Make an employee's profile inactive
To revoke an employee's access to the system, archive the employee. This process is described in a separate article: How can I archive an employee?
Reports of an archived employee
Archived employee data is available in the reports. To find the employee in the filter, start typing their name or email.

In the reports, you can also use the Status filter and choose "All":

The cabinet icon next to a name indicates that the employee is archived.
Details of an archived employee
You can also find the archived employee on the list of Employees in Configuration → People → Status -> Archived

To check the archive date, go to Reports → People and pull the People Report. Create a new template or edit an existing one.
Type "Archive date" in the bar, and ensure you select the filter Status: All or Status: Archived to ensure the list of archived individuals is included, and download the report:
Important! Only account administrators have access to archived user data. Managers can only see active users in reports.
To see more details on changes to an employee profile, you can check the Audit changes section in the Core HR module. By filtering "Archiving time" you can see which of the admins archives the employee's profile and when:
More on Audit options here: Audit of profile changes - explained


