Living in the UAE does not automatically remove your exposure to UK Inheritance Tax. HMRC's IHT rules follow the concept of domicile - not residency - meaning that many British expats in the Gulf remain within the UK IHT net regardless of how long they have lived abroad. This guide explains how IHT applies to UAE-based expats, what the key thresholds and reliefs are under current UK law, and what planning steps are worth discussing with a qualified cross-border adviser.
Key takeaways
- -UK Inheritance Tax is governed by the Inheritance Tax Act 1984. Liability is determined primarily by your domicile status, not your country of residence.
- -A UK-domiciled individual is subject to IHT on their worldwide estate. A non-domiciled individual is generally subject to IHT only on UK-sited assets.
- -The UAE has no estate or inheritance tax on assets held within the country, but this does not shield UAE-held assets from UK IHT if you remain UK-domiciled.
- -There is no UK-UAE double taxation treaty covering Inheritance Tax, so the two regimes must be considered separately. Consult a tax adviser to understand how both sets of rules apply to your estate.
What Is UK Inheritance Tax and Who Does It Affect?
UK Inheritance Tax (IHT) is a tax on the transfer of value from a deceased person's estate to their beneficiaries. It is governed principally by the Inheritance Tax Act 1984 (IHTA 1984). HMRC administers the tax and publishes guidance in its Inheritance Tax Manual (IHTM), which is publicly available on GOV.UK.
The critical point for UAE-based expats is that IHT liability is determined by domicile, not by where you live or pay income tax. A person who is UK-domiciled - or deemed UK-domiciled under rules set out in IHTA 1984, section 267 - is liable to IHT on their entire worldwide estate. Someone who is not UK-domiciled is generally liable only on assets situated in the UK.
This distinction matters enormously for expats in the Gulf. Simply relocating to Dubai or Abu Dhabi does not sever your UK domicile. Domicile is a concept rooted in English law and relates broadly to the country you regard as your permanent home. Changing domicile requires deliberate and demonstrable steps, and HMRC will scrutinise evidence carefully. Consult a tax adviser with specific expertise in cross-border domicile matters before assuming your domicile has changed.
Domicile and Deemed Domicile: The Rules That Matter Most
Under general law, every individual has a domicile of origin - normally inherited from their father at birth under UK common law principles. This domicile persists until a domicile of choice is acquired. To acquire a domicile of choice, a person must reside in a new country with the intention of remaining there permanently or indefinitely. Both elements - physical presence and settled intention - must be satisfied.
In addition to general-law domicile, IHTA 1984, section 267 introduces a concept of deemed domicile for IHT purposes. Under the version of these rules in force following the Finance Act 2017, an individual is deemed UK-domiciled for IHT if they have been resident in the UK for at least 15 of the 20 tax years immediately before the relevant year. This rule can capture long-term British nationals who have only recently moved to the Gulf. The specific conditions are set out in HMRC's IHTM guidance and should be reviewed carefully with a qualified adviser.
A separate deemed-domicile rule under IHTA 1984, section 267 previously also captured individuals who had UK domicile at any point in the three years before death or a chargeable transfer. The interaction of general-law domicile, deemed domicile, and the 15-of-20-year residence test can produce complex outcomes. Do not assume that spending a tax year outside the UK resets any of these clocks. Consult a tax adviser.
IHT Thresholds, Nil-Rate Band, and Key Reliefs
HMRC sets the standard nil-rate band (NRB) - the threshold below which no IHT is charged - by statute. The current NRB figure, and any applicable residence nil-rate band (RNRB) figure, are published on GOV.UK and updated by Parliament. You should verify the current figures directly on GOV.UK or via HMRC's IHT guidance, as these amounts can change with fiscal events. Above the applicable threshold, the standard IHT rate is set by Parliament and published on GOV.UK.
Transfers between spouses or civil partners who are both UK-domiciled are generally exempt from IHT under IHTA 1984, section 18. However, where one spouse is non-UK-domiciled, a different and more limited exemption applies. If you are UK-domiciled and your spouse is UAE-domiciled - or vice versa - the inter-spouse exemption rules work differently and can produce unexpected results. A cross-border tax adviser should model both scenarios for your estate.
Business Property Relief (BPR) and Agricultural Property Relief (APR) are statutory reliefs that can reduce the IHT value of qualifying assets, in some cases significantly. The rules for BPR are set out in IHTA 1984, sections 103-114 and the rules for APR in sections 115-124. Whether assets held through UAE corporate structures or free-zone entities qualify for BPR is a technical question that depends on the nature of the business and the form of ownership. Consult a tax adviser before relying on either relief.
Gifts made during your lifetime - known as potentially exempt transfers (PETs) under IHTA 1984, section 3A - can fall back into your estate for IHT purposes if you die within seven years of making the gift. The rules governing failed PETs and the taper relief that applies between three and seven years are set out in IHTA 1984 and HMRC's IHTM. Gifting strategies require careful advice; do not implement them without guidance from a qualified adviser.
UK-Sited Assets: What Falls Inside the IHT Net
Even if you successfully acquire a non-UK domicile, your UK-sited assets will remain within scope of IHT. HMRC's IHTM sets out the situs rules that determine where an asset is located for IHT purposes. UK residential and commercial property is the most obvious example. UK-registered shares, UK bank accounts, and debts owed to you that are governed by English law are further examples of assets that HMRC treats as UK-sited.
UK residential property held through offshore structures was brought within the scope of IHT by the Finance Act 2017. Before that change, some non-domiciled individuals held UK property through offshore companies to exclude it from their IHT estate. That planning route is no longer available in most cases. If you hold UK property through any structure, consult a tax adviser to confirm its IHT treatment under current rules.
UAE-sited assets - such as property registered in the UAE, bank accounts held with UAE banks, and shares in UAE-incorporated companies - are not UK-sited for IHT purposes. For a non-UK-domiciled individual they would generally fall outside the UK IHT net. However, the UAE does not itself levy an inheritance or estate tax at federal level. The distribution of UAE assets on death is governed by a separate legal framework, including rules around succession that may differ significantly from UK law. Taking advice in both jurisdictions is important.
No UK-UAE Inheritance Tax Treaty: What This Means for Your Estate
The UK and the UAE do not have a bilateral double taxation treaty covering Inheritance Tax or estate duties. HMRC publishes a list of the countries with which the UK has estate duty conventions; the UAE does not appear on that list as at the time of writing. You should verify the current treaty position directly on GOV.UK.
The absence of a treaty means there is no automatic mechanism to relieve double taxation if, hypothetically, two jurisdictions both sought to tax the same asset on death. In practice, the UAE does not impose an estate or inheritance tax at the federal level, so double taxation in the traditional sense is unlikely to arise between the UK and UAE on most assets. However, the absence of a treaty also means there is no formal framework governing information exchange for IHT purposes between the two countries.
Expats who hold assets in multiple jurisdictions - for example, UK property, UAE property, and assets in a third country - may face the interaction of several legal systems on death. Each jurisdiction's rules on succession and taxation apply independently. A cross-border estate planning adviser who is qualified in both UK law and familiar with UAE legal frameworks can help you map those interactions before they become a problem for your beneficiaries.
UAE Succession Law: A Separate but Parallel Consideration
UAE succession law is a distinct matter from UK IHT but is directly relevant to expats planning their estates. Under UAE federal law, the distribution of assets of a deceased person may be governed by Sharia principles unless alternative arrangements are made. For non-Muslim expats, the UAE introduced a civil personal status law in 2023 for non-Muslims resident in Abu Dhabi, and the UAE as a whole has mechanisms by which non-Muslim expats can register wills to specify how their UAE assets are distributed.
The DIFC Wills Service Centre in Dubai and the Abu Dhabi Judicial Department both offer will registration services for non-Muslim expats. These services operate under their respective legal frameworks and allow expats to apply their home-country succession preferences to UAE-sited assets. These are entirely separate from UK IHT and do not affect your UK tax position. However, coordinating your UAE will with your UK will and overall estate plan is a practical necessity. Consult a lawyer qualified in UAE law for the succession side and a UK tax adviser for the IHT side.
The interaction between a UAE will, a UK will, and the IHT position can be complex where assets span both jurisdictions. For example, a UK will may deal with UK assets in a tax-efficient way while a UAE will handles UAE-sited assets under UAE legal frameworks. Ensuring the two documents do not conflict and that executors understand their obligations under both systems requires specialist cross-border advice.
Practical Planning Steps and When to Take Action
The starting point for any UAE expat with potential UK IHT exposure is a clear picture of your domicile position. This requires a documented analysis of your domicile of origin, whether you have taken steps toward a domicile of choice, and whether the deemed-domicile rules under IHTA 1984, section 267 apply to you. Do not self-assess this; the consequences of getting it wrong can be material for your beneficiaries. Consult a qualified cross-border tax adviser.
Once your domicile position is established, a schedule of your worldwide assets - identifying which are UK-sited and which are not - will allow a qualified adviser to estimate your potential IHT exposure. From there, an adviser can identify which statutory reliefs are available, whether lifetime planning steps such as PETs are appropriate, and how your will structure can be aligned with your IHT position.
If you are considering returning to the UK after a period in the UAE, the IHT implications of your return date matter. Your deemed-domicile status may be affected by the pattern of your UK residence across the relevant 20-year window. Planning a return to the UK without first understanding the IHT consequences is a common and avoidable oversight. Consult a tax adviser before committing to a return date.
Expats who are UK nationals but have been in the Gulf for a significant period should also confirm whether any UK assets - including pension rights, property, and financial accounts - are correctly identified in their estate planning documents. HMRC's IHT400 form and associated schedules, which personal representatives must complete when administering a UK estate, require a detailed account of all worldwide assets if the deceased was UK-domiciled. Making sure your records are organised and your representatives are informed is a practical step you can take now.
Frequently asked questions
- Does moving to the UAE mean I no longer pay UK Inheritance Tax?
- Not automatically. UK Inheritance Tax liability is determined by domicile, not residence. If you remain UK-domiciled - or are deemed UK-domiciled under IHTA 1984, section 267 - your worldwide estate remains within scope of UK IHT regardless of where you live. Consult a tax adviser to establish your domicile position.
- Is there a double tax treaty between the UK and UAE covering Inheritance Tax?
- No. As at the time of writing, the UK and UAE do not have a bilateral treaty covering Inheritance Tax or estate duties. You should verify the current position on GOV.UK. The absence of a treaty means there is no formal relief mechanism if both countries were to claim tax on the same asset, though in practice the UAE does not levy a federal inheritance or estate tax.
- Are my UAE bank accounts and property subject to UK IHT?
- UAE-sited assets such as UAE bank accounts and UAE-registered property are not UK-sited assets for IHT purposes. If you are non-UK-domiciled, they would generally fall outside the UK IHT net. However, if you remain UK-domiciled or deemed UK-domiciled, your worldwide estate - including UAE assets - is subject to UK IHT. Consult a tax adviser to confirm your domicile status.
- What is deemed domicile and could it apply to me?
- Deemed domicile is a statutory concept introduced by IHTA 1984, section 267. In broad terms, an individual can be treated as UK-domiciled for IHT purposes if they have been resident in the UK for at least 15 of the 20 tax years before the relevant year, even if they have lived abroad for several years. The precise conditions are set out in HMRC's IHT Manual on GOV.UK. Consult a qualified tax adviser to assess whether this rule applies to you.
- Do I need a separate will for my UAE assets?
- Having a will that clearly covers your UAE-sited assets is an important step, but the appropriate structure depends on your personal and legal circumstances. The DIFC Wills Service Centre and the Abu Dhabi Judicial Department both provide will registration services for non-Muslim expats in the UAE. Consult a lawyer qualified in UAE law for succession planning and a UK tax adviser for the IHT implications of your overall estate structure.
- Can I reduce my IHT exposure through lifetime gifts?
- Gifts made during your lifetime may qualify as potentially exempt transfers (PETs) under IHTA 1984, section 3A, and fall outside your estate if you survive seven years after making the gift. However, failed PETs - where you die within seven years - are brought back into your estate. Lifetime gifting strategies require careful planning and should not be implemented without advice from a qualified tax adviser.
- If I am planning to return to the UK, does the timing matter for IHT?
- Yes. Your pattern of UK residence affects the deemed-domicile calculation under IHTA 1984, section 267, which uses a 15-of-20-year residence test. The tax year in which you return to the UK may affect when you re-enter deemed-domicile status. Planning a return without first understanding the IHT consequences is an avoidable risk. Consult a tax adviser before committing to a return date.
Official sources and further reading
- HMRC: Inheritance Tax overview (GOV.UK)
- HMRC Inheritance Tax Manual (IHTM)
- Inheritance Tax Act 1984 (legislation.gov.uk)
- Finance Act 2017 - deemed domicile and offshore property changes (legislation.gov.uk)
- HMRC: Domicile and IHT (IHTM13000 series)
- DIFC Wills Service Centre
- Abu Dhabi Judicial Department - Wills and Estates
- HMRC: UK double taxation conventions (estate duty)