UK Non-Dom Changes 2025: Why High-Net-Worth Entrepreneurs Are Relocating to Dubai and Singapore

In 2025 the UK ended the non-dom remittance basis. Long-term residents now pay UK tax on worldwide income. Here is where people are moving.

UK non-dom tax changes 2025 relocation decisions are accelerating. The remittance basis has been abolished and replaced with a new Foreign Income and Gains regime that helps new UK arrivals but leaves long-term residents fully exposed to UK tax on their worldwide income. For high net worth entrepreneurs and business owners who built their UK lives under the old non-dom rules, this is a fundamental shift. Dubai and Singapore are the two destinations being looked at most seriously, but Portugal, Monaco, Switzerland, and Italy are also in the conversation for certain profiles.

UK domicile and UK residence are two separate legal concepts. They overlap in some areas but have entirely different meanings, different tests, and different tax consequences. Confusing them is one of the most common mistakes people make when trying to understand non-dom status and the 2025 rule changes.

UK Residence

UK residence is a year-by-year status determined by the Statutory Residence Test (SRT). It is based on how many days you spend in the UK and how many connection ties you have. Residence can start and stop from one tax year to the next. It is entirely about where you physically are and how you live, not about where you were born or where your family originates from.

UK residence determines whether you pay UK tax on your UK income. It also determines whether you are inside or outside the UK’s worldwide tax net once the remittance basis is no longer available to you.

UK Domicile

Domicile is a much older legal concept and it is more permanent. You are UK domiciled if the UK is the country you regard as your permanent home and the place you intend to return to indefinitely. Everyone is born with a domicile of origin, inherited from their father in most cases. Domicile of origin is typically very difficult to lose, even if you live abroad for many years.

A foreign national living in the UK, whose father was domiciled in India, is UK resident but not UK domiciled. That is the classic non-dom. They are here, they pay tax on UK income, but their domicile of origin is foreign. Before April 2025, that foreign domicile allowed them to use the remittance basis.

The 2025 reforms shifted the UK tax system away from domicile-based rules toward residence-based rules. The remittance basis, which depended on your domicile status, was abolished. The replacement Foreign Income and Gains regime depends on how long you have been UK resident, not your domicile. This is a fundamental change in how the system works.

Domicile still matters for UK inheritance tax. A UK domiciled individual pays UK inheritance tax on their worldwide assets. A non-UK domiciled individual pays UK inheritance tax only on UK-sited assets, though the deemed domicile rules can catch long-term UK residents. If you are leaving the UK specifically to escape IHT exposure on a large global estate, the domicile and deemed domicile rules need to be reviewed carefully alongside the residency-breaking plan.

The short version: residence is about where you are. Domicile is about where you belong, in the deepest legal and personal sense. The 2025 changes affect both, but in different ways. Understanding which concept applies to your specific question is the first step in any sensible planning conversation.

For many years, the UK’s non-dom rules allowed foreign nationals resident in the UK to choose the remittance basis of taxation. Under the remittance basis, you only paid UK tax on foreign income and gains if you brought them into the UK. Income kept offshore was not taxed. For people with significant overseas assets, overseas businesses, or investment portfolios, this was a material and entirely legal tax advantage.

From 6 April 2025, the remittance basis was abolished. The UK introduced the Foreign Income and Gains (FIG) regime in its place. The FIG regime gives qualifying new arrivals to the UK a four-year window during which their foreign income and gains are completely free of UK tax, with no remittance condition. They can bring the money to the UK freely during those four years.

The key point is this. The FIG regime is only available if you have not been UK tax resident in the previous 10 consecutive tax years. If you lived in the UK for the last 15 years under the remittance basis, you do not qualify. Your foreign income is now fully within the UK tax net from 6 April 2025 onwards.

The Statutory Residence Test governs when UK tax residency starts and stops. It is a day-count and connection-factor test, not a simple question of where you live or which passport you hold.

Under the SRT, if you spend 183 or more days in the UK in a tax year, you are automatically UK tax resident for that year. Below that, the number of days you can spend in the UK without becoming tax resident depends on how many UK “ties” you have.

The five UK ties are: (1) family tie, meaning a spouse, civil partner, or minor child resident in the UK; (2) accommodation tie, meaning you have a home available in the UK; (3) work tie, meaning you work in the UK for 40 or more days per year; (4) the 90-day tie, meaning you spent more than 90 days in the UK in either of the previous two tax years; and (5) the country tie, meaning the UK is the country where you spent most days in the tax year.

Someone who keeps a UK home, has a UK-resident spouse, and spent more than 90 days in the UK in the previous two years has at least three ties. That means they can only spend 45 days in the UK per year without becoming tax resident, regardless of where they are officially based.

Split-year treatment allows the tax year of departure to be divided into two parts: a UK resident part and a non-UK resident part. If it applies, you are only taxed as a UK resident for the portion of the year when you were actually resident.

Split-year treatment does not apply automatically. You must meet specific conditions, and the conditions differ depending on your circumstances. The most common scenario is someone who leaves the UK mid-year to take up employment abroad. HMRC determines whether split-year treatment applies based on when you ceased to meet the UK residence conditions.

Getting split-year treatment right in the year of departure is important. The tax exposure can be significant if the year is incorrectly categorised. UK tax advice from a qualified adviser should be obtained before the departure date, not after.

The Temporary Repatriation Facility (TRF) was introduced alongside the 2025 reforms to give former remittance basis users a transitional opportunity. It allowed certain pre-6 April 2025 foreign income and gains, which had been kept offshore under the remittance basis, to be designated and brought to the UK at a reduced tax rate.

The TRF rate was 12% for amounts designated in 2025/26 and 2026/27, rising to 15% in 2027/28. After that window closes, any remaining offshore income and gains that arose before April 2025 are not eligible for the reduced rate. They will be taxed at normal rates if brought to the UK.

The TRF was a one-time transitional relief. It does not apply to income or gains arising after 6 April 2025 and it is not available to people who do not have a history of using the remittance basis.

When deciding where to relocate, UK non-doms are weighing personal tax, capital gains treatment, residency access, lifestyle, and business infrastructure. Here is how the most common destinations compare.

The right destination depends on your personal circumstances, family situation, business base, and what you are trying to protect. Dubai is the strongest pure tax outcome. Singapore suits business-active entrepreneurs. Monaco and Switzerland suit ultra-high-net-worth individuals with European lifestyle preferences. Portugal and Italy offer EU access and lifestyle at the cost of higher tax complexity.

Zero Personal Tax

The UAE has no personal income tax and no capital gains tax. An entrepreneur who genuinely moves to Dubai and properly breaks UK tax residency pays no UAE tax on personal income, business profits extracted as salary or dividends, or investment gains. For individuals with high offshore income, this is the most complete outcome available.

Residency Options

The UAE offers several residency routes. The Golden Visa gives 10-year residency through property investment, business ownership, or professional qualifications. A standard employment or freelance visa provides a shorter-term residency option. Having UAE residency is a prerequisite for building a credible UAE tax residency position under the UK-UAE tax treaty.

Business Infrastructure

Dubai offers strong banking, a cosmopolitan business environment, and a growing community of entrepreneurs from all over the world. The UAE’s free zones, including DMCC, DIFC, IFZA, and others, provide established frameworks for holding companies, operating businesses, and investment structures.

Breaking UK Tax Residency: What You Actually Need to Do

Moving to Dubai does not automatically end UK tax residency. The Statutory Residence Test governs when UK tax residency starts and stops. It depends on day counts, tie-breaker conditions, and connection factors.

Someone who keeps a UK home, has close family in the UK, or spends more than the permitted number of days in the UK may still be UK tax resident despite having a Dubai address. Breaking UK tax residency properly requires a plan. The day count limits are tight, especially in the year of departure. UK ties need to be actively managed.

UK property: If you retain a UK property and it qualifies as accommodation available to you, it counts as a UK tie under the Statutory Residence Test. Selling the property before departure, or ensuring you genuinely relinquish access to it, is often part of the residency-breaking plan. Any gain on a UK residential property remains taxable in the UK regardless of your residency status.

UK trusts: The 2025 reforms significantly changed the treatment of offshore trusts settled by UK resident non-doms. Trusts, foundations, and offshore holding arrangements that relied on the remittance basis to protect trust income and gains from UK tax should be reviewed urgently. The rules are complex and the outcome depends on whether the settlor is still UK resident and when the trust was created.

UK pension or SIPP: UK pension income is generally taxable in the UK under most tax treaties, regardless of where you are resident. Moving to Dubai or Singapore typically does not eliminate UK tax on UK pension income. It may affect the tax treatment in your new jurisdiction, but you should confirm the treaty position with a specialist before drawing on any UK pension from abroad.

Singapore is the second most common destination being seriously considered, especially for entrepreneurs whose businesses have an Asia Pacific focus.

Singapore’s Tax Framework

Singapore taxes residents on Singapore-sourced income only. Foreign income received in Singapore is generally exempt if it has already been taxed in the source country at a rate of at least 15%. For many UK non-doms with existing offshore structures, Singapore’s territorial approach provides practical continuity.

Personal income tax in Singapore is progressive with a top rate of 24%. Capital gains are not taxed. There is no inheritance tax.

Is Dubai or Singapore Better for UK Non-Doms After Tax Changes?

It depends on what your business looks like. Dubai is the stronger outcome purely on personal tax. Zero income tax and zero capital gains tax is hard to beat for wealth preservation and investment income.

Singapore offers more structure. Strong institutional banking, regulatory credibility, a well-educated talent pool, and a business environment that is widely respected globally. The personal income tax rates are higher than Dubai but there is no capital gains tax and foreign income is largely exempt.

For pure wealth protection, Dubai wins. For entrepreneurs who need strong banking, regulated operations, and an Asia-facing business base, Singapore often makes more sense even if the personal tax advantage is smaller.

From 6 April 2025, UK resident individuals pay UK tax on all worldwide income, including income from overseas businesses. Income previously sheltered by the remittance basis is now taxable in the UK in the year it arises, whether or not it is brought to the UK.

If the business is held through a foreign company, the UK’s Controlled Foreign Company rules may apply if the structure is seen as an arrangement to keep income offshore artificially.

Existing structures that relied on the remittance basis to defer UK tax on accumulated offshore profits may need restructuring. Trusts, foundations, and offshore holding arrangements should all be reviewed in light of the April 2025 changes before the next UK tax year.

• Get UK tax advice before your departure date. The year you leave the UK is particularly sensitive under the Statutory Residence Test.
• Set up genuine residency in the new location, not just a visa. Real physical presence, a local address, and local ties that support your residency claim.
• Manage your UK day count carefully during and after the year of departure.
• Review offshore structures, trusts, and investments against both UK tax rules and the rules of your new jurisdiction.
• Set up banking in your new location before cutting UK ties. Both Dubai and Singapore have KYC-intensive account opening processes that take time.

CSG Advisory helps internationally mobile entrepreneurs structure the offshore side of their relocation properly, from company setup in Dubai or Singapore to banking and ongoing compliance: www.csgadvisory.com/services/company-registration/

The UK non-dom tax changes 2025 relocation wave is real. For entrepreneurs who built significant wealth under the remittance basis, the 2025 changes represent a material increase in UK tax exposure that can be legally addressed through proper relocation.

The key is doing it properly. A genuine move with real physical presence, properly managed day counts, appropriate offshore structures, and compliant banking creates a defensible tax position. A superficial move creates risk.

CSG Advisory helps UK non-doms relocating to Dubai and Singapore set up their company structure, residency pathway, and banking correctly from the start. If you are thinking about moving, speak with our team before you leave: www.csgadvisory.com/services/company-registration/