Non-Dom Abolished: What UK Expats in Asia Must Do Now

If you've spent years building a life in Singapore, Hong Kong, or anywhere else in Asia while keeping one foot in the UK tax system, the ground just shifted under you. The non-dom regime, a fixture of UK tax law for more than two centuries, no longer exists. According to spicetaxation.com, a UK tax advisory firm working extensively with expats across Asia, the volume of questions from clients trying to work out whether they're better off, worse off, or simply confused by the new rules has been steady since the change took effect. The honest answer is that it depends entirely on your personal timeline, and that timeline now matters more than it ever did before.

This isn't a minor tweak to an obscure tax rule. It's a full replacement of the system that determined how foreign income and gains were taxed for anyone living in the UK without being domiciled there. The old regime allowed UK resident individuals whose permanent home was outside the UK to shield their foreign income and gains from UK taxation unless that money was brought into the country. That protection is gone, and a new residence-based framework has taken its place. Understanding exactly what changed, and what it means for your specific situation, is the first step toward making sensible decisions before deadlines catch up with you.

What Actually Changed on 6 April 2025

The non-dom regime was abolished in the 2024 Autumn Budget, with the changes taking effect from 6 April 2025. In its place, a new Foreign Income and Gains (FIG) regime now applies to internationally mobile individuals, replacing the remittance basis that non-UK domiciled residents relied on for generations.

Under the old system, your domicile status, a concept rooted in where your permanent home was considered to be, determined your tax exposure. Under the new system, your residence history does the work instead. That's a fundamental shift in logic, and it changes how expats need to think about their affairs.

The New FIG Regime, Explained Simply

The FIG regime is designed to be more straightforward than what it replaced, at least on paper. Individuals no longer need to keep their foreign income and gains offshore to avoid UK tax, since the new regime works on a different basis entirely.

Here's who actually qualifies and how it works:

Ten-year rule: The regime applies to individuals who become UK tax resident after having spent at least ten consecutive prior tax years as a non-UK resident, so long-term expats returning after a decade abroad are the primary beneficiaries.
Four-year window: Qualifying individuals can use the FIG regime for four years starting from 6 April 2025, or from the first tax year they become UK resident if that's later.
No remittance restrictions: During those four years, foreign income and gains stay exempt from UK tax even if the money is physically brought into the UK, unlike the old remittance basis, which taxed you the moment funds landed in a UK account.
One-time use: The clock runs for the year of arrival plus three more years, and once that four-year window closes, you're taxed on worldwide income and gains like any other UK resident. The regime cannot be re-claimed by leaving and returning later.
Partial eligibility for recent arrivals: If you became UK resident less than four years before 6 April 2025, you can still use the FIG regime for whatever portion of the four-year term remains.

Inheritance Tax: From Domicile to Residence

The reforms don't stop at income and capital gains. Inheritance tax has been rebuilt around the same residence-based logic. Starting 6 April 2025, the UK moved from a domicile-based inheritance tax system to a residence-based one, meaning whether your non-UK assets fall within the scope of UK IHT now depends on whether you count as a "long-term resident," rather than where your domicile was historically considered to be.

For expats in Asia who assumed their overseas assets were permanently outside UK inheritance tax's reach because of a foreign domicile, this is worth flagging to a specialist. Residence history, not domicile, now drives the outcome, and that history follows you even after you've left the UK.

Transitional Relief: The Temporary Repatriation Facility

For anyone who was already using the remittance basis before the change, there's a bridge available, but it's time-limited. The Temporary Repatriation Facility allows pre-6 April 2025 foreign income or gains to be brought into the UK at a reduced tax rate, but only for a three-year window. After that window closes, the reduced rate disappears along with the opportunity.

Old Regime vs New Regime at a Glance

Basis of taxation: Old system used domicile status; new system uses residence history and years spent outside the UK.
Offshore income treatment: Old system taxed foreign income only when remitted to the UK; new system exempts it entirely during the FIG window, remitted or not.
Duration of relief: Old system could last up to fifteen years before deemed domicile applied; new system caps relief at a strict four years.
Inheritance tax exposure: Old system linked IHT to domicile; new system links it to long-term residence status.
Renewability: Old system had gradual tapering; new FIG regime cannot be reclaimed once used, even after leaving and returning to the UK.

What This Means If You're Based in Singapore, Hong Kong, or Elsewhere in Asia

If you've been outside the UK for years and have no immediate plans to return, the FIG regime may not affect your day-to-day tax position much, though your UK-source income and any UK property remain firmly within HMRC's reach regardless of where you live. Where this becomes genuinely urgent is for three groups: expats considering a return to the UK after a long stint abroad, those who were already claiming the remittance basis and now need to think about the Temporary Repatriation Facility before it expires, and anyone with significant non-UK assets who assumed inheritance tax was no longer their problem.

Each of these situations has a real deadline attached, and the rules are unforgiving about missed windows. Split-year treatment, residency timing, and the interaction between the Statutory Residence Test and the new FIG regime all need to be mapped out carefully rather than assumed.

Your Next Move as a UK Expat Abroad

The abolition of the non-dom regime isn't a reason to panic, but it is a reason to stop assuming your old tax planning still applies. Rules that governed your affairs five years ago may no longer reflect reality, and the cost of getting the timing wrong on the FIG regime or the Temporary Repatriation Facility can be significant given how strict the four-year and three-year windows are. If you've been putting off a proper review of your UK tax position, this is the moment to do it, before the transitional reliefs that currently soften the blow disappear for good.