If you're juggling multiple credit cards or loans, you've probably stumbled onto two competing strategies: the debt snowball and the debt avalanche.
Both promise the same finish line—zero balances—but they take very different routes to get there.
The one that works best might not be the one that saves you the most money on paper.
The avalanche method targets your highest interest rate first.
You pay minimums on everything else, then throw every spare dollar at that one expensive card or loan.
Once it's gone, you roll that payment into the next highest rate.
Over time, this approach typically saves the most in interest and can shave months off your payoff timeline.
You attack your smallest balance first, regardless of rate, then roll that payment into the next smallest.
You'll likely pay more in interest overall, but you get a quick win in weeks instead of months.
That early victory is the entire point—it keeps people from quitting.
Research from the Harvard Business Review found that people who used the snowball method were more likely to actually pay off their debts, even though avalanche was mathematically cheaper.
The psychological boost from closing an account mattered more than the savings.
If you have a large gap between your highest and lowest rates—say a 29% store card versus a 6% student loan—avalanche's savings can be real and worth chasing.
If your rates are clustered closer together, or you've started and abandoned payoff plans before, snowball's momentum may be the difference between finishing and giving up.
There's also a hybrid that works for plenty of people: knock out one tiny balance first for the quick win, then switch to avalanche for the rest.
You get the emotional jolt and the interest savings.
One thing both methods share: a budget that frees up extra cash each month.
Try cutting one recurring subscription, calling a provider to negotiate a bill, or redirecting a windfall like a tax refund or bonus toward the debt.
Even $50 extra a month changes the math significantly.
Watch out for balance transfer offers that look like a shortcut.
A 0% intro APR can help, but only if you clear the balance before the promo ends and the standard rate kicks in.
Otherwise you've just moved the problem and added a fee.
Whatever you choose, automate the minimums so you never miss a payment, and set a calendar reminder to check progress monthly.
Seeing the total drop is its own kind of motivation. **Our take:** The "best" method is the one you'll stick with past week three.
Avalanche wins on math, snowball wins on human nature, and most people should pick based on their own track record—not a spreadsheet.
If you've quit before, take the quick win.
Final Thoughts
If you're disciplined and your rates are wildly different, go after the expensive one first.