MTT53000 | Administration: The self-assessment return: ContentsFrom HM Revenue & Customs · Multinational Top-up Tax and Domestic Top-up TaxDetailsContents3 entriesMTT53010Administration: The self-assessment return: OverviewMTT53100Administration: The self-assessment return: Format and contentsMTT53200Administration: The self-assessment return: Below-threshold notificationsPreviousNext