One of Britain’s biggest individual taxpayers is leaving the UK for Greece after paying an estimated £330 million in tax in the latest Sunday Times Tax List. Chris Rokos, founder of hedge fund Rokos Capital Management, is moving his tax residence, putting fresh focus on a question many Britons are now asking: are wealthy taxpayers leaving the UK because the tax system has become less attractive? (The Times)
The story is significant, but it does not mean ordinary UK taxpayers are about to face a new tax bill because one billionaire has moved abroad.
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What’s actually true
Chris Rokos, 55, founded Rokos Capital Management in 2015 after leaving hedge fund Brevan Howard. His firm now manages more than $20 billion, according to current reports, and Rokos was ranked Britain’s third-highest individual taxpayer in the latest Sunday Times Tax List. (The Times)
The reported £330 million tax contribution is an extraordinary amount. Reports have compared it with the combined tax paid by around 21,000 British households, using an estimated average household tax bill. That comparison is designed to illustrate the scale of Rokos’s contribution — it does not mean he personally paid a tax charge that was formally equivalent to 21,000 households. (IndexBox)
Rokos is now transferring his tax residence to Greece and is reportedly planning to establish an Athens office for his business. His decision comes against the backdrop of significant changes to the UK’s treatment of internationally mobile wealthy residents. (The Times)
How this connects to the UK’s changing tax rules
The biggest development is the UK’s overhaul of the old non-dom system.
From 6 April 2025, the previous remittance-basis regime for UK-resident non-domiciled individuals was abolished. It was replaced with a residence-based system, including a new four-year Foreign Income and Gains regime for qualifying people who become UK tax resident after at least 10 years of non-UK residence. (GOV.UK)
For long-term UK residents who previously relied on the old rules, the change can be substantial. HM Revenue & Customs says that, from the 2026-27 tax year, people who are not eligible for the new regime are generally taxed on worldwide income under the arising basis. (GOV.UK)
Greece, meanwhile, offers special tax incentives under certain conditions to people transferring their tax residence there. However, it is important not to reduce the comparison to the claim that “Greece charges rich people only €100,000”. Greek tax residents are generally subject to tax on worldwide income, while specific incentive regimes have their own eligibility requirements. (Ministry of Economy)
The misconception many people are missing
The headline can easily create the impression that Britain’s tax system is simply driving every wealthy person overseas.
That is too simplistic.
A wealthy person’s decision to relocate can depend on tax, business considerations, family circumstances, investment opportunities, residency rules and future expectations. The fact that one high-profile taxpayer has moved does not prove that the UK is experiencing a wholesale departure of wealthy residents.
It is also wrong to assume that leaving Britain automatically eliminates UK tax. UK-source income, assets and other financial interests can remain subject to UK taxation, depending on the circumstances. Tax residence is a technical legal question, not simply a matter of owning a home somewhere else.
What does this mean for ordinary UK taxpayers?
For most households, very little changes directly because of Rokos’s move.
The wider issue is more important: governments need to balance raising revenue from high earners and internationally mobile wealth against maintaining the UK’s attractiveness as a place to live, invest and run businesses.
That debate matters because decisions made at the top end of the tax system can eventually influence government revenue, investment and future tax policy. But it would be premature to conclude that one departure will automatically lead to higher taxes for everyone else.
What to do next
If you are a normal UK employee, pensioner or household taxpayer, there is no reason to change your financial arrangements because of this story.
If you are considering moving abroad yourself, however, do not assume that changing your address changes your tax status. UK residence rules, foreign income, capital gains, property and double-taxation agreements can all matter.
Check the latest guidance from HM Revenue & Customs (GOV.UK) before making decisions, and seek professional advice where significant assets or cross-border income are involved.
Key takeaways
- Chris Rokos is reportedly moving his tax residence from the UK to Greece.
- He was ranked Britain’s third-highest taxpayer, with £330 million in tax reported for the latest list. (The Times)
- The “21,000 households” comparison is an illustration of scale, not a literal tax assessment.
- The move follows major changes to Britain’s former non-dom tax regime.
- Greece has special tax arrangements for qualifying new residents, but the rules are more complicated than a simple flat-tax comparison.
- For most UK households, Rokos’s departure does not directly change their personal tax position.