I got mine at Sams Club but I am sure you could get it anywhere.
I do itemize everything on the invoice - I have set it up beforehand so that the prices come through and it is set up as a a taxable item.
There is a place where you can enter your expenses. My new year's resolution is to be better about this

I told myself I have to enter all my expenses by the end of each month! That way I am not scrambling to find all my receipts, etc.. at the end of the year. (kind of like right now :o )
The fees that you charge would be income not expenses. So I guess I don't understand that last question.
There is so much these programs will do - I just have to be better about doing it! Not on my high priority list - unfortunately!
Sherry