Debt snowball vs avalanche: which is better?
Both methods work, and both beat paying random amounts on random cards. The difference is whether you optimize for money saved or momentum — and the right answer depends on you, not just the math.
Skip the math — the free debt payoff calculator runs this from your own figures.
Open the free calculator →The one rule they share
Both strategies make the same first move: pay the minimum on every debt so nothing goes delinquent, then throw every extra dollar at exactly one debt until it's gone. The only question is which debt goes first.
Spreading extra money evenly across all your debts feels productive but is the slowest approach — you want concentrated fire on a single target.
The avalanche: least interest paid
The avalanche method attacks the debt with the highest interest rate first, regardless of its balance. Mathematically this is optimal — you kill your most expensive debt fastest, so you pay the least total interest and usually finish soonest.
If your highest-rate debt also has a large balance, the trade-off is that your first win can feel far away.
The snowball: fastest wins
The snowball method attacks the smallest balance first, ignoring interest rate. You clear a whole debt quickly, which frees up its minimum payment and — more importantly — gives you a visible win that keeps you going.
It usually costs a little more in interest than the avalanche, but for many people the motivation is worth more than the difference.
How to choose
If your debts have similar rates, use the snowball — the interest difference is tiny and the momentum is real. If one debt has a dramatically higher rate (a credit card at 24% next to a car loan at 6%), lean avalanche, because that rate gap is costing you real money every month.
The best strategy is the one you'll actually stick to. The free calculator below shows your payoff date and total interest so you can compare both against your own numbers.
Questions
Can I combine the two?
Yes. A common hybrid is to knock out one or two tiny balances first for the motivation, then switch to the avalanche for the rest to minimize interest. There's no rule against mixing them.
Does my credit score change which to pick?
The payoff order is mostly about interest and motivation, but lowering high-utilization credit cards can also help your score — a mild point in favor of clearing cards early.