HMRC only accepts one electronic P11D submission for each PAYE reference from your software.

This means you can't re-submit a P11D submission from your software if your initial submission contains any incorrect processing.

Before you can send HMRC any amendments, correct your employees' benefits in Sage 50 P11D:

1. Take a backup of your data.
2. Make the relevant corrections.
3. Check the affected employees' P11D forms and the P11D(b) declaration are correct.
4. Provide the affected employees with a new copy of their P11D form.
5. Print the amended P11D and P11D(b) forms:
   • Print your employee P11D forms
   • Print your Employers P11D(b) Declaration

You've corrected your P11D software and printed forms that include the changes.

Inform HMRC

Next, enter the information from the corrected forms into HMRC's online form.

Go to Gov.UK to find out more and access HMRCs form.