Glad to have you post in the Community again. Sometimes it's necessary to make an employee inactive and I can help you with that. QuickBooks offers a flexible platform that enables you to get your work done faster.
Here are the steps you can follow:
Go to the Payroll menu, then go to the Employees tab.
Click the name of the employee.
Select Edit employee.
At the bottom, choose Delete employee.
For more helpful info on deleting and making an employee inactive, I encourage you to check out this Community thread here. Give this a try and let me know how you make out. I'll be one message away in case you have additional questions.