The Non-Dom Sunset: Planning Your UK Tax Exit in 2026

To effectively navigate the UK non-dom sunset, Resident Non-Domiciled (RND) individuals must prepare for the transition to a residence-based tax system starting 6 April 2025. Comprehensive planning for a UK tax exit involves accelerating offshore income distributions, restructuring excluded property trusts, and assessing alternative jurisdictions before the full impact of the new regime takes hold in 2026.

Key Takeaways

• Abolition of Status: The remittance basis of taxation will be replaced by a four-year foreign income and gains (FIG) regime on 6 April 2025.
• Inheritance Tax (IHT) Exposure: The current "excluded property" status for overseas assets held in trusts will shift to a residence-based model, potentially exposing global estates to 40 percent UK IHT.
• Temporary Repatriation Facility (TRF): A multi-year window will allow for the remittance of previously shielded overseas income at a reduced tax rate.
• Global Alternatives: Jurisdictions such as Italy, Switzerland, and Greece are seeing an influx of enquiries as HNWIs evaluate more stable fiscal environments.

Why is the UK non-dom regime ending?

The UK Government, following the 2024 Spring Budget and subsequent policy affirmations from the current administration, has determined that the 200-year-old non-domiciled status no longer aligns with modern fiscal principles. By removing the distinction between domicile and residence, the Treasury aims to simplify the tax code and generate an estimated 2.7 billion GBP in additional annual revenue by 2028. For the global elite, this marks the end of an era where foreign-sourced income could remain untaxed in the UK indefinitely, provided it was not remitted.

What are the core changes coming in 2025 and 2026?

From April 2025, the "Remittance Basis" is repealed. New arrivals to the UK will benefit from a 100 percent tax exemption on foreign income and gains for their first four years of tax residence, provided they have been non-resident for the preceding ten years. However, for those already resident in the UK for more than four years, the cliff edge is steep.

Under the new proposals, individuals who have been resident in the UK for more than four years will pay UK tax on their worldwide income and gains. Furthermore, the 15-year rule for Inheritance Tax is being replaced. Once an individual has been resident in the UK for 10 years, they will likely fall within the scope of UK IHT on their worldwide assets. Crucially, even after leaving the UK, individuals may remain within the IHT net for up to 10 additional years, creating a "tail" of liability that complicates tax exit strategies.

How does the 10-year IHT tail affect exit planning?

Perhaps the most controversial aspect of the UK non-dom sunset planning is the proposed 10-year tail for Inheritance Tax. Previously, an individual could lose their "deemed domicile" status for IHT purposes by spending three or four years outside the UK. Under the 2026 framework, if you have been a UK resident for a significant period (proposed at 10 years), your global estate remains subject to 40 percent UK IHT until you have been non-resident for a full decade.

This makes early planning essential. Individuals considering a move to Dubai, Singapore, or Monaco must factor in this decade-long shadow of the UK taxman. If an individual passes away within 10 years of leaving, the UK HMRC may still claim a significant portion of their global wealth, regardless of their new residency.

Comparison of Key Tax Regimes for Expatriated Non-Doms

What should be in your UK tax exit checklist?

Successful UK non-dom sunset planning requires a methodical approach to asset restructuring. It is not merely about booking a flight; it is about severing ties in a manner that HMRC recognises as a genuine change of tax residence.

1. Review of Settlor-Interested Trusts

Historically, non-doms used offshore trusts to shield assets from IHT. The new rules suggest that "Excluded Property" status will be removed for many of these structures. Trustees must now evaluate whether to distribute assets, wind up the trust, or relocate the trust's management to align with the settlor's new residency.

2. Utilising the Temporary Repatriation Facility (TRF)

For those with vast sums of unremitted foreign income, the TRF offers a strategic window. While the specific rate is subject to final legislative confirmation, it is expected to allow individuals to bring capital into the UK at a rate significantly lower than the standard 45 percent income tax rate. This liquidity can then be used for UK-based investments or to fund the costs of relocation.

3. The Statutory Residence Test (SRT)

To exit the UK tax net, one must satisfy the SRT. This involves more than just counting days. It requires a reduction in "ties" to the UK, such as available accommodation, work commitments, and family location. In 2025 and 2026, HMRC is expected to increase scrutiny on HNWIs who claim to have left but maintain significant footprints in London or the Home Counties.

Where are UK non-doms moving?

Data from investment migration consultancies suggest a pivot toward Southern Europe and the Middle East. Italy’s Neo-Resident regime, despite the recent increase of the flat tax from 100,000 EUR to 200,000 EUR, remains highly attractive for billionaires. Meanwhile, the UAE continues to see a surge in British-based families due to the zero-tax environment and the ease of obtaining a Golden Visa through property investment.

Switzerland remains the bastion for those seeking privacy and stability, though the entry requirements for non-EU/EFTA nationals remain stringent. For those who wish to remain closer to London time zones, Monaco offers a no-income-tax environment, provided the individual can satisfy the significant residency and property requirements of the Principality.

How to handle the transition of business interests?

If you own a UK-based business, exiting involves managing Capital Gains Tax (CGT). Moving abroad can trigger "exit taxes" or affect the eligibility for Business Property Relief (BPR). It is vital to consult with a qualified tax advisor to determine if your shares should be held through a foreign holding company or if a pre-exit sale is more tax-efficient.

Conclusion: The urgency of 2026

The transition period between now and April 2026 is the most critical window for UK non-doms in decades. Doing nothing is effectively a choice to be taxed on a worldwide basis at some of the highest rates in the G7. By beginning your UK non-dom sunset planning now, you can protect your family's global wealth and choose a jurisdiction that offers a more predictable fiscal future.

Frequently Asked Questions

Q: When exactly does the non-dom status end? A: The current non-dom regime is scheduled to end on 5 April 2025, with the new residence-based system taking effect on 6 April 2025. Certain transitional provisions will apply through 2026.

Q: What happens if I have lived in the UK for over 15 years? A: You are likely already "deemed domiciled" under current rules. The new system will focus on your years of residence. If you have been resident for more than 10 years, your worldwide assets will fall into the UK IHT net.

Q: Can I avoid the 10-year IHT tail? A: Avoiding the tail requires becoming non-UK resident and remaining so for a full 10 consecutive years. Strategic planning involving trust distributions and life insurance might mitigate some of the financial impact during this period.

Q: Is there any benefit to staying in the UK under the new rules? A: The new 4-year FIG regime is actually more generous than the old non-dom rules for new arrivals, as it allows for 100 percent tax-free remittances of foreign income. However, it only lasts for four years, making it a short-term incentive rather than a long-term wealth preservation strategy.

Q: Should I sell my UK property before I leave? A: This depends on your long-term goals. While owning UK property does not automatically make you a tax resident, it counts as a "tie" under the Statutory Residence Test. Selling can simplify your exit, but it may also trigger significant CGT if value has appreciated significantly.

Disclaimer: This article is for informational purposes only and does not constitute legal, tax, or financial advice. Readers should consult with a qualified tax professional regarding their specific circumstances before making any decisions related to UK tax residency or asset restructuring.