You may be able to deduct certain taxes related to the purchase. Here's how:
1. Select the Federal Taxes tab
2. Select Deductions and Credits
3. Select Cars and other things you own. Go through the interviews in this section to see if you may be eligible to deduct certain taxes associated with your car.
4. After you have completed that interview and return to the Deduction & Credits page, scroll down to Estimates and Other Taxes Paid to go through the Sales Tax interview under and enter the sales tax you paid on the automobile.