Use the form AD01 to update your company registered office address with Companies House whenever you moved office or changed service address providers. The law requires you to inform Companies House within 14 days of the change taking place.
It is important that you must change your registered office address before you submit your confirmation statement. You may file it online or by sending printed A4 size paper form.
Why you must update your registered office address?
You must keep your registered office address updated because important mails and letters are sent there for your company.
Letters from Companies House
If you request your company authentication code, Companies House would only send the code to your registered office address.
Letters from HM Revenue and Customs (HMRC)
HMRC send reminders to your company registered office when your company corporation tax return (the CT600) is due.
HMRC also send your unique tax reference number to your registered office.
Court papers for your company
Another reason to update your company registered office address as soon as possible is that all legal notices served to your company registered office address is considered served to the company.
This would not be good if you did not receive those legal notices especially court papers because you forgot to change it with Companies House.