How to Register a UK Subsidiary of an Overseas Company

An overseas company can establish a UK subsidiary by incorporating a new company with Companies House and becoming its shareholder. This allows an international business to operate in the United Kingdom through a separate UK legal entity while retaining ownership and control from abroad. For example, a company incorporated in Nigeria, the United States, India or the UAE could form a UK private limited company to sell to British customers, hire employees, enter commercial contracts or manage its European operations.

The process is generally straightforward: choose the company structure, prepare the ownership and director details, provide a suitable UK registered office, complete the incorporation application and arrange the subsidiary's tax and accounting obligations. The main additional consideration for overseas parents is making sure the corporate ownership chain and the people who ultimately control the company are reported correctly.

This guide explains how to register a UK subsidiary of a foreign company, what documents to prepare, how much incorporation costs, and what to do after Companies House approves the application.

What Is a UK Subsidiary of an Overseas Company?

A UK subsidiary is a company incorporated under UK law that is owned or controlled by another company, known as its parent. The parent company can own all the subsidiary's shares or share ownership with other investors. When it owns 100% of the shares, the UK company is a wholly owned subsidiary.

For example, imagine a technology business incorporated in Lagos wants to expand into the British market. It forms a UK limited company and owns all its shares. The UK subsidiary can then enter contracts with UK customers, employ staff and manage local operations in its own name. The two companies remain legally distinct:

• The overseas parent owns the shares and exercises its shareholder rights.
• The UK subsidiary conducts its business as a separate legal entity.
• The subsidiary's directors are responsible for managing the UK company and meeting their legal duties.
• The parent company may need to consider how the investment and subsidiary are treated under the laws and tax rules of its home country.

A subsidiary is different from a UK branch. A branch is an establishment of the foreign company rather than a separate UK-incorporated company. A subsidiary is often preferable where a business wants a distinct UK legal identity and clearer separation between the UK operation and the overseas parent.

Can a Foreign Company Own 100% of a UK Subsidiary?

Yes. A foreign company can generally be the sole shareholder of a UK private limited company. The parent does not ordinarily need a UK-resident shareholder or an intermediate UK holding company simply to own the subsidiary. However, ownership and control should be documented accurately. Companies House requires information about shareholders and people with significant control (PSCs), including relevant individuals or legal entities that meet the applicable tests.

The overseas parent may therefore be the direct shareholder, while the UK subsidiary may also need to identify individuals who ultimately own or control it. Some regulated industries and specific activities have additional requirements. If the subsidiary will operate in financial services, defence, telecommunications or another regulated sector, check the relevant licensing and ownership rules before incorporating.

Step-by-Step: How to Register a UK Subsidiary

Step 1: Choose the right company structure

Most overseas businesses establishing an ordinary commercial presence in the UK choose a private company limited by shares. This structure allows the foreign parent to hold shares and generally limits shareholder liability to any amount unpaid on those shares, subject to the applicable law and any separate guarantees or obligations.

Before proceeding, decide what the subsidiary will do. Will it sell products, provide services, employ staff, hold intellectual property or act as a distribution company? Its intended activities will influence its registration details, tax obligations and operational arrangements.

Step 2: Choose a suitable company name

The proposed name must comply with Companies House rules and should not be the same as, or too similar to, a name that is already registered where the rules prohibit it.

Check the name's availability before submitting the application. Also consider relevant trademarks, domain names and existing brands, particularly if the subsidiary will trade under the same name as its overseas parent. A company name being available at Companies House does not automatically mean that it is free from trademark or other intellectual property disputes.

Step 3: Arrange a UK registered office address

Every UK company needs an appropriate registered office address in the UK jurisdiction where it is registered. The address is used for official correspondence and appears on the public register. It must meet the statutory requirements for a registered office; a mailbox or overseas address alone will not necessarily be sufficient.

An overseas parent does not have to rent a full UK office solely to incorporate a subsidiary. Depending on its needs, it may use a suitable registered office service or a physical business address that meets the rules. Consider the privacy implications before using a director's home address, because certain company information is publicly available.

Step 4: Appoint the directors

A UK private limited company must have at least one director who is a natural person. There is generally no UK residence or nationality requirement for an ordinary company director. The foreign parent may appoint an appropriate person to the board, but the director's legal duties are owed to the UK subsidiary itself. A director cannot disregard those duties simply because the overseas parent owns all the shares.

Before filing, confirm the directors' full legal names, dates of birth, service addresses and other information required for the application. Companies House identity verification is now a legal requirement for relevant directors and people with significant control. Directors registering a new company may need to provide their Companies House personal codes as part of the incorporation process.

Step 5: Decide the share structure and identify the parent company

The overseas company will usually subscribe for shares when the subsidiary is formed. For example, the UK company might issue 100 ordinary shares to its foreign parent, giving the parent 100% ownership. This is only an illustration: the number and class of shares should reflect the intended ownership and governance arrangements. Prepare the following information about the parent company:

• Its full registered legal name.
• Its country or jurisdiction of incorporation.
• Its company registration number, where applicable.
• Its registered office address.
• The number and class of shares it will hold in the UK subsidiary.
• The identity of any people who ultimately meet the relevant significant-control tests.

If there are multiple layers of ownership, map the structure before submitting the application. This helps establish which corporate entities and individuals need to be disclosed.

Step 6: Prepare the incorporation information and documents

A standard UK company incorporation involves providing the company's proposed name, registered office, directors, shareholder details, share capital and constitutional information. The application normally includes or deals with the following:

• Memorandum of association: confirms the subscribers' intention to form the company.
• Articles of association: set out the company's internal rules.
• Statement of capital: records the share structure for a company limited by shares.
• Director information: identifies the people appointed to manage the company.
• PSC information: identifies registrable people or relevant legal entities with significant control.
• Registered office and email details: provides the required contact information.

The standard online incorporation service is designed for straightforward cases. If the ownership arrangement is unusual, the company has bespoke articles, or supporting documents are needed, check whether the chosen filing route can accommodate them.

An overseas corporate shareholder does not automatically mean that every incorporation must include a certified copy of the parent's full constitutional documents. However, additional evidence may be needed depending on the filing route, the structure and any verification or compliance checks.

Step 7: Submit the application to Companies House

Once the details are ready, submit the incorporation application through the official GOV.UK service or use an appropriate company formation agent or software provider.

The standard online incorporation fee is £100 as at October 2026. Companies House says straightforward online applications are usually processed within 24 hours, although complex applications can take longer. Paper incorporation costs £124 and generally takes longer. Always confirm the current fee before applying.

If the application is accepted, Companies House issues a certificate of incorporation. This confirms that the UK subsidiary legally exists and provides its company number and incorporation date.

Step 8: Complete the tax and banking arrangements

After incorporation, arrange the practical systems needed to operate the subsidiary. These commonly include:

• Opening a business bank account.
• Setting up accounting records and bookkeeping.
• Confirming the company's Corporation Tax position.
• Registering for VAT if required.
• Registering for PAYE if the company will employ staff and needs to operate payroll.
• Arranging appropriate insurance and any sector-specific licences.

Banks may ask for evidence of the overseas parent's existence, the subsidiary's ownership structure, the identity of beneficial owners and information about the source of funds. Approval is subject to the bank's own onboarding requirements, so incorporation does not guarantee that a particular bank will open an account.

How Much Does It Cost to Register a UK Subsidiary?

The basic Companies House incorporation fee is only one part of the total setup cost.

A straightforward subsidiary may be incorporated for little more than the statutory fee if the parent handles the process itself and already has the required arrangements in place. A complex international structure may require additional professional support. Do not budget on incorporation alone. The company will have ongoing reporting and administration costs after registration.

What Happens After the UK Subsidiary Is Incorporated?

Incorporation creates the legal entity, but it does not complete every compliance task.

Register for Corporation Tax when the company becomes active

A newly incorporated company will usually be set up for Corporation Tax through the online registration process, unless it is dormant. However, the company must ensure that HMRC has the correct information and complete any further steps required.

A company generally needs to tell HMRC within three months of starting business activity if it has not already been registered appropriately. The deadline relates to the start of business activity, not simply to the date the company was incorporated.

Understand the subsidiary's reporting obligations

A UK subsidiary must keep appropriate accounting records, prepare and file annual accounts, and submit confirmation statements as required. It must also notify Companies House of relevant changes, such as changes to directors or the registered office. The directors are responsible for ensuring the company meets its statutory obligations, even when the overseas parent handles administration from abroad.

Check cross-border tax arrangements

If the UK subsidiary trades with its overseas parent, consider the tax treatment of management fees, royalties, loans, goods and services supplied between the companies.

Depending on the circumstances, transfer pricing rules may apply. Transactions should be properly documented and priced in accordance with the relevant requirements. The parent company should also check how its home jurisdiction treats the UK subsidiary, including the treatment of dividends and the subsidiary's profits.

Keep the ownership information accurate

Changes in the ownership chain, voting rights or control may affect the subsidiary's PSC information and other Companies House filings. The company should keep records of share issues and transfers and update its statutory information when required. It should also ensure that relevant directors and PSCs meet applicable identity verification requirements.

Common Mistakes to Avoid

Assuming the parent company's overseas registration is enough. The UK subsidiary must be separately incorporated if the chosen structure is a UK company.

Using an unsuitable registered office. The address must meet UK legal requirements and should be monitored for official correspondence.

Failing to identify the ultimate controllers. A corporate shareholder does not remove the need to consider PSC reporting.

Confusing incorporation with permission to trade. Regulated activities may require additional licences or approvals.

Ignoring ongoing filing obligations. The company must maintain accounts and submit required filings after incorporation.

Assuming a bank account is guaranteed. Banks carry out their own due diligence and may request additional evidence about overseas ownership and source of funds.

For international founders, a UK company formation and management platform such as IncorpUK may help with the incorporation and ongoing administration side. Complex cross-border tax, legal and ownership questions should be reviewed with advisers who understand the relevant jurisdictions.

Frequently Asked Questions

1. Can a foreign company own 100% of a UK subsidiary?

Yes. A foreign company can generally own all the shares in a UK private limited company, subject to any applicable sector-specific restrictions and other legal requirements.

2. Does the foreign parent need a UK address?

The UK subsidiary needs an appropriate UK registered office address. The foreign parent does not ordinarily need its own separate UK office solely to hold the subsidiary's shares.

3. Does the overseas parent need to visit the UK to incorporate a subsidiary?

Not usually. Incorporation can generally be completed remotely through the appropriate filing route or a formation agent, although identity verification and supporting-document requirements still need to be met.

4. How long does it take to register a UK subsidiary?

Straightforward online incorporations are usually processed within 24 hours, according to Companies House. More complex applications may take longer, and banking or tax onboarding can extend the time before the company is fully operational.

5. Does a UK subsidiary need a UK-resident director?

Generally, no. An ordinary UK private limited company does not have a general requirement for a UK-resident director, but it must have at least one natural-person director and meet the applicable identity verification rules.

6. Does a foreign-owned UK subsidiary pay UK Corporation Tax?

Generally, yes. The subsidiary must consider UK Corporation Tax on its taxable profits and comply with the applicable filing and payment requirements.

7. Can a UK subsidiary employ staff and open a UK bank account?

Yes, subject to the relevant requirements. It may need PAYE registration, employment compliance arrangements and any applicable licences. A bank will carry out its own onboarding checks and may request details about the foreign parent and ultimate beneficial owners.

8. Is a UK subsidiary the same as a UK branch?

No. A subsidiary is a separate company incorporated in the UK. A branch is an establishment of the overseas company and is not a separate legal entity.

Conclusion

Registering a UK subsidiary of an overseas company is a practical way to establish a separate legal presence in the British market. A foreign parent can generally own 100% of the shares, appoint the subsidiary's directors and retain control while the UK company operates as its own legal entity.

The essential steps are to choose the right structure, prepare accurate parent and ownership information, appoint directors, arrange a suitable registered office, complete the Companies House application and establish the subsidiary's tax and accounting systems.

Successful incorporation is only the beginning. Plan for ongoing accounts, confirmation statements, tax registrations, identity verification and any cross-border reporting that applies to the group. With these matters addressed from the outset, an overseas business can build a UK operation on a clear and compliant foundation.