Make sure you meet HM Revenue & Customs' (HMRC's) quality standards. HMRC will reject P11Ds that don't meet the standard. This means:
If you have already told us you don't need to complete P11D, P11D(b) or P9D then you don't need to take any further action.
If you have already made a nil P35 return but ticked the 'P11D(b) to follow' box you should file it now.
If you need to make an adjustment to the Class 1A National Insurance contributions on the P11D(b), remember not to complete Box C. You should tick the checkbox and then complete Section 4 of the form P11D(b).