JIRA Software : Create a custom project template for JIRA Software Server
Can I create a custom project template for JIRA Software Server?
In JIRA Server there is no default way to create project templates. Essentially you can create a custom plugin or script that allows you and your team to develop templates for your projects with (tasks and subtasks). Here's tutorial to create a project template in JIRA Software. In the tutorial, you learn to create the plugin project, tweak the POM, add the plugin module to the plugin descriptor etc.
Another alternative is looking on the Atlassian Marketplace for available add-ons. There are several possible options that you and your team can use, for example, ‘Gaia for JIRA – Project Template Manager’.