If you’re going to be taking business deductions on your aircraft, it’s a good idea to keep a separate flight log for tax purposes. It’s going to require different information that a pilot logbook or the maintenance log for the aircraft, although those are important logs to keep as well. On you tax flight log, under section 274 of the code, there are specific pieces of information that the IRS is going to be looking for. They are going to be looking for your airport departure code and your arrival code, the flight time or engine hours of the aircraft, during each individual flight. A passenger account, so the number of passengers on the flight and also the identification of each of those passengers and how they relate to aircraft ownership. Finally, you need a description of the purpose of the flight and specifically if it’s going to be a business flight, some detail as to what the business flight is and how it relates to your core business operation is important to keep. Now not every detail of every business flight needs to be on your tax flight log, because the flight log isn’t supposed to keep you from being able to do business, but it is important that you have those specific pieces under section 274, if you plan on taking business aircraft deductions.