Common Error Messages when submitting a P11D to HMRC

To view P11D submission messages, go to Reports > RTI Submission Messages. You can run a report with the date range you are looking for and scroll through the messages to see any errors that may have occurred.

Common Error Messages

Below are the most common error messages you may experience when submitting a P11D to HMRC and how to correct them:

5012:

Employee’s postcode - This field is optional

Employee’s postcode is not essential, delete if you have errors in this field.

Do not exceed 8 characters for the postcode.

Try not to include unnecessary punctuation such as a full stop or hyphen in a postcode

5012 – Invalid Format:

This can be caused by a variety of things:

Date of birth - This is conditional and only needed if the NI number is missing.

Only use genuine dates (avoid 30 February, for example)

Do not use dates in the future

If NINO is present and correct then you can delete the Date of Birth entry, if you have an error here

Invalid NINO – Format - This is optional but should be added if known

If the NI number is not known, do not enter anything in the NINO field and instead make an entry in the date of birth, gender and payroll number fields

Format must be 2 letters, 6 numbers, followed by 1 letter or a space

Employee’s Address – leading spaces and punctuation

Employee’s address is not essential, delete if you have errors in this field.

Forename field – incorrect characters - This is a mandatory field.

Only use A-Z upper or lower case, hyphen or apostrophe

Do not enter a full stop, comma, underscore, brackets, slash, numbers (including 0), an asterisk (*) or question mark (?)

Do not use character ` for an apostrophe, use ’.

5012 – Entry Required:

Surname field - incorrect characters - This field is mandatory

Only use A-Z upper or lower case, numbers 0-9, comma, full stop, forward slash, ampersand (&), hyphen, space, apostrophe and brackets

The first character must be a letter

Do not leave leading or trailing spaces

Do not enter an asterisk (*) or use ‘0’ (zero) in place of ‘O’

Do not use character ` for an apostrophe, use ’. For example, ‘O’Connor’ not ‘O`Connor’.

Vehicle Make or Model - incorrect characters - This field is mandatory

Only use A-Z upper or lower case, numbers 0-9, comma, full stop, forward slash, ampersand (&), hyphen, space, apostrophe and brackets

The first character must be a letter

Do not leave leading or trailing spaces

Do not enter an asterisk (*) or use ‘0’ (zero) in place of ‘O’

1046 - Authentication error:

Check the Online filing settings: Username and Password are correct.

PAYE Reference and Tax district number need to be checked. The tax district number may have been entered ahead of the PAYE reference, if so, it needs to be removed.