It's great to know you've already set up your payroll correctly, MagCAD.
If sending your Full Payment Submission (FPS) is unavailable on your end, it's best to check the following list so we can fix this:
- Check your Government Gateway sign-in details.
- Verify if the National Insurance on the Lower Earnings Limit (LEL) exceeds the maximum threshold.
- Fill in and complete the starter declaration section for new employees in QuickBooks.
- Check if you have incorrect National Insurance letter changes.
- Save the Account Office (AO) reference and Small Employers Relief in your settings.
- Remove any pay-type additions with negative values.
After ensuring that the list above is correct and the issue is still present, I advise contacting our support so they can help you submit your FPS to HMRC.
You can use these articles as a reference when reviewing your details since they contain more detailed steps regarding how to fix it:
Additionally, you can utilize this article since it contains requirements for sending your EPS filing: How to submit an EPS in QuickBooks Online Standard Payroll.
Please let us know if you have additional questions regarding submitting your FPS, MagCAD. We're still around to help you.