Hong Kong Tax Lawyers: M&A, Cross-Border and Fund Tax Structuring

We provide clients with advice on corporate and international tax matters, from developing tailored strategies to ensuring compliance and navigating challenges.

Slotine advises private companies, family offices, private equity funds and technology businesses on Hong Kong tax structuring, from M&A and cross-border planning to Hong Kong’s concessionary regimes. Boutique law firm. Tax built into the transaction, not around it.

Multilingual (English, French, Cantonese). Cross-border via our international network. Direct partner access. Fee proposals within a few working days.

5% patent box
Concessionary IP tax rate
on eligible IP income (Ordinance 2024)
0% FIHV / carry
Family office regime (Ordinance 2023)
and carried interest concession (Schedule 16D)
16.5% standard
Profits tax for corporations,
8.25% two-tiered on first HK$2 million

Why Hong Kong Tax Matters for M&A, Funds and Family Capital

Hong Kong’s territorial tax system and its treaty network are the reason many transactions and investment structures anchor here. The rules that shape those transactions have moved fast: the family office concession in May 2023, the patent box in July 2024, a digital Certificate of Resident Status for the Mainland in November 2025, and a 2026 Bill in progress to broaden the carried interest regime.

For advisers and in-house teams, that pace makes tax a live workstream at deal moment, not something to bolt on after signing. A well-structured Hong Kong holding, a properly elected patent box, a qualifying single family office or a certified fund manager can change the effective tax outcome by tens of percentage points. Getting it wrong, or getting it late, is expensive.

Slotine sits in the space where legal structuring and tax meet. We advise on the entity choice, the substance, the certification and the treaty position at the same time as the transaction documents, because those decisions are inseparable in practice.

How a Slotine Tax Engagement Runs

Four phases, calibrated to the mandate size. Tax mandates run alongside our M&A, private equity and family office work.

Step 1
Scoping
We agree the objective (a specific transaction, a fund launch, a family office setup, a treaty relief claim) and the perimeter. Fee basis confirmed upfront: fixed, capped or scope-based, in writing before we start.
Step 2
Analysis
We map the applicable Hong Kong regimes to the client’s facts: profits tax vs concessionary rate, foreign-source position, treaty entitlement, substance and certification requirements. Where multiple regimes could apply (patent box vs FSIE), we set out the trade-offs.
Step 3
Structuring and drafting
Tax feeds directly into the deal documents (SPA warranties, LPA carry mechanics, FIHV constitutional documents, licensing chains). We prepare elections, CoR applications and supporting evidence at the same time.
Step 4
Filing and defence
We assist on profits tax return positions, respond to IRD assessing officer notifications and, where a treaty partner denies relief, engage on the Mutual Agreement Procedure through the Hong Kong competent authority.

Structuring a deal, a fund or a family office in Hong Kong? Speak to us at the scoping stage. That is where the tax leverage sits.

Speak to Slotine

What We Advise On

Hong Kong’s Key Tax Regimes in 2026

Three years of concessionary regimes and one Bill in progress. This is the terrain we work in.

May 2023 · FIHV
0% for eligible FIHVs
Introduced by the IR Amendment (Tax Concessions for FIHVs) Ordinance 2023, effective from year of assessment 2022/23. Requires HK$240m specified-assets threshold, 2 FTE in HK and HK$2m operating expenditure. Election is irrevocable.
July 2024 · Patent box
5% on eligible IP income
IR Amendment (Tax Concessions for IP Income) Ordinance 2024, enacted 5 July 2024. Concessionary rate on the qualifying portion of eligible IP income, calculated via the OECD nexus fraction F = (EE x 130%) / (EE + NE).
2020/21 onwards · Carried interest
0% under Schedule 16D
Schedule 16D of the Inland Revenue Ordinance. Eligible carry received by qualifying persons charged at 0% (profits + salaries tax), subject to HKMA certification and substance test (2 FTE, HK$2m).
June 2026 · 2026 Bill (in progress)
Carried interest broadened, subject to enactment
A Bill gazetted 12 June 2026 proposes to broaden the carried interest concession, remove HKMA certification and the hurdle rate. First Reading on 24 June 2026. Currently under LegCo scrutiny, not yet enacted.

Cross-Border Tax: Hong Kong, Mainland China and Europe

Families and businesses rarely sit in one place. Our tax practice coordinates the Hong Kong structure with the positions that matter across the client’s footprint.

Hong Kong and Mainland
Greater China

The Hong Kong to Mainland arrangement is central. We advise on the CoR three-year rule, treaty relief on cross-border dividends (STA Circular 2018 No. 9 beneficial owner test), royalty and interest withholding, and coordination with PRC counsel on structuring choices that affect both sides.

Hong Kong and Europe
European reach

Coordinating HK structures with European positions where relevant, including the France, Netherlands, Luxembourg and United Kingdom treaty networks, through our international network. Matters most for family offices with European members and groups with European portfolio companies.

Structuring across borders? We can align the Hong Kong tax position with your other jurisdictions.

Talk to us

Common Hong Kong Tax Mistakes We See

Mistake 1
Treating the concessions as automatic. The FIHV, patent box and carried interest regimes all require substantive conditions and, in most cases, a written election. Missing a threshold or an irrevocable election deadline can lose the concession for the year.
Mistake 2
Underestimating substance. Two full-time qualified employees in Hong Kong and HK$2 million of operating expenditure are minimums, not targets. They must match the level of activity that actually justifies the concession, and be documented.
Mistake 3
Leaving the CoR to the last minute. The IRD’s 21 working day target assumes a properly completed application. For Mainland claims, the beneficial owner analysis under STA Circular 2018 No. 9 must be prepared in advance.
Mistake 4
Treating patent box IP as any IP. Only patents, plant variety rights and copyrighted software qualify, and only where generated from an R&D activity. Acquisition costs are non-eligible and dilute the R&D fraction.
Mistake 5
Confusing the patent box with the FSIE regime. They are separate regimes with different conditions. On foreign-sourced IP income, the choice between them is fact-specific and needs to be modelled before election.

Timeline and Fees

Tax mandates vary enormously in size, from a single CoR application to a full family office setup or a cross-border acquisition. We scope each engagement and agree the fee basis in writing before we begin.

Advisory memos and second opinions are typically delivered in one to three weeks, on a fixed or capped fee.

CoR applications track the IRD’s 21 working day target, plus preparation time for the beneficial owner analysis and supporting documents.

Family office setups and FIHV/FSPE elections run alongside the corporate formation, typically several weeks between mandate and first tax filing, on a scope-based fee.

Carried interest structuring, patent box elections and M&A tax structuring are integrated into the underlying transaction timeline. Fees are proposed after scoping, on a fixed or capped basis where possible.

Why Slotine for Your Hong Kong Tax

Boutique focus. A small partnership, direct partner access, no juniorised handling. Tax is one of a small set of practice areas we run at depth, not an add-on service.

Legal and tax integrated. Our tax analysis moves with the M&A, private equity, family office and IP work rather than sitting in a separate compliance stream. The tax outcome is settled inside the transaction, not around it.

Cross-jurisdictional practice. Hong Kong and European reach coordinated within one relationship, through our international network, rather than a series of unmanaged referrals.

Published depth. A body of practitioner guides on the FIHV regime, the patent box, carried interest and treaty relief stands behind the advice.

Written fee proposals. Every engagement is scoped and priced in writing before we start. Fixed or capped fees where the scope allows.

Related Insights and Resources

Advising on a deal, a fund or a family structure? Let us map the Hong Kong tax position with you.

Contact Slotine

Maëva Slotine

Founding Partner

Who we act for

  • Private companies and corporate groups
  • Family offices and HNWI
  • Private equity funds and managers
  • Technology and IP-heavy businesses
  • Cross-border investment groups

Fee structure

  • Fixed fees on scoped mandates
  • Capped fees on transactions
  • Written proposal before we start
  • Direct partner access

Frequently Asked Questions

  • Profits tax is charged at 16.5% for corporations, with a two-tiered rate of 8.25% on the first HK$2 million of assessable profits. Several concessionary regimes reduce this to 5% or 0% for qualifying activities.

  • An eligible family-owned investment holding vehicle (FIHV) managed by an eligible single family office can be charged at 0% profits tax on qualifying transactions. The regime requires specified assets of at least HK$240 million, at least two full-time employees in Hong Kong and at least HK$2 million of operating expenditure.

  • A Certificate of Resident Status (CoR) is the standard proof of Hong Kong residence when claiming benefits under a double taxation agreement. It evidences residence, though the treaty partner still applies its own conditions before granting relief.

  • On election, the qualifying portion of eligible intellectual property income is charged at 5%. The qualifying portion is set by the R&D fraction under the OECD nexus approach, so the relief is tied to the research and development actually carried out.

  • Under Schedule 16D, eligible carried interest received by qualifying persons can be charged at 0%, subject to HKMA certification and a substance test. A Bill gazetted in June 2026 proposes to broaden the concession and is currently under scrutiny in the Legislative Council.

  • Yes. We build the tax analysis into the transaction alongside due diligence and the deal documents, so the treatment is settled before completion.

Search for...
Privacy Overview

Slotine respects your privacy and commit to protecting it through our compliance with the practices described in its privacy policy statement.

This statement describes our practices for collecting, using, maintaining, protecting, and disclosing the personal data we may collect from you or that you may provide when you visit our website or other digital properties, communications, or forms that link or refer to this statement (our “Website”). This statement applies to the personal data collected through our Website, regardless of the country where you are located.

The Website may include links to third-party websites, plug-ins, services, social networks, or applications. Clicking on those links or enabling those connections may allow the third party to collect or share data about you. We do not control these third-party websites, and we encourage you to read the privacy statement of every website you visit.

Please read this statement carefully to understand our policies and practices for processing and storing your personal data. By engaging with our Website, you accept and consent to the practices described in this statement. This notice may change from time to time (see Changes to Our Privacy Notice). Your continued engagement with our Website after any such revisions indicates that you accept and consent to them, so please check the statement periodically for updates.

More information about our privacy policy.