NIM13005 – Class 1A National Insurance contributions: Liability for Class 1A NICs: Guidance for employers


Guidance on Class 1A NICs for employers is contained in the following HMRC publications


  • Leaflet and forms – available as part of the employers’ annual pack and on HMRC’s internet site
  • Leaflet CWG5: Class 1A NICs on Benefits in KindLeaflet CA33: Cars and Fuel Class 1A National Insurance contributions on car and fuel benefits
  • E10 Employer Helpbook: Finishing the tax year
  • E12 Employer Helpbook: PAYE and NICs rates and limits
  • P11D Guide: A brief guide to help employers complete forms P11D and P11D(b)
  • P11D Working Sheets: Optional working sheets for calculating the cash equivalent of certain benefits. For example, P11D working sheet 1 helps an employer calculate the cash equivalent in respect of certain living accommodation
  • Available online
  • A guide to expenses and benefits in kind (EBIK).
  • Dealing with expenses and benefits.