Solution Properties
Solution ID:
222001000101296
Last Modified Date:
Mon Apr 22 13:08:51 UTC 2024
Taxonomy Path:
Case category//How do I...//governmental/legislative compliance
Author:
[email protected]
HMRC credentials error when filing CIS 300 Monthly Return
Description
Cause
Resolution
Error Code Message What this means
1046 Authentication Failure: The supplied user credentials failed verification for the requested service. HMRC doesn’t recognise the details you’re using to submit your returns.

What you can do

  • Check you can log into the Government Gateway and the CIS Monthly Return option is available. If you can’t log in or the CIS Monthly Return option isn’t available, please contact HMRC
  • Check you've entered the Employer's PAYE Reference and Accounts Office Reference correctly. Go to Settings then Business Settings. Select Construction Industry Scheme and ensure these details appear correct
  • Check you've entered the correct user ID and password. If the information appears to be correct, try deleting and re-entering it. This is to ensure there aren't any extra spaces or incorrect characters, and then submit again
     NOTE: Customer credentials must be 12 characters or less. If your password is more than 12 characters, only type the first 12 characters and then retry.
  • Are you registered with HMRC for online filing? Check your account with HMRC >
  • If you're filing on behalf of a client you're registered as their agent with HMRC
  • If the issue still occurs, contact HMRC’s online services helpline on 0300 200 3600

Next steps

Submit your CIS Monthly Return (CIS 300) >

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