If you have more than one debt, the debt snowball vs avalanche choice is your first big decision. Both methods work. They simply put your spare money in a different order, and that order changes how fast you finish and how much interest you pay. Below I explain each one, then run a real UK example so you can see the difference in pounds.
What Is the Debt Snowball Method?
With the snowball, you clear your smallest balance first, whatever its interest rate. Meanwhile, you pay the minimum on everything else and put every spare pound towards that smallest debt.
Once it is gone, you roll its payment into the next smallest debt. Your payment grows each time, like a snowball rolling downhill.
The big advantage is momentum. As a result, you get an early win, and that quick success keeps a lot of people going when motivation runs low.
What Is the Debt Avalanche Method?
The avalanche flips the order. In other words, you target the debt with the highest interest rate first, regardless of its size.
In pure numbers, this is the cheapest way to clear debt. Every spare pound goes where it costs you the most, so you pay less interest overall and usually finish sooner.
The downside is patience. For example, if your most expensive debt is also a big one, it can take many months before you tick anything off.
Debt Snowball vs Avalanche: A UK Worked Example
Let’s say you have £400 a month to put towards three debts. These are example balances and rates, but they are realistic for UK borrowing.
| Debt | Balance | Interest rate | Minimum payment |
|---|---|---|---|
| Personal loan | £1,200 | 12.9% | £60 a month |
| Credit card | £3,000 | 24.9% | £90 a month |
| Car finance | £5,000 | 9.9% | £130 a month |
The minimums add up to £280, which leaves £120 a month extra to throw at one debt.
The Snowball Result
The snowball attacks the personal loan first, because it is the smallest. Soon, it is cleared in month 7. Next comes the credit card, then the car finance. Finally, you are debt free after 28 months, having paid about £1,627 in interest.
The Avalanche Result
The avalanche attacks the credit card first, because it has the highest rate. That takes until month 18. Finally, you are debt free after 27 months, having paid about £1,509 in interest.
Debt Snowball vs Avalanche: What the Numbers Tell Us
So the avalanche saves around £118 and one month here. Meanwhile, the snowball gives you your first win almost a year earlier. Neither result is dramatic, which is the real lesson: sticking with a plan matters far more than which plan you pick.
Debt Snowball vs Avalanche: Which Should You Choose?
There is no wrong answer in the debt snowball vs avalanche debate. Instead, the right method is the one you will actually stick to.
Choose the Debt Avalanche Over the Snowball If You Love Numbers
If you are disciplined and like seeing the maths work in your favour, go avalanche. It is especially worth it when one debt has a much higher rate than the rest, such as a store card or an overdraft.
Choose the Debt Snowball Over the Avalanche If You Need Quick Wins
If you have tried to clear debt before and lost steam, go snowball. However, closing an account in the first few months can be the push that keeps you going.
Or Use a Debt Snowball and Avalanche Hybrid
Alternatively, you can mix the two. Clear one small debt quickly for the confidence boost, then switch to the avalanche for the rest.
How to Start the Debt Snowball or Avalanche Today
Whichever method you choose, the steps are the same.
Step 1: List Every Debt
Write down each balance, interest rate and minimum payment. Include overdrafts, buy now pay later and money owed to family.
Step 2: Pay the Minimum on Everything
Never miss a minimum payment. Otherwise, missed payments add fees and can damage your credit score.
Step 3: Find Your Extra Money
Next, work out what you can add on top of the minimums each month. My free budget planner makes this quick.
Step 4: Pick Your Target Debt
Choose the smallest balance for the snowball, or the highest rate for the avalanche. Put all your extra money there.
Step 5: Roll Payments Forward and Track Progress
When a debt is cleared, move its full payment to the next one. To keep track, use my free Debt Payoff Planner spreadsheet, which shows your debt free date.
Where to Get Free Debt Help in the UK
If your debts feel unmanageable, you do not have to deal with them alone. MoneyHelper, which is backed by the government, offers free and confidential debt advice.
Also, if credit card debt is the main problem, a 0% balance transfer card could buy you time. Just make sure you can clear it before the offer ends.
You might also find this useful: How to Make a Financial Plan in 8 Simple Steps.
Debt Snowball vs Avalanche: Common Questions
Which method saves the most money?
The avalanche method, which clears the highest interest debt first, usually saves the most interest. The snowball method can feel more motivating because you clear small debts quickly.
Can I use a 0% balance transfer card?
It can help, as long as you clear the balance before the 0% period ends and don’t add new spending. Watch out for the transfer fee.
Where can I get free debt advice?
Free, impartial help is available through MoneyHelper. You can also plan repayments with our free debt payoff planner.
The Bottom Line
The debt snowball vs avalanche question has a simple answer: the avalanche saves the most money, and the snowball keeps the most people going. Pick the one that suits how you think, start this month, and once you are debt free, read my guide on paying off debt vs investing for what to do next.
Content on IceburgWealth.com is for general information only and is not financial advice. I am not a regulated financial adviser, and tax rules and figures can change. Always do your own research and consider speaking to a qualified adviser before making any financial decision.
This article is part of our Saving and Budgeting Guide, where you will find every related article in one place.
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