Planning to establish a UK subsidiary? Our practical guide covers company formation, governance, employment, immigration, contracts, compliance and other key legal considerations.

For an overseas business looking to establish a presence in the United Kingdom, setting up a UK subsidiary can provide a relatively straightforward route into the British market.

Incorporating the company itself is usually only the first step. Before trading begins, the overseas parent will need to consider how the UK company will be owned and governed, how it will be funded, who will manage it, whether employees will be recruited or transferred to the UK, what contracts and regulatory arrangements are required, and how the new business will comply with its ongoing corporate obligations.

These issues are particularly important for European businesses entering the UK market for the first time, where familiar concepts may operate differently under English law.

This guide provides an overview of the principal legal issues an overseas business should consider when establishing a UK subsidiary.

Planning your UK expansion?

Setting up a UK company is only the first step.

B&M Law can help you coordinate the key legal workstreams involved in establishing and operating your UK business:

Company Formation → Governance → Employment → Immigration → Commercial Contracts → Regulatory Compliance

Speak to our cross-border business team about your UK expansion.

1. Subsidiary or UK branch?

One of the first decisions is whether to establish a separate UK company or operate in the UK through a branch of the existing overseas company.

A UK subsidiary will commonly be incorporated as a private company limited by shares. It is a separate legal entity from its overseas parent. As a general principle, the parent company's liability for the subsidiary's debts will therefore be limited to its investment in the subsidiary, subject to matters such as guarantees or other contractual arrangements entered into by the parent.

A branch, by contrast, is not a separate legal entity: it is part of the overseas company itself. An overseas company establishing a physical place of business or branch in the UK will generally need to register that UK establishment with Companies House.

The appropriate structure will depend on a number of considerations, including:

• the proposed nature and scale of the UK operations;
• commercial and regulatory requirements;
• the desired degree of separation between the parent and UK activities;
• financing and group structure;
• accounting and reporting implications;
• tax considerations; and
• the business's longer-term plans for the UK.

Tax considerations can be significant when choosing between a branch and subsidiary and appropriate UK and home-jurisdiction tax advice should normally be obtained before the structure is finalised.

For many overseas businesses planning a substantial or permanent UK operation, however, a wholly owned UK private limited company provides a familiar and commercially practical structure.

2. Decide the ownership and governance structure before incorporation

It is worth considering the governance arrangements before simply incorporating a standard company.

A UK private company limited by shares must have at least one shareholder and at least one director. At least one director must be an individual. Directors do not need to be resident in the UK, although the company itself must have a UK registered office. A private company is not generally required to appoint a company secretary.

For a wholly owned subsidiary, the overseas parent will normally subscribe for the shares in the UK company.

Before incorporation, the group should consider matters such as:

• who will be the shareholder or shareholders;
• the amount and structure of the initial share capital;
• whether more than one class of shares is required;
• who should sit on the UK board;
• the extent of authority delegated to UK management;
• which decisions should require parent company approval;
• how the subsidiary will be funded; and
• whether bespoke articles of association are appropriate.

Companies can use the standard model articles of association, but they are not necessarily appropriate for every corporate structure. Companies House allows a company either to adopt the model articles or to incorporate using bespoke articles.

If the UK business is a joint venture rather than a wholly owned subsidiary, a shareholders' agreement should normally also be considered to regulate matters such as management, reserved decisions, funding, share transfers, deadlock and exit.

Even in a wholly owned group structure, documenting the relationship between parent and subsidiary can be important. Intercompany services, funding, intellectual property licensing, distribution and other group arrangements may need separate agreements.

3. Incorporating the subsidiary at Companies House

The subsidiary must be registered at Companies House.

The incorporation process will normally involve determining:

• the company name;
• its registered office;
• its registered email address;
• its directors;
• its shareholder or shareholders;
• its share capital;
• its articles of association;
• its business activities and appropriate SIC codes; and
• its persons with significant control.

The registered office must be an appropriate physical address in the part of the UK in which the company is registered. A professional service provider's address can potentially be used with that provider's permission, provided it meets the statutory requirements. The registered email address is supplied to Companies House but is not displayed publicly.

Once the application has been accepted, Companies House issues a certificate of incorporation, confirming the company's legal existence, incorporation date and registered company number.

Identity verification

Companies House identity verification has become an important part of the incorporation and company compliance process.

Identity verification became a legal requirement from 18 November 2025, with directors and persons with significant control being brought within the new regime. New company registrations may require the Companies House personal code of each director, and PSCs must also comply with the applicable identity verification requirements.

Verification can, depending on the circumstances, be carried out directly through the Companies House process or through an Authorised Corporate Service Provider (ACSP). ACSPs are AML-supervised professionals, such as qualifying accountants and solicitors, that have registered with Companies House for the relevant functions.

Overseas businesses should therefore identify the proposed directors and ownership structure early rather than leaving identity verification until the proposed launch date.

4. Identify the People with Significant Control

A UK company must identify and report its People with Significant Control (PSCs).

In a straightforward company structure, this may include an individual who directly or indirectly:

• holds more than 25% of the shares;
• holds more than 25% of the voting rights;
• has the right to appoint or remove a majority of the board; or
• otherwise has the right to exercise, or actually exercises, significant influence or control.

The analysis can become more complicated where the UK subsidiary is held by an overseas corporate parent, particularly where the wider group contains several intermediate entities, trusts or other ownership arrangements.

The corporate structure should therefore be reviewed before incorporation so that the correct beneficial ownership information is provided to Companies House.

5. UK directors have their own legal duties

Overseas parent companies sometimes assume that the directors of a wholly owned UK subsidiary simply implement the instructions of the parent company's management.

English company law requires a more careful approach.

Directors of the UK subsidiary owe statutory duties in relation to the UK company. These include duties to act within their powers, promote the success of the company, exercise independent judgment, exercise reasonable care, skill and diligence, avoid conflicts of interest and declare relevant interests.

This distinction can be particularly important where the same individuals sit on the boards of both the parent and subsidiary or where group interests may not perfectly coincide with those of the UK entity.

The governance structure should therefore allow the subsidiary's board to make and document decisions appropriately, even where strategic direction ultimately comes from the parent group.

6. Put in place ongoing company secretarial compliance

Incorporation is the beginning rather than the end of the Companies House compliance process.

Every company must file a confirmation statement at least once every 12 months, including where no relevant information has changed. Companies must also ensure that changes to directors, registered office details, ownership and other reportable information are notified when required.

Annual accounts will also need to be prepared and filed. For a private limited company, the first accounts will normally be due to Companies House within 21 months of incorporation, with subsequent annual accounts generally due within nine months of the financial year end. Separate Corporation Tax filing and payment deadlines apply.

It is therefore advisable to establish responsibility from the outset for:

• Companies House filings;
• corporate records;
• board and shareholder resolutions;
• changes in directors and PSC information;
• share issues and transfers;
• annual accounts;
• confirmation statements; and
• HMRC filings.

Professional advisers can undertake many of these administrative functions, but directors retain legal responsibility for ensuring that the company's obligations are met.

7. Engage UK accountants and tax advisers early

Legal incorporation and tax structuring should be coordinated, but they are different workstreams.

A new UK subsidiary will normally need appropriate arrangements for Corporation Tax, accounting, VAT where applicable and, once it employs staff, payroll and PAYE.

When a company is incorporated online, it will usually be set up for Corporation Tax as part of the registration process, although further steps may be required once it begins trading.

VAT should also be considered at an early stage. As at September 2026, the general compulsory VAT registration threshold is £90,000 of taxable turnover, although different rules can apply in particular circumstances and voluntary registration may be possible.

For an international group, additional issues may include:

• intercompany charges;
• transfer pricing;
• financing;
• withholding taxes;
• customs and import VAT;
• movement of goods between the UK and EU;
• profit repatriation and dividends; and
• the interaction between the UK and the tax regime of the parent company's jurisdiction.

These are areas in which coordinated advice from appropriately qualified accountants or tax advisers is important.

8. Decide how the subsidiary will be funded

The initial funding arrangements should also be considered before trading begins.

Funding may take the form of share capital, intercompany loans or a combination of different arrangements. Depending on the structure, appropriate corporate approvals and intercompany documentation may be needed.

Where the parent provides services, licences intellectual property, supplies goods or provides financing to its subsidiary, the commercial relationship should not be left undocumented simply because both companies form part of the same group.

Tax and transfer-pricing implications should also be considered with the group's tax advisers.

The company will usually also need banking and payment arrangements. Banks and other financial institutions will conduct their own KYC and beneficial ownership checks, so having a clear corporate ownership structure and the relevant parent-company documentation readily available can help avoid unnecessary delays.

9. Review your commercial contracts for the UK market

A contract used by the parent company in another jurisdiction should not automatically be assumed to be suitable for the UK subsidiary.

Depending on the business model, the company may require:

• terms and conditions of business;
• supply or distribution agreements;
• agency agreements;
• consultancy agreements;
• service agreements;
• e-commerce terms;
• confidentiality agreements;
• licence agreements;
• intercompany agreements; and
• appropriate limitation of liability and dispute resolution provisions.

Particular attention should be paid to governing law and jurisdiction clauses, payment terms, termination provisions and the allocation of commercial risk.

For companies entering the UK through distributors or commercial agents, the legal nature of the relationship should also be considered carefully before arrangements are finalised.

It is normally much easier to establish the correct contractual framework before the UK operation begins trading than to address weaknesses once a customer, distributor or supplier relationship has already broken down.

10. Employing staff in the UK

Hiring the first UK employee creates a separate set of obligations.

An employer will normally need to register with HMRC for PAYE before the first payday.

UK employment documentation should also be prepared. Employees and workers are entitled to prescribed written information about their employment, much of which must be provided on or before their first working day.

Depending on the company's circumstances, documentation may include:

• employment contracts;
• staff handbooks and workplace policies;
• confidentiality provisions;
• intellectual property clauses;
• restrictive covenants;
• disciplinary and grievance procedures;
• family leave policies;
• data protection documentation; and
• bonus or commission arrangements.

An overseas parent should not simply translate its domestic employment contract into English. UK statutory employment rights apply irrespective of the wording of the parent company's standard documentation.

Workplace pensions

Automatic enrolment obligations can arise as soon as the company employs its first member of staff. Eligible workers must generally be enrolled in a qualifying workplace pension scheme and the employer must make the required contributions.

A payroll provider or accountant can assist with the operational side, but the company should ensure that the legal and payroll arrangements are coordinated from the outset.

11. Immigration and moving existing staff to the UK

Incorporating a UK company does not in itself give directors or employees of the overseas parent the right to live or work in the UK.

The immigration position should therefore be considered early if the business plans to relocate existing personnel or recruit individuals who do not already have an unrestricted right to work in the UK.

Employers are required to carry out appropriate right-to-work checks before employment.

Where sponsorship is required, the UK entity may need to obtain a Sponsor Licence and comply with the Home Office's sponsorship requirements. Sponsor licence holders have continuing duties relating to record keeping, reporting and compliance, rather than simply obtaining the licence at the recruitment stage. Current Home Office sponsor guidance was updated again in August/September 2026.

For a business intending to transfer key personnel to Britain, immigration planning should therefore run alongside — rather than follow — the corporate establishment process.

12. Protect the company's intellectual property

Entering a new market is also a useful point at which to review the group's intellectual property.

This may include:

• trade marks and brand names;
• domain names;
• copyright;
• software;
• designs;
• patents;
• trade secrets; and
• proprietary know-how.

A brand protected elsewhere does not necessarily have the required protection in the UK.

A UK trade mark registration can provide protection for a brand in the UK and can be sold or licensed. UK registrations are administered by the Intellectual Property Office.

The group should also consider which entity actually owns the relevant intellectual property. If IP remains with the overseas parent but is used by the UK subsidiary, an appropriate licence or other intercompany arrangement may be advisable.

Employment and consultancy contracts should also address ownership of intellectual property created by staff and contractors.

13. Data protection and customer information

A UK subsidiary handling personal information will need to consider the UK's data protection regime.

This may involve:

• privacy notices;
• employee privacy information;
• cookie and website compliance;
• lawful bases for processing;
• direct marketing;
• processor agreements;
• data retention;
• security arrangements;
• data subject requests;
• data protection complaints procedures; and
• international transfers of personal information.

The Data (Use and Access) Act 2025 made a number of changes to the UK's data protection framework, with all of its data-protection provisions in force by June 2026.

Depending on the company's activities, it may also need to pay the annual data protection fee to the Information Commissioner's Office.

For European groups, particular attention should be given to data moving between the UK subsidiary and the parent or other EU group companies. The group's existing EU GDPR documents should therefore be reviewed rather than automatically reused in the UK.

14. Premises and commercial property

If the subsidiary requires offices, retail premises, a warehouse or another physical location, the commercial property arrangements should be reviewed before commitments are made.

A commercial lease can represent a significant long-term liability. Important issues may include:

• rent;
• service charge;
• rent review;
• repairing obligations;
• insurance;
• alterations;
• permitted use;
• assignment and subletting;
• break clauses;
• security of tenure; and
• guarantees or rent deposits.

Landlords may request a guarantee from the overseas parent where the UK company is newly incorporated and has little trading history.

The terms of any guarantee should be reviewed carefully because it can undermine some of the practical separation between the parent company's liabilities and those of its subsidiary.

15. Check whether the business requires regulatory approval

Incorporation does not necessarily mean that the company is legally ready to trade.

Many industries are subject to additional UK regulatory requirements. Depending on the sector, these can involve product compliance, licensing, registrations, consumer protection, professional regulation or sector-specific regulators.

Businesses operating in areas such as financial services, healthcare, food and beverages, cosmetics, transport and other regulated sectors should therefore conduct a regulatory review before launching UK operations.

For businesses selling physical products, the allocation of responsibility between manufacturer, importer, distributor and the UK entity should also be considered as part of the market-entry exercise.

16. Build the right UK professional team

For an overseas company entering the UK, good coordination between advisers can be just as important as the individual workstreams.

A typical market-entry team may include:

• UK corporate lawyers;
• employment lawyers;
• immigration lawyers;
• regulatory advisers;
• commercial property lawyers;
• accountants and tax advisers;
• payroll providers;
• insurance brokers;
• banking providers; and
• sector-specific consultants.

Where the parent company is based overseas, advisers in the home jurisdiction may also need to be involved, particularly in relation to tax, corporate approvals and cross-border arrangements.

Using a coordinated team from the outset can reduce duplication and help identify issues before they delay the proposed UK launch.

A practical UK subsidiary checklist

Before incorporating:

1. Decide whether a subsidiary or branch is the appropriate structure.
2. Obtain tax and accounting advice on the proposed structure.
3. Decide who will own the subsidiary.
4. Select the directors and management structure.
5. Consider bespoke articles and governance arrangements.
6. Identify the PSC position.
7. Complete the necessary Companies House identity verification.
8. Check company and brand name availability.

At incorporation and before trading:

9. Incorporate the company and establish the registered office.
10. Put company secretarial processes in place.
11. Establish accounting, Corporation Tax and VAT arrangements.
12. Open appropriate banking and payment facilities.
13. Document parent-company funding.
14. Review commercial contracts.
15. Review intellectual property protection.
16. Assess data protection requirements.
17. Check sector-specific regulatory requirements.

Before employing staff:

18. Prepare UK employment documentation.
19. Register for PAYE and establish payroll.
20. Put workplace pension arrangements in place.
21. Carry out right-to-work checks.
22. Assess Sponsor Licence and immigration requirements where necessary.

Before taking premises:

23. Review the lease or licence.
24. Consider guarantees, rent deposits and other security arrangements.

Ongoing:

25. Maintain statutory and accounting records.
26. File annual accounts and confirmation statements.
27. Keep directors and PSC information up to date.
28. Maintain employment, immigration and regulatory compliance.
29. Review contracts and policies as the UK operation grows.

How B&M Law can assist

Establishing a UK company is often straightforward. Establishing a UK operation properly requires considerably more planning.

B&M Law LLP advises overseas businesses, entrepreneurs, shareholders and corporate groups on establishing and developing their activities in the United Kingdom.

Our international and multilingual practice enables us to provide coordinated assistance across the principal legal workstreams involved in a UK market entry, including:

• company formation and corporate governance;
• constitutional documents and shareholders' agreements;
• commercial contracts;
• employment contracts and workplace policies;
• corporate immigration and Sponsor Licence applications;
• intellectual property;
• regulatory and compliance matters;
• data protection;
• commercial property; and
• dispute resolution.

Where accounting, taxation, payroll or other specialist advice is required, we can work alongside the client's existing advisers or coordinate with appropriate UK professionals.

For international groups, this provides a single UK legal point of contact while allowing the different workstreams to be coordinated around the company's commercial objectives and proposed launch timetable.

Planning to establish or expand your business in the United Kingdom?

Speak to B&M Law's cross-border business team about the legal steps required to establish your UK operations.

B&M Law LLP
Temple Chambers
3–7 Temple Avenue
London EC4Y 0HP
United Kingdom

Tel: +44 (0)20 3865 5437
Email: info@bandmlaw.co.uk

This guide provides general information on English law as at September 2026 and is not intended to constitute legal, tax or accounting advice. The requirements applicable to a particular business will depend on its structure, activities and circumstances. Specific professional advice should be obtained before taking or refraining from taking action.