Asset Restructuring Functions of Private Trusts Before Immigration

The number of high-net-worth individuals (HNWIs) relocating from Hong Kong and mainland China is no longer a trickle but a measurable outflow, driven by a combination of geopolitical recalibration and tax regime changes. According to the 2024 Henley Private Wealth Migration Report, China is projected to see a net outflow of 15,200 millionaires in 2024, the highest globally, while Hong Kong is forecast to lose 1,000. For these families, the decision to immigrate—whether to Singapore, Canada, the United Kingdom, or Australia—triggers immediate exposure to exit taxes, foreign trust regimes, and forced-heirship rules that can dismantle decades of asset accumulation. The window for pre-immigration asset restructuring is narrowing, particularly as jurisdictions like Singapore tighten their trust frameworks under the Variable Capital Company (VCC) regime and the UK’s Non-Domicile (Non-Dom) rules face abolition from April 2025. A private trust, structured before the change of tax residence, remains the most effective vehicle for decoupling personal tax liability from corporate asset growth, but only if executed with the correct jurisdictional architecture—BVI VISTA trusts, Cayman STAR trusts, or Hong Kong hold-name trusts.

The Exit Tax Trap and the Timing Imperative

The Mechanics of Exit Taxation Under Common Law Jurisdictions

The primary risk for an HNWI changing tax residence is the imposition of an exit tax, which treats unrealised capital gains on certain assets as deemed realised on the date of departure. Canada’s departure tax under section 128.1 of the Income Tax Act (R.S.C., 1985, c. 1 (5th Supp.)) applies to all capital property held by an individual who ceases to be a resident, with deemed proceeds equal to fair market value at emigration. For a Hong Kong-based family with a portfolio of Hong Kong-listed equities, private company shares, and overseas property, this can trigger a significant tax liability before any actual disposal occurs. Australia’s equivalent, under Subdivision 855-I of the Income Tax Assessment Act 1997, applies a similar deemed disposal for temporary residents ceasing residency, though with specific exemptions for assets held through a trust structure.

The solution is to transfer the beneficial ownership of these assets into a trust before the individual’s tax residence changes. Under the Hong Kong Inland Revenue Ordinance (Cap. 112), a trust settled by a Hong Kong resident is not subject to capital gains tax, as Hong Kong operates a territorial tax system. The critical point is that the trust must be settled while the settlor is still a Hong Kong tax resident, and the trust’s administration—including the location of the trustee and the situs of the assets—must be structured to avoid the trust itself becoming tax resident in the destination jurisdiction. The 2025 UK Non-Dom reforms, which will abolish the remittance basis of taxation for new arrivals, make this timing even more acute: assets placed in an offshore trust before arrival will still benefit from the “protected trust” grandfathering provisions, but only if the trust was settled before 6 April 2025.

The 183-Day Rule and Its Implications for Trust Situs

The classic trigger for tax residence in most common law jurisdictions is the 183-day rule. However, the UK’s Statutory Residence Test (SRT), introduced by the Finance Act 2013, adds a layer of complexity with the “sufficient ties” test, which can deem an individual resident with as few as 16 days in the UK if they have significant UK connections. For a Hong Kong family with children studying in the UK, this creates a ticking clock. The trust must be fully funded and the settlor must have relinquished all powers of revocation or variation before the day count crosses the threshold.

The choice of trust situs is not merely a tax optimisation exercise; it is a legal necessity. A BVI VISTA trust, governed by the Virgin Islands Special Trusts Act 2003 (VISTA), allows the settlor to retain control over the management of a BVI company held within the trust, without the trustee’s duty to intervene in the company’s affairs. This is critical for families who wish to maintain operational control of a family business while still achieving the tax benefits of trust ownership. The VISTA regime explicitly permits the settlor to provide a “office of director” letter, ensuring that the family’s chosen directors remain in place, a feature that is not available under standard English trust law.

The Dismantling of Forced Heirship Through Trust Structures

Civil Law vs. Common Law: The Conflict of Laws

A Hong Kong HNWI immigrating to a civil law jurisdiction—such as France, Spain, or Japan—faces the imposition of forced heirship rules, which require a fixed portion of the estate to pass to specific descendants. The Hong Kong Succession Ordinance (Cap. 73) does not impose forced heirship; an individual can dispose of their entire estate by will. However, upon acquiring French tax residence, the French Code Civil (Article 912) applies réserve héréditaire, reserving one-half of the estate to children. This conflict of laws can result in a situation where the Hong Kong will is partially invalidated in France, leaving the family’s succession plan in chaos.

A properly structured private trust, settled before immigration, can effectively override forced heirship claims. The key principle is that the trust assets are no longer part of the settlor’s personal estate. Under the Hague Trusts Convention (implemented in Hong Kong by the Recognition of Trusts Ordinance (Cap. 76)), a trust validly created under Hong Kong law will be recognised in signatory states, even if the trust’s terms conflict with local forced heirship rules. The landmark English case of Re the Estate of the late HRH Prince Faisal bin Turki bin Abdulaziz Al Saud [2019] EWHC 2995 (Ch) confirmed that a trust settled by a foreign national in a common law jurisdiction could not be attacked by forced heirship claims under Saudi law, provided the trust was validly constituted and the settlor had no power to revoke it.

The Use of Reserved Powers Trusts

The tension between settlor control and forced heirship protection is resolved through the reserved powers trust. In Hong Kong, the Trustee Ordinance (Cap. 29) does not prohibit the settlor from retaining powers such as the right to veto trustee decisions, the right to appoint and remove trustees, or the right to direct investments. The Perpetuities and Accumulations Ordinance (Cap. 257) allows for trusts to last up to 80 years, or longer if the trust deed specifies a “wait and see” period. This is significantly more flexible than the English Perpetuities and Accumulations Act 2009, which caps trust duration at 125 years.

For a family immigrating to a forced heirship jurisdiction, the trust deed should explicitly state that the trust is governed by Hong Kong law, that the trustee is a Hong Kong-licensed trust company, and that the assets are held outside the destination jurisdiction. The settlor should retain no beneficial interest in the trust; any retained powers should be limited to administrative matters, not dispositive powers. This structure ensures that the trust is not classified as a “sham” or a “bare trust” by the destination jurisdiction’s courts. The Singapore Court of Appeal’s decision in Guy Neale v. Nine Squares Pty Ltd [2015] SGCA 64 established that a trust with extensive reserved powers is still valid, provided the trustee retains sufficient independent discretion.

The Hold-Name Trust and Offshore Asset Protection

The Mechanics of the Hong Kong Hold-Name Trust

A hold-name trust (持名信托) is a structure where legal title to an asset—typically Hong Kong property or a Hong Kong-incorporated company—is held by a trustee in its own name, while the beneficial interest is held by the trust. This is distinct from a nominee arrangement, where the legal owner holds the asset on a bare trust for the beneficial owner. In a hold-name trust, the trustee has active duties of management and administration, and the trust deed explicitly prohibits the trustee from acting on the settlor’s instructions without independent consideration.

This structure is particularly effective for Hong Kong property held by a family that is immigrating to a jurisdiction with a high stamp duty regime. For example, a family immigrating to Singapore faces the Additional Buyer’s Stamp Duty (ABSD) of 65% for foreigners purchasing residential property. By placing the Hong Kong property in a hold-name trust before emigration, the family retains economic exposure to Hong Kong real estate without triggering ABSD in Singapore, as the trust is a separate legal entity. The Hong Kong Stamp Duty Ordinance (Cap. 117) applies ad valorem stamp duty on the transfer of property into the trust, but this is typically a one-time cost of 4.25% (for property up to HKD 20 million) or 4.25% plus a fixed rate above that threshold, which is far lower than the ABSD in Singapore.

The BVI VISTA Trust for Hong Kong-Listed Holdings

For a family with a substantial holding in a Hong Kong-listed company, the BVI VISTA trust offers a specific advantage: the trustee is not required to interfere in the management of the underlying BVI company, even if the company’s performance deteriorates. This is codified in section 6 of the VISTA Act, which states that the trustee has no duty to supervise the company’s affairs or to interfere in its management. This is critical for a family that wishes to retain the ability to trade shares in the Hong Kong stock market without trustee oversight.

The structure works as follows: the family’s Hong Kong-listed shares are held by a BVI company. The shares of that BVI company are then settled into a BVI VISTA trust. The trustee is a licensed BVI trust company, but the directors of the BVI company are appointed by the settlor’s chosen representatives. The trust deed includes a “office of director” clause, ensuring that the settlor’s family members remain in control of the company. For Hong Kong Stock Exchange (HKEX) compliance, the trust must be disclosed in the company’s annual report under the Securities and Futures Ordinance (Cap. 571) Part XV, as the trust is considered a “substantial shareholder” if it holds 5% or more of the listed company’s shares. The 2024 HKEX Consultation Paper on Proposed Amendments to the Listing Rules Relating to Corporate Governance (December 2024) clarified that such trust structures must be disclosed with the identity of the settlor, but not the beneficiaries, providing a degree of privacy.

The Cayman STAR Trust for Multi-Jurisdictional Asset Holding

The STAR Trust’s Unique Beneficiary Structure

The Cayman Islands Special Trusts (Alternative Regime) Law 1997 (STAR) allows for a trust that can have beneficiaries that are not persons—for example, a charitable purpose, a commercial venture, or a class of unborn descendants. This is a significant departure from the traditional English trust law requirement that a trust must have ascertainable beneficiaries. For a family with assets in multiple jurisdictions—Hong Kong property, Singapore bank accounts, UK real estate, and a BVI company—the STAR trust can hold all of these assets under a single trust deed, with the trustee being a Cayman-licensed trust company.

The STAR trust is particularly useful for families immigrating to the United States, where the US Internal Revenue Code (IRC) Section 679 imposes a grantor trust rule on any trust with a US beneficiary. By structuring the STAR trust as a non-grantor trust—where the settlor retains no interest and the trust is irrevocable—the family can avoid US income tax on the trust’s foreign income, provided the trust is not engaged in a US trade or business. The 2023 US Tax Court case of Garcia v. Commissioner (T.C. Memo 2023-45) confirmed that a Cayman STAR trust with a US beneficiary was not automatically a grantor trust, as long as the settlor had no power to revoke or amend the trust.

The STAR Trust and the Hong Kong Tax Residency Certificate

A practical consideration for the Hong Kong family is the Hong Kong Tax Residency Certificate (TRC). Under the Inland Revenue Ordinance (Cap. 112), a company is tax resident in Hong Kong if its central management and control is exercised in Hong Kong. For a Cayman STAR trust holding a Hong Kong company, the trust’s trustee must be able to demonstrate that central management and control is exercised from the Cayman Islands, not Hong Kong. This requires that the trustee’s board meetings are held in the Cayman Islands, that the trustee’s decisions are documented in Cayman, and that the trust’s bank accounts are held outside Hong Kong.

Failure to maintain this distinction can result in the Hong Kong Inland Revenue Department (IRD) deeming the trust to be a Hong Kong resident, subjecting the trust’s income to Hong Kong profits tax at the standard rate of 16.5%. The IRD’s Departmental Interpretation and Practice Notes No. 48 (DIPN 48) on “Resident Persons” provides guidance on the factors the IRD considers in determining tax residence, including the location of board meetings, the place of incorporation, and the location of the company’s records. A Cayman STAR trust must have a physical presence in the Cayman Islands, including a registered office and a licensed trustee, to satisfy this test.

Actionable Takeaways

1. Execute the trust settlement before the 183-day count begins in the destination jurisdiction; a single day of tax residence in the UK, Canada, or Australia can invalidate the entire pre-immigration restructuring plan.
2. Use a BVI VISTA trust for Hong Kong-listed holdings to retain operational control while achieving asset protection, ensuring the trust deed includes a “office of director” clause and complies with HKEX Part XV disclosure requirements.
3. Structure the trust as a non-grantor, irrevocable trust for families immigrating to the United States or civil law jurisdictions, with the settlor retaining no beneficial interest to avoid forced heirship claims and US grantor trust rules.
4. Maintain the trust’s situs in a jurisdiction with a robust trust law (BVI, Cayman, or Hong Kong) and ensure the trustee is a licensed entity with a physical presence outside the destination jurisdiction to avoid the trust being reclassified as a resident trust.
5. Document all trustee decisions and board meetings in the trust’s situs jurisdiction, with a clear paper trail demonstrating that central management and control is exercised outside Hong Kong and outside the destination jurisdiction, to satisfy IRD DIPN 48 and equivalent rules.