Depends on the service you're using. Are you on Cloud or your own Server or a server run by someone else for you? When you say "expire", are you talking about the actual account you use to log in, or your Atlassian account for maintaining licences?
Ok, JIRA will continue to work when your licence expires. It will give you a warning about an expired licence and not having support, but nothing is deleted or goes away. You'll have full access to JIRA.
Add-ons and applications have their own licences that may be renewed at the same time as the JIRA licence, and you may find their functionality stops working until they are renewed.
Atlassian Summit is an excellent opportunity for in-person support, training, and networking.Learn more
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG