If you’ve ever wished for a friend who happens to know everything about money, Martin Lewis is probably that person for millions of Brits. The founder of MoneySavingExpert.com turned a £100 website in 2003 into the UK’s most trusted finance hub — and eventually sold it for up to £87 million in 2012. Today, he continues issuing blunt warnings about savings traps, ISA limits, and tax pitfalls that catch thousands of people off guard every year.

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Founded: 2003 · Sold for: up to £87 million · Buyer: Moneysupermarket.com · Trustpilot Reviews: 783

Quick snapshot

1Confirmed facts
2What’s unclear
  • Whether ISA cuts will be confirmed in the autumn budget
  • Exact current rates across all Cash ISA providers
  • Martin Lewis’s exact ongoing advisory role post-sale
3Timeline signal
4What’s next
  • Government reviewing ISA allowance; cut to £4,000 mooted (MoneySavingExpert)
  • Lewis advises acting sooner rather than later (MoneySavingExpert)
  • Existing ISA balances protected regardless (MoneySavingExpert)

The following table summarises key facts about MoneySavingExpert.com and its founder based on verified sources.

Field Value
Founder Martin Lewis
Launch Date February 2003
Initial Cost £100
Sold To Moneysupermarket.com
Sale Amount Up to £87 million

How much did Martin Lewis sell Money Saving Expert for?

Martin Lewis launched MoneySavingExpert.com in February 2003, spending just £100 to set up a site that would eventually reshape how Britain thinks about personal finance. For years, he ran it independently while building a reputation as the country’s most straightforward money commentator — a reputation cemented by his regular appearances on ITV’s This Morning.

In June 2012, Lewis sold the site to the Moneysupermarket.com group for up to £87 million (Ian Brodie). The deal included a promise to donate £10 million from the proceeds to charity. At the time, it was one of the most significant exits in UK consumer fintech history — and a remarkable validation of a platform built entirely on earned trust.

Sale details

  • MSE launched in 2003 with £100 initial investment
  • Site grew to become UK’s most-visited money management resource
  • Sale completed June 2012 to Moneysupermarket.com

Buyer and impact

  • Moneysupermarket.com acquired MSE as part of its finance portal strategy
  • Lewis pledged £10 million to charitable causes from sale proceeds (Ian Brodie)
  • MSE retained editorial independence under the new ownership
What this means

The sale proved that consumer trust, when built systematically, is a sellable asset. MSE was never the biggest finance site — it was the most credible. That distinction kept it at the top of search rankings and made it the default recommendation whenever anyone asked where to find reliable money advice.

What is the Martin Lewis warning for savings over 20k?

Martin Lewis has spent years hammering one message into British savers: the moment your savings exceed certain thresholds, the taxman starts taking a cut. In a video warning that has circulated widely, Lewis explained that anyone with more than £10,000 sitting in a standard UK savings account could be liable for tax on the interest earned (YouTube – Martin Lewis Warning).

The trigger point depends on your tax band. Basic-rate taxpayers can earn £1,000 in interest annually before paying tax under the Personal Savings Allowance. Higher-rate taxpayers drop to £500. Additional-rate taxpayers get nothing — the allowance disappears entirely. At current savings rates around 5%, a basic-rate taxpayer holding £20,000 would generate roughly £1,000 in interest over a year, maxing out their allowance with a single account (YouTube – Martin Lewis Warning).

£20,000 savings rule

  • Basic-rate PSA limit: £1,000 tax-free interest per year
  • Higher-rate PSA limit: £500 tax-free interest per year
  • Additional-rate: No Personal Savings Allowance applies
  • £20,000 at 5% = £1,000 interest, breaching basic-rate PSA

Risks of wrong accounts

  • Regular savings accounts: interest taxed automatically via HMRC
  • Cash ISAs: interest completely tax-free up to the annual limit
  • Lewis recommends moving savings into Cash ISAs before the tax year ends
The catch

Chancellor Rachel Reeves is currently evaluating whether to slash the Cash ISA allowance from £20,000 down to £4,000. Lewis called this “not a rumour — I know it for fact” in an MSE article published 28 April 2025 (MoneySavingExpert). If that reduction goes through, millions of savers who planned to shelter larger sums will suddenly face a much tighter window.

What does Martin Lewis say about saving?

Beyond the tax warnings, Lewis’s core saving philosophy is blunt: don’t leave it too late. His latest advice, delivered in an April 2025 MSE article, was direct — if you’re planning to save into a Cash ISA this tax year and have the funds available, get the money in sooner rather than waiting. “Getting the money in sooner would seem safer,” he said, acknowledging that the government’s ISA review creates genuine uncertainty for savers who still have room to act (MoneySavingExpert).

Maximise every penny

  • Check your interest rate — many people sit in accounts paying 0.1% when 4-5% is available
  • Use comparison tools to find the best easy-access Cash ISA rates
  • Top easy-access Cash ISAs currently offer competitive rates with penalty-free withdrawals (YouTube – Martin Lewis Warning)

Top savings tips

  • Martin Lewis tested the Nationwide bank switch offering £200 incentive (Independent)
  • Shop in world foods aisles for cheaper staples on everyday items
  • Check bottom supermarket shelves for cheapest own-brand products
  • MSE provides a high street sales diary to track seasonal promotions
The upshot

The Personal Savings Allowance isn’t a future concern — it’s active now. Anyone with £20,000 sitting in a standard savings account at today’s rates is likely earning interest that exceeds what HMRC will tax. The fix is structurally simple: move the money to a Cash ISA. The urgency is entirely political.

What’s the smartest thing to do with 20k?

For a lump sum like £20,000, the “smartest” move depends entirely on when you need the money. Lewis draws a clear distinction: if you need the cash accessible within a year or two, savings in a Cash ISA is the obvious answer. If you can leave it untouched for five years or more, investing starts to make genuine mathematical sense — particularly if the ISA allowance gets slashed and you’re forced to hold taxable savings anyway.

Investment options

  • Cash ISA: tax-free growth, fully protected up to £85,000 via FSCS
  • Stocks & Shares ISA: potential for higher returns, but values can fall
  • Premium Bonds: random prize draws, no interest guarantee
  • Fixed-rate bonds: higher rates, but money locked away for 1-5 years

Savings vs investing

  • Cash ISA: best for short-term needs, peace of mind, FSCS protection
  • Investing: better for long-term goals, higher potential returns, market risk applies
  • Lewis suggests: “If you’ve got more than £10,000 sitting in a UK savings account, you could be taxed” — and if you’re not using the tax-free wrapper, you’re giving HMRC money you don’t have to (YouTube – Martin Lewis Warning)
The trade-off

If the government confirms an ISA cut to £4,000, savers with £20,000 will face a choice they can’t avoid: either accept that the excess sits in a taxable account, or shift it into investments before the new limit applies. That decision has a time window attached to it — and Lewis is telling people not to wait until the last minute.

What is the 60% trap?

The 60% tax trap is one of the most insidious features of the UK pension system, and it’s been flagged by Martin Lewis in the context of his broader financial warnings. Put simply: when your income crosses certain thresholds, the marginal tax rate on additional income doesn’t just jump — it can leap by nearly half. The mechanism trips up higher earners who don’t realise that targeted pension contributions can pull their income back below the threshold and restore the tax they’d otherwise lose.

Pensions tax trap

  • Earnings above £100,000 face a progressive withdrawal of personal allowance
  • For every £2 earned above £100,000, £1 of personal allowance is lost
  • This creates an effective marginal rate of 60% within that band
  • At £125,140, the personal allowance reaches zero

How to avoid it

  • Make pension contributions to reduce adjusted income below £100,000
  • Salary sacrifice arrangements with employers can help
  • Lewis has highlighted this trap in the context of Lloyds Bank pension schemes
  • Even small contributions can restore thousands in tax-free allowance
Why this matters

The 60% trap catches people who are earning well but not wealthy enough to have a financial adviser spotting these thresholds. A teacher moving into a headship, an NHS manager crossing a band, a freelancer with a good year — all of them can suddenly find that a £5,000 pay rise results in £3,000 of extra tax. Lewis’s site flags these traps because they’re the kind of hidden mechanism that keeps people poorer than they need to be.

Bottom line: What this means: Higher earners should calculate whether pension contributions would offset the 60% marginal rate before accepting any pay increase that pushes income above £100,000.

Upsides

  • MSE offers completely free, actionable money advice trusted by millions
  • Cash ISA protection means tax-free growth on savings up to £20,000 per year
  • Lewis’s warnings have prompted government reversals before
  • Bank switching tips (like the £200 Nationwide offer) deliver guaranteed gains

Downsides

  • Proposed ISA cuts could reduce annual tax-free allowance to £4,000
  • Savers over £10,000 already face PSA tax exposure if not in ISAs
  • The 60% pension trap catches higher earners without warning
  • Some advice is time-sensitive — waiting means missing out

“"If you’ve got more than £10,000 sitting in a UK savings account, Martin Lewis says you could be taxed."”

— Narrator, YouTube Video

“"Now, the Chancellor, Rachel Reeves, has been evaluating cutting the cash ISA allowance. That’s not a rumour. I know it for fact."”

— Martin Lewis, MoneySavingExpert Founder

Related reading: UK high street clothing store closures · Pound to Indian Rupee exchange rate

Additional sources

youtube.com, moneysavingexpert.com, moneysavingexpert.com, moneysavingexpert.com

Lewis’s £20k savings warnings spotlight issues like his recent ISA allowance warning, pushing savers to maximise tax-free growth before the April 5 deadline.

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Frequently asked questions

Who is Martin Lewis?

Martin Lewis is a British financial journalist and campaigner who founded MoneySavingExpert.com in 2003. He became famous through regular appearances on ITV’s This Morning, where he gives blunt, practical advice on saving money, managing debt, and avoiding financial traps. He sold MSE to Moneysupermarket.com for up to £87 million in 2012 while maintaining his role as a consumer finance advocate.

What is MoneySavingExpert.com?

MoneySavingExpert.com (MSE) is a UK consumer finance website founded by Martin Lewis in February 2003. It offers free tools, calculators, and editorial advice covering savings accounts, ISAs, credit cards, mortgages, insurance, and supermarket deals. It became the UK’s most-visited personal finance resource before being acquired by Moneysupermarket.com in 2012.

What is Martin Lewis’ latest advice?

Lewis’s most urgent current warning concerns the proposed reduction of the Cash ISA allowance from £20,000 to £4,000. In an article published 28 April 2025, he advised savers who are planning to put money into a Cash ISA this tax year to act sooner rather than later. He also reinforced the message that anyone with more than £10,000 in a standard savings account could be earning taxable interest that belongs in an ISA wrapper.

What is the warning about Tesco Clubcard?

MSE has flagged that Tesco Clubcards expire every two years unless used or renewed. Customers who forget about the expiry dates lose accumulated points worth real money — a classic example of how loyalty schemes quietly erode value for absent-minded consumers. MSE’s Deals Hunter section tracks expiry dates and promotional alerts to help people avoid these losses.

Has Martin Lewis issued recent investment advice?

Lewis has consistently distinguished between saving and investing. His guidance is clear: if you need the money within a year or two, Cash ISAs and easy-access savings are the route. If you can leave investments untouched for five years or more, the mathematical case for investing in diversified funds becomes stronger — particularly if ISA allowance cuts leave you with fewer tax-efficient options for cash.

Who is Martin Lewis’ famous wife?

Martin Lewis is married to TV presenter Kate Farrell. He generally keeps his personal life private, focusing his public profile entirely on financial education and consumer advocacy rather than celebrity aspects of his personal circumstances.

What is the Martin Lewis Money show?

“The Martin Lewis Money Show” is a UK television programme that aired on ITV, featuring Lewis delivering practical financial advice in an accessible, conversational format. The show ran for multiple series, covering topics ranging from energy bill hacks to pension reform, and helped cement Lewis’s reputation as the UK’s most trusted consumer finance voice.