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P11D - Failed/Missing Authentication, check Username and Password

Article ID
p11d-failed-authentication-check-username-and-password
Article Name
P11D - Failed/Missing Authentication, check Username and Password
Created Date
18th February 2022
Product
Problem
IRIS P11D - when generate or submitting but you get Failed/Missing Authentication, check Client UTR, ID and check Password setup
Resolution

You must be on the latest IRIS version – check on Help and About.

  1. On the top left of the P11D where the company name ID is listed, select the magnifying glass and on the client select screen view that company:
  1. Select: Accountant – this normally is set to Agent. (If its set to Alternative then speak to your team to confirm if its correct). It MUST NOT be set to No accountant.
  2. Client | View | Tax tab and check the PAYE code is correct. You can delete it save and click OK and go back and enter the PAYE code again.
  3. Setup | Practice options | Tax options You may need to log in as MASTER.
  4. Open the Self Ass. or Corp tax tabs – are your agent credential ID and Password correct?,
  5. Test this by logging into the HMRC gateway with the same ID and Password. If it logs in fine then go back to P11D and delete that ID and Password.
  6. Click OK and then go back in again re-enter it again carefully and save.
  7. Do not submit right away as it remembers the old login details. Just regenerate it again and submit.
  8. If it fails again then check your Agent Password. If it contains a special character (like £, $, %, ! etc.) then this can cause this issue. Log in to your HMRC gateway and change the password so it only contains numbers and letters, save it. Then go back to step 3) and enter the updated password.
  9. If it still fails then you need to call HMRC support and speak to a senior as there are issues where HMRC can block the submission from their side.

How to set up ‘Alternative’ accountant (see step 1)

Alternative accountants are usually set up if a practice has several branches/offices which have their own Agent Credentials login details (that is, you don’t use one login for all the branches).

  1. Client | View | Accountant Set to alternative and click the magnifying glass. Either create a new one or select an existing one. You must tick ‘Can act as agent’ and click OK to save it and click view on it again. More options will show (you may need to log in as MASTER).
  2. Click Tax options and open the Self Ass. or Corp tax tabs and complete the fields with the branches correct agent credential ID and Password.

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