I have heard that the Revenue argue that there is a personal benefit by virtue of it enabling the pilot to retain currency on the aircraft or even simply enjoy the pleasure of flying at low cost. This then affects your personal taxation quite dramatically.
Wouldn't that mean that all instructors are receiving benefits in kind as their currency is constant by nature of their work? Similar to having a fully expensed company car, although I doubt most instructors take the ir PA28 or Cessnas to and from home!
