Britain is relying on an increasingly narrow base to fund its public services. According to new analysis from the Centre for Economics and Business Research, just 0.87% of adults in the UK now shoulder an extraordinary 38% of all income tax.
These individuals, fewer than one in a hundred, are expected to contribute £125 billion to Treasury coffers this year alone.
They are the backbone of the country’s tax system. But how much longer will they carry the weight?
With fresh fiscal proposals on the table and more expected, many of these top earners are starting to question their future in the UK.
That shift in mindset—subtle at first, then more determined—is now gaining momentum.
The quiet truth is that many already have options, both personal and professional, beyond British borders, and growing numbers are beginning to explore them seriously. The latest Budget measures, including the planned abolition of non-dom status and proposed changes to capital gains and inheritance tax exposure, have accelerated those discussions. For internationally mobile individuals, the UK is beginning to look less like a strategic base and more like a financial drag.
This shift may not be dramatic at first, but it’s deeply consequential. As the country becomes less competitive in terms of personal taxation, more globally connected individuals are reassessing where their wealth, businesses and families will thrive over the long term. Recent data points to a surge in enquiries from high-net-worth individuals considering a move abroad.
Many of these people aren’t acting out of frustration, but out of prudence. For them, it’s about preserving capital, maintaining flexibility, and ensuring that their contribution is met with value, not just extraction.
The government’s message, intentional or not, is clear: the fiscal burden will increasingly fall on those who already pay the most.
The danger is that this approach proves counterproductive—pushing out the very people whose contributions sustain public services and fuel economic dynamism.
Policymakers appear willing to gamble that most high earners will stay, tolerate higher taxes, and continue to invest in the UK. That may be true for some. But many others will make a rational choice to relocate to jurisdictions with more stable, predictable and efficient tax regimes—particularly when they already own property, operate companies or have family links abroad.
The removal of the non-dom regime sends a particularly strong signal. For decades, it has been a key part of the UK’s appeal to globally mobile professionals. Its planned abolition is seen not as reform, but as retreat—a departure from the UK’s long-standing identity as a hub for international wealth and talent.
It’s not just those living in the UK who are affected. British expats with pensions, property, or investments tied to the UK are also facing new exposure to tax risk.
For this group, the financial case for maintaining strong ties to Britain becomes harder to justify with every policy change.
The global competition for capital and talent has never been more intense. Other jurisdictions are already capitalising on the UK’s policy direction—offering clear incentives to attract those reconsidering their future here. In many cases, the infrastructure to move is already in place. The question becomes one of timing and execution.
While it may not yet be a flood, the movement is real—and it’s growing. Those at the centre of it are not reckless. They are measured, strategic and forward-looking. And increasingly, they are planning for life beyond the UK’s borders.
No one wants to see Britain lose its most dynamic contributors. But unless the direction of travel shifts, it’s difficult to see how the country can maintain its fiscal strength or its appeal as a magnet for ambition.
For those who find themselves in this top 0.87%, now may be the time to pause and ask: am I still in the right place for my future?
