If you’re serious about paying off debt, you need a strategy. Two methods dominate: the debt snowball and the debt avalanche. Both work — but choosing the right one for your personality could save you thousands and get you debt-free years earlier.
What Is the Debt Snowball?
Popularised by Dave Ramsey, the debt snowball works by targeting your smallest balance first, regardless of interest rate:
- List debts from smallest to largest balance
- Pay minimums on all except the smallest
- Throw every extra pound at the smallest debt
- When paid off, roll that payment into the next smallest
- Repeat until debt-free
What Is the Debt Avalanche?
The mathematically optimal approach — attack your highest interest rate first:
- List debts from highest to lowest interest rate
- Pay minimums on all except the highest-rate debt
- Throw every extra pound at the highest-rate debt
- When paid off, roll into the next highest rate
- Repeat
Which Is Better?
The Avalanche wins mathematically
Attacking highest interest first always minimises total interest paid and gets you debt-free fastest — in pure numbers terms. The difference can be £500–£2,000+ depending on your debt levels.
The Snowball wins psychologically
Research from Harvard Business Review found snowball users are more likely to stick with their plan. Quick wins — eliminating small debts early — trigger a motivational response that keeps people going. The best strategy is the one you’ll actually follow.
Who Should Use Which?
Choose Snowball if: You’ve struggled to stay motivated with debt payoff before, need quick wins, or your debts have similar interest rates anyway.
Choose Avalanche if: You’re disciplined, data-driven, and have high-interest debt (20%+ APR) costing you significant money.
Tips to Accelerate Either Method
- Balance transfers: Move high-interest credit card debt to a 0% card
- Automate minimums: Never miss a payment
- Apply windfalls: Put tax refunds, bonuses, and side hustle income straight to debt
- Cut new debt: Freeze credit cards during repayment
Frequently Asked Questions
Can I combine both methods?
Yes — start with the snowball for a quick win, then switch to the avalanche. Many people find this hybrid gives the best of both worlds.
Should I pay debt or invest?
If your debt rate is above 7–8%, prioritise payoff. Below that, investing in a diversified index fund (historically 7–10% annual return) may be the better mathematical choice.
More help: How to Pay Off Debt Fast | Improve Your Credit Score
Disclaimer: The content on SavvyQuid is for informational and educational purposes only and does not constitute financial advice. Always consult a qualified financial adviser before making any financial decisions.