NIM01250 | Class 1 structural overview from 6 April 2009: structural changes: the Class 1 and 2 annual maximum: contentsFrom HM Revenue & Customs · National Insurance ManualDetailsContents1 entryNIM01252Class 1 structural overview from 6 April 2009: structural changes: the Class 1 and 2 annual maximum: employees in contracted-out employmentPreviousNext