In most of my freelance/contract work, I've been hired to work on a team of other contractors or temporarily as part of an in-house team. The company hiring me has always taken care of the project management end of things.
I am just starting a bunch of project-based work as a solo contractor for a company with almost no in-house resources... definitely not a project manager or anyone even close to that role. I'm not doing anything even close to what an actual project manager does, but I am creating schedules & project plans and setting up a Jira-like environment to track tasks, bugs, enhancements, etc for the various projects they've got me working on that is accessible to the stakeholders in the company that has hired me, which does take some time.
I'm conflicted regarding whether or not to bill separate hours for these types of tasks... especially since I have nowhere near the skillset (as it pertains to PM) of an actual Project Manager... and aside from demanding feedback and content from the company execs, I'm not managing anyone other than myself. I feel like in past situations I may have seen it added in as a line item on the final invoice as a percentage of the total hours, which kind of makes a bit more sense to me in this scenario. Is there an industry standard here?