanche actually save?
For a real comparison, take these three debts with $200/month extra beyond minimums:
| Debt | Balance | APR | Min. Payment |
|---|---|---|---|
| Credit Card A | $800 | 19.99% | $20 |
| Credit Card B | $2,200 | 24.99% | $55 |
| Car Loan | $6,500 | 7.5% | $130 |
Snowball result (A → B → Car): pays off in approximately 36 months, ~$1,450 in total interest
Avalanche result (B → A → Car): pays off in approximately 36 months, ~$1,210 in total interest
The avalanche saves about $240 in interest on this debt load. Both methods finish at nearly the same time — the real gap is the interest cost, not the timeline.
On larger or higher-rate debt loads (e.g., multiple cards at 25–29%), the interest savings from avalanche can reach $500–$2,000 or more.
Which one should you choose?
Ask yourself honestly: do you need quick wins to stay motivated?
If yes — and most people do — go with the snowball. A "mathematically suboptimal" method you finish is infinitely better than the optimal method you abandon after three months.
If you're the kind of person who can trust the numbers and stay disciplined even when the first payoff takes a year, avalanche will save you money.
A few signals for each:
Snowball fits better if you:
- Have several small balances you want to close out
- Struggle to stay motivated on long timelines
- Have similar interest rates across debts (the savings from avalanche are smaller)
Avalanche fits better if you:
- Have large APR differences between debts (e.g., a 28% card vs. a 10% loan)
- Are detail-oriented and motivated by optimizing numbers
- Can tolerate slow early progress
Some people do a hybrid: knock out one small debt with the snowball for an early win, then switch to avalanche. Do whatever keeps you in the plan.
Things neither method accounts for
- Variable interest rates: Card APRs can change. Rerun your plan every few months.
- Balance transfers: A 0% intro offer can dramatically change your payoff math — sometimes making it worth targeting the transferred balance first.
- Life happens: Job loss, medical bills, car repairs. A small emergency fund alongside your debt payoff protects your progress.
The best way to decide
Run your actual numbers through both calculators. Look at the difference in months and total interest — that gap is the real cost of the snowball's motivational advantage. You get to decide if it's worth it.