Where unwinding or simplifying a legacy offshore structure stands now

Unwinding or simplifying a legacy offshore holding structure is, at its core, a substance and beneficial-ownership problem dressed in corporate law. The governing question is not which entities to remove from the chart but whether the resulting structure can withstand scrutiny under economic-substance rules, treaty-access conditions, and the beneficial-ownership disclosure regimes that have taken effect across the principal offshore centres and Hong Kong itself since 2018. The risk sits in the gap between what the structure looks like on paper and what it actually does in commercial life.

Most legacy structures were assembled in a different era. A BVI holdco above a Hong Kong intermediate above a Mainland operating company made obvious sense when substance requirements were thin, treaty access was largely automatic, and beneficial-ownership registers were confidential or non-existent. That environment is gone. What replaced it is a set of interlocking obligations – economic-substance conditions in the offshore centre, foreign-sourced income exemption conditions in Hong Kong, Pillar Two exposure for larger groups, and a Significant Controllers Register that sits in the Companies Registry – that together make the old chart either expensive to maintain properly or legally hazardous to leave alone.

This analysis sets out where the cross-border position actually stands: the commercial stakes, the governing instruments, the comparative read across Hong Kong and the offshore tier, and our assessment of where the risk concentrates for groups that have not yet acted.

What is commercially at stake when a structure stops serving its purpose?

The first thing to understand is that a legacy structure does not simply become inefficient. It becomes a liability. An offshore entity that was once a clean holding vehicle can, over time, accumulate dormant subsidiaries, historic intercompany loans, stale resolutions, and a registered agent who has not heard from the beneficial owner in years. Each of those details is a potential adverse inference in a tax authority examination, a due diligence review, or an enforcement proceeding.

The commercial stakes are threefold. First, treaty access. Hong Kong has a network of comprehensive double taxation agreements with the Mainland and a growing number of other jurisdictions. That access depends on a Hong Kong entity satisfying residence and, increasingly, substance conditions. An entity that exists only on paper – with no local management, no genuine economic activity, no physical presence – is at risk of being denied treaty benefits under the principal-purpose test that most modern treaties now incorporate. The upstream offshore tier faces an equivalent risk under the economic-substance rules of the BVI and Cayman Islands.

Second, tax efficiency on income flows. The foreign-sourced income exemption regime – which has applied to Hong Kong entities receiving certain offshore income since 1 January 2023 – conditions the exemption on the entity meeting economic-substance requirements. An intermediate holding company that merely passes dividends upward without any local management activity may find that income drawn into scope under the amended rules. Larger groups face the additional pressure of the Pillar Two minimum top-up tax, which applies to multinational enterprise groups (consolidated revenue at or above EUR 750 million) for fiscal years beginning on or after 1 January 2025.

Third, transaction readiness. A buyer, a lender, or a listing sponsor conducting cross-border due diligence on a group with a tangled legacy structure will price in the remediation cost – or walk. We have seen mid-market acquisitions delayed and financing processes stalled because the seller's BVI entities had not filed economic-substance declarations, or because the beneficial-ownership chain could not be documented cleanly for the purposes of a Significant Controllers Register review.

What governing instruments define the unwinding exercise?

The unwinding exercise sits at the intersection of several instruments, each of which operates at a different level of the structure. Getting the sequence right requires mapping which instrument governs which layer.

At the Hong Kong layer, the Companies Ordinance governs the mechanics of striking off, voluntary winding-up, and the maintenance of the Significant Controllers Register. The SCR requirement – in force since 1 March 2018 – means that every Hong Kong-incorporated company must maintain an up-to-date record of its significant controllers, being individuals with a defined level of ownership or control. A group unwinding its offshore tier without first mapping that beneficial-ownership chain risks leaving the Hong Kong intermediate with an SCR that is either blank or inaccurate, both of which carry regulatory exposure.

The foreign-sourced income exemption, introduced under the Inland Revenue Ordinance, governs the tax treatment of dividends, interest, royalties, and gains flowing through a Hong Kong entity from offshore. It does not automatically exempt such income. It requires the entity to satisfy substance conditions – broadly, that it is adequately staffed, funded, and managed in Hong Kong for the relevant activity. A simplified structure where the Hong Kong entity takes on consolidated holding functions must therefore be resourced to match.

At the offshore tier, the BVI Business Companies Act and its accompanying economic-substance regime, and the Cayman Islands Companies Act with equivalent substance obligations, set the conditions for maintaining offshore entities without triggering an adverse substance finding. Both regimes apply to entities conducting a relevant activity – which includes holding-company business. The holding-company substance test is lighter than the test for active business functions, but it is not zero. The entity must be managed and directed in the jurisdiction, and core income-generating activities must be conducted there in proportion to the activity actually carried out.

For groups with Mainland exposure, the cross-border angle runs through the arrangements between Hong Kong and the Mainland on mutual recognition and enforcement. The Mainland Judgments in Civil and Commercial Matters (Reciprocal Enforcement) Ordinance took effect on 29 January 2024, broadening the basis on which effective Mainland civil judgments can be registered in Hong Kong and vice versa. For an unwinding exercise, the relevance is indirect but real: intercompany loans or claims that sit within the structure may become actionable across the boundary in ways that were previously uncertain, and any dispute arising during an unwinding should be mapped against that new enforcement environment.

How does the cross-border interface actually bite?

The interface between Hong Kong and the offshore tier is where most of the execution risk lives. Consider the sequence of a typical simplification: a group wants to collapse a BVI holdco into its Hong Kong intermediate, eliminating one layer and bringing beneficial ownership closer to the operating level. That looks simple on paper. In practice, it raises at least four cross-border questions simultaneously.

First, what happens to treaty access during the transition? If the BVI holdco holds shares in a Hong Kong entity that in turn holds shares in a Mainland subsidiary, the dividend flow from the Mainland subsidiary may be priced against the applicable tax arrangement between Hong Kong and the Mainland. Collapsing the BVI layer may not change the ultimate beneficial owner, but it changes the entity that sits directly above the Hong Kong intermediate – and any change in the chain must be assessed against the principal-purpose test before it is executed, not after.

Second, what stamp duty exposure arises? Under the Stamp Duty Ordinance, a transfer of Hong Kong stock attracts ad valorem duty at 0.1% per party – effectively 0.2% in total – on the higher of consideration or market value. The shares of a non-Hong Kong company holding no Hong Kong-situated assets are generally outside that charge, but a group simplifying its structure by transferring subsidiaries across layers must map the stamp duty position carefully. A step that looks like a technical reorganisation may involve a chargeable transfer if any of the underlying assets are Hong Kong-situated shares or property.

Third, how are intercompany balances resolved? Legacy structures frequently carry intercompany loans, management fee accruals, and tax-indemnity obligations that have accumulated over years. Unwinding entities without clearing or documenting these balances creates the risk that a successor entity – or a tax authority – treats the balances as undisclosed income or a deemed distribution. In our cross-border practice, we regularly see groups discover, during the unwinding process, that intercompany loans were never put on arm's length terms or were not documented at all.

Fourth, does the unwinding trigger a reporting obligation in any of the jurisdictions engaged? Common reporting standard obligations, country-by-country reporting, and domestic beneficial-ownership filing requirements may all be triggered by a restructuring event. The timing of those obligations must be mapped before the first corporate step is taken.

The sequence above describes the standard position. Your matter turns on the documents, the jurisdictions actually engaged, and the order of steps – which is where the route is won or lost. For a structured read of how the cross-border interface applies to your structure, write to us at info@lockhartyip.com.

What does a comparative read across the two systems reveal?

Comparing the Hong Kong and offshore positions side by side reveals a structural divergence that the legacy structure often obscures. Hong Kong is a common-law, territorial-tax jurisdiction with a well-tested treaty network, a professional regulatory environment, and a court system – anchored by the Court of Final Appeal – that is both accessible and predictable. The offshore tier – BVI, Cayman – offers flexibility of form but increasingly demands substance in fact.

The gap between the two has narrowed significantly since 2019. The offshore economic-substance regimes that came into force across the BVI and Cayman Islands in response to international pressure from the EU and the OECD did not replace the offshore tier with something as demanding as a full-substance jurisdiction. But they did eliminate the position where a holding entity could exist with nothing but a registered agent address and a filing cabinet of resolutions. The holding-company test, while lighter than the test for other relevant activities, requires board meetings in the jurisdiction, minutes maintained locally, and a genuine nexus between the legal seat and the management function.

Hong Kong, by contrast, has moved in the direction of requiring more substance precisely to preserve its treaty access and its status as a preferred holding hub. The FSIE amendments, the Pillar Two implementation, and the SCR regime all point in the same direction: the Hong Kong entity must be a genuine economic presence, not a letter-box intermediary.

The practical implication for a group deciding whether to simplify its structure is this. If the offshore tier is already meeting its substance test – managed and directed in the BVI or Cayman, board meetings held locally, adequate local infrastructure – then collapsing it into the Hong Kong intermediate removes a layer that was working. That may be sensible for other reasons – cost, governance clarity, transaction readiness – but it is not an automatic simplification of the substance burden. It relocates that burden onto the Hong Kong entity.

If the offshore tier is not meeting its substance test – and in our experience of reviewing legacy structures, a significant proportion are not – then the choice is between remediation of the offshore entity or an orderly unwinding. Remediation means building genuine substance into the offshore jurisdiction: local directors with real decision-making authority, board meetings conducted in the jurisdiction, records maintained locally. For a pure holding entity with no active business, that is achievable but not free. Unwinding, by contrast, means accepting that the entity has served its purpose and engineering a clean exit – which requires the same mapping exercise as a simplification, but with a defined end-state.

Where does the risk actually concentrate?

Our desk sees three consistent concentrations of risk in legacy offshore structures that have not been reviewed since the substance and beneficial-ownership regimes came into force.

The first is treaty-access vulnerability. A Hong Kong entity that claims the benefit of the Mainland-HK comprehensive arrangement on dividend or royalty income must be able to demonstrate that it is the beneficial owner of that income and that its principal purpose is not to obtain treaty benefits. Where the structure has multiple layers with no economic function other than to hold shares, a tax authority examining the arrangement has a ready basis to deny the benefit. That denial can apply retroactively to income already distributed, not merely to future flows.

The second is beneficial-ownership opacity. The SCR requirement places a positive obligation on Hong Kong companies to maintain accurate, current records of significant controllers. A legacy structure where the beneficial owner is several offshore layers removed – and where those layers are held by nominees or structures whose current beneficial-ownership position cannot be quickly documented – leaves the Hong Kong entity in an SCR position that is difficult to defend. The risk is not merely a regulatory fine; it is the reputational and due-diligence exposure that arises when a bank, a counterparty, or a regulator asks for documentation that the entity cannot produce.

The third is enforcement reach. With the Mainland Judgments Ordinance in effect since 29 January 2024, the ability of a Mainland counterparty to pursue assets held within a Hong Kong entity – or to register a Mainland judgment against a Hong Kong intermediate – has materially increased. A legacy structure that was designed with an older enforcement map in mind may no longer provide the asset protection it was assumed to offer. The cross-border enforcement position must be assessed against the current rules, not the rules that applied when the structure was assembled.

If an earlier review, filing, or structuring exercise produced an unclear or adverse result, a second read of the structure can identify where the exposure sits and what steps remain available. Write to us at info@lockhartyip.com.

What do groups with these structures most commonly get wrong?

The most consistent mistake is treating a legacy-structure review as a corporate housekeeping exercise rather than a cross-border legal and tax analysis. The result is that groups appoint a registered agent or a company-secretarial firm to strike off dormant entities, without first mapping the tax, beneficial-ownership, and enforcement consequences of each step.

Striking off a BVI entity that holds intercompany loans does not extinguish those loans. It may, depending on the applicable governing law, cause them to vest in the Crown or the relevant offshore authority, or it may leave them in a legally indeterminate state that a tax authority treats as a deemed distribution. The governing law of the intercompany agreement – which is often not documented at all in legacy structures – determines the consequence.

A second common error is sequencing the offshore steps before the Hong Kong steps. The offshore entity should not be wound up or struck off until the Hong Kong intermediate is ready to receive, or has already received, whatever assets or positions are being transferred. Where the Hong Kong entity needs to build substance to satisfy FSIE conditions or treaty-access requirements, that substance must be in place before income starts flowing through the simplified structure. Doing it the other way around means that the structure is, for a period, both simplified and non-compliant.

Consider a mid-market manufacturing group with a BVI holdco above a Hong Kong intermediate above a Mainland joint-venture operating company. The group had not updated its SCR since 2019. Its BVI entity had never filed an economic-substance declaration for the period in which the regime applied. When a prospective acquirer ran cross-border due diligence in late 2024, both gaps surfaced within the first week of the review. The remedy required a retrospective substance assessment for the BVI entity, an SCR correction at the Hong Kong level, and a renegotiation of the transaction timeline. None of those steps were technically complex; all of them were avoidable.

A third error, specific to groups with Mainland operating companies, is failing to document the rationale for the offshore layer at the time the structure was assembled and then failing to update that documentation as the structure aged. Tax authorities examining cross-border structures are not satisfied by a structural diagram. They require evidence of the business purpose, the economic function, and the management activity at each layer. A legacy structure with no contemporaneous documentation – no board minutes in the offshore jurisdiction, no substance records for the Hong Kong intermediate – cannot produce that evidence, and the absence is treated as a negative inference.

How should a group approach the unwinding or simplification decision?

The decision between simplification – reducing layers while keeping a version of the structure – and full unwinding – collapsing to a direct holding position – depends on four variables: the treaty-access position, the beneficial-ownership complexity, the intercompany balance sheet, and the transaction horizon.

Where treaty access matters – because the group receives dividends, royalties, or other income that benefits from a reduced withholding rate under the Mainland-HK arrangement or another applicable agreement – simplification is generally preferable to full unwinding. The Hong Kong intermediate can be built into a genuine substance entity, and the offshore layer can either be remediated or dissolved in a sequence that does not interrupt the income flow or trigger a treaty-access gap.

Where treaty access is not the driver – because the group's income flows are already taxed at source, or because the offshore entity holds only equity in entities that pay no dividend – the cost-benefit of maintaining the offshore layer shifts. The economic-substance filing obligations, the registered agent costs, the director fees for genuinely independent local directors, and the ongoing compliance burden must be weighed against whatever residual benefit the offshore layer provides. For many legacy structures assembled before the substance era, that calculation now favours unwinding.

Where beneficial-ownership complexity is high – multiple settlors, multiple generations of a family, trust structures sitting above the offshore entity – a full unwinding may not be feasible without a prior restructuring of the beneficial-ownership chain. The unwinding must follow the beneficial-ownership map, not precede it. In those situations, the correct sequence is: map the current beneficial-ownership position accurately; document it against the SCR and any applicable trust law; identify the end-state structure; then work backward to the steps required to reach it.

Where the transaction horizon is short – a sale, a listing, or a financing is planned within 12 to 18 months – the priority is transactional cleanliness over structural elegance. A buyer or a sponsor will not wait for a multi-step simplification to be completed. The group must triage: which structural issues are material to the transaction, and which can be disclosed and managed? A cross-border legal team that understands both the Hong Kong and the offshore layers can make that triage quickly and document it in a form that satisfies a cross-border due diligence process.

Our desk regularly advises international groups, founders, and family offices on this sequence. In our cross-border practice, we have worked through legacy structures across the BVI, Cayman, Hong Kong, and Mainland layers, mapping the substance, treaty, and beneficial-ownership position at each tier before the first corporate step is taken.

Where is this heading?

The direction of travel is clear. The gap between holding structures that work on paper and structures that can demonstrate genuine substance and clear beneficial ownership is closing, and it is closing through enforcement rather than through further legislative change. The instruments are largely in place. What is increasing is the frequency and sophistication with which they are applied.

For Hong Kong specifically, the FSIE regime as amended continues to be applied to situations that test the boundary between genuine holding activity and passive income-stripping. The Inland Revenue Department has indicated its intention to examine economic-substance claims on a case-by-case basis, rather than accepting self-assessed declarations at face value. Groups that cannot point to genuine management activity in Hong Kong – board meetings with real decision-making authority, local professional staff engaged on the relevant function, records maintained in Hong Kong – will find that the exemption is less available than the original legislative text suggested.

For the offshore tier, the trend is toward greater transparency rather than less. Beneficial-ownership registers in the BVI and Cayman Islands have moved, at different speeds, toward access for regulatory and law-enforcement purposes. The political economy of offshore secrecy has shifted decisively since 2018, and legacy structures assembled on the assumption of persistent confidentiality carry a risk that the beneficial-ownership position will become visible in ways the original designer did not contemplate.

For enforcement, the expanded mutual-recognition and enforcement position between Hong Kong and the Mainland – and the broadly framed foreign states immunity doctrine now applied under the PRC law that took effect on 1 January 2024 – means that assets held within a cross-border structure are more reachable than they were even three years ago. A structure that was designed to hold assets at arm's length from potential Mainland creditors must be assessed against the current enforcement map, not the map of a decade ago.

The conclusion for groups that have not reviewed their legacy offshore structures is straightforward: the cost of not acting is now higher than the cost of acting. The regulatory, tax, and enforcement environment has shifted to a position where a structure that is not actively maintained and properly documented is a liability, not an asset. The question is not whether to review – it is how to sequence the review to minimise disruption and preserve the commercial benefits that the structure was assembled to deliver.

For further detail on how the holding structures practice approaches this work, or to read our briefing on the double-tier BVI–Hong Kong holding structure and our analysis of holding structures for family-owned groups through the Cayman Islands, see the relevant pages on this site.

Related practices

• Tax Positions – treaty access, FSIE conditions, and Pillar Two exposure for cross-border groups
• Private Wealth – beneficial ownership, trust structures, and succession planning across jurisdictions
• M&A & Transactions – cross-border due diligence and transaction structuring through Hong Kong

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Related

• Holding Structures
• Double Tier Bvi Hong Kong Holding Structure Briefing 2
• Holding Structure Family Owned Group Cayman Islands Cayman 4

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