Inheritance Tax has long been one of the most controversial parts of the UK tax system, and for expats, it has become even more complex following recent reforms. By 2026, the rules governing who falls into the UK inheritance tax net look very different from how they did just a few years ago. For British expats who have lived abroad for a long period and do not plan on returning to the UK, these changes create both risks and opportunities, depending on how well they are understood and
planned for.
At the heart of the reform is a fundamental shift away from the old concept of domicile and towards a system based primarily on residence. This change has removed some historic planning strategies, but it has also created a clearer framework for long-term expats who structure their lives and investments offshore.
If you would like advice on inheritance tax and planning as an expat, please book a discovery call with me.
Helpful blogs I have written previously on inheritance tax for expats:
- Inheritance Tax For UK Expats
- Mitigating Inheritance Tax: Strategies for British Expats
- British Inheritance Tax Planning for Expats in Thailand
The Move from Domicile to Residence
Before April 2025, inheritance tax was largely driven by whether someone was considered UK-domiciled or deemed domiciled. For many expats, particularly those who left the UK early and built wealth abroad, this allowed foreign assets to sit outside the UK inheritance tax net. That system has now effectively been dismantled.
From 2025 onwards, inheritance tax is determined by whether an individual is classed as a long-term UK resident. The test is relatively straightforward in principle: if someone has been a UK tax resident for ten out of the previous twenty tax years, they are treated as a long-term resident. If they die while meeting this test, their worldwide assets fall within the scope of UK inheritance tax. If they do not meet the test, only UK-situated assets are generally subject to inheritance tax.
This distinction is critical for expats in 2026. Many British nationals who left the UK more than ten years ago and have remained genuinely non-resident may now find that their offshore assets sit entirely outside the UK inheritance tax system. Conversely, those who move back to the UK, or spend sufficient time there to rebuild residence history, can quickly find themselves pulled back into the full UK tax net.
Why Long-Term Non-Residence Matters So Much
For expats who have lived outside the UK for more than a decade and do not plan on returning, non-residence itself is one of the most powerful inheritance tax mitigation tools available. Under the current rules, remaining outside the UK long enough means that overseas assets, including offshore investment portfolios, foreign property, and international pensions, may not be subject to UK inheritance tax at all.
This does not require aggressive planning or complex structures. In many cases, it is simply the result of living and investing abroad consistently, while avoiding accidental UK tax residence. However, this is also where many expats make mistakes. Extended visits to the UK, assumptions about residency, or poor record-keeping can inadvertently push someone back into UK tax residence, resetting the clock and exposing their global estate to inheritance tax.
For those who are certain they will not return to the UK permanently, maintaining clear non-resident status is often the foundation upon which all other inheritance tax planning rests.
Understanding the Current Inheritance Tax Thresholds
Despite frequent political debate, the core inheritance tax thresholds remain unchanged in 2026. Every individual has a standard nil-rate band of £325,000, meaning the first £325,000 of an estate can pass free of inheritance tax. In addition, there is a residence nil-rate band of £175,000 where a main home is left to direct descendants, potentially increasing the tax-free allowance to £500,000 per person.
These thresholds have been frozen for several years, and in real terms, their value has been eroded by inflation. As asset values rise, more estates are gradually being drawn into inheritance tax, even where no dramatic increase in wealth has occurred.
For expats, it is important to note that these allowances only apply to assets that actually fall within the UK inheritance tax net. If offshore assets are excluded due to long-term non-residence, the nil-rate bands become far less relevant, while UK-based assets such as property or UK investment accounts remain fully exposed.
See current thresholds on the Government website: How Inheritance Tax works: thresholds, rules and allowances: Overview – GOV.UK
UK Assets Remain a Key Risk Area
Even for long-term expats, UK-situated assets continue to attract inheritance tax. UK property is the most common example, but UK shares, bank accounts, and certain pensions can also fall within scope.
This is where many expats face a disconnect between perception and reality. It is not uncommon for someone to have lived abroad for twenty years, assumed they are fully outside the UK tax system, yet still hold a valuable UK property that is fully taxable at death. In these cases, inheritance tax planning often focuses not on avoiding tax entirely, but on reducing exposure through structuring, gifting, or gradually transitioning assets offshore over time.
Gifting as a Planning Tool
Gifting remains one of the most established inheritance tax planning strategies and continues to be relevant for expats in 2026. The UK allows individuals to give away a certain amount each year immediately free of inheritance tax, alongside small gift exemptions and wedding gift allowances. Larger gifts to individuals are treated as potentially exempt transfers and fall outside the estate entirely if the donor survives for seven years.
For expats, gifting can be particularly effective when applied to non-UK assets while the individual is clearly non-resident. Over time, this can reduce the value of any remaining UK estate and limit exposure to inheritance tax on death. However, gifting requires careful cash-flow planning and an understanding of the seven-year rule, particularly where the donor is older or in poor health.
Offshore Investing as a Structural Advantage
One of the most misunderstood aspects of inheritance tax planning is the role of offshore investing. Offshore investments are not inherently about secrecy or avoidance; they are often about jurisdiction and structure. For long-term expats who are not UK residents, holding assets offshore can mean those assets are simply outside the UK inheritance tax system altogether.
Offshore investment platforms and offshore bonds can be used to consolidate assets in a single, internationally recognised jurisdiction. While offshore bonds are not suitable for everyone, they can be effective for larger portfolios when structured without commission and with transparent costs. They can also integrate well with estate
planning, allowing assets to be passed on efficiently or repositioned before a return to the UK if circumstances change.
That said, platforms often provide greater flexibility. Many offshore platforms allow assets to be sold instantly, which can be useful if someone decides to return to the UK and wants to crystallise gains and start a new UK tax holding period. From an inheritance tax perspective, the key point is not the wrapper itself, but whether the asset sits
inside or outside the UK tax net at death.
A Practical Example
Consider a British expat who left the UK in 2013 and has lived in Southeast Asia ever since. Over that time, they have built an offshore investment portfolio and purchased property abroad. Provided they remain non-resident and do not rebuild a UK residence history, those assets may fall outside UK inheritance tax entirely in 2026. If they also reduce their UK exposure by selling or gifting UK assets over time, their inheritance tax liability could be minimal or even nil.
Contrast this with someone who left the UK in 2015 but plans to return in the next few years. In that case, inheritance tax planning becomes far more about timing, asset realisation, and restructuring before UK residence resumes. The same tools exist, but the strategy and urgency are very different.
Final Thoughts
Inheritance tax planning for UK expats in 2026 is no longer about obscure domicile arguments or one-size-fits-all offshore structures. It is about understanding residence history, being honest about future plans, and aligning investments with where you genuinely live your life.
For long-term expats who have lived outside the UK for more than ten years and do not plan on returning, simply remaining offshore and investing appropriately can be one of the most effective inheritance tax mitigation strategies available. Combined with sensible gifting, careful management of UK assets, and periodic reviews, this approach can significantly reduce or even eliminate UK inheritance tax exposure.
As with all estate planning, the key is early action. Once residence status changes or assets grow beyond certain thresholds, options become more limited and more expensive. For expats who plan ahead, however, the current rules still offer substantial opportunities to protect wealth for the next generation.
From April 2025, the old 15-year “deemed domicile” rule was replaced by a residence-based test. If you were a UK resident for 10 out of the last 20 tax years, you are classified as a “Long-Term Resident” (LTR). When you leave the UK, you don’t escape IHT immediately. You carry an “IHT Tail” that keeps your worldwide estate subject to 40% UK tax for between 3 and 10 years, depending on how long you lived in the UK. For example, if you lived in the UK for 20+ years, HMRC still claims a 40% stake in your global assets for a full decade after you move to places like Dubai or Spain.
Traditionally, UK pensions were the ultimate IHT planning tool because they sat “outside the estate.” However, new legislation confirmed that from April 6, 2027, unused pension pots and death benefits will be included in your taxable estate. For beneficiaries, this can create a “double-whammy” tax rate of up to 67%: the pot is first hit with 40% IHT, and if the pension holder died after age 75, the beneficiary may then pay marginal Income Tax (up to 45%) on the remaining balance. Expats should review QROPS or QNUPS structures now, as these overseas vehicles may offer a way to keep retirement wealth outside the new UK IHT net.
Yes. Under the 2026 rules, the “Long-Term Resident” status can be reset, but it requires a significant period of non-residence. Generally, if you remain a non-UK resident for 10 consecutive tax years, your “residence clock” resets. At this point, only your UK-situs assets (like UK property or UK shares) remain subject to IHT, while your worldwide wealth (foreign property, offshore portfolios, and non-UK bank accounts) falls outside the UK tax net. This makes the 10-year mark a critical “financial anniversary” for every expat.
