FPS Submission rejected

We don't want you to have this kind of experience, Lisa. Let me guide you on how to fix your FPS submission.

A common cause of rejected FPS is the Government Gateway credentials entered. It could be due to them not being activated or being entered incorrectly.

If you haven't already, please refer to this article to learn how to activate your credentials: Turn on RTI reporting to HMRC in QuickBooks Online Standard Payroll.

Once done, follow these steps to check if the entered credentials are correct:

1. Go to the Gear icon. 
2. Choose Account and Settings.
3. Select the Payroll tab.
4. Find the Online Filing with HMRC section and click on it.
5. Verify the entered credentials and make changes if necessary.
6. Once everything is correct, click Save and then Done.

Moreover, please ensure that your PAYE and Accounts Office references are correct, and refrain from using MTD or other credentials. We should also review the information in your current FPS and other filings by navigating to Taxes, then Payroll Tax.

After verifying your credentials, try resubmitting your FPS for August. If you encounter the same issue, I recommend logging into the HMRC Online Services to reset your password or contacting them for further assistance.

Additionally, if you want to view all your submitted FPS and EPS, please refer to this article: View submitted FPS and EPS filings in QuickBooks Online Standard Payroll.

Let me know if you have further concerns about submitting your FPS. Keep safe.