Is a UK Wealth Tax on the Horizon?

Talk of a UK wealth tax is back in the headlines — and recent developments suggest this is no longer just political noise.

In the last few weeks, senior political figures and commentators have floated serious proposals to introduce a new tax on net wealth in the UK, aimed at narrowing the widening fiscal gap. While no formal legislation is in place yet, the direction of travel is clear — and for high-net-worth individuals (HNWIs), the window for proactive planning may be narrowing.

What Is a Wealth Tax?

Unlike income tax or capital gains tax, a wealth tax is a tax on what you own, not what you earn. That includes:

• UK and overseas property
• Investment portfolios
• Pension funds
• Shares in private companies
• Business ownership
• Collectibles, jewellery, and other personal assets

It’s a politically attractive idea — the optics of taxing the “super-rich” resonate with voters — but history shows that these taxes rarely work in practice.

Recent Proposals: What’s Being Suggested?

In July 2025, Lord Neil Kinnock publicly proposed a 2% annual wealth tax on individuals with more than £10 million in net assets. The idea, according to estimates, could raise around £10–11 billion per year from roughly 20,000 ultra-wealthy individuals in the UK.

Meanwhile, Downing Street has refused to rule out further taxes on the wealthy. The government is under pressure to plug a £30 billion fiscal hole, and Chancellor Rachel Reeves is under mounting pressure to explore new sources of revenue ahead of the Autumn Budget.

These proposals reflect a significant shift in tone from policymakers — and are making many affluent individuals rethink their UK position.

Thousands of HNWIs Are Already Leaving

According to recent financial press reports, over 16,000 HNWIs are expected to leave the UK in 2025 alone, taking an estimated $92 billion in investable assets with them. Since the scrapping of the UK’s non-dom regime and the announcement of the Long-Term Resident (LTR) tax changes, interest in relocating to low-tax jurisdictions such as Monaco, Switzerland, Dubai, and Italy has surged.

This is not hypothetical — it’s already happening. Private banks and wealth managers report a marked uptick in requests for emigration planning, trust restructuring, and offshore solutions.

If a formal wealth tax is introduced — even with a high threshold — this exodus is likely to accelerate further.

Capital Flight: A Proven Risk

History has shown us the impact of wealth taxes:

• France introduced a similar levy in the 1980s and lost over €200 billion in capital before dismantling the tax in 2018.
• Norway recently raised its wealth tax, prompting over 50 billionaires to leave in a single year.
• The UK could face a similar scenario if it becomes less attractive for global capital to stay.

And once wealth leaves — it rarely returns.

Key Points at a Glance

Why Expats and Globally Mobile Clients Should Pay Attention

While the proposed tax may start with a £10 million threshold, history suggests these levels tend to creep downward over time. And for those with ties to the UK — even if they live abroad — wealth taxes could still impact:

• UK residential or investment property
• Shares in UK businesses
• Family trusts with UK connections

You don’t have to live in the UK full-time to be caught by future changes — and that’s why planning ahead is essential.

What You Can Do Now

1. Clarify your residency and LTR status
   Are you likely to be classed as a Long-Term Resident from April 2025? If yes, your worldwide assets may be exposed to UK inheritance tax — and potentially to any wealth tax that follows.
2. Review your UK asset exposure
   Consider whether now is the time to restructure, gift, or relocate assets. UK property, in particular, is hard to shield from future changes.
3. Assess threshold risk
   Even if you’re below the £10 million level, planning makes sense. Once a mechanism is in place, lower thresholds could follow in future budgets.

Final thoughts

The idea of a UK wealth tax is no longer fringe — it’s now a live political issue. While some may dismiss it as unlikely, the growing exodus of HNWIs and the fiscal challenges facing the UK make it a credible risk.

If you are a UK-connected individual with significant assets, you will want to keep a close eye on how this plays out.

Thinking of moving abroad?

Visit our page on Financial Freedom Beyond Borders: Securing your financial future overseas