Hi there, @PHB CPAs,

Thanks for following this thread. I'd want to make sure you're able to e-file your W2's.  

To e-file in QuickBooks Desktop Payroll, ensure that you're using a supported version of QuickBooks, an internet connection, and the most recent payroll update.

If you're all set with this and have hit the Submit button, check the filing status in your Online Payroll account. If it displays "Submitted" or "In Progress, then you're good to go. If it isn't, I'd appreciate it if you can tell me what's your filing status now? Also, have you received an error code/message when you click submit? Any additional information about your concern would be of great help for me to research on this matter. 

Additionally, some states require to send the copy 1 of form W-2 to the employee's tax agency with the annual return. Check out this help article: E-file your state W-2s with Quickbooks Desktop Payroll Enhanced. It has lists of states that require specific W-2 and annual return filing information and its instructions. 

I'll be looking forward to hearing again from you. Feel free to message again and we're always around to guide you.