Currently there is no option to bulk disable/delete users. If you have an external user directory you can remove that directory which will effectively remove the users from your instance.
You can also take a look at the Communities post Solved: How do you bulk delete or deactivate users? One recommendation is an addon called User Deactivator for JIRA.
One of our Partner Champions Bob Swift also stated the CLI add-on can perform bulk operations of this sort.
Workaround: Install this add-on https://chrome.google.com/webstore/detail/uivision-kantu-for-chrome/gcbalfbdmfieckjlnblleoemohcganoc in Google chrome browser. Do some excel tricks and generate the user profile URL for all the users to be off-boarded. (You can find ID for each user when you export users) Understand the JSON structure of the kantu add-on and generate JSON for the operations bringBrowsertoFront (opens google chrome browser), open (opens the URL supplied in JSON, click(clicks the toggle button in the user profile page). Tada
Introducing Jira Cloud for Excel Here at the product integrations team at Atlassian, we are thrilled to announce the new Jira Cloud for Excel add-in! This add-in lets you export Jira data directly ...
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