When claiming mileage for a self-owned business there is a radio button to select whether the mileage was all business related or if some of the mileage was non-business related and some was for personal use. I selected for both business and self-use and every time I went back to the screen with the radio button the other option for business only was selected. This in turn caused a large return for mileage which was not correct. To get around it I entered only the mileage related to my business, but this will cause improper calculations. When checking my return it was trying to deduct like $5k for mileage which is ridiculous and I had to go back and correct it.
