Trying to figure out what a CFI can legitimately deduct from taxes. Based on my reading, all recency experience needed to remain current can be deducted, including Flight Reviews, IPCs and such. But what about other things such as club dues? Clearly one needs to be a club member in order to instruct. But it gets dicey because instructing might not be the primary reason the CFI joined the club. What about trips to attend an FAA seminar? For that matter, can a trip to Airventure be deducted if the CFI spent most of his time making business connections, and attending seminars in the FAA building?