I'm getting back into flying for Pilots n Paws and am exploring ways to claim the charitable donation on my taxes. On one hand, I've found that you can claim $1.27 per statute mile (which needs to be converted from NM) https://www.gsa.gov/travel/plan-boo...owned-vehicle-pov-mileage-reimbursement-rates and on the other, specifically on the form I need to fill out hourly costs. Which do I do? When I googled hourly cost for my plane I found this: https://www.aircraftcostcalculator.com/AircraftOperatingCosts/319/Piper+Cherokee+140 I don't fly 450 hours per year so I'm wondering just how they got those numbers. Additionally - If I claim $1.27 per NM I can't include the fuel/hourly cost correct? Edit: after I calculated the annual fixed/variable expenses based on 70 hours per year of flying, I came pretty close to around $232 an hour. I just figure how they got the fixed and variable costs shown on that chart.