It's great to see you in the Community, Felicia.
Currently, we're unable to set a pay category for an employee, like making them casual, part-time, or full-time workers. Are you using the UK version?
I got an IRS article about identifying a full-time employee. I hope this helps: https://www.irs.gov/affordable-care-act/employers/identifying-full-time-employees
You can always go back to this thread if you have other questions in mind.
