The Relationship Between Trusts and Digital Services Taxes in Cross-Border Planning

The OECD’s Pillar One Amount A may be effectively stalled, but the domestic digital services taxes (DSTs) it was designed to replace are proliferating, not retreating. As of January 2025, 16 jurisdictions globally impose a form of DST, with rates ranging from 1.5% to 7.5% on gross revenues from specific digital activities, according to the Tax Foundation’s 2025 Digital Services Tax Tracker. For high-net-worth (HNW) families operating cross-border digital platforms—from e-commerce marketplaces to online advertising and data monetisation—this creates a structural friction: the trust structure designed for asset protection and succession planning may inadvertently become the taxable nexus for a DST liability. A VISTA trust in the BVI or a STAR trust in the Cayman Islands, holding shares in an operating company that derives revenue from users in a DST jurisdiction, can trigger a filing obligation even where no physical presence exists. The Hong Kong Monetary Authority (HKMA) has not issued a specific circular on DSTs as of 2025, but its 2023 guidelines on tax-risk management for private banking clients (HKMA Circular, 23 June 2023, “Management of Tax-Related Risks in Private Wealth Management”) explicitly require institutions to assess the tax implications of cross-border trust structures. The intersection of trust law and digital taxation is no longer a theoretical planning point—it is a compliance reality that demands precise jurisdictional mapping of revenue streams and trustee responsibilities.

The Mechanics of Digital Services Taxes and Their Jurisdictional Reach

Digital services taxes are not income taxes; they are gross-revenue levies imposed on specific categories of digital activity, typically targeting large multinational enterprises but increasingly capturing mid-market players. The defining characteristic of a DST is its extraterritorial reach: a tax liability can arise based on the location of the user, not the location of the service provider or the legal owner of the intellectual property.

Revenue Thresholds and Covered Services

The UK’s DST, effective from 1 April 2020, imposes a 2% levy on the revenues of search engines, social media platforms, and online marketplaces that derive at least GBP 25 million in “in-scope” revenues from UK users and have global revenues exceeding GBP 500 million (HM Revenue & Customs, Digital Services Tax Manual, DST11100). France’s DST, at 3%, applies to revenues from digital interface services, targeted advertising, and the sale of user data where the tax period’s worldwide revenues from such services exceed EUR 750 million and in-scope French-sourced revenues exceed EUR 25 million (Article 299, French Finance Act 2019). Italy’s DST, at 3%, mirrors the French scope but uses a EUR 750 million global threshold and EUR 5.5 million Italian-sourced threshold (Law No. 145 of 30 December 2018, Article 1, Paragraphs 35-50). For a family office holding a Cayman Islands STAR trust that owns a Hong Kong-incorporated operating company generating HKD 200 million in annual advertising revenue from UK users, the trust is not itself the taxpayer—but the operating company is. The trust’s distribution policy, however, must account for the DST liability as a deductible expense reducing distributable profits.

The Nexus Problem for Trust Structures

The critical issue for trust planners is that DSTs define “taxable presence” through user location, not legal establishment. A BVI VISTA trust that holds shares in a Singaporean company with a Hong Kong sales team and a server in Japan can still owe DST in France if French users generate EUR 30 million in targeted advertising revenue. The SFC’s 2024 “Guidelines on the Management of Tax Risks by Licensed Corporations” (SFC, January 2024) does not directly address DSTs, but its principle that “licensed corporations must ensure that their clients’ investment structures do not create unintended tax liabilities in jurisdictions where no economic substance exists” applies squarely. A trustee who fails to map the user-origin data of the trust’s underlying operating assets is exposed to a breach of fiduciary duty, not merely a tax penalty.

Trust Jurisdictions and DST Exposure: A Comparative Analysis

Not all trust jurisdictions are equally exposed to DST liabilities. The choice of trust situs—BVI, Cayman, Hong Kong, or Singapore—determines the legal framework for allocating tax costs between the trust and the operating company, and for managing the trustee’s disclosure obligations to DST authorities.

BVI VISTA Trusts and the Retention of Control

The Virgin Islands Special Trusts Act (VISTA), 2003 (as amended), allows a settlor to retain control over the management of a company held in trust without the trustee being required to intervene in the company’s affairs. This is structurally advantageous for DST planning: the trustee can argue that it has no operational control over the revenue-generating activities that trigger the DST. However, the BVI’s Economic Substance (Companies and Limited Partnerships) Act, 2018 (as amended), requires any entity conducting “relevant activity” to demonstrate economic substance in the BVI. Digital services are not explicitly listed as a relevant activity under the Act, but the BVI International Tax Authority (ITA) has taken the position that “intellectual property business”—which includes licensing of digital platforms—is caught. A VISTA trust that holds a BVI company licensing digital IP to a Hong Kong operator must ensure that the BVI company either outsources core income-generating activities to a BVI-based service provider or faces a penalty of USD 10,000 to USD 200,000 for non-compliance (BVI ITA, Economic Substance Guidance Note, Version 4.0, April 2023, Paragraph 5.3).

Cayman Islands STAR Trusts and the Segregation of Liability

The Special Trusts (Alternative Regime) Law (STAR Law), 1997 (as amended), permits the creation of a trust with an “enforcer” rather than a beneficiary with standing to enforce the trust. This is useful for DST planning because the trustee can segregate DST liabilities into a separate “tax sub-trust” within the STAR structure, ring-fencing the core family assets from any DST-related claims. The Cayman Islands’ Tax Information Authority Act, 2013 (as amended), however, requires the disclosure of beneficial ownership information to the Cayman Islands Department for International Tax Cooperation (DITC) for exchange under the Common Reporting Standard (CRS). A STAR trust that holds shares in a company with DST exposure in multiple jurisdictions must file CRS returns identifying the controlling persons—which may include the enforcer—creating a transparency chain that DST authorities can use to assess nexus. The Cayman Islands Monetary Authority (CIMA) has not issued specific DST guidance as of 2025, but its 2022 “Statement of Guidance on Tax Risk Management for Trust Service Providers” (CIMA, November 2022) requires trustees to “identify and document the tax jurisdictions in which the trust’s underlying assets generate revenue.”

Hong Kong Trusts and the Territorial Principle

Hong Kong’s trust regime, governed by the Trustee Ordinance (Cap. 29) and the Perpetuities and Accumulations Ordinance (Cap. 257), operates on a territorial basis for tax purposes: only profits sourced in Hong Kong are subject to profits tax at 16.5% (Inland Revenue Ordinance, Cap. 112, Section 14). A Hong Kong trust that holds shares in a Hong Kong operating company generating digital advertising revenue from Mainland China users is not subject to PRC DST because the PRC does not currently impose a standalone DST—it applies a 6% VAT on digital services under the 2019 E-Commerce Law. However, if the same trust holds shares in a Hong Kong company that derives revenue from UK users, the UK DST applies at 2% on gross revenues exceeding GBP 25 million from UK users, regardless of the Hong Kong situs. The Hong Kong Inland Revenue Department (IRD) has not issued a DST-specific interpretation as of 2025, but its Departmental Interpretation and Practice Notes (DIPN) No. 21 (Revised 2023) on “Profits Tax: Territorial Source Principle” confirms that the source of digital service revenue is determined by the place where the services are performed, not the location of the user. This creates a fundamental mismatch: the UK DST taxes based on user location, but Hong Kong’s territorial principle taxes based on service performance. A Hong Kong trust must therefore maintain dual accounting—one set for Hong Kong profits tax (service performance-based) and one for UK DST (user location-based).

Structuring Trust Distributions to Account for DST Liabilities

The most practical challenge for trust planners is not the DST itself, but the cash-flow timing and distribution mechanics. DSTs are imposed on gross revenue, not net profit, meaning they can consume a disproportionate share of operating cash flow in years where margins are thin.

The Gross Revenue Problem and Trustee Distribution Policies

A trust that holds a company with HKD 100 million in gross revenue from French users must pay 3% (EUR 3 million, approximately HKD 25.5 million at EUR/HKD 8.5) in French DST before any operating expenses, salaries, or capital expenditure. If the company’s net profit margin is 10% (HKD 10 million), the DST liability of HKD 25.5 million exceeds net profit by HKD 15.5 million. The trust’s distribution policy must explicitly state that DST liabilities are paid before any distribution to beneficiaries, and that distributions are calculated on “adjusted net profit” defined as net profit after DST. The BVI Trustee Act, 1961 (as amended), Section 59, allows a trustee to retain income to meet “contingent liabilities,” which includes reasonably anticipated DST assessments. A trustee who distributes HKD 10 million to beneficiaries without reserving HKD 25.5 million for the French DST is in breach of trust and personally liable for the shortfall.

The Refund and Dispute Mechanism

DSTs are often subject to legal challenges and refund mechanisms. France’s DST was found by the OECD’s Inclusive Framework to be inconsistent with international tax norms in 2021, but France has not repealed it; instead, it has offered a “tax credit” mechanism where DST paid can be offset against future corporate income tax if a multilateral solution is reached (French Tax Code, Article 235 ter ZE, Paragraph V). A trust that holds a company paying French DST must establish a separate “DST refund reserve” account, segregated from the trust’s general investment portfolio, to ensure that any refunds are returned to the company and not inadvertently distributed to beneficiaries. The SFC’s 2023 “Code of Conduct for Persons Licensed by or Registered with the Securities and Futures Commission” (SFC Code, Paragraph 16.3) requires licensed corporations to “maintain adequate records of all tax payments and refunds relating to client assets,” which applies to trust structures where the licensed corporation acts as investment manager.

The Role of the Enforcer in DST Compliance

In a Cayman Islands STAR trust, the enforcer—not the trustee—has standing to enforce the terms of the trust. This is operationally significant for DST compliance because the enforcer can be given the specific duty to monitor DST filings and payments. The STAR Law, Section 13, permits the trust instrument to confer on the enforcer “any power or duty that may be conferred on a trustee.” A well-drafted STAR trust deed for a family with digital service revenues should include a clause stating: “The Enforcer shall ensure that all Digital Services Tax returns are filed on a timely basis in each jurisdiction where the Trust’s underlying assets generate in-scope revenues, and shall report any material DST liability to the Trustee within 30 days of the liability arising.” This shifts the compliance burden from the trustee—who may lack operational knowledge of the digital business—to the enforcer, who is typically a family member or trusted advisor.

Actionable Takeaways for Cross-Border Trust Planners

1. Map user-origin revenue data for every operating company held in a trust structure to determine DST nexus in the UK, France, Italy, Spain, Austria, and Turkey—the six jurisdictions with active DSTs as of 2025—and update this mapping quarterly as user patterns shift.

2. Amend trust distribution policies to define “distributable income” as net profit after DST liabilities, and require the trustee to maintain a separate DST reserve account funded at 110% of the estimated annual DST liability.

3. Review the trust deed’s indemnity clause to confirm that the trustee is not personally liable for DST penalties arising from the operating company’s failure to file, and consider adding a specific “DST Compliance” schedule to the trust instrument.

4. For Cayman STAR trusts, appoint an enforcer with explicit authority and duty to monitor DST filings, and document this in a side letter signed by the settlor, trustee, and enforcer.

5. Engage a tax advisor in each DST jurisdiction where the trust’s underlying assets generate in-scope revenues, not a single global advisor, because DST interpretation varies by jurisdiction and local filing deadlines are non-negotiable.