Can a subtask be created for a subtask?

[Abdus Sattar]

Does jira has this feature?

[Paulo Hennig · Accepted solution]

Hi Abdus, 
In addition to Warren's response, the reason why this is not possible is due to the hierarchy of the application as Project > Issue > Sub-task

You can also have multiples stories linked to an epic and have sub-tasks on stories, but this is more like an Agile concept, so if you want to have additional information about that, I'd recommend you to take a look at the article below:

https://www.atlassian.com/agile/delivery-vehicles

[Warren · Accepted solution]

No, that is not possible, as far as I know

[Abdus Sattar]

Thanks 

[Aron Gombas _Midori_]

No. Levels are limited to 2 (issues and sub-tasks).

BUT!

There is an add-on called Structure which was developed to overcomes this the two-level-only design decision (limitation). It is "wildly popular", so may be useful for you, too.