Few areas of UK company compliance have changed as quietly — or as consequentially — as the rules around registered office and director service addresses. Under the Economic Crime and Corporate Transparency Act, what used to be a near-formality is now an enforceable Registrar concern. Companies that have not updated their address arrangements since incorporation should treat this as a near-term housekeeping job.
What the rules now require
The registered office must be an "appropriate address", meaning one where:
- A document delivered there would be expected to come to the attention of a person acting on behalf of the company.
- The delivery of a document there can be acknowledged.
That sounds bland. Its practical effect is sharp: a PO Box on its own no longer qualifies. A residential address used while the director has moved away does not qualify. An address shared by hundreds of unrelated companies, with no real presence, is increasingly challenged.
The PO Box question
You can still receive mail at a PO Box, but the underlying physical address that the PO Box resolves to must be one where a real person acknowledges delivery. In practice this means: a serviced office where staff sign for post, an accountant's address with a registered-office service, or a genuine commercial premises. A bare Royal Mail PO Box is not enough on its own.
What happens if the Registrar disagrees
If the Registrar concludes a registered office is not appropriate, they can:
- Change the registered office to a default Companies House address.
- Notify the company in writing.
- Require the company to provide an appropriate address within 28 days, supported by evidence.
- Begin strike-off proceedings if the company fails to comply.
Once a company is at a "default address", banks and lenders will see the change and react. Reputational damage tends to outpace administrative fines.
Director service addresses
A director's service address is the public address used for official correspondence — distinct from the director's residential address, which is recorded but not on the public register. Service addresses must also be appropriate. Common mistakes:
- Using a previous home address after moving without updating the record.
- Using the company's registered office as a service address when there is no presence at the registered office.
- Listing an overseas address that the director cannot meaningfully receive post at.
Residential address protection
Directors do not have to publish their home address. The residential address sits on the protected register, available only to specified public authorities. The trade-off is using a different appropriate address as the service address — for example, an accountant's office.
Why a professional registered office service helps
An ICAEW Chartered Accountancy firm's office is, by definition, an appropriate address. Using PushDigits as registered office and service address gives directors:
- A genuinely manned address where post is received, scanned and forwarded.
- Protection of the director's home address from the public register.
- Compliance with the "appropriate address" rule by design.
- A consistent address even if the directors move or the business changes premises.
Our UK formations service includes registered office and service address support as part of the engagement.
When to act
If any of the following applies, treat the address arrangement as a near-term project:
- The registered office is a PO Box only.
- The registered office is a residential address that has changed since incorporation.
- The registered office sits with a service provider that no longer responds to mail.
- Directors have moved without updating their service addresses.
- You have already received a Section 1097A or similar query letter.
To audit your existing arrangement, contact our compliance team for a fixed-fee Companies House address health check.