How do I add an employee who is already a workforce user with another company?

Hi there,

Glad to have you post in the Community. I'll be happy to guide you in the right direction so you can manage your Workforce account with ease. 

You can add your employee to your Workforce account using the steps below:

1. Go to Payroll and select Employees.
2. Select Add an employee.
3. Add your employee’s First name, Last name, Email, and Hire date. This will automatically invite your employee to see their pay stubs and T4s as well as Relevé-1s.
4. If you want your new employee to add their personal info, turn on the Employee self-setup switch.
5. Select Continue.

To learn more about this, check out the following article: Invite employees to QuickBooks Workforce to see pay stubs, T4s, and more with QuickBooks Online Payroll.

Let me know if this info helps. I'll be a message away!