As of January 1, 2005 the IRS has taken the guesswork out of determining the value of your vehicle for tax purposes. If your vehicle sells for less than $500 you can claim the fair market value of your vehicle up to $499. If your vehicle sells for more than $500 you can deduct the actual sale price of your vehicle. After the vehicle is sold you’ll receive a receipt for the price the the vehicle is sold for. Also note a social security number is not required if your vehicle sells below $500.