I recently started an automotive detailing business in Indiana. I have registered my LLC and am keeping everything as legal as possible. All of my work is mobile, I come to the customer and perform the service there. Do I have to charge for taxes if they are out of state, meaning I would travel to Ohio and do service? Another thing is it true that I should keep all receipts, such as gas and product receipts to claim on taxes? I thought you could only do that if you're a non-profit. Thank you!