Foreign and Cross-Border Company Structures in Hong Kong: Registration, Branch, Subsidiary, Re-domiciliation
Explore the options for foreign companies in Hong Kong: Part 16 registration, branch vs subsidiary, representative office, and re-domiciliation.
Foreign and Cross-Border Company Structures in Hong Kong
A foreign company entering Hong Kong chooses from four legal structures. It can register as a non-Hong Kong company under Part 16 of the Companies Ordinance (Cap. 622), incorporate a local subsidiary, establish a representative office, or inwardly re-domicile. Each structure is covered in detail on its own page. The focus here is on the differences that a business owner or adviser needs to understand before choosing a route.
Part 16 Registration (Branch)
A company incorporated outside Hong Kong that establishes a place of business in Hong Kong must register under Part 16 of the Companies Ordinance. The Companies Registry refers to such an entity as a registered non-Hong Kong company. The application is made on Form NN1, accompanied by Form IRBR2 for the Inland Revenue Department. The registered non-Hong Kong company must appoint at least one authorised representative who is ordinarily resident in Hong Kong and who accepts service of process and notices on the company’s behalf.
A branch is not a separate legal entity. It is the same legal entity as its foreign parent, and the parent remains liable for all obligations incurred by the branch. Creditors can pursue the parent’s worldwide assets. The branch files an annual return on Form NN3. Any change of director or company secretary is reported on Form NN6. A change of registered address is reported on Form NN9.
For a full breakdown of the registration steps, forms and ongoing compliance, see the dedicated page on Part 16 registration.
Subsidiary
A subsidiary is a separate Hong Kong company incorporated under the Companies Ordinance. It is a distinct legal entity with its own assets, liabilities and tax obligations. Liability is contained within the subsidiary; the foreign parent is not liable for the subsidiary’s debts unless it has given a personal guarantee. Incorporation is applied for on Form NNC1. The subsidiary files an annual return on Form NAR1.
The subsidiary is subject to Hong Kong profits tax on its own assessable profits. It can hold assets, enter contracts and employ staff in its own name. Many foreign groups use a subsidiary for substantive trading or manufacturing operations because the liability shield and separate tax identity are clearer than those of a branch.
For the tax comparison between branch and subsidiary, see the page on branch versus subsidiary tax differences.
Representative Office
A representative office is not a registered company and does not file with the Companies Registry. It registers only with the Inland Revenue Department. Its activities are strictly limited: it cannot trade, enter contracts or generate income. It may conduct market research, promote the parent company’s products, and liaise with customers. Every cost must be borne by the parent. Because it cannot derive revenue, a representative office is not chargeable to profits tax, but it must still file a nil return if required.
A representative office is suitable for a foreign company that wants to test the Hong Kong market before committing to a full branch or subsidiary. The legal restrictions on its activities are enforced by the Inland Revenue Department. Exceeding them can result in back-tax assessments and penalties.
For the permitted and prohibited activities, see the page on representative offices.
Re-domiciliation
Hong Kong’s inward company re-domiciliation regime took effect on 23 May 2025 under the Companies (Amendment) (No. 2) Ordinance 2025. Re-domiciliation allows a company incorporated outside Hong Kong to transfer its place of incorporation to Hong Kong without winding up or forming a new entity. The company’s legal identity is preserved as a continuation of legal identity. There is no court process and no winding up.
Four types of company are eligible: private companies limited by shares, public companies limited by shares, private unlimited companies with a share capital, and public unlimited companies with a share capital. The company type under the law of the original domicile must be the same or substantially the same as the Hong Kong type applied for. The law of the original domicile must permit outward re-domiciliation. The members must consent. The application must be made in good faith and not to defraud existing creditors. The company must deregister in its original domicile within 120 days of re-domiciliation.
A re-domiciled company’s annual return runs from the anniversary of re-domiciliation rather than of incorporation. This is a key compliance point for advisers managing the transition.
For the full eligibility criteria and application process, see the page on re-domiciliation. For the tax implications, including profits tax, stamp duty and treaty access, see the page on re-domiciliation tax.
Cross-Border Company Structures Hong Kong
The choice between branch, subsidiary, representative office and re-domiciliation depends on the foreign company’s commercial objectives, risk appetite and tax planning. Cross-border company structures Hong Kong involve a parent company in one jurisdiction and an operating entity or holding entity in Hong Kong. The structures are governed by the Companies Ordinance, the Inland Revenue Ordinance and, where applicable, the Companies (Amendment) (No. 2) Ordinance 2025.
A mainland China company setting up in Hong Kong faces additional considerations under Chinese outbound investment rules, including the requirement for overseas direct investment (ODI) approval from the National Development and Reform Commission and the Ministry of Commerce. For a detailed guide, see the page on mainland companies.
A Hong Kong company operating in mainland China uses a wholly foreign-owned enterprise (WFOE) as its operating vehicle. The WFOE is registered with the State Administration for Market Regulation and is subject to Chinese corporate income tax. The Hong Kong parent must also complete ODI filings with the relevant Chinese authorities if the investment originates from mainland China. For the registration and compliance steps, see the page on WFOE and ODI.
Hong Kong Foreign Company Registration
Hong Kong foreign company registration under Part 16 is a straightforward process for a company that already exists under the laws of another jurisdiction. The company must deliver to the Companies Registry a certified copy of its certificate of incorporation, its constitutional documents, a list of directors and secretary, and the particulars of its authorised representative. The registration fee is payable at the time of filing Form NN1.
The registered non-Hong Kong company must maintain a registered office address in Hong Kong and must display its name and place of incorporation at every place of business. It must file an annual return on Form NN3 within 42 days of the anniversary of registration. Late filing attracts a higher fee.
For the full list of documents and fees, see the page on Part 16 registration.
Hong Kong Branch Subsidiary Re-Domiciliation
A foreign company establishing a legal presence in Hong Kong has three main routes: branch registration, subsidiary incorporation and re-domiciliation. Each produces a different effect on liability, taxation and ongoing compliance.
A branch is the simplest route for a company that wants to test the market without incorporating a new entity. The parent bears full liability. A subsidiary provides a liability shield and is the preferred structure for substantive operations. Re-domiciliation preserves the company’s legal identity and avoids the administrative burden of maintaining two separate entities.
The table below summarises the key differences.
| Feature | Branch (Part 16) | Subsidiary | Re-domiciliation |
|---|---|---|---|
| Legal entity | Same as parent | Separate Hong Kong company | Same as original, continued |
| Parent liability | Unlimited | Limited to investment | Unlimited (same entity) |
| Registration form | Form NN1 + IRBR2 | Form NNC1 | Application under 2025 Ordinance |
| Annual return | Form NN3 | Form NAR1 | From re-domiciliation anniversary |
| Tax treatment | Assessed on branch profits | Assessed on subsidiary profits | Assessed as Hong Kong company |
| Deregistration in original domicile | Not required | Not required | Required within 120 days |
For the tax differences between branch and subsidiary, see the page on branch versus subsidiary tax. For the re-domiciliation process, see the page on re-domiciliation.
Mainland China Company
A mainland China company establishing a Hong Kong presence must comply with both Hong Kong registration requirements and Chinese outbound investment rules. The Hong Kong structure can be a branch, subsidiary or re-domiciled entity. The Chinese parent must obtain ODI approval from the National Development and Reform Commission and the Ministry of Commerce before remitting funds or establishing the Hong Kong entity. The Hong Kong entity must then register with the Companies Registry and the Inland Revenue Department as applicable.
For the full compliance steps, see the page on mainland companies.
Hong Kong Company Operating in Mainland China
A Hong Kong company that wishes to operate directly in mainland China establishes a WFOE. The WFOE is a Chinese limited liability company wholly owned by the Hong Kong parent. It is registered with the State Administration for Market Regulation and is subject to Chinese corporate income tax at the standard rate of 25 per cent, though reduced rates may apply under the Closer Economic Partnership Arrangement (CEPA) or in designated zones such as Qianhai, Nansha and Hengqin.
The Hong Kong parent must also complete ODI filings with the Chinese authorities if the investment originates from mainland China. For the registration and compliance steps, see the page on WFOE and ODI. For the special economic zones, see the page on Qianhai, Nansha and Hengqin.
Cross-Border Compliance
A foreign company with a Hong Kong presence must comply with the Companies Ordinance, the Inland Revenue Ordinance and any applicable double taxation agreement. The authorised representative is responsible for ensuring that the company’s statutory records are kept at the registered office and that annual returns are filed on time. The Inland Revenue Department may require the company to file a profits tax return even if it has no assessable profits.
For a Hong Kong company with no Hong Kong operations, the compliance obligations are different. The company must still file annual returns and profits tax returns, but it may claim that its profits are not sourced in Hong Kong and therefore not chargeable to tax. For the filing requirements, see the page on no Hong Kong operations.
For a US parent company setting up a Hong Kong subsidiary, the compliance considerations include US tax reporting under the Controlled Foreign Corporation rules and the Foreign Account Tax Compliance Act. For a UK or EU parent, the considerations include the UK’s controlled foreign company rules and the EU’s Anti-Tax Avoidance Directive. See the pages on US parent and UK-EU parent respectively.
Economic Substance Requirements
A Hong Kong holding company that claims tax benefits such as the foreign source income exemption (FSIE) or reduced treaty withholding rates must demonstrate economic substance in Hong Kong. The Inland Revenue Department requires the company to have a sufficient number of qualified employees, adequate physical office space, and the ability to make and implement strategic decisions in Hong Kong. The substance requirements apply to both branches and subsidiaries.
For the full substance criteria, see the page on substance requirements.