The Snowball vs. Avalanche Method: which way works best for you?
By Mr Bankruptcy
23rd September 2026
If you’ve got multiple debts, you’ve probably asked yourself the same question that many of my clients have asked: where do I start?
Two ways dominate debt-free success stories I’ve seen: the ‘Snowball’ and the ‘Avalanche’ methods. One is mathematically optima; the other is psychologically powerful. Understanding which one suits your situation and your mindset the best is key to escaping from unmanageable debt.
A quick explanation
It’s important to understand the difference between the two methods:
- The Avalanche method: attack the interest. This requires you to list all your debts by interest rate, from highest to lowest. You pay the minimum monthly amounts on everything, then throw every extra pound you have at the debt with the highest rate. Once that’s gone, you move on to the debt with the next highest. This is the cheapest way to get out of debt. Every pound goes toward killing the most expensive debt first, stopping it from growing so you pay less interest overall.
- The Snowball method: attack the balance. This way you list all your debts by the balance, smallest to largest, regardless of interest rate. You pay the minimum monthly amounts on everything, then throw every extra pound at the smallest balance. When it is gone, you roll that payment into the next smallest. You might pay a bit more in interest, but you get quick wins. Every closed debt gives you a psychological boost and proof that you’re making progress.
Comparing the numbers
Imagine you have £300 in your monthly budget to put toward debt, on top of the £260 needed for the minimum payments across three debt accounts:
- Credit card: £6,000 balance at 22% APR (Minimum payment: £120)
- Personal loan: £3,500 balance at 10% APR (Minimum payment: £90)
- Store card: £1,000 balance at 0% APR (Minimum payment: £50)
Option 1: The Avalanche Method (Interest-Focused)
You list your debts by APR: credit card A (22%), personal loan (10%), then the store card (0%). You pay the minimums on the loan and store card bill (£140 total) and pour your extra £300 into the credit card (paying £420 in total).
It takes a while to see an account completely disappear because your first target is a large £6,000 balance. However, because you attacked the 22% interest rate first, you stop the interest from compounding, saving you hundreds or thousands of pounds over the life of your debt.
Option 2: The Snowball Method (Balance-Focused)
This time you prioritise your debts by balance size: store card (£1,000), personal loan (£3,500), then credit card (£6,000). You pay the minimums on the credit card and loan (£210 total) and throw your extra £300 at the store card (paying £350 total on it).
In less than three months, the store card is wiped out completely, you get a real buzz and you can then roll that former bill’s £50 minimum plus your £300 extra (£350 total) into the personal loan. The amount you can pay ‘snowballs’ as each debt vanishes.
Either method preserves your credit rating because you’re achieving minimum payments. Option 1 can save you money, possibly lots if your debts are significantly larger than the example above. Option 2 sees quicker progress clearing debts.
Which system works best for you?
Personal finance is personal. Choose Avalanche if you are disciplined, patient, and hate the idea of throwing money away on interest fees.
However, choose Snowball if you feel overwhelmed by the number of bills landing on your doormat and need the motivation of an emotional boost from crossing debts quickly off your list.
There is no wrong answer; taking action to clear your problem debt is always a healthy step, no matter how you do it. The best method is the one you actually stick at.
Debt-free isn’t about finding a magic trick; it’s about choosing a clear strategy and sticking to it until there’s nothing left to pay.
James Rosa Associates
James Rosa Associates is a firm of specialist debt advisors and debt adjustors with a reputation for a friendly and non-judgmental approach to individuals, business owners and company directors at all levels.
We are authorised and regulated by the Financial Conduct Authority (FRN665061) to work with clients to produce bespoke solutions to fit their specific circumstances, offering a wide range of debt services, including insolvency support and personal assisted bankruptcy.
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Please be advised that all views expressed in these posts are those of the author and not of James Rosa Associates ltd.