Diagnostic warning that alerts preparers when mandatory fields are missing.

[Sed]

I would like to suggest an improvement to the system that could enhance accuracy and efficiency for tax preparers. It would be beneficial to add diagnostic warning that alerts preparers when mandatory fields, such as a taxpayer’s last name or other critical details, are missing.

As a real example, I recently submitted an e-filing but forgot to enter the taxpayer’s spouse last name. The system allowed the submission, but it was later rejected. If an automatic warning had flagged the missing information before submission, it would have saved time and avoided the rejection.