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HMRC internal manual

National Insurance Manual

From
HM Revenue & Customs
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Class 1 structural overview from 6 April 2009: structural changes: secondary NICs

Section 9, SSCBA 92

No changes have been made to the way in which secondary NICs are calculated. However from 6 April 2011 the Secondary Threshold (ST) is no longer aligned with the Primary Threshold (PT).

Secondary NICs are due on all earnings above the Secondary Threshold, see NIM01008, at a single percentage rate