Matter note: treaty access between Hong Kong and the Cayman Islands

The Cayman Islands has no income tax. That fact is well understood. What is less understood is that a Cayman holding entity sitting above a Hong Kong operating company does not, by that arrangement alone, gain access to Hong Kong's treaty network. The access question is a Hong Kong question – resolved by whether the entity receiving the income can demonstrate sufficient substance and connection to justify the position taken under the Inland Revenue Ordinance and Hong Kong's bilateral agreements.

Treaty access between Hong Kong and the Cayman Islands turns on the substance and source analysis conducted in Hong Kong, not on Cayman registration or absence of Cayman tax. The governing instrument is the Inland Revenue Ordinance, and the foreign-sourced income exemption (FSIE, the regime requiring economic substance for certain passive income flows to qualify for preferential treatment) sets the analytical threshold. The position must be built at the level of the Hong Kong entity, not at the offshore holding company.

This matter note sets out an anonymised cross-border structuring instruction received by our desk, the issue that stalled the original plan, the route chosen, and the lesson transferable to similar positions.

What was the situation?

A mid-sized Asian industrial group had operated a multi-tier holding structure for several years. The ultimate holding company was incorporated in the Cayman Islands. Beneath it sat a Hong Kong intermediate holding company, which in turn held operating subsidiaries across several Asian markets.

The group's treasury function routed dividend and interest flows up through the Hong Kong intermediate company to the Cayman parent. For a period, this arrangement was managed without a formal treaty-access analysis, on the assumption – common in our experience – that the Cayman entity's zero-tax status made the question academic.

That assumption was tested when the group began exploring an acquisition in a jurisdiction that had concluded a double taxation agreement with Hong Kong but not with the Cayman Islands. The target jurisdiction's local counsel flagged that the reduced withholding rate under the Hong Kong agreement would apply only if the Hong Kong entity was the beneficial owner of the relevant income and could demonstrate that the arrangement was not structured principally to access the treaty.

At that point, the group's in-house team engaged our desk. The question was specific: could the existing structure support a treaty-access position, and if not, what changes were required?

What was the cross-border problem?

The structural complexity here is typical of the Hong Kong – Cayman Islands interface. The Cayman Islands is not a treaty jurisdiction. It has no network of double taxation agreements of its own. When a Cayman entity is the ultimate recipient of income flowing from or through Hong Kong, that entity cannot independently claim treaty protection. The question then moves down one tier: can the Hong Kong intermediate entity claim the benefit as beneficial owner under the relevant agreement?

Beneficial ownership is the first test. Under the treaty interpretation principles applied in Hong Kong's bilateral agreements – which follow the OECD Model Tax Convention (the international standard on which most of Hong Kong's agreements are based) – a conduit entity that receives income and is obliged, contractually or in practice, to pass it upward will not qualify as beneficial owner. The intermediary must have the genuine economic right to the income.

The second test is the principal purpose test, or PPT, which features in Hong Kong's more recent bilateral agreements as an anti-avoidance provision. Where one of the principal purposes of an arrangement is to obtain a treaty benefit, that benefit may be denied.

In the matter before our desk, the Hong Kong intermediate company had been capitalised and maintained with some care, but several features of the existing arrangement created exposure. Board decisions on dividend policy were taken at the Cayman level. The Hong Kong company's bank accounts received and remitted income in a pattern that indicated limited discretion. And the written agreements between the Hong Kong and Cayman entities did not clearly establish the Hong Kong company's right to retain or apply the income independently.

The problem was not the Cayman structure itself. It was the governance and documentation at the Hong Kong level, which had been allowed to lag behind the structural intent.

How did the issue surface, and what was the turning point?

Our review began with the corporate documents and intercompany agreements. What we found was a gap between the structure as described in the group's internal presentations and the structure as evidenced in the documents. The Hong Kong company held assets and received income. But the evidence of independent decision-making was thin.

The turning point came during a review of board minutes. Minutes of the Hong Kong company's directors' meetings for the preceding two years contained a single recurring resolution: to distribute all receipts upward in accordance with instructions from the parent. There was no recorded analysis of the Hong Kong company's own commercial position, no documented exercise of discretion, and no record of any meeting in Hong Kong itself. In our cross-border practice, this pattern is one of the most common governance failures in multi-tier structures. It does not necessarily defeat the structure, but it makes a treaty-access position difficult to defend.

A second issue arose from the group's approach to the FSIE regime. The foreign-sourced income exemption, in force from 1 January 2023 as amended, imposes economic-substance conditions on passive income – including dividends and interest – received by a Hong Kong entity from an offshore associated entity. The regime determines whether such income is chargeable to profits tax in Hong Kong and under what conditions a Hong Kong entity can receive it without triggering a charge. The group had not undertaken the FSIE analysis. This was not a filing failure; no return had been submitted that relied on the exemption. But the absence of the analysis meant the group could not demonstrate, if asked, that the conditions were met.

That gap became the operational priority, because the proposed acquisition would generate new income flows that would land directly in scope.

What route was chosen?

The remediation plan had three components, implemented in sequence.

First, the governance of the Hong Kong intermediate company was restructured. Directors with genuine decision-making authority and a connection to Hong Kong were identified. A board calendar was established. The terms of reference for board meetings were rewritten to require the directors to assess and document the Hong Kong company's own commercial position before approving any upward distribution. Meeting records were regularised. None of this required changes to the Cayman holding structure.

Second, the intercompany agreements were revised. The existing arrangements between the Cayman parent and the Hong Kong intermediate company were replaced with documents that clearly identified the Hong Kong entity as the recipient and controller of dividend income from the downstream subsidiaries. The new agreements distinguished between the Hong Kong company's own distribution decisions and any separate arrangements at the Cayman level. This distinction matters for beneficial-ownership analysis: the question is whether the Hong Kong entity can, in practice, say no to the upward flow.

Third, a formal FSIE substance assessment was conducted. Our desk worked with the group to map the economic-substance conditions against the Hong Kong company's actual activity – the nature of its investment decisions, where those decisions were made, and the adequacy of the human and operational resources in Hong Kong. The assessment produced a documented position that the group could refer to when preparing its profits tax return for the first year in which the new acquisition income would flow.

The treaty-access question for the new acquisition was addressed separately. The relevant bilateral agreement was reviewed in full. The principal purpose test provisions were analysed against the group's documented commercial rationale for the Hong Kong holding entity. A position paper was prepared that set out the basis on which the Hong Kong company could assert beneficial ownership and establish that the arrangement was not structured principally to access the treaty. That paper was held internally as a filing-support document.

For a structured assessment of treaty access and FSIE substance across the Hong Kong – Cayman Islands interface, write to us at info@lockhartyip.com.

What was the outcome, and what is the transferable lesson?

The acquisition proceeded. The group filed its profits tax return for the first affected year with a documented FSIE substance position. The treaty-access position for the new acquisition jurisdiction was supported by the position paper. No formal challenge was made. That is the qualitative outcome: a structure that had operated with governance gaps was regularised, and a forward position was documented before the income flows commenced.

The transferable lesson is this. The value of a Hong Kong – Cayman Islands holding structure is not inherent in the combination of the two jurisdictions. It is built or lost at the Hong Kong level, through the quality of decision-making, documentation, and substance analysis conducted there. A Cayman holding company above a Hong Kong intermediate entity does not create treaty risk by itself. But it does create a governance test: can the Hong Kong entity demonstrate that it is more than a conduit?

In our cross-border practice, we regularly advise groups on structures where the Cayman element is sound and the Hong Kong element has simply not kept pace. The remediation is almost always possible. The question is whether it is done before the income flows commence or after a question has been raised.

A related point concerns timing. The FSIE regime introduced economic-substance conditions that are assessed on an ongoing basis, not as a one-time exercise at the point of structuring. A group that establishes adequate substance in year one must maintain and document that substance in subsequent years. This is a recurrent compliance obligation, not a structural sign-off.

A mid-market European holding group with Cayman and Hong Kong layers came to our desk in late 2026, having received a query from the Inland Revenue Department about the substance of its Hong Kong intermediate holding company. The query related to a tax year in which the company had received a significant inter-company dividend. The group had substance in year one but had not maintained its documentation in subsequent years. We assisted in reconstructing the contemporaneous record and preparing the group's response. The matter was resolved without additional assessment. But the cost – in time and in management attention – was substantially greater than it would have been had the documentation been maintained from the outset.

If an earlier structure or filing approach has produced an adverse result or an open query, a second assessment can identify the issue and the routes still available. Write to us at info@lockhartyip.com.

The distinction between a viable Hong Kong – Cayman Islands structure and a vulnerable one is not usually found in the choice of jurisdiction or the terms of incorporation. It is found in the board minutes, the intercompany agreements, and the substance analysis. Those are the documents a treaty-access position is ultimately built on.

For further background on the FSIE regime and its application to cross-border income flows, see our guide at Tax position: cross-border dividend or interest flow. For an overview of our approach to treaty access questions through the Hong Kong holding structure, see Treaty access between Hong Kong and the Cayman Islands.

Related practices

• Tax Positions – source and substance analysis, FSIE, treaty access and Pillar Two positioning
• Holding Structures – review and restructuring of multi-tier holding arrangements across Hong Kong and offshore centres

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• Tax Positions
• Treaty Access Between Hong Kong Cayman Islands Cayman 3
• Tax Position Cross Border Dividend Or Interest Flow 3

This publication is general information and does not constitute legal advice. For advice on your situation, contact info@lockhartyip.com.