Updated for 2026 — reflects current Companies House rules, HMRC expectations, director privacy updates, and UK bank onboarding realities.
Quick Answer (2-min read)
A PO Box cannot be used as your company’s Registered Office Address at Companies House.
You need a real, physical, deliverable street address — not just a mailbox-style address.
This ensures:
- Companies House and HMRC can deliver statutory notices
- Legal documents can be properly served
- The company is tied to a clear UK jurisdiction (E&W / Scotland / NI)
A PO Box may still be used for general correspondence, but not as your official registered office.
Why a PO Box is not acceptable as a Registered Office
Under the Companies Act 2006, the registered office must be:
- A physical address capable of receiving documents
- A location showing a geographical place
- Suitable for the service of legal documents
A PO Box typically fails these criteria.
❌ It does not clearly identify a physical location
❌ It may not satisfy statutory service expectations
❌ It often creates friction during bank verification
Many founders initially try to use a PO Box to protect their home address.
However, this often leads to delays during bank checks or additional verification requests once Companies House records are reviewed.
If privacy is your concern, the compliant route is using a street-address registered office such as a
👉 registered office in London.
When a PO Box can be used
A PO Box is acceptable for:
- Marketing mail
- Customer support mail
- General correspondence
- Non-statutory communication
But your Registered Office must still be a street address.
Many founders combine:
- A compliant registered office
- A separate director service address
- Digital mail handling
For example, here’s how a
👉 cheap virtual office in London
is typically structured to meet compliance requirements while protecting privacy.
The modern solution: compliant street address + digital handling
If you operate remotely or want to avoid publishing your home address, a compliant virtual office setup is usually the cleanest approach.
A standard configuration often includes:
Registered Office Address
A real London street address suitable for Companies House.Director Service Address
Keeps your residential address off the public register where applicable.Mail scanning & organisation
Digital copies, searchable records, and optional reminders.On-demand forwarding
Forward only what matters.
You can see how a compliant London setup works in practice here:
👉 Virtual Office London.
Bank onboarding: why PO Boxes create problems
Most UK banks and fintechs typically require:
✔ A real UK street address
✔ Consistency with Companies House records
✔ Proof that official mail can be reliably received
A PO Box often triggers additional checks, delays, or compliance questions during verification.
Using a compliant street-address registered office usually results in a smoother onboarding process.
Compliance checklist
Your setup is generally compliant if:
- Your registered office is a real street address
- It matches the correct UK jurisdiction
- You use a director service address if privacy matters
- You can reliably access statutory correspondence
- Your website and invoices display consistent details
Mini-FAQ
Can I use a PO Box if I also provide a street address?
Yes — as long as the registered office is the street address. A PO Box may be used for general mail only.
Can non-UK residents register in London?
Yes — provided the company uses a real, deliverable London address that meets Companies House requirements.
Can legal documents be served to a PO Box?
Generally no. Legal service should be possible at the registered office street address.
Is a mailbox address the same as a registered office?
Not necessarily. It must be a real, deliverable location suitable for statutory mail.
Founder takeaway
A PO Box works for general correspondence.
But for Companies House, HMRC, and bank verification workflows, you’ll usually need a real UK street address as your registered office.
If privacy and compliance both matter, reviewing a properly bundled London setup can help you avoid verification delays and hidden structural issues.
