Once you process all of your employees' benefits and checked they're correct, you can submit to HMRC. Sage 50 P11D makes it easy to submit forms P11D and P11D(b) online.
HMRC's deadline for you to submit these forms is 6 July 2026. If you fail to submit on or before this date, you may be subject to a fine.
HMRC only accepts one electronic P11D submission for each PAYE reference. This means you can't submit an amendment using your software if anything is incorrect.
Check you've processed your employees' benefits correctly before you complete your submission.
Go to Internet Submissions then Submit P11D/P11D(b).
If you haven't already taken a backup, click Yes and complete the wizard.
Select the required employers, and click Continue.
To select more than one employer, hold Ctrl on your keyboard and click each required employer. To select all, select Clear then Swap
Read the Important Notice, then click Continue.
Check the Gateway Registration and Company Details are correct.
When you're ready, select Submit.
Your software validates your submission data at this point. If there are any Errors or Warnings, a window opens with details:
Errors prevent you from continuing your submission. If you see any errors, check the Location and Description columns for the cause. Click Close and resolve the error then start your submission again
Your software automatically resolves any warnings, and you can click Continue. If you'd like to find out more about the warning, check under the Location and Description columns
TIP:
For both Errors and Warnings, click the error Reference number to the left to view more information.
Check the submission summary, then when you're ready click Submit to send your data to HMRC.