You are right BT

FAR Part 61.113
(c) A private pilot may not pay less than the pro rata share of the
operating expenses of a flight with passengers, provided the expenses
involve only fuel, oil, airport expenditures, or rental fees.

But in my eyes you could also charge the passenger for no direct flight
costs such as annual flight member fees, hangar fees. The FAR is not
realy clear in that.

1st paragraph says:
(a) Except as provided in paragraphs (b) through (g) of this section, no
person who holds a private pilot certificate may act as pilot in command
of an aircraft that is carrying passengers or property for compensation
or hire

The most important is that you do not flight for hire (earn money) or
compensation (that you fly without) costs!(compensating the costs)

Roger


don't think so Roger.. you can only "share" flight costs on the particular
flight involved (in the USofA)

BT