What Is a Registered Office Address and Why It Is Needed for UK Companies?
- Published: 8 November 2026
- 5 min read
- Starting a Company
Melody Huang
Author
Melody Huang is a content specialist at Osome, focused on producing expert content that supports UK entrepreneurs. She breaks down complex business topics into accessible, step-by-step advice — from setting up a limited company to managing accounts and planning for long-term growth. Melody’s work makes the blog a go-to resource for businesses looking to thrive in the UK.
Kate Lokenbaha
Reviewer
Kate Lokenbaha is an Accounting Team Lead and reviewer at Osome, focused on verifying the accuracy and reliability of content related to accounting, bookkeeping, and financial reporting. With accounting expertise, she supports UK readers with clear, practical insights, helping them understand financial requirements and make informed business decisions with confidence.
A registered office address is the official, legally required UK location where a limited company or LLP receives official correspondence. It appears on the public Companies House register, so using a home address can expose privacy and bring unsolicited mail, and the company does not have to trade from it. This guide covers the current rules, how it differs from a service or business address, and how to choose or change one.
Key Takeaways
- Every UK limited company and LLP must maintain a physical registered office address in the same jurisdiction as the company, not a standalone PO Box.
- The company's registered office address is public and is where Companies House, HMRC, and the courts send official notices, which the company is treated as having received.
- A director's service address and a trading business address follow different rules and need not match the registered office address.
What Is a Registered Office Address?
A company's registered office address is the official address in the UK of a limited company or LLP on the Companies House register. Government bodies send official mail there. The company does not have to trade from this business address.
Documents can be served there, and statutory registers are usually kept there. The company is treated as reached even if directors cannot access the post. A registered office address is a legal requirement from company incorporation and for the whole life of the company.
Working from home, or from outside the UK, still needs a UK address that takes official post without listing a home publicly. Osome can form the company and include a London registered office with mail scanning. Start with registering a company when that combination is needed from day one.
What Does the Law Require?
Before filing, the address must pass a short appropriate-address check, not just look like an office. Since 4 March 2024, under the Economic Crime and Corporate Transparency Act 2023, it must be an appropriate physical address in the same country the company is registered in.
To qualify as an appropriate registered office address, check:
- Physical address: A UK street address, not a standalone PO Box.
- Same jurisdiction: England and Wales, Wales, Scotland, or Northern Ireland.
- Can be reached: Documents must be expected to reach someone acting on the company's behalf who has access to the post.
- Can be acknowledged: A signature or a provider log is enough.
- Registered email: Kept, monitored, and off the public record.
If Companies House decides the address is not appropriate, it can move the company to a default Companies House address. The company then has 28 days to file an appropriate business address with evidence. Failure can lead to strike-off, and officers can commit an offence.
What Address Can Be Used as a Registered Office?
A home, an accountant or solicitor, a registered office service, or a genuine virtual office can be used if it passes the appropriate-address tests. A standalone PO Box cannot.
Founders overseas still need a UK address in the same jurisdiction. An accountant or company formation agent may supply it with permission if they can receive and acknowledge post.
Option | Can it be used? | Main consideration |
|---|---|---|
| Home address | Yes. | The residential address becomes public. |
| Accountant or solicitor | Yes. | Must meet the appropriate-address tests, and permission is required. |
| Registered office address service | Yes. | Can enhance privacy and mail handling. |
| Virtual office | Sometimes. | Must be a real street address that can receive and acknowledge post, not a mailbox-only product. |
| PO Box | No. | A standalone PO Box is not accepted. |
Once filed, a home address stays public and cannot be hidden while it remains the registered office. Visitors may arrive, and some landlords treat it as a business use.
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Registered Office, Service Address, and Business Address
A registered office address is the company's official address. A service address is the public correspondence address for each director or other officer. A business address or trading address is where the company actually works, and it is not a legal requirement.
The three different addresses can be the same building, or split to keep an office address or residential address private.
Address type | What it is for | Where it must be | On the public register? |
|---|---|---|---|
| Registered office | Statutory mail and legal service. | Physical address in the same UK jurisdiction as the company. | Yes. |
| Service address | Public correspondence for a director, secretary, or PSC. | Any physical address, including one outside the UK. | Yes. |
| Business (trading) address | Business (trading) address | No Companies House location rule. | Only if the company chooses to publish it. |
How to Change a Registered Office Address?
Companies House must be told within 14 days of a change to the company's registered office. The new business address does not take effect until the registrar records it, and documents can still be validly served at the old business address for 14 days from the date the office change is registered.
The change is usually filed online with the company authentication code. Paper AD01, or LL AD01 for an LLP, is only for a default Companies House address, liquidation, or restoration.
The usual sequence is as follows.
- Confirm the new business address is suitable and in the same jurisdiction.
- File the change through Companies House WebFiling and wait until it is registered.
- Update business letters, invoices, emails, marketing materials, banks, and stationery the day the new business address goes live. Companies House updates HMRC's Corporation Tax record; VAT or PAYE details still need a separate HMRC update.
Use the paper forms below only if the online service is not available.
How Osome Can Help
Osome handles UK company registration and can include a London registered office address with mail scanning, so formation, the address, and later confirmation statements sit with one team. Missing a confirmation statement reminder or a tax letter can trigger late-filing penalties even when the company is otherwise in good order. Scans of Companies House and HMRC post go to the company without a residential listing. Start with Osome if a UK company and a compliant registered office address need to be arranged together.
Summary
The useful test is whether official post will be opened and acknowledged, and whether the listing should be public. An unused letterbox can still be treated as a valid place to serve the company. Choose the right address for delivery and privacy first. A prestigious postcode can support a professional image and business image, but it is no substitute for someone who will actually handle the mail.
Melody Huang is a content specialist at Osome, focused on producing expert content that supports UK entrepreneurs. She breaks down complex business topics into accessible, step-by-step advice — from setting up a limited company to managing accounts and planning for long-term growth. Melody’s work makes the blog a go-to resource for businesses looking to thrive in the UK.
