Hello there, Abdi5.
I understand how essential it is to submit payroll on time to avoid penalties. Let me outline the causes of the Error: , fatal: 1046 - Authentication Failure. The supplied user credentials failed validation for the requested service. | Gateway error and how to fix it. This way, I can that you can achieve your goal efficiently.
One likely cause of the error you received is that you are using the incorrect Government Gateway credentials. Since you confirmed that the credentials you have provided are correct, the following are the other possible causes and solutions.
- If you copy and paste your user ID and password from elsewhere when signing in, try entering these details manually.
- Check that you’ve entered the correct PAYE reference number.
- If you’ve recently activated your account, it may take some time for HMRC to verify your account and update their platform.
If the issue persists, I recommend contacting the HMRC directly. They can provide you with detailed steps for the action you need to take to fix the error. With this, we can also make sure that you can send your payroll successfully without a fine.
In case you need steps on how you can delete a pay run and what happens after the process, you can read this article: Delete a pay run in QuickBooks Online Standard Payroll.
I've got your back if you have some follow-up questions about managing or submitting payroll in QuickBooks, Abdi5. Stay safe!
