The Debt Snowball Method (UK Guide): How It Works and When to Use It

Repay Debt Blog

If you have several debts and feel like you are getting nowhere, the debt snowball method is one way to organise your repayments and start making visible progress.

The idea is simple: you focus on clearing one debt at a time, starting with the smallest balance. As each debt disappears, the money you were paying towards it gets rolled into the next one. Over time the payments grow larger, like a snowball rolling downhill.

For many people, this approach can provide the motivation needed to keep going.

How the Debt Snowball Works

The steps are straightforward.

1. List all your debts

Write down every non-mortgage debt you have, for example:

  • Credit cards
  • Personal loans
  • Buy Now Pay Later balances
  • Overdrafts
  • Store cards
  • Payday loans

Include the balance and minimum monthly payment.

2. Order them by balance

Arrange the debts from smallest balance to largest, ignoring interest rates for now.

Example:

Debt Balance Minimum Payment
Credit Card A £450 £25
Catalogue £900 £40
Personal Loan £4,000 £120
Credit Card B £6,500 £150

3. Pay minimum payments on everything

Continue making the minimum payment on every debt so you stay up to date.

4. Throw extra money at the smallest debt

Any spare money you have goes toward the smallest balance first.

Once that debt is cleared, take the payment you were making and add it to the next debt.

The payments gradually grow larger as debts disappear.

Why It’s Called a Snowball

Imagine the example above.

When the £450 credit card is cleared, the £25 payment doesn’t disappear. It gets added to the next debt.

So instead of paying £40 on the catalogue debt, you now pay £65.

When that debt is cleared, the £65 gets added to the next payment, and so on.

Each time a debt disappears, your repayment power increases.

That’s the “snowball”.

Why People Like the Debt Snowball

Mathematically it isn’t always the cheapest method.

Psychologically it can be incredibly powerful.

Clearing smaller debts quickly gives you visible wins early on, which helps maintain motivation. Many people abandon repayment plans because progress feels slow. The snowball approach solves that by delivering early results.

Benefits include:

  • Quick wins that build momentum
  • A simple repayment structure
  • Fewer debts to manage over time
  • Growing repayment power as balances disappear

For someone who has struggled with debt for years, that momentum can make a huge difference.

Debt Snowball vs Debt Avalanche

There is another common method called the debt avalanche.

The difference is simple.

Debt Snowball

  • Pay smallest balances first

Debt Avalanche

  • Pay highest interest rates first

The avalanche method can save more money in interest, but it often takes longer before you see any debts fully cleared.

The snowball method prioritises motivation and behaviour change over pure maths.

And when it comes to debt, behaviour is usually the bigger problem.

A UK Example

Imagine someone has the following debts:

Debt Balance APR
Store Card £300 35%
Credit Card £2,000 29%
Personal Loan £7,500 12%

If they have £250 per month available:

  • Minimum payments go to all debts
  • Extra money goes to the £300 store card first

That balance could disappear quickly. Once it does, the payment rolls onto the credit card.

The snowball keeps growing until eventually only the largest debt remains.

Where the Snowball Works Best

The snowball method tends to work well when someone:

  • Has multiple small debts
  • Needs motivation to stay consistent
  • Has struggled with debt habits in the past
  • Wants a simple repayment plan

It can be particularly helpful for people who previously ignored debts until they defaulted. Clearing accounts one by one creates a sense of progress that can keep you on track.

When the Snowball Might Not Be Ideal

There are situations where another strategy might make more sense.

For example:

  • When one debt has extremely high interest
  • When balances are very large
  • When debts are already in a debt management plan

If debts have already defaulted, interest may have stopped, which changes the repayment strategy entirely.

Getting Help With Debt in the UK

If you are struggling to keep up with repayments, it may be worth speaking to a free debt advice organisation such as:

  • StepChange Debt Charity
  • National Debtline
  • Citizens Advice

They can help you look at options such as:

  • Debt management plans
  • Reduced payment arrangements
  • Breathing Space protections

Visit our debt help page to get started.

The Debt Snowball Method

The debt snowball method isn’t about complex financial theory.

It’s about building momentum.

By clearing one debt at a time and rolling the payments forward, the process becomes easier to sustain. Over time you go from juggling many debts to focusing on just one.

And for anyone who has spent years feeling stuck with debt, that sense of progress can make all the difference.

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