I actually do medical clinical trials full time. Human guinea pig here. I bought a sprinter van to travel to the clinics because it was cheaper than flights and hotels. I live at home with my parents but I have a business tax ID and report the income as self employment income. I might be gone for a month let's say doing a trial in Nebraska and then leaving Nebraska to do a trial in Florida and then ultimately coming back home to California to take a break or just during down time. I was going pretty hard traveling from study to study with no real personal time in between gigs for about 4 months. How much of the mileage and camp fees can I deduct? I'm thinking all of it (maybe outside of driving out out of my way to check out something here and there). I kept mile logs from leaving my parents home straight to the clinic. I also did two trials before I got the van where I did buy a flight, hotel and rental car. I assume I can write all that off too
