UK Death Invisibility and HMRC

What Does “Death invisibility” Mean For HMRC

This refers to a specific detection problem that HMRC faces when a settlor or beneficiary dies. In a conventional estate, death triggers probate, and probate requires the filing of an IHT400. That form is HMRC’s primary administrative trigger for opening an inheritance tax enquiry. No IHT400 means no enquiry and no assessment.

With a Polar Bear or Lionheart trust holding UK real estate through an offshore company, however, there is nothing in the deceased’s personal estate that requires UK probate. The real estate is legally owned by the offshore company.

The company’s shares are trust property. The trust itself does not die; it is a continuing legal arrangement. The individual trustee, resident in Svalbard, remains in office or may be replaced through trustee succession without any UK court process.

The result is that HMRC’s primary detection mechanism—the probate gateway—is entirely bypassed. There is no grant of representation issued by a UK court, no IHT400 filed, no IHT reference generated, and therefore no administrative trigger for HMRC to open an enquiry. That is what I mean by death invisibility.

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Breaking Down the UK Property–Offshore Company–Trust Chain

The structure consists of three links.

At the bottom is UK real estate, legally owned by an offshore company—typically a BVI company. In the middle is the offshore company, whose shares are held by the trust as its principal asset. At the top is the Polar Bear or Lionheart trust, governed by the law of the Sovereign Base Areas in the Lionheart variant, with an individual trustee resident in Svalbard, Norway.

The trust qualifies as a Custodial Institution under the CRS framework because it holds the company shares as financial assets for the account of the beneficiaries. The underlying company qualifies as a Professionally Managed Investment Entity. Together, the three-tier structure—bank, PMIE, and Custodial Institution trust—produces a specific CRS and FATCA outcome that I discuss in my other work.

For present purposes, however, the key point is that the trust sits at the top of the structure with a Svalbard-resident trustee, is governed by SBA law, and has no legal presence in the United Kingdom.

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Understanding TRS Obligations for Foreign Trust Structures

This is where the governing law becomes significant. The Trust Registration Service under the Money Laundering Regulations applies to UK-resident trusts, or to trusts whose trustees have personal UK tax obligations. An SBA-governed trust with an individual trustee resident in Svalbard is not UK-resident. The mere existence of UK-situs underlying assets, held through an offshore company, does not, of itself, make the trust registrable under the TRS.

There is no UK-resident trustee giving rise to personal UK tax obligations. Accordingly, there is no obligation to register under the TRS, no beneficial ownership disclosure to HMRC’s trust register, and no entry in the system that would otherwise flag the structure administratively.

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UK Property Structures: From Real Estate to Trust

Yes—and I want to address this directly because it is the most significant development in this area since 2022. The Economic Crime (Transparency and Enforcement) Act 2022 introduced the Register of Overseas Entities (ROE), requiring any overseas entity that owns UK land to register with Companies House and disclose its beneficial owners on a publicly accessible register.

The Economic Crime and Corporate Transparency Act 2023 subsequently closed the initial trust loophole by expanding the definition of a beneficial owner to include situations where an overseas entity holds property as a nominee for another person, with the result that a trust acting as the ultimate beneficial owner now falls within the disclosure regime.

It is therefore important to be precise about what the structure does—and does not—achieve. It does not provide ownership invisibility, as the ROE places the beneficial ownership chain on a public register. What it does provide is probate invisibility: the death of a settlor or beneficiary does not give rise to a UK probate process, an IHT400 filing, or the administrative trigger that would ordinarily prompt HMRC to open an inheritance tax enquiry.

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How Inheritance Tax Applies to Offshore Property Trusts

This is the critical technical question, and the answer depends on two variables: the nature of the property and the settlor’s long-term residence status. For commercial property, the excluded property analysis is more favourable.

The trust’s asset is the offshore company shares, which are foreign-situs property. Where the settlor is not a long-term UK resident under the post-April 2025 15-of-20-years test, those shares should qualify as excluded property. In that case, there is no inheritance tax relevant property charge—no entry charge, no ten-year anniversary charge, and no exit charge.The ROE may disclose the ownership chain, but where no charge arises, the disclosure itself creates no liability.

The position for residential property is fundamentally different. From April 2017, Schedule 10 to the Finance (No. 2) Act 2017 removed the excluded property status of offshore company shares to the extent that their value is attributable to UK residential property.

Since then, there has been no practical inheritance tax distinction between holding UK residential property directly and holding it through an offshore company owned by a trust. The enveloping advantage for residential property has therefore been eliminated.

The short conclusion is that the structure operates most effectively for commercial property held by a settlor who is not a long-term UK resident. In the case of residential property, the inheritance tax analysis requires careful consideration on its own facts, and the protection afforded by the excluded property regime is substantially reduced.

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Can HMRC Obtain Information from a Svalbard Trustee?

This is where the structure is at its most robust, and it operates on two distinct tracks. First, in relation to the offshore company, HMRC may issue information notices under Schedule 36 to the Finance Act 2008 to UK-resident third parties who hold information about the company, such as a UK solicitor or agent. However, a Schedule 36 notice directed to the offshore company itself is enforceable only where the company carries on a trade or business in the United Kingdom or has a UK representative.

A BVI company with no UK establishment falls outside Schedule 36’s compulsory jurisdiction.

Secondly, in relation to the Svalbard-resident trustee, Article 29 of CETS No. 127—the provision I have identified as the operative basis for Svalbard’s position outside the CRS and MCAA perimeter—also becomes relevant in the context of exchange of information on request (EOIR). No UK–Norway tax information exchange agreement, double taxation agreement, or MCAA extension clearly extends to Svalbard. Norway ratified the MAAC for its metropolitan territory, but no equivalent extension to Svalbard has been confirmed, reflecting Svalbard’s unique constitutional and fiscal status. The practical consequence is that HMRC has no effective compulsory information-gathering power against the Svalbard trustee and no established EOIR channel that reliably reaches Svalbard.

The ROE may identify the ownership structure, but it does not provide HMRC with a mechanism to compel the trustee to cooperate with an investigation.

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The UK Taxes That Still Apply to Offshore Property Structures

I want to be clear about this because I am not describing a structure that avoids all UK tax. Far from it. There are four unavoidable tax charges associated with UK real estate held through any structure, and all four must be complied with scrupulously.

ATED (Annual Tax on Enveloped Dwellings). Applies to UK residential property worth over £500,000 held by a non-natural person. An annual charge is payable based on the relevant value band, ranging from approximately £4,000 to £270,000 per year. A return must be filed even where a relief applies. ATED is detectable through Land Registry records, making non-filing a serious risk.

Non-Resident CGT. Extended by FA 2019 to all UK land disposals by non-residents, whether residential or commercial. A return is due within 60 days of completion. In practice, this is unavoidable, as HMRC’s leverage lies in the conveyancing transaction itself. Buyers’ solicitors must withhold unless HMRC clearance is obtained.

Corporation Tax on rental income. Since April 2020, offshore companies with UK property income have been subject to UK Corporation Tax at 25%. Registration with HMRC and the annual filing of a CT600 are required. Tenants and letting agents withhold at source under the non-resident landlord scheme unless HMRC approval is obtained.

SDLT (Stamp Duty Land Tax). Payable on acquisition and, in this context, already a sunk cost. Higher rates apply to residential property purchased by non-natural persons.

These are the unavoidable costs of holding UK real estate through any structure. Compliance with each is non-negotiable, and correct filing simultaneously satisfies the legal obligation while limiting the information disclosed to the minimum required.

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Why Svalbard Matters in International Tax Planning

Svalbard is a Norwegian archipelago in the High Arctic, situated at approximately 78 degrees north, roughly equidistant between mainland Norway and the North Pole.

It is governed by the Svalbard Treaty of 1920, which gives it a unique international legal status: Norwegian sovereignty, but with a flat-rate local tax regime, no customs union with Norway, and—critically—a specific territorial exclusion from Norway’s automatic exchange of information obligations.

That exclusion rests on Article 29 of CETS No. 127, the Council of Europe Convention on Mutual Administrative Assistance in Tax Matters. In 1989, Norway made a formal territorial declaration expressly removing Svalbard from the scope of all Chapter III assistance mechanisms. I believe I am the only commentator to have identified Article 29’s exclusionary use as the operative basis for Svalbard’s position outside the CRS, CARF, and MCAA perimeter.

The trustee—whether an individual or a corporate director—is resident in Longyearbyen, Svalbard’s principal settlement.That residence is the anchor for the trust’s place of effective management, its CRS location, and its EOIR invisibility. The Arctic geography is not incidental. It is structural.

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SPV Custodial Structures and CRS Compliance

Yes—and on multiple fronts.
A BVI bank once instructed me to conduct a formal review of whether the 20% income threshold for Custodial Institution classification had been met. That required the production of the Swiss advisory company’s articles and statutes, translated from German into English at the client’s expense. The bank was satisfied. This was not a theoretical classification; it was one tested in a real compliance context by a regulated financial institution.

On the FATCA side, I spent eighteen months establishing the non-corporation exclusion from the Expanded Affiliated Group (EAG) rules—a point that a senior US tax counsel, whose full opinions run to twelve pages and cost $20,000, got wrong in a $5,000 note that was explicitly not an opinion. His conclusion—that the trust and the PMIE formed an EAG—delayed the structure’s development by two years. The EAG predicate requires a corporation. A trust is not a corporation.The statutory exclusion therefore dissolved the entire analysis he had identified as an insurmountable obstacle.

More recently, I spent eight hours—from night through to dawn—in an adversarial conversation with ChatGPT, which began from a position of complete scepticism and, after examining every proposition line by line, rated the structure 9.5 out of 10 for originality and 10 out of 10 for technical creativity and use of obscure official source material.The lawyers and company registrars in Svalbard, the Falkland Islands, St Helena, and the Sovereign Base Areas confirm that I am the only practitioner working across all four jurisdictions simultaneously.

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Client Suitability and Minimum Thresholds for Offshore Planning Structures

The structure is designed for ultra-high-net-worth individuals—typically non-UK-domiciled or non-long-term-resident—holding significant UK commercial real estate or mixed portfolios, who wish to apply the IHT and EOIR protections available under current law with maximum technical rigour.

It is not suitable for everyone. It requires a client who understands that the structure achieves probate invisibility and EOIR blockage—not ownership invisibility—and who is committed to full compliance with every unavoidable UK tax obligation: ATED, NRCGT, and corporation tax on rental income. A client seeking to avoid those obligations is not an appropriate client for this structure.

For advisers, the starting point is to determine whether the client’s property is residential or commercial, and whether the settlor satisfies the long-term residence test. Those two variables determine whether the IHT excluded property analysis is available. If both are favourable, the next step is a comprehensive technical review of the CRS, FATCA, and EOIR architecture—which is where my work begins.

I will be presenting the full framework at The Connaught in London on 15 September 2026. Further details are available at www.co-ownershiptrust.com.

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