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Trusts remain central to cross-border estate planning, but the UK’s increasing emphasis on residence-based inheritance tax exposure has materially changed how they operate.
Where domicile once dominated planning conversations, residence history, timing of settlement, and realistic mobility patterns now play a decisive role.
For British expats, especially those considering a return to the UK, trust exposure is no longer static. Offshore location alone does not determine protection.
A structured review ensures trust design aligns with current legislation, residence history, and future mobility plans.
Trusts have historically been central to cross-border estate planning for internationally mobile individuals.
They have been used to:
However, legislative reform and the increasing emphasis on residence-based inheritance tax have altered how trusts interact with UK exposure.
Assumptions that held under older domicile-focused frameworks may no longer apply in the same way.
The UK inheritance tax framework increasingly reflects residence history.
Where IHT exposure applies, it may extend to worldwide assets depending on the relevant thresholds and legislative provisions.
For trusts, this means:
Trust exposure is not static.
It evolves with residence status.
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When a trust is created relative to residence status can materially affect outcome.
Settling assets while UK resident may produce different consequences compared with settlement during non-resident years.
Short-term absence before settlement may not eliminate long-term exposure if residence thresholds are not met.
Sequencing of trust creation and asset transfer is therefore critical.
Trust settlement decisions should be aligned with realistic absence duration rather than optimistic relocation assumptions.
Offshore trusts may hold:
Asset location alone does not determine inheritance tax exposure if residence-based rules apply.
Where UK IHT exposure exists, worldwide assets within trust structures may still be relevant.
Trust location and asset location must be analysed alongside residence history.
Return to UK residence often reactivates analysis of trust structures.
Depending on legislative thresholds and transitional rules, exposure may change.
Factors to review include:
Trusts established during overseas years should not be assumed to remain insulated after return.
Trust treatment can vary depending on:
Cross-border families often assume that trust structures automatically provide protection.
However, exposure depends on legislative interaction rather than structure alone.
Residence-based frameworks increase the need for coordinated review.
Trusts may be subject to periodic charges depending on structure and exposure.
Residence changes can influence how these charges apply.
Understanding potential:
is critical where mobility is involved.
Trusts should be reviewed periodically rather than left static.
Cross-border trust exposure often becomes visible only after residence status changes.
Trusts are often established during:
Once established, they are sometimes left unchanged.
Mobility assumptions evolve, but structures remain static.
The absence of immediate friction can mask emerging exposure.
Residence reform has increased the need for dynamic review.
Effective cross-border trust planning typically includes:
Trust design must reflect mobility rather than assume permanence.
If exposure thresholds are met after return:
Residence history cannot be rewritten.
Sequencing before return preserves flexibility.
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Trusts remain valid planning tools where structured appropriately.
However, their use must be:
The objective is not to eliminate tax entirely.
It is to ensure that structure aligns with legislative reality.
Using trusts as an expat requires careful alignment with residence-based inheritance tax rules.
Domicile assumptions alone are no longer sufficient.
Residence history, timing of settlement and return scenarios all influence exposure.
Trusts should be dynamic structures that adapt to mobility rather than static instruments established under outdated assumptions.
Planning early and reviewing regularly protects flexibility across borders.
Shil Shah is Skybound Wealth’s Group Head of Tax Planning and a Private Wealth Adviser, based in London. He works with clients who live global lives, executives, entrepreneurs, families and professionals who want clear, confident guidance on their wealth, their tax position and the decisions that shape their future.
This article is provided for general informational purposes only and does not constitute tax, legal or financial advice. Trust taxation and inheritance tax exposure depend on legislation in force, residence history and individual circumstances. Professional advice should be sought before acting.
A review can help you:
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A structured review can clarify whether your trust structure aligns with current legislation and residence history.
In a focused session, we can:
Trust planning should be deliberate, not assumed.
