Under the Economic Crime and Corporate Transparency Act, there are new rules for registered office addresses.
Companies must now have an ‘appropriate address’ as their registered office at all times. An appropriate address is one where:
any documents sent to the registered office should be expected to come to the attention of a person acting on behalf of the company
any documents sent to that address can be recorded by an acknowledgement of delivery
This means you're not able to use a PO Box as your registered office address. You can still use a third-party agent’s address (such as us - as your accountant) if they meet the conditions for an appropriate address.
Further reading about the changes resulting from the Economic Crime and Corporate Transparency Act can be found here: https://changestoukcompanylaw.campaign.gov.uk/?utm_content=&utm_medium=email&utm_name=&utm_source=govdelivery&utm_term=