Maximum level of hierachy levels in jira software

[Wilson Nicolás Andrés Pérez Cubillos]

Hello, I would like to kown what it's the maximum number of issuetype hierarchy levels on an advanced plan in jira software.

[Dave Mathijs]

Hi @Wilson Nicolás Andrés Pérez Cubillos welcome to the Atlassian Community!

By default, there's a maximum of 3 hierarchy levels available:

1. Epic
2. Base/ standard issue types like Task, Story, ...
3. Sub-task issue types

[Wilson Nicolás Andrés Pérez Cubillos]

In an advanced plan there's a limit number?

[Dave Mathijs]

With Advanced Roadmaps (Jira Software Premium Plan), you can create one or more additional levels above the Epic level.

[Wilson Nicolás Andrés Pérez Cubillos]

Can I create a subtask from a subtask?, 

[Juan Carlos Vera]

No, you cannot create a sub-task under a sub-task. For adding multiple levels like initiatives, you will need a Jira Premium subscription. But you still will not be able to do sub-tasks under sub-tasks. 

[Wilson Nicolás Andrés Pérez Cubillos]

About the base level, Can I split it in 5 or 6 levels o there's a maximum?