Snowball vs Avalanche: Which Debt Payoff Method Saves More?

Two proven strategies dominate debt payoff planning. Understanding both helps you choose the right one — or combine them.

The Debt Snowball

Pay minimum on everything, then throw all spare cash at the smallest balance first. Once paid off, roll that payment to the next smallest. The wins come quickly, which keeps motivation high.

The Debt Avalanche

Target the highest interest rate debt first regardless of balance. Mathematically optimal — you pay less total interest over time.

Which saves more money?

The avalanche always wins on paper — sometimes by hundreds or thousands of pounds. But the snowball wins on behaviour: research consistently shows that people who get quick wins are more likely to stick to their plan.

The verdict

If your highest-interest debt also happens to be your smallest balance, both methods are identical. If you're disciplined, use avalanche. If you need motivation, use snowball. Either beats no plan.

See the exact difference for your debts with our debt payoff calculator.