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Stoozing - make money with 0% credit cards

Stoozing – make free cash

Earn interest from 0% credit cards

Martin Lewis
Martin Lewis
Money Saving Expert
Updated 28 February 2025

You can make £100s in profit by cleverly manipulating credit cards to save what you borrow at high interest! During the last decade this got trickier as savings rates were spitworthily low. But now that those rates have increased significantly, the art of stoozing has been revitalised!

This guide was originally written by Martin Lewis, and is now updated by the MSE Money Team.

The premise... borrow free, earn £100s

Loads of cards lend new customers money at 0%. By grabbing this cash then saving it at as high a rate of interest as possible, you're earning interest on money they've lent you for free.

In stoozing's heyday, the amounts people could get were huge. The biggest stooze-pot we heard about was £80,000 of 0% credit card debt (multiple cards, continually rolling onto 0% deals) which saved the 'stoozer' nearly £5,000 a year as the money was offset against their mortgage.

Though you can't match those figures now, it's still possible to make a bit of free cash.

But if you're looking for more than just 0% spending or you've debts and don't think stoozing is for you, see our credit cards page for full options.

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Who can do this?

Though lucrative, this technique is tricky, and not suitable for everyone. If you decide to give it a go, read this article in full, and make sure you understand the process, as mistakes can have a high cost.

  • Be credit card debt-free
    Only use this technique if you don't have any credit card debts and have a decent credit history. Those who already have debts on plastic should use all available new credit to reduce the interest. Read the Best Balance Transfers guide.

  • Ensure you're on the ball
    Do it right and this is risk-free. Yet stoozing isn't for the forgetful, ill-disciplined or inattentive. If that's you, stop reading now, as getting this wrong costs.

  • Consider cashback instead
    If you're a little forgetful, or would just prefer a simpler way to make free cash, a more foolproof way to profit is simply using a cashback credit card and paying it off in full every month. For the current top picks, read the Credit card rewards guide, and see our Credit Cards page for more options.

How to stooze...

In a nutshell, the idea is to do your normal spending on an interest-free credit card, and let the dosh you'd normally be using build up in a savings account, earning interest.

This requires discipline, and is absolutely NOT a way to spend more than you would have – it's a money-making recipe. So don't overspend and never breach the card's credit limit.

How much can you make from stoozing?

Here's an example of how much you could make from using this technique:

Sally Stoozer gets a 21mth credit card with a £5,000 limit. She usually spends £1,250 a month, and puts all that spending on the card. She moves an equal sum of money from her bank account to a 5.15% easy-access account each month, while paying just the monthly minimum on the card.

A little after four months Sally has nearly £5,000 in there, which builds in interest while she makes the minimum payments on the card from another account. When the 0% period on the card ends, she pays off the remaining balance and, after paying herself back for the minimum payments she's already made, has £400 profit left in the account.

Will stoozing hit your credit score?

Most lenders' scoring systems aren't sophisticated enough to detect that you're playing this free cash gain.

Yet multiple, clustered applications, and high outstanding debts, even at 0%, will diminish your ability to get competitive credit, so always spread card applications out.

In stoozing's early days, some people got huge amounts at 0%. Now lending criteria is tighter, and mortgage affordability checks are getting tougher, so it's best to start small and not overstretch yourself (read the Credit Scoring guide).

And if you have a mortgage application or important credit application coming up, a credit card debt (especially if it's maxed out) could affect lenders' affordability checks, so you might need to hold off on stoozing.

A note for the curious: where does 'stoozing' come from?

This isn't a fly-by-night system. Martin first broadcast a strategy for this in early 2000, as 0% credit card interest rates began. Many who started back then now report thousands in total gains.

As the number of 0% cards increased, so did the number of people taking advantage. The now-commonly used name is ‘stoozing', used to describe any technique to profit out of playing credit card companies deals.

We gather that a couple of years after the technique started, the term started to gain common usage in the discussion forums of ‘the Motley Fool' website, due to a contributer there called Stooz. Yet regardless of whether it's ‘free cash' or ‘stoozing', either way, hopefully it'll be cash in your pocket.

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