- Britain’s Labour government has scrapped the centuries-old “non-dom” tax regime and inheritance tax reliefs, prompting wealthy individuals to relocate abroad.
- High-profile billionaires like Charlie Mullins and Nassef Sawiris are leaving for low-tax havens such as Dubai, Monaco, and Switzerland.
- Experts warn that the tax exodus could cost the Treasury up to £12.2 billion if half of non-doms depart.
- Despite the outflow, an influx of wealthy Americans and strong lifestyle factors may cushion the economic impact
London — Once the undisputed playground of global wealth, London now finds itself on uncertain footing. A stream of billionaires, entrepreneurs, and hedge fund managers are packing up, lured by sunnier shores — and friendlier tax regimes. The question troubling policymakers and economists alike: is this a temporary trickle or the beginning of a structural flight of capital?
The signs are already visible. Charlie Mullins, the flamboyant founder of Pimlico Plumbers, recently relocated to Spain and Dubai. “Britain’s just not a good place to do business anymore,” he said, reflecting on a career that saw him pay over £100 million in taxes. He’s now exploring a new plumbing venture in the Middle East.
He’s far from alone.
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From Monaco to Marbella, and from Switzerland to the Emirates, British tax exiles are finding refuge. Alfie Best, a self-made millionaire who ran holiday parks, said he chose Monaco over Britain due to “stifling” regulatory and tax burdens. “They’re chasing wealth out the front door,” he quipped while aboard his 100-foot yacht.
Exit From London: What’s Driving the Flight?
At the heart of the exodus is a sweeping overhaul of the UK’s tax code under the Labour government led by Prime Minister Keir Starmer. In a bid to increase revenue and fund public services, Labour axed the centuries-old “non-dom” tax status — a loophole that allowed foreign residents to avoid UK taxes on global income.
While the reform was originally proposed under the Conservative government, Labour moved swiftly to implement it after winning power in July 2024. By April 2025, the regime was history. The government also moved to eliminate inheritance tax relief on global assets, making Britain’s 40% estate tax harder to sidestep.
“These are some of the most consequential changes to Britain’s tax system in modern history,” said Clare Maurice, a London-based private wealth lawyer. “We’ve seen a very significant number of people leave. How many more have been discouraged from coming at all — we’ll never know.”
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Official figures won’t confirm how many non-doms have fled until HM Revenue & Customs releases data next year. But anecdotal evidence is growing.
Where Are They Going?
Egyptian billionaire and Aston Villa co-owner Nassef Sawiris recently told the Financial Times that nearly everyone in his circle is planning to leave Britain this or next April — timing their departure around the school calendar. Some are heading to Italy, where a flat €100,000 annual tax shields foreign income. Others prefer the UAE or Switzerland.
The Centre for Economics and Business Research warns that if even a quarter of non-doms depart, the anticipated gains from the reforms could be wiped out. If half leave, the Treasury could lose £12.2 billion over the parliamentary term — a fiscal own goal.
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Robert Watts, compiler of the Sunday Times Rich List, said the super-rich aren’t angry — just exhausted. “They’re concerned this isn’t a place where it’s easy to build and grow a successful business,” he said.
Watts has seen the effects firsthand. The 2025 Rich List reported the steepest drop in its 37-year history — from 165 billionaires in 2024 to 156 today. “Many of us may be uncomfortable with billionaires, but future generations won’t thank us for ignoring their impact. These are people who create jobs,” he warned.
The Property Market Signals a Shift
In Belgravia and Knightsbridge — neighborhoods synonymous with wealth — estate agents report a rise in “super-prime” listings. “It’s absolutely a buyer’s market,” said Stuart Bailey of Knight Frank. Homes priced between £5 million and £10 million are now sitting longer and seeing discounts.
The void left by departing elites is, in part, being filled by others. Bailey noted a record number of Americans seeking residency or citizenship, driven partly by favorable currency rates. Over 6,600 Americans applied last year, with nearly 2,000 in the first quarter of 2025 alone.
Is the Exodus Overstated?
Not all experts believe the shift is permanent — or harmful. Arun Advani, a tax economist at the University of Warwick, draws parallels with 2017, when tax reforms prompted about 5% of non-doms to leave. “The rest stayed — and paid 50% more in taxes,” he said. This time, he acknowledges, the stakes are higher and more may leave. But the overall fiscal outcome could still be positive.
“Lifestyle matters,” Advani emphasized. “Those with kids in private schools or deep social ties are less likely to leave than retirees with villas in Marbella.”
Tony Travers, a political scientist at the London School of Economics, believes what’s happening is part of a global reordering. “It’s a sorting exercise. The ultra-wealthy are gravitating toward jurisdictions that align with their interests. But many still find London’s institutions, culture, and language hard to replace.”
After all, as he put it, “If they really wanted to, those in Manhattan townhouses or Mayfair mansions could have moved to the Bahamas decades ago. But they stayed.”
A Polarized Public Reaction
Among the public and media, the reaction has been mixed. While policymakers worry about tax revenues and job creators, others celebrate the exit. Caitlin Moran, columnist at The Times, wrote: “By and large, they’re awful neighbours.”
As the UK economy tries to recover from sluggish growth and ailing public services, the debate is far from settled. For now, London remains a global hub — but perhaps a little less gilded than before.