Private Trust Companies in Hong Kong: Regulatory Advantages and Operational Risks

The private trust company (PTC) structure has moved from a niche solution for ultra-high-net-worth families to a mainstream governance vehicle in Hong Kong, driven by two concurrent regulatory developments. The Hong Kong Monetary Authority’s (HKMA) enhanced Supervisory Policy Manual (SPM) module on trust business, updated in Q4 2024, explicitly recognised the PTC model for licensed trust companies managing family offices, while the Inland Revenue Department’s (IRD) updated Departmental Interpretation and Practice Notes (DIPN) on the unified profits tax exemption regime for family-owned investment holding vehicles (FIHVs), issued in May 2025, created a clear tax pathway for PTCs holding qualifying assets. These changes, combined with the SFC’s ongoing consultation on a new Type 13 regulated activity for family office advisory, have catalysed a 23% year-on-year increase in PTC incorporations in Hong Kong during the first half of 2025, according to Companies Registry data. For trust practitioners and cross-border families, the PTC now offers a bespoke governance framework that separates legal ownership from control, but the operational risks—particularly around anti-money laundering compliance, director liability, and Hong Kong’s evolving economic substance requirements—demand rigorous structural planning.

The Regulatory Architecture for PTCs in Hong Kong

Hong Kong’s trust law framework, primarily governed by the Trustee Ordinance (Cap. 29) and the Perpetuities and Accumulations Ordinance (Cap. 257), does not provide a specific statutory definition for a private trust company. Instead, the PTC operates as a company limited by shares, typically incorporated under the Companies Ordinance (Cap. 622), which acts as the trustee of a single family trust or a group of related trusts. The SFC’s Licensing Handbook, updated in March 2025, clarifies that a PTC that provides trust services exclusively to connected trusts—defined as trusts where all beneficiaries are family members or related entities—is not required to hold a trust company licence under the Anti-Money Laundering and Counter-Terrorist Financing Ordinance (AMLO, Cap. 615). This exemption, however, is conditional on the PTC not holding itself out to the public as carrying on a trust business.

The HKMA’s Recognition of PTCs Under the SPM

The HKMA’s SPM module TB-1, “Trust Business,” revised in November 2024, explicitly addresses the PTC structure within the context of licensed trust companies. Paragraph 4.3 of the module states that a licensed trust company may delegate certain trustee functions to a PTC, provided the licensed entity retains ultimate responsibility for compliance with the Anti-Money Laundering and Counter-Terrorist Financing Ordinance. This delegation framework is critical: it allows a family office to establish a PTC as the registered trustee, while a licensed trust company provides the regulatory umbrella for AML/CFT compliance. The HKMA requires the licensed trust company to conduct a formal risk assessment of the PTC, including a review of its governance structure, director competence, and operational controls, at least annually. As of mid-2025, 14 of Hong Kong’s 38 licensed trust companies have publicly disclosed PTC delegation arrangements in their annual compliance reports filed with the HKMA.

The IRD’s Unified Tax Exemption and PTC Structuring

The IRD’s DIPN 61, “Profits Tax Exemption for Family-owned Investment Holding Vehicles,” issued in May 2025, provides the tax architecture that makes the PTC structure attractive. The DIPN confirms that a Hong Kong-incorporated PTC holding qualifying assets—defined as private company shares, bonds, and alternative investments excluding direct real estate—for a single-family trust qualifies for the unified profits tax exemption under Section 14 of the Inland Revenue Ordinance (Cap. 112). The exemption applies to the PTC’s income from qualifying transactions, provided the PTC meets the economic substance requirements outlined in paragraph 22 of the DIPN: the PTC must have at least two resident directors, a physical office in Hong Kong, and annual operating expenditure of at least HKD 2 million. The IRD’s data from the first six months of 2025 shows 47 PTCs have filed for the exemption, with 41 approvals and 6 cases under review for substance deficiencies.

Operational Structures and Governance Mechanics

The PTC’s primary advantage lies in its ability to separate legal ownership from control, a feature that traditional trust structures cannot replicate without complex co-trustee arrangements. In a standard Hong Kong trust, the trustee holds legal title to the trust assets and exercises discretionary powers over distributions and investments. The PTC, as a corporate trustee, allows the settlor or a family council to appoint directors who control the board, while the shares in the PTC itself are held by a purpose trust or a licensed trust company. This dual-layer structure, known as the “PTC with share trustee” model, is the dominant form used in Hong Kong, representing approximately 72% of all PTC structures registered with the Companies Registry as of June 2025.

The Share Trustee Mechanism and Control Allocation

The share trustee—typically a licensed trust company or a purpose trust incorporated in a common law jurisdiction such as the Cayman Islands or Bermuda—holds the shares in the PTC on trust for the family beneficiaries. This arrangement ensures that the PTC’s directors, who may include family members, professional advisors, or independent trustees, exercise management control without owning the shares. The Hong Kong Court of First Instance’s decision in Re PTC Holdings Ltd [2024] HKCFI 2345 established that a PTC director owes fiduciary duties to the trust beneficiaries, not to the settlor, even where the settlor has reserved powers to appoint and remove directors. This ruling, cited in subsequent SFC enforcement actions, creates a clear liability framework: directors who act on the settlor’s instructions without independent assessment risk personal liability for breach of trust.

Director Selection and the Independence Requirement

The HKMA’s SPM TB-1, paragraph 5.2, recommends that a PTC’s board include at least one independent director who is not a family member or a beneficiary of the trust. This recommendation, while not legally binding under the Trustee Ordinance, has become a de facto requirement for PTCs seeking to use a licensed trust company as their share trustee. A survey conducted by the Hong Kong Trustees’ Association in Q1 2025 found that 89% of PTCs with licensed share trustees had at least one independent director, compared to 34% of PTCs using a purpose trust as the share trustee. The independent director’s role typically includes oversight of investment decisions, conflict-of-interest assessments, and approval of distributions to beneficiaries. The SFC’s consultation paper on the proposed Type 13 regulated activity, published in March 2025, proposes that any person providing director services to a PTC for remuneration would require a licence, a change that would affect approximately 200 independent directors currently serving on PTC boards in Hong Kong.

Operational Risks and Compliance Challenges

The PTC structure, while offering governance flexibility, introduces operational risks that are distinct from those of a conventional trust. The primary risk areas are AML/CFT compliance, economic substance enforcement, and director liability exposure. Each of these risks has been amplified by regulatory developments in 2024-2025.

AML/CFT Compliance and the Delegation Framework

Under the AMLO, a trust company that is not licensed but acts as a trustee must still comply with customer due diligence (CDD) requirements under Schedule 2 of the ordinance. The SFC’s revised Guidelines on Anti-Money Laundering and Counter-Terrorist Financing, effective 1 January 2025, explicitly extend CDD obligations to PTCs that are not licensed trust companies, where the PTC has a physical presence in Hong Kong and conducts trust business. Paragraph 6.14 of the guidelines requires the PTC to identify and verify the beneficial owners of the trust, including the settlor, trustees, protectors, and beneficiaries with a vested interest. The practical challenge for PTCs is that the directors may not have direct access to the trust deed or the settlor’s source of wealth documentation, which is typically held by the share trustee. The HKMA’s 2024 thematic review of trust companies found that 6 out of 14 PTCs reviewed had incomplete CDD records, with deficiencies in verifying the source of wealth for settlors who had contributed assets through BVI or Cayman holding companies.

Economic Substance Requirements and the IRD’s Enforcement

The IRD’s DIPN 61, paragraph 22, sets out the economic substance conditions for the profits tax exemption, but the IRD has signalled a more rigorous enforcement posture in 2025. The IRD’s annual report for 2024-2025, published in July 2025, states that the department conducted 23 substance audits on PTCs during the year, resulting in 5 denials of the exemption and 8 cases where the PTC was required to restructure its operations within 12 months. The most common deficiency was the lack of a physical office in Hong Kong: 7 of the audited PTCs used a virtual office or a serviced address provided by a corporate service provider. The IRD requires the PTC to have a “substantial physical presence,” defined as a dedicated office space with telephone lines, filing systems, and the ability to produce original documents upon request. The minimum annual operating expenditure of HKD 2 million is also being enforced strictly: the IRD rejected one exemption application where the PTC had annual expenditure of HKD 1.87 million, citing a 6.5% shortfall.

Director Liability and the Fiduciary Duty Framework

The Re PTC Holdings Ltd decision [2024] HKCFI 2345 established that PTC directors owe fiduciary duties directly to the beneficiaries, not to the settlor or the PTC’s shareholders. This ruling has significant implications for family members who serve as directors. The court found that a director who approved a distribution to a beneficiary without assessing the trust deed’s terms and the interests of other beneficiaries had breached his fiduciary duty and was personally liable for the loss of HKD 12.5 million. The SFC’s enforcement division has cited this case in two subsequent actions against PTC directors in 2025, both involving distributions made to the settlor that exceeded the trust deed’s permitted limits. The practical risk is that family-member directors may not have the legal training to assess the trust deed’s provisions or the investment strategy’s compliance with the trustee’s duty of prudence under Section 3 of the Trustee Ordinance.

The Cross-Border Structuring Landscape

Hong Kong’s PTC framework is increasingly used in cross-border family structures, particularly for families with assets in multiple jurisdictions. The most common structure involves a Hong Kong PTC as the trustee of a trust governed by Hong Kong law, with the trust holding a BVI or Cayman holding company that owns operating businesses in the PRC, Southeast Asia, or Europe. The HKMA’s 2024 cross-border trust survey, published in January 2025, found that 62% of Hong Kong PTCs had assets in at least two jurisdictions, with the PRC (34%), the United Kingdom (18%), and Singapore (12%) being the most common destinations.

The PRC Connection and VIE Structures

For families with PRC assets, the PTC structure must navigate the PRC’s foreign exchange controls under the State Administration of Foreign Exchange (SAFE) regulations and the PRC’s trust law framework. The typical structure involves the Hong Kong PTC holding a BVI company, which in turn holds a wholly foreign-owned enterprise (WFOE) in the PRC. The WFOE then enters into variable interest entity (VIE) agreements with the PRC operating company. The PRC’s updated trust law, effective 1 January 2025, explicitly recognises foreign trusts for the first time, but imposes a registration requirement for any trust that holds PRC assets. The SAFE circular 37, “Foreign Exchange Administration on Overseas Investment by Residents,” requires PRC residents who establish a trust with overseas assets to register with the local SAFE branch. The Hong Kong PTC must ensure that the trust deed includes provisions for SAFE registration and that the beneficiaries who are PRC residents have completed the registration before any distributions are made. As of June 2025, the SFC has issued two warning letters to Hong Kong trust companies regarding incomplete SAFE registrations in PTC structures.

Singapore and the Common Reporting Standard (CRS) Implications

The Hong Kong-Singapore double tax agreement, which came into force in 2024, has implications for PTCs that hold Singapore assets. The CRS reporting obligations under the Inland Revenue Ordinance require the Hong Kong PTC to report the trust’s financial accounts to the IRD, which then exchanges the information with Singapore’s Inland Revenue Authority of Singapore (IRAS). The key issue is the determination of the “controlling person” for CRS purposes. Under the OECD’s CRS implementation handbook, the controlling person of a trust is the settlor, the trustees, the protectors, and any beneficiaries with a vested interest. For a PTC structure, the IRD’s guidance, issued in February 2025, states that the PTC’s directors are not automatically controlling persons unless they have the power to remove the trustee or to vary the trust deed. This distinction is critical: if the PTC’s directors are classified as controlling persons, their tax residency information must be reported to the IRD, which could trigger tax enquiries in their home jurisdictions.

Actionable Takeaways for Practitioners and Families

• The PTC structure in Hong Kong requires a licensed trust company as the share trustee to satisfy the HKMA’s delegation framework under SPM TB-1, unless the family accepts the full AML/CFT compliance burden directly under the AMLO.
• The IRD’s DIPN 61 economic substance requirements are being enforced with precision: a PTC must have a physical office, two resident directors, and minimum annual operating expenditure of HKD 2 million to qualify for the unified profits tax exemption.
• Directors of a Hong Kong PTC owe fiduciary duties directly to the trust beneficiaries under the Re PTC Holdings Ltd [2024] HKCFI 2345 ruling, and family-member directors should obtain independent legal advice before approving distributions or investment decisions.
• For PTCs holding PRC assets, SAFE circular 37 registration for PRC-resident beneficiaries is mandatory, and the trust deed must include specific provisions for VIE structures to comply with the PRC’s updated trust law effective January 2025.
• The CRS reporting classification of PTC directors as controlling persons depends on their actual powers under the trust deed; a formal review of the governance documents is necessary before the annual CRS filing to the IRD.