IMPORTANT NOTE: THIS ARTICLE HAS BEEN UPDATED DUE TO INCORRECT INFORMATION FROM HMRC - please click here for the latest information
HMRC has updated its P9X guidance ahead of the new tax year.
The 2018 version of P9X is now available for employers to view. It confirms the tax codes to change, how to change them and which to carry forward for the new tax year on 6 April 2018.