If you're juggling multiple credit cards, you've probably stumbled onto two popular payoff strategies: the debt snowball and the debt avalanche.
But they produce very different feelings—and very different math.
The snowball method, popularized by Dave Ramsey, says list your debts from smallest balance to largest, ignoring interest rates.
Pay minimums on everything, then throw every extra dollar at the smallest debt.
Once it's gone, roll that payment into the next one.
You get a quick win within weeks, which keeps a lot of people from quitting.
You rank debts by interest rate, highest first.
Same mechanics—minimums everywhere, extra cash to the top target—but your payoff order is driven by math.
Because credit card APRs often run 20% to 29% right now, attacking the priciest balance first cuts the total interest you hand over.
A 2023 study from the Federal Reserve Bank of Boston found that people who focused on one debt at a time—regardless of which method—were more likely to actually finish.
The researchers found that paying off small balances first could be just as effective as the avalanche in getting people debt-free, because momentum matters more than optimization for many households.
If you have a $400 medical bill and a $6,000 card at 27%, the snowball kills the small one fast and gives you a psychological boost.
But if you have a $5,200 card at 29% and a $5,500 card at 19%, the avalanche is the clear financial winner—you'd save hundreds in interest by targeting the higher-rate balance first.
The gap between the two methods shrinks when your balances are similar in size or your rates are close.
It widens when you're carrying a mix of low-rate store cards and high-rate general-purpose cards.
In those cases, running the numbers in a free calculator like the one at undebt.it or NerdWallet takes about five minutes.
One overlooked move: ask for a lower APR before you start.
A 2024 LendingTree survey found that about 70% of cardholders who called and requested a rate reduction got one—often several percentage points.
That single phone call can change which debt deserves your extra cash.
Also worth knowing: the avalanche usually saves more money on paper, but the snowball often wins on behavior.
If spreadsheets make you anxious and quitting is your real risk, the snowball's early wins may be worth the extra interest.
If you're disciplined and want the cheapest exit, go avalanche.
Either way, the biggest factor isn't the method—it's the extra payment.
A $50 monthly bump toward debt beats a perfect strategy with no follow-through.
Automate the payment so you don't have to think about it, and avoid adding new balances while you dig out.
My take: pick the avalanche if your highest rate is at least five points above the rest.
Pick the snowball if you've started and stopped before.
Final Thoughts
The best plan is the one you'll actually finish—not the one that looks smartest in a spreadsheet.