Please note: HM Revenue & Customs guidance can be found on the GOV.UK website. We provide links to the key information below.
Tell HMRC about a change to your business
Tell HMRC about changes to your business - a change of name, address, legal structure or business activity
Tell HMRC about a change to your personal details
How to tell HMRC if there's a change to your personal details - address, name, income, marital status, gender