How Non-Dom Status Reforms Are Reshaping Expat Wealth Planning

The reform of non-dom status is one of the most significant changes to expat tax rules in many years, particularly in the UK. These reforms affect how foreigners and returning UK nationals manage their offshore income, trust structures, inheritance, and investment strategies. For expats and high net worth individuals, understanding these shifts is essential to effective wealth planning under the new regime.

What Changed — Key Reforms

As of 6 April 2025, the UK abolished its long-standing non-dom (“non-domiciled”) tax regime, along with associated advantages like the remittance basis of taxation. Under the old rules, non-doms paid UK tax only on foreign income or gains they “remitted” (brought) into the UK. Those living overseas could avoid UK taxation on income earned abroad unless it was brought into the country.

Under the new system:

• Domicile is no longer a determining factor for income tax and capital gains tax — all UK tax residents will be taxed on their worldwide income and gains regardless of where they originated.
• A new “Foreign Income & Gains” (FIG) regime offers a transitional benefit: people who become UK tax residents after being non-resident for a period (often 10 years) may get a 4-year exemption on foreign income and gains. During those 4 years, even if foreign funds are brought into the UK, the tax position is more favourable.
• A Temporary Repatriation Facility (TRF) allows individuals who previously used the remittance basis to bring in untaxed foreign income or gains at reduced tax rates for a limited period (2025-26, 2026-27, and 2027-2
• Trusts have lost many of their protective features: Protected trust / “protected settlement” rules are being abolished. Settlor income and gains from offshore trusts will now often be taxed if the settlor is a UK resident.
• Inheritance Tax (IHT) rules are shifting, too: long-term UK residents will be subject to IHT on worldwide assets after certain residency durations (for instance 10 out of previous 20 years), rather than only UK-based assets. The change moves toward a more residence-based IHT approach.

Impacts on Wealth Planning for Expats

These reforms force many expats and globally mobile individuals to rethink classic wealth management strategies. Here are some of the major implications:

1. Reduced appeal of offshore sheltering
   Under the old regime, offshore trusts, foreign bank accounts or foreign income generated assets overseas were often kept outside the UK tax net unless funds were remitted. With those protections diminishing or disappearing, keeping wealth outside the UK doesn’t offer the same advantages. Asset structures previously set up to exploit domicile or remittance rules may need revisiting.
2. Accelerated restructuring of assets
   Expats now have more urgency to review their existing holdings before the new rules take full effect. For example, making decisions about when to bring offshore income into the UK (using the Temporary Repatriation Facility), or rebasing asset values at appropriate dates.
3. Inheritance and estate planning become more complex
   With IHT subject to residency rather than domicile, the timing and location of assets—and even the residency of heirs—matter more. Where assets are held (in the UK, overseas, in trusts) and how long one has been a UK resident will influence tax exposure on death or transfers. Planning must account for possible tax on worldwide estates for long-term residents.
4. Greater importance of transitional regimes
   Tools like the FIG regime and Temporary Repatriation Facility offer limited windows where old benefits or softer tax treatment are still available. Strategic timing—such as becoming UK resident after a long period abroad, bringing in funds during the reduced-rate period—can make a big difference.
5. Choosing where to reside becomes part of tax strategy
   Because the new rules apply to all UK tax residents, regardless of domicile, decisions about physically residing in or moving out of the UK, or maintaining non-residency for certain years, take center stage. Some expats may explore country-alternatives that offer more favourable tax regimes (e.g. flat taxes, or different trust law).
6. Higher compliance burden and risk
   The new rules are more complex and will require careful documentation: how and when someone became resident, the value and origin of foreign assets, trust deeds, past and present remittances. Mistakes or delays could result in unexpected tax liabilities.

Strategic Responses & Options

Given these changes, expats should consider a number of planning responses:

• Early audit of offshore structures: Review all offshore trusts, accounts, investments; understand how they will be taxed under the new regime. Determine which structures might still provide benefit or need to be wound down.
• Use the FIG grace period wisely: If eligible, leverage the four-year foreign income & gains exemption to bring offshore income/gains into beneficial use, while considering timing of remittances and how they align with residency status.
• Consider alternate jurisdictions: For some ultra-high net worth individuals, relocating to countries with more favourable tax regimes may become more attractive. Many jurisdictions around Europe and elsewhere offer flat tax systems or tax incentives for wealthy expats.
• Estate-and inheritance-tax planning: Ensure wills, trusts, and asset ownership are structured to minimize IHT exposure. This might mean placing assets into trusts prior to long-term residency, or ensuring heirs are located or resident in more favorable jurisdictions.
• Maintain good records and professional advice: Because many of the new rules depend on past history (residency over previous years, prior non-residency, past remittances), having accurate documentation is critical. Legal and tax advice will be indispensable.

Challenges & Trade-Offs

Reform brings opportunities, but also costs and trade-offs:

• Loss of certainty: Many expats had structured their wealth plans around longstanding non-dom rules. The sudden removal of those rules forces renegotiation of many plans, with uncertainties about how courts or tax authorities will interpret transitional provisions.
• Possibility of capital flight or relocation: As seen in recent reports, some wealthy individuals are relocating in response to the reforms. That can mean loss of UK investment, donation, human capital.
• Potentially higher immediate tax bills: For those who bring in income or gains under old rules, or who have deferred taxation, there may be catch-up taxes, or exposure once the new rules apply.
• Complexity and cost of planning: Structuring to optimize under the new regime requires specialist legal/tax advice, sometimes cross-border, which comes with fees and complexity.

Conclusion: A New Normal for Expat Wealth Planning

Non-dom status reforms mark a major pivot in the UK’s tax landscape. They shift the paradigm from domicile-based privileges toward a residence-based tax regime, including for income, capital gains, trusts, and inheritance.

For expats, this means that many previously reliable tax strategies will no longer work the same way. Those who are proactive—structuring before the changes take full effect, using transition provisions, and considering domicile or residency alternatives—stand to preserve more of their wealth. On the other hand, those who delay risk being caught by the full force of the reforms.

In short, wealth planning in the post-non-dom era demands greater foresight, sharper timing, and often, willingness to rethink location, structures, and legacy plans. The reforms are reshaping the rules of the game—and for savvy expats, adapting fast is no longer optional but essential.