"High taxes are driving talent out of the UK" — it's a claim you hear regularly in political debates and newspaper editorials. But is it actually true? Are UK tax rates pushing skilled professionals to relocate abroad, and if so, does it actually matter for the rest of us? This guide examines the evidence on both sides.
UK tax rates in international context
The UK's top combined rate (income tax + NI) for employees is approximately 47% on earnings above £125,140 in 2026/27. For the self-employed, the combined rate is somewhat lower due to lower Class 4 NI rates. How does this compare internationally?
- France: top marginal rate of 45%, plus social charges taking the effective rate above 55%
- Germany: top rate of 45% (47.5% with solidarity surcharge)
- USA: varies by state — from 37% federal-only (Texas) to 50%+ (California, New York)
- Dubai/UAE: 0% income tax (but high living costs, visa restrictions, and limited public services)
- Singapore: top rate 24%, but very different cost profile
The UK sits in the middle of the pack for developed economies. It is not the highest-taxed country, but it is significantly above low-tax jurisdictions that attract mobile high earners.
The data on who is leaving
HMRC data shows a steady trickle of higher earners leaving the UK tax system, but the numbers are contested. Around 9,500 taxpayers earning over £150,000 left the UK in 2022/23. However, this represents less than 2% of that cohort, and many relocations are temporary or work-related rather than tax-motivated.
The tech sector has seen notable departures to lower-tax hubs like Lisbon (NHR scheme), Dubai, and Singapore. Finance professionals report increasing interest in Switzerland and the Channel Islands. But net migration of high earners remains positive — more high-earning professionals move TO the UK than leave each year.
Why people actually leave (beyond tax)
- Quality of life: climate, housing costs, commute times
- Career opportunities: specific industries cluster elsewhere
- Remote work: the pandemic normalised working from anywhere
- Non-dom changes: the abolition of non-dom status in 2025 particularly affected international finance professionals
- Family ties: returning to home countries or following partners
Tax is rarely the sole reason — but it can be the tipping point for someone already considering a move. The marginal decision-maker is the one who was 60% decided and finds that a £30,000 annual tax saving makes it 80%.
The counter-argument: why most people stay
Despite tax differentials, the UK retains several powerful advantages: the English language, the legal system, world-class universities, London's position as a global finance hub, the NHS (no health insurance premiums), proximity to family, cultural life, and established professional networks. For most people, the non-financial costs of relocating far outweigh the tax saving.
What it means for the average taxpayer
If high earners do leave in significant numbers, the tax base shrinks. The top 1% of earners pay approximately 29% of all income tax. If even a small fraction leave permanently, the shortfall must be made up by remaining taxpayers through higher rates or reduced services. This is the core argument for keeping rates competitive — not sympathy for the wealthy, but pragmatism about who funds public services.
The Laffer Curve in practice
The Laffer Curve suggests there is a tax rate beyond which raising rates actually reduces revenue (because people change behaviour). HMRC's own analysis estimated the revenue-maximising top rate is between 45% and 55%. The UK is arguably near the top of this range. This doesn't mean rates should be cut — but it does mean further increases may not raise the revenue projected.
Check your own position
Use the income tax calculator to see your effective tax rate. You might be surprised to find that even at £100,000, your average rate (not marginal rate) is far lower than headlines suggest. For context on how frozen thresholds affect you, see our guide on fiscal drag.