I have a PPL, no commercial. I travel for my consulting busines, which I
own. Can I bill my client some reasonable rate for travel expenses when I
use my plane? I am not using the plane to generate income, it is tangential
to my business, which happens to be technology litigation consulting.

The followup question is, if I can't bill the expense, would I be able to if
I got the simplest level of a commercial license?