I just finished my class on personal income tax and it got me thinking. I drive Uber to supplement my income. Not as a full time job but definitely more than what the IRS would consider a hobby. I've purchased things like car cleaning supplies, specific insurance for ride share drivers, apps to monitor and track mileage, and other things that make it clear I'm doing it as a business. However the vehicle I drive for Uber is also the same one my family uses for personal use. So if I go to sell the vehicle, how is the disposition of that asset treated for tax purposes? Since it's partially used for business does it qualify as a capital asset? I don't think the IRS has guidelines for this specific situation. But since I did drive the vehicle partially for a business, and I take a loss on selling the vehicle, could I deduct a portion of the loss? If so how do you determine the exact percent?