Millionaires Leaving the UK: The Real 2026 Numbers

In 30 Seconds

You have seen the headline: 16,500 millionaires fleeing the UK in a single year, the biggest exodus of any country on record. Here is what the headlines have not caught up with: in June 2026 the firm behind that number stopped publishing it. Henley and Partners dropped its data provider, dropped the millionaire headcounts entirely, said it would no longer produce a precise count that the data does not support, and described current millionaire migration as modest. So is the exodus real? The honest answer: the famous number was never solid, but the direction of travel is, and the things that are actually verifiable, the non dom abolition, the Budget tax rises, where movers go when they do move, matter far more to your decision than any headline count. This guide separates the two.

The number everyone quotes

The Henley Private Wealth Migration Report 2025 projected that 16,500 dollar millionaires would leave the UK that year, the largest outflow it had recorded for any country in a decade of tracking, and roughly double the 9,500 it had projected for 2024. The number went everywhere: front pages, political speeches, a thousand LinkedIn posts, and the marketing of every relocation firm on the internet, including plenty pointing at Dubai.

The problem with the number

Two serious reviews took it apart. Tax Policy Associates ran a statistical and forensic review and concluded the reports could not be trusted: definitions changed while numbers did not, official data contradicted the underlying millionaire counts, and the methodology used no statistical controls. The Tax Justice Network made a simpler point: 16,500 people is about 0.63% of the UK's millionaire population, and the same publisher had previously described similar sized outflows as insignificant. A migration of less than one percent, they argued, is not an exodus in any meaningful sense.

What the publisher did next

In June 2026, Henley and Partners released its new report and quietly conceded the argument. The 2026 edition dropped New World Wealth, the data provider behind the old headcounts, removed the precise migration numbers altogether, and replaced them with a qualitative competitiveness framework. In its own words, it will no longer produce a precise count of movements that the data does not yet support, and it now describes millionaire migration as modest. The 16,500 figure you still see quoted daily belongs to a methodology its own publisher has abandoned.

What is actually verifiable

Strip away the contested headcount and a real story remains, built on things that are checkable:

  • The non dom regime is gone. Abolished from April 2025. The centuries old arrangement that made the UK a base for internationally mobile wealth ended, and the OBR itself built an assumption into its forecasts that a meaningful share of the wealthiest former non doms would leave.
  • The November 2025 Budget raised taxes on capital. Dividend, property and savings income taxes went up, thresholds stayed frozen, and a new charge on close company dividends lands from 6 April 2026. The direction for business owners is one way. Our UK exit tax guide covers the 20% settling up charge that nearly happened too.
  • The concentration risk is real for the Treasury. The wealthiest 1% paid 28.5% of all UK income tax in 2023/24 per House of Commons Library figures. It does not take an exodus to hurt; a few thousand of the right leavers is a fiscal event.
  • When wealth does move, the UAE has been the top destination. Henley's own reporting had the UAE as the leading destination for millionaire migration over the two years before the methodology change, and its 2026 report still treats it as the Gulf's principal wealth hub.

Why the movers keep choosing Dubai

The pull factors are not mysterious: no personal income tax on salaries, corporate tax at 0% up to AED 375,000 profit and 9% above, English as the working language, a seven hour flight to London, and residence processes measured in days rather than months. We have run the comparison against every alternative in our honest guide to tax free countries, and for working business owners it keeps ending in the same place. Two honesty notes we always attach: Dubai is not cheap to live in, and the FCDO currently warns of ongoing regional tensions and a risk of further attacks in the region, so check the live advice when planning travel.

The takeaway that survives the statistics

Whether 16,500 or 5,000 millionaires left last year changes nothing about your position. Population statistics are noise. Your own numbers are signal: what you pay HMRC now, what the same profit looks like through a UAE structure, what leaving properly costs, and what returning within five years would claw back. In our experience the Dubai structure starts to out earn the UK for owners from around £60,000 of annual profit, and it compounds from there. That is a calculation, not a headline, and it takes twenty minutes. Book a free call and we will run it with your real figures. None of this is tax advice; it is the map that tells you whether paying for the accountant is worth it.

FAQs

Are millionaires really leaving the UK?

Some are, and more are planning to, but the famous 16,500 figure was produced by a methodology its own publisher abandoned in June 2026, now describing millionaire migration as modest. The verifiable part is the policy driver: the non dom abolition and rising taxes on capital.

How many millionaires actually left the UK?

Nobody reliably knows, which is the honest answer the industry avoids. The former data provider's counts failed independent review, and the 2026 report publishes no headcount at all.

Where do wealthy UK leavers go?

The UAE has been the most cited destination in recent years, with Italy, Switzerland, Singapore and the Gulf more broadly also drawing UK wealth. For working business owners rather than retirees, Dubai dominates the shortlist.

Why are wealthy people leaving the UK?

The abolition of the non dom regime from April 2025, rising taxes on dividends, property and savings income, frozen thresholds, and the sense that the direction of travel points one way. Push factors, plus a destination seven hours away charging no tax on salaries.

Is the millionaire exodus exaggerated?

The headline numbers were. The underlying shift is not invented: the tax changes are real, the Treasury's dependence on top taxpayers is real, and the UAE's pull is real. Treat counts with suspicion and policy with attention.

Should I leave the UK?

Not because of a headline. Run your own numbers: current UK tax bill, the UAE equivalent, exit costs, and the five year return rules. If the gap is life changing, plan properly with regulated advice. Our leaving the UK checklist is the full sequence.

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References

This article is general information and commentary, not tax, legal or financial advice. Take regulated advice before acting on your situation.