I’m glad you’ve reached out to us, @OA12.
Once an employee was invited to access their W2s online, their account on the workforce will remain active. Employees can still access their accounts even they were terminated. They're only unable to view the forms and pay stubs if their employer is no longer used the workforce and payroll service.
If the employee needs his/her W-2 from previous years, they’ll want to contact their employer. Terminated employees won’t appear as active in the payroll list. But their profile and pay records remain on the employer’s account and still appear on reports.
You can visit these resources for more information about accessing paychecks and W-2s in QuickBooks Workforce.
Please add a comment below if you have additional concerns with employees. I’ll be more than happy to assist you further. Have a good one.