Choosing a registered office address may seem like a minor step when forming a company, but it has legal, practical and privacy consequences. It is the official location Companies House and other public bodies use to contact the company, and it appears on the public register. Since the rules were strengthened in March 2024, founders also need to know that a simple PO box is no longer acceptable. The address must be a real, appropriate place where official documents can reliably reach someone acting for the business.
What is a registered office address?
A registered office is the official legal address of a UK limited company or limited liability partnership. It is where statutory notices and formal correspondence can be delivered. It does not have to be the place where the company trades, meets clients or stores stock.
Every company must provide this address when it is incorporated and keep an appropriate address on the register throughout its existence. Because the details are publicly searchable, the choice should be made before submitting the incorporation application.
The registered office rules you must follow
Your registered office must be a physical UK address and remain within the legal jurisdiction where the company was incorporated. A company registered in Scotland needs a Scottish registered office, while one registered in Northern Ireland needs an address there. A company formed in England and Wales can generally use an address in either country, unless it was specifically registered as a Welsh company.
The address must also be “appropriate”. Documents delivered there should normally come to the attention of someone acting for the company, and the sender must be able to obtain an acknowledgement or record of delivery.
Why a PO box is no longer allowed
A Royal Mail PO Box cannot be used as a registered office address. The restriction also covers similar mailbox-only services offered by other providers. The issue is whether the location satisfies the appropriate-address test, not simply whether the service uses the word “box”.
Be cautious when a low-cost provider advertises a mailing address without explaining how post is received, recorded and passed on. A service that only gives you a box number is not enough. Companies House can act when an address fails to meet the requirements, and continued non-compliance may put the company at risk of being struck off.
Can you use your home address?
Yes. A director or shareholder can use a home address if it meets the rules and is in the correct UK jurisdiction.
The main drawback is privacy. A Companies House address appears on the public register and can be found online. Using a residential address can also blur the boundary between home and business if official letters or creditor correspondence arrive there.
If privacy matters, arrange another compliant address before incorporation. It is usually better to avoid publishing a sensitive home address than to try to remove it from historical filings later.
Using an accountant, solicitor or formation agent
Many companies use the office of an accountant, solicitor, formation agent or professional address provider. This can protect a director’s home address and provide continuity if the business later moves.
You must have permission to use the address, and the service must meet the same legal standards as any other registered office. Ask how quickly official mail will be scanned, forwarded or made available for collection. Check whether the package covers Companies House and HMRC correspondence, and look for renewal or forwarding charges.
When a virtual office address is suitable
A virtual office address can be valid, but “virtual” does not remove the need for a real physical location. The provider should accept documents at the stated address, ensure they reach someone acting for your company and support recorded or acknowledged delivery.
Before buying a virtual office address, confirm that it is specifically approved for registered-office use. A general business address UK service may only cover marketing or customer mail. Ask whether the full address can appear on the Companies House register and whether the provider can show that you are entitled to use it.
Registered office, business address and service address
These terms are often confused. The registered office is the company’s official legal address. A trading or business address is where daily operations happen or customers send routine correspondence. They can be the same, but they do not have to be.
A director’s service address is public and is used for correspondence connected with that person’s role. The director’s usual residential address is supplied separately to Companies House and is generally not displayed publicly.
How to choose the right address
Start with compliance: the address must be physical, appropriate and within the correct jurisdiction. Then consider reliability. Someone should check post regularly and have a clear process for alerting the company to urgent documents.
Next, think about privacy and continuity. A home address may save money, while an agent’s address can prevent repeated public updates when you move. Review the provider’s reputation, forwarding times, cancellation terms and total annual cost. A cheap service is poor value if important mail is delayed.
Make sure the address is ready before registering the company. If you later change it, notify Companies House through the correct filing process. The new address does not become official until the change has been registered.
Common mistakes to avoid
Do not enter a PO box, use an address without permission or assume every virtual-office package is compliant. Avoid choosing a location in the wrong UK jurisdiction, and do not ignore post because the company is dormant or has not started trading. The registered office remains an active legal contact point.
It is also a mistake to choose an address only because it looks prestigious. What matters is whether official documents will reach the company promptly and whether delivery can be acknowledged.
Frequently asked questions
Can I use a PO box as my registered office address in the UK?
No. A Royal Mail PO Box, or a similar mailbox-only service, cannot be used. You need a physical, appropriate address where documents can reliably be received and delivery recorded.
Does my registered office have to be where I work?
No. It can be your home, an adviser’s office or a compliant address service. It does not have to be your trading location.
Can I use a virtual office for Companies House?
Yes, if it provides a genuine physical address, accepts official mail, ensures it reaches the company and allows acknowledgement of delivery. Confirm that the package is intended for registered-office use.
Can I change my registered office later?
Yes. You can file a change with Companies House, but the new address must remain in the company’s existing UK jurisdiction. The change takes effect only after it is registered.
Choose compliance and reliability over convenience
The best registered office address is not simply the cheapest or most impressive one. It is an address that satisfies Companies House, protects your privacy where needed and ensures important documents never go unnoticed. By checking the jurisdiction, physical-location and mail-handling requirements before incorporation, you can avoid one of the most common company formation mistakes.
