Welcome to the QuickBooks Community, Shelli. Let me help you invite your employees to use QuickBooks Workforce in multiple steps depending on the program you're using.

If you mean to invite employees to use the Workforce through QuickBooks Desktop for Windows, you'll need to add your employees' email addresses to their profiles. Then you'll set up the invites. This process works for existing employees.

Here's how:

1. Sign in to QuickBooks Desktop as the QuickBooks Administrator.
2. Select Employees, then Employee Center.
3. Double-click the first employee you want to invite.
4. Add their email address from the Address and Contact tab. Then, select OK.
5. Repeat steps 3-4 for all employees you want to invite.
6. Select Employees and Manage Payroll Cloud Services. If you don’t see Manage Payroll Cloud Services, update QuickBooks. 
7. From QuickBooks Workforce, turn the status On. Then select Invite Employees. 
8. Sign in with your Intuit Account. This should be the person who owns the QuickBooks Payroll license. 
9. Select the employees to add to Workforce and add their email addresses.
10. Choose Send Invite. Once sent, you should see Invited in the Status column.

Once done, you have to upload paychecks after each payroll so your employees can access them in QuickBooks Workforce. You can open this article to see the steps to achieve the process: Invite your employees to QuickBooks Workforce to see pay stubs and W-2s if you use QuickBooks Deskto.... This also provides steps on how to invite new employees so they can also use the Workforce.

However, if you're referring to inviting employees to use Workforce via QuickBooks Online, you can complete the process by following the steps outlined above. Then, you may share this article to your employees so they can view and print pay stubs in the Workforce mobile app: View your pay stubs, time off, and year-to-date pay in QuickBooks Workforce. 

Lastly, you can open the articles below if you need to run payroll report in QuickBooks Desktop or Online to view useful info about your business and employees.

• Run payroll reports
• Create a payroll summary report in QuickBooks

If you're referring to something else, please add them in the comment section. I'm always around to help you further, Shelli. Have a great day!