Logs. Similar to owning a car that is owned by a business... supposed to keep logs of where one goes... picking up the 8 year old at Soccer practice in the LLC-owned $75,000 Tahoe is not a legit expense. The rules are mainly set up for business jets... with 2 pilots on payroll, a hangar, fuel, maintenance costs, owning a private jet is millions per year and therefore a major tax deduction. This is one of the reasons why NetJets and others became so popular. In addition to getting rid of the headaches involved in a Flight Department, which is a business in itself, the deductions are somehow simpler. When I fly to Westhampton Long Island in my personally owned, non-deducted 2 seater plane, stopping in for the best French Toast in America at the airport, I am parked near many Corporate jets. I don't think those jets are there "working"... God bless America.