Cross-Border Tax Planning with Private Trusts: Optimising Overseas Assets for HK Residents

The Hong Kong Inland Revenue Department’s (IRD) 2025/26 Budget, announced in February 2025, signalled a decisive tightening of the territory’s tax residence rules for trusts, effectively ending a long-standing grey area for High Net Worth (HNW) families. The new provisions, codified under Inland Revenue Ordinance (IRO) s. 20A, now require a private trust to demonstrate that its central management and control is exercised in Hong Kong to qualify for the 0% tax rate on offshore-sourced income. This shift, combined with the OECD’s ongoing implementation of the Global Anti-Base Erosion (GloBE) rules under Pillar Two, has forced a fundamental recalibration of cross-border trust structures for Hong Kong residents holding overseas assets. The era of relying solely on a Hong Kong-resident trustee to secure tax exemption is over; the IRD now demands substantive economic substance within the trust’s administrative framework. For private bank clients and their advisors, this means that a standard VISTA trust in the BVI, or a STAR trust in the Cayman Islands, can no longer be a passive holding vehicle without a direct Hong Kong tax liability. The 2025-2026 regulatory environment demands a proactive restructuring of the trust’s governance, asset location, and beneficiary distributions to align with the IRD’s new substance requirements.

The New Substance Regime for Hong Kong Trusts

The IRD’s 2025/26 Budget amendments to the IRO directly target the distinction between a Hong Kong-resident trust and a non-resident trust for tax purposes. The key change is the codification of the “central management and control” test, moving it from case law into statute. Under the new IRO s. 20A(3), a trust is deemed resident in Hong Kong if the majority of its trustees are resident in Hong Kong, and the trust’s strategic decisions—such as investment policy, asset acquisitions, and distribution approvals—are made in Hong Kong. This eliminates the previous practice where a Hong Kong trustee acted as a mere nominee while the real control was exercised by a foreign protector or settlor.

The BVI VISTA Trust Under Pressure

The British Virgin Islands (BVI) VISTA trust, governed by the Virgin Islands Special Trusts Act, 2021 (VISTA), has been a staple for Hong Kong families holding BVI business companies. The VISTA trust’s core feature—allowing the settlor to retain control over the underlying company’s board—directly conflicts with the IRD’s new substance test. A Hong Kong resident settlor who retains the power to appoint and remove directors of the BVI company held by the VISTA trust is exercising central management and control from Hong Kong. The IRD’s 2025 practice note on this issue explicitly states that such retained powers will cause the trust to be treated as Hong Kong resident, exposing its worldwide income to Hong Kong profits tax at the standard 16.5% rate. The BVI Financial Services Commission (FSC) has responded by issuing a 2025 circular reminding licensed trustees that they must demonstrate independent decision-making to maintain their BVI trust licence, creating a direct conflict with the Hong Kong substance requirement.

The Cayman STAR Trust and the Economic Substance Test

Cayman Islands STAR trusts, established under the Special Trusts (Alternative Regime) Law (2024 Revision), face a different but equally pressing challenge. The Cayman Islands’ own Economic Substance Law (ES Law) requires any trust carrying on a “relevant activity” to demonstrate adequate substance in the Cayman Islands. For a STAR trust holding a Cayman-exempted company that conducts investment management, the trust itself must now meet a headcount and expenditure test. The Cayman Tax Information Authority’s 2025 guidance note confirms that a trust with a Hong Kong resident protector who exercises veto powers over the trustee’s investment decisions will fail the Cayman substance test. This creates a double-taxation risk: the trust could be deemed resident in Hong Kong under IRO s. 20A and simultaneously fail the Cayman substance test, triggering a 0% tax rate in Cayman but a 16.5% tax rate in Hong Kong, with no foreign tax credit available.

Structuring for Tax Efficiency: The Hong Kong Private Trust Company

The most effective response to the 2025-2026 regulatory changes is the adoption of a Hong Kong Private Trust Company (PTC) as the trustee. A PTC is a licensed corporation under the SFC’s Code of Conduct for Persons Licensed by or Registered with the Securities and Futures Commission (SFC Code), specifically under the Type 9 (asset management) regulated activity, although a licensing exemption exists for a PTC that acts solely for a single family. The PTC structure allows the family to exercise control over the trust’s investment decisions while maintaining the central management and control in Hong Kong, thereby satisfying the IRD’s new substance test.

The Licensing Exemption and Its Limits

The SFC’s 2024 revised guidelines on the licensing exemption for PTCs, published under the SFC Code para. 5.2, are critical. A PTC that acts for a single family—defined as a group of individuals related by blood, marriage, or adoption—is exempt from the Type 9 licence requirement. However, the exemption is conditional on the PTC not holding itself out as providing services to the public and not receiving any remuneration for its trustee services beyond reimbursement of expenses. For a Hong Kong resident family with overseas assets, the PTC must be incorporated in Hong Kong as a private company limited by shares under the Companies Ordinance (Cap. 622). The PTC’s board must consist of at least two directors who are resident in Hong Kong, and all board meetings must be held in Hong Kong to satisfy the IRD’s central management and control test. The 2025 IRD practice note specifically references the PTC structure as a compliant vehicle, provided that the PTC’s directors have the requisite expertise to make independent investment decisions.

Asset Location and the 0% Tax Rate

The PTC structure allows the trust to hold overseas assets—such as a BVI company, a Cayman fund, or a Singapore bank account—while maintaining the trust’s Hong Kong residence. The IRD’s territorial source principle means that only income sourced in Hong Kong is subject to profits tax. By ensuring that all investment decisions are made by the PTC’s board in Hong Kong, the income from the overseas assets is treated as offshore-sourced and thus exempt from Hong Kong profits tax under IRO s. 14. However, the IRD’s 2025 guidance requires the PTC to maintain a clear paper trail: board resolutions, investment committee minutes, and trading confirmations must all be executed and stored in Hong Kong. The IRD has the power to issue a notice under IRO s. 51(4) requiring the PTC to produce these documents within 21 days, and failure to do so can result in a penalty of up to HKD 100,000 per offence.

Cross-Border Distributions and the Tax Treatment of Beneficiaries

The tax treatment of distributions from a Hong Kong private trust to beneficiaries who are resident in different jurisdictions is a critical consideration. The IRD does not impose a gift tax or an inheritance tax in Hong Kong, meaning that distributions of capital to Hong Kong resident beneficiaries are generally tax-free. However, distributions of income that has been accumulated in the trust are treated as the beneficiary’s income in the year of distribution under IRO s. 61A, which is the anti-avoidance provision for trust income.

The PRC Beneficiary Problem

For Hong Kong residents who are also Chinese nationals, the distribution of trust assets to a beneficiary resident in the People’s Republic of China (PRC) triggers the PRC’s Individual Income Tax (IIT) law. Under the PRC IIT Law 2018, a resident individual is subject to tax on their worldwide income at progressive rates up to 45%. The PRC State Administration of Taxation (SAT) has issued a 2024 circular explicitly treating distributions from a foreign trust as “income from other sources” under Article 6 of the IIT Law, taxable at the beneficiary’s marginal rate. This creates a significant tax leakage for Hong Kong families who have second-generation beneficiaries living or working in mainland China. The solution is to structure the trust as a non-resident trust for PRC purposes by ensuring that the settlor is not a PRC tax resident at the time of settlement and that the beneficiary’s interest is limited to a discretionary interest, not a fixed entitlement. The PRC’s 2024 circular confirms that a discretionary beneficiary is not taxed until they receive an actual distribution, and only on the amount received.

The US Beneficiary and the Foreign Grantor Trust Rules

For Hong Kong residents with beneficiaries who are US citizens or green card holders, the US Foreign Grantor Trust (FGT) rules under the Internal Revenue Code (IRC) Subchapter J are a mandatory consideration. A Hong Kong private trust with a Hong Kong resident settlor is automatically classified as a foreign trust for US tax purposes. If the trust makes a distribution to a US beneficiary, the beneficiary must report the distribution as a “foreign trust distribution” on IRS Form 3520, and the income is subject to the “throwback tax” rules under IRC s. 668. This means that the beneficiary is taxed at the highest marginal rate (currently 37%) plus an interest charge on the deferred tax. The 2025 IRS guidance on foreign trusts explicitly warns that a Hong Kong PTC structure does not qualify for the FGT exemption because the PTC is not a US person. The only way to avoid the throwback tax is to ensure that the trust is treated as a grantor trust for US purposes, which requires the settlor to retain certain powers under IRC s. 671-679. For a Hong Kong resident settlor, this is generally not advisable as it would make the settlor taxable on the trust’s worldwide income.

Actionable Takeaways for 2025-2026

1. Restructure your BVI VISTA or Cayman STAR trust immediately to transfer central management and control to a Hong Kong PTC board, or risk the IRD deeming the trust Hong Kong-resident and taxing its worldwide income at 16.5% under the new IRO s. 20A.

2. Ensure your Hong Kong PTC holds at least two board meetings per year in Hong Kong with documented minutes and resolutions, as the IRD’s 2025 practice note requires a clear audit trail of decision-making to satisfy the substance test.

3. Review all beneficiary distributions to PRC residents under the SAT’s 2024 circular, and structure the beneficiary’s interest as discretionary rather than fixed to defer the 45% marginal IIT until actual receipt.

4. For US beneficiaries, accept that a Hong Kong trust will be a foreign grantor trust and budget for the 37% throwback tax plus interest on any distribution, as no structuring can avoid this under current IRC provisions.

5. Engage a Hong Kong-licensed tax representative to file a voluntary disclosure with the IRD under the 2025 amnesty programme if your existing trust structure has been operating without proper substance, as penalties under IRO s. 82A can reach 300% of the tax undercharged.