Contexts work wonderful for task segregation.
Link contains a simple demonstration of filtering through contexts,
as well as a script with which tags get automatically applied depending on the context one is in (though, does that make sense? I might think of a +Personal task to be done while in my +Work context)

"For your purpose, I would recommend to use contexts based on projects. I use that approach as well and works well with subprojects. Add to your taskrc: context.home: project.hasnt:work context.work: project:work You can switch between contexts: task context work task context home Or completely unset the context to see all tasks independent of the project task context none More about context in the docs For your Jira tickets I would add them to a subproject work.jira so you can filter them by issuing: task project:work.jira Eventually you could just use tags within your project so you can filter them with: task +jira Or a combination of project + tags"