Where the UK millionaires went

On 6 April 2025 the United Kingdom did something it had avoided for two centuries: it abolished the non-domiciled tax status that had made London the preferred address of the world's mobile rich. In its place came a four-year regime for new arrivals and, more painfully, an inheritance tax that now reaches based on how long you have lived in Britain rather than on a murky notion of domicile. The wealthy responded the way the wealthy always respond to a tax they consider a breach of the deal: they left, visibly, and in numbers. The interesting question is not that they went. It is where, and whether they chose well.

The destinations

The exodus did not scatter randomly. It flowed down a small number of well-worn channels.

Dubai took the largest share of the pure tax refugees — the people whose priority was simply to stop paying, immediately, with no income tax and a fast, easy welcome. For a non-dom whose whole grievance was the tax bill, Dubai is the most direct possible answer.

Italy took the ones who wanted to stay European and civilised about it, drawn by the flat-tax regime for new residents — a fixed annual charge on foreign income that, for a large enough fortune, is extraordinarily efficient. Milan in particular became a landing pad for former Londoners who wanted a European city, good schools, and a tax bill they could write on a single line.

Switzerland and Monaco took the top of the top — those for whom cost was no object and who wanted permanence, discretion and an Alpine or coastal life rather than a boomtown.

Portugal, Greece and the smaller European regimes took a slice of the more modest end, people wanting sun and a gentler tax position without the price tag of the Swiss or Monégasque option.

The herd, and its problem

Here is the part the celebratory departure stories miss. A great many of these moves were reactive — driven by anger at a policy change rather than by a considered plan — and reactive moves made in a herd tend to produce regret in a predictable minority.

Some of the Dubai arrivals will find that the thing they were fleeing was not their only tie to Britain, and that a low-tax city on the other side of a time zone is a wonderful place to keep money and a difficult place to keep a family whose life, schools and grandparents are still in England. Some of the Italy arrivals will discover that the elegant flat tax sits on top of an ordinary and unforgiving domestic tax system for anything local, and that the regime has a time limit and an exit. And a few, in every destination, will find that they optimised hard for tax and forgot to ask whether they actually wanted to live where the optimisation pointed.

The people who will be fine are the ones who used the non-dom abolition as a prompt to make a move they had reasons for anyway — who chose a country, not just an escape from a country. The people who will quietly regret it are the ones who chose a tax rate and assumed a life would assemble itself around it.

The lesson for everyone else

The UK story is not really about the UK. It is a demonstration of something every wealthy person in every high-tax country should absorb: the deal can change. Non-dom status felt permanent for two hundred years, right up until it did not. Any regime that currently makes your home country tolerable — a special status, a favourable treatment, an understanding — exists at the pleasure of a government that can withdraw it, often with little notice and less sympathy.

That does not mean flee pre-emptively. It means: know your options before you need them, understand what leaving would actually cost you — including the exit charges that many countries impose on the way out — and never assume that a favourable rule is a permanent feature of your life. The Londoners who had thought it through moved smoothly. The ones who had assumed non-dom was forever spent 2025 making expensive decisions in a hurry.

The verdict

Britain's wealthy went mostly to Dubai, Italy, Switzerland, Monaco and the sunnier corners of Europe, and most of them will do well — because most of them had somewhere they genuinely wanted to be. The ones to watch are the reactive movers who chose a tax rate over a life; a share of them will be back, or moving again, within a few years. The durable lesson is the unglamorous one: relocate towards a place you want, not merely away from a bill you resent. The bill is temporary. Where you wake up is not.