If you have been UK resident for 10 of the last 20 tax years, your overseas assets in Qatar, the GCC, or anywhere else in the world remain inside the UK inheritance tax net even after you have moved abroad. Domicile is no longer the test. Long term residence is.

The headline shift: from domicile to residence

For more than two centuries the UK used the concept of domicile to decide whether a person’s worldwide estate was caught by UK Inheritance Tax (IHT). That ended on 6 April 2025. The new framework, set out in the Finance Act 2025, replaces domicile with a residence based test. The key term is Long Term Resident (LTR).

You are an LTR if you have been UK tax resident for at least 10 of the previous 20 tax years. If you meet that threshold your worldwide estate is within scope of UK IHT at 40 percent above the nil rate band. If you do not meet it, only your UK situated assets, such as property in the UK, UK shares, or UK bank accounts, remain chargeable.

For a British professional who arrived in Qatar three years ago after a long career in London, this is the single most important tax change of their lifetime. The Sovereign Group, Blevins Franks and HMRC’s own Long Term UK Resident guidance all confirm that the test now follows your physical presence, not the country your father was born in.

The 10 year tail: why leaving the UK does not switch off IHT immediately

The most misunderstood part of the new rules is the so called IHT tail. When you stop being UK resident, you do not instantly drop out of the worldwide IHT net. You drag a tail behind you. The length of that tail depends on how long you were resident in the UK before you left.

What this actually means for your assets in Qatar

Qatar has no personal income tax, no capital gains tax, and no inheritance tax under domestic law. That has long made the country attractive for British professionals. The new UK rules do not change Qatar’s position. They change yours under UK law, and the assets HMRC can reach include:

Five mitigation strategies you can put in place from Qatar

1. Use the seven year gifting clock

Outright gifts to individuals are Potentially Exempt Transfers. If you survive seven years from the date of the gift, the value falls outside your estate entirely. The clock starts the day the gift is made, so the earlier you begin a structured gifting programme, the more value you can move out of the IHT net before the tail expires. Annual exemptions of GBP 3,000, the small gifts allowance, and gifts out of normal expenditure from income are also available and frequently underused.

2. Place life insurance in trust

A whole of life policy written in trust does not form part of your estate. The sum assured pays out directly to your beneficiaries, providing the liquidity to settle any IHT liability without forcing the family to sell the Pearl apartment or liquidate Qatari investments at the wrong time. For an expat in their 40s or 50s in good health, premiums on offshore life cover are often surprisingly affordable. Critically, the trust must be set up correctly under English law and the policy assigned into it.

3. Consider an excluded property trust before the tail starts

If you are still inside the 10 of 20 year window, the planning window is short. Excluded property trusts established before you become an LTR can shelter non UK assets indefinitely. Once you are an LTR, the planning options narrow significantly.

4. Plan around the 10 consecutive year reset

If you remain non UK resident for 10 consecutive tax years, you cease to be an LTR and the 20 year lookback resets. For someone returning to the UK on short term assignments or family visits, careful day counting under the Statutory Residence Test is essential. A single accidental tax year of UK residence can disrupt the reset.

5. Review your Will and beneficiary nominations

Many British expats have UK Wills drafted before they moved to Qatar. The new IHT rules, the 2027 pension change, and the absence of forced heirship in Qatar for non Muslims all interact in ways that an old Will may not handle well. A coordinated UK Will, plus a Qatar Will if you hold local assets, is now standard practice.

UK Qatar tax treaty: what it does and does not do

The 2009 UK Qatar Double Tax Convention prevents double taxation on income, employment and pensions between the two countries. It does not, however, cover inheritance tax. There is no IHT treaty between the UK and Qatar. That means HMRC’s worldwide reach under the new LTR rules is not blocked by any treaty relief on the Qatar side. Unilateral relief may be available where another jurisdiction has charged death duties on the same asset, but Qatar charges none, so the UK liability stands in full.

Frequently asked questions

Next step: build your 2025 IHT plan before the tail runs

Every month you delay is a month closer to the next gifting deadline, the next premium increase on a life policy, and the next tax year of LTR exposure. A focused two hour review with a UK qualified accountant who understands Qatar will tell you exactly where you stand, what the tail looks like for your circumstances, and which of the five mitigation routes above will move the most value out of HMRC’s reach.

This article is for general information only and does not constitute personal tax, legal or financial advice. UK and Qatar tax positions change. Always seek tailored advice based on your specific circumstances before acting.