Regulation 24

Every self‑employed person liable to pay contributions under these Regulations must immediately inform the Board in writing of any change of his or her address, except that a self‑employed person who changes his or her residential address is deemed to have informed the Board of such change in compliance with this paragraph upon the self‑employed person making a report of the change under section 10 of the National Registration Act 1965.

Where any person has changed his or her address without informing the Board as required under paragraph (1), any notice or document given or served on the person by posting the notice or document or a copy of the notice or document to the person at his or her last known address is deemed to have been duly given or served and is conclusive evidence of the fact of service.