This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Comprehensive guide to registering overseas companies in England and Wales. Explains when foreign companies must register with Companies House, the registration process, ongoing filing and disclosure obligations, company name rules and compliance for UK establishments, plus separate property ownership requirements. Accessible legal overview.
When a company incorporated outside the United Kingdom wishes to establish a presence or carry on business in England and Wales, it may be required to register as an overseas company with Companies House. This process ensures transparency, legal compliance and accountability for foreign companies operating within the UK's legal and economic framework. This guide explains who must register, when registration is required, the process, ongoing obligations and compliance risks in clear legal terms suitable for business owners, directors, advisers and members of the public.
What Is an Overseas Company?
An overseas company is a corporate entity that is legally incorporated outside the United Kingdom but has an establishment or place of business in England and Wales. A place of business or branch could include an office, factory, depot or regular physical base from which business activities are conducted. A foreign company with no physical UK presence does not normally have to register as an overseas company, although it may still have other UK obligations such as tax registration.
Who Must Register as an Overseas Company?
A company incorporated outside the UK must register with Companies House if it sets up a place of business in the UK or usually carries on business from somewhere in the UK. This requirement does not apply to companies that simply make periodic visits, operate through independent agents, deliver occasional services or trade online without a permanent establishment.
Several entities cannot register as overseas companies - for example, unincorporated partnerships and contractual associations that are not corporate bodies under their home law.
When Registration Must Be Submitted
Registration must be completed within one month of opening the UK establishment. This timeframe is strict: failing to file the relevant forms and supporting documents within this window can lead to enforcement issues and difficulties in opening bank accounts, entering contracts or appearing before UK authorities.
The Registration Process
1. Completing Form OS IN01
To register, the overseas company must complete Form OS IN01 and file it with Companies House. The form requires basic information about the foreign company such as:
- The company's name and legal form under the law of its home country.
- Registered office address outside the UK.
- Details of the intended UK establishment including the address and nature of business activities.
- The date the UK establishment commenced business.
- Names and addresses of directors, secretaries and persons authorised to represent the company in the UK.
Form OS IN01 must be accompanied by:
- A certified copy of the constitutional documents (such as memorandum or articles of association), with an English translation if the original is in another language.
- A certified copy of the company's latest accounts if it is required to prepare and publish them under its home law, again with translation where necessary.
- The correct registration fee, currently £124, paid at the time of submission.
A copy of Form OS IN01 and supporting documents, once accepted, are added to the public register maintained by Companies House.
2. Identity Verification
Directors and persons authorised to act for the overseas company may need to verify their identity with Companies House. This step confirms that individuals named in filings are who they claim to be and satisfies anti‑fraud and transparency requirements under the registrar's regime.
Choosing and Using Company Names
An overseas company may register under its existing corporate name or an alternative name for use in the UK. However, certain restrictions apply:
- Names that include offensive language, imply a connection with government bodies, or use protected words without approval (such as “Architect” or “Solicitor”) can be rejected.
- The name used for UK filings must comply with UK naming rules, even if the parent company's legal structure differs at home.
- If a UK alternative name is used, it is treated for UK legal purposes as the company's corporate name and must be used on all official forms, correspondence and public documents.
- Companies House can reject or demand a change if the name is too similar to an existing registered entity or is misleading.
Ongoing Obligations After Registration
Once registered, overseas companies have continuing compliance obligations:
Changes to Company Details
Any changes in company information must be notified to Companies House within 21 days of the change. These include:
- Changes to the company's name, address or business activities.
- Appointments or resignations of directors, secretaries or authorised representatives.
- Alterations to the company's constitutional documents or powers of representatives.
Filing Accounts
Overseas companies that prepare and disclose accounts under the law of their home jurisdiction may also need to file those accounts with Companies House. The accounts must be submitted in English (or with certified English translations) and typically within three months of the date they are required to be disclosed in the parent country.
Disclosure of UK Activities
Registered overseas companies must ensure that their corporate name and country of incorporation appear on:
- Business correspondence, invoices and official publications.
- Websites and emails used for UK business operations.
- Documents used in trading activities such as orders, receipts and contracts.
Closure of UK Establishments
If an overseas company closes its UK establishment, it must notify Companies House by filing Form OS DS01. Once processed, the establishment is removed from the register, and most ongoing obligations cease. Failure to file the closure notice can leave entities exposed to continued compliance responsibilities or penalties.
Register of Overseas Entities for Property
Separately from the overseas company registration described above, the Economic Crime (Transparency and Enforcement) Act 2022 introduced a Register of Overseas Entities specifically for entities that own UK land or property.
Under this regime:
- Overseas entities that own UK land, or intend to acquire it, must register with Companies House and disclose beneficial ownership and managing officers.
- Registration enables proper recording of ownership and is necessary for the Land Registry to record transactions (such as purchases or charges) involving UK property.
- The register aims to enhance transparency and combat illicit financial activity involving real estate.
Non‑compliance can lead to financial penalties for overseas entities and can affect their ability to transact in UK property markets.
Common Questions
Do all non‑UK companies have to register?
No. Only companies with a UK establishment (physical place of business) need to register. Occasional visits or online sales without a fixed base usually do not trigger the obligation.
Is tax registration required too?
Yes. Even if a company is not required to register as an overseas company, it may still need to register for Corporation Tax with HM Revenue & Customs if it generates taxable profits in the UK.
Can an overseas company use a UK service address?
Yes, it can provide a UK service address for filings and correspondence, but the requirement to notify changes and to display the name and incorporation country still applies.
Key Takeaways
Registering an overseas company in England and Wales is a formal legal process that ensures foreign corporate entities conducting business from a UK establishment are recognised in the official register maintained by Companies House. The process involves filing Form OS IN01 with supporting constitutional documents and accounts, paying registration fees, and fulfilling identity verification requirements. After registration, overseas companies must meet ongoing obligations including notifying changes, filing accounts where applicable and complying with name disclosure rules. In addition, separate rules under the Register of Overseas Entities apply for foreign owners of UK property. Awareness of these registration requirements and continued compliance supports legal certainty, protects creditor and public interests, and helps avoid penalties or enforcement action.
