If you look on your car registration, usage tax is listed first, then registration fee, then title fee, then ad valorem tax. The usage tax is sales tax and cannot be deducted. Ad valorem tax is property tax and CAN be deducted. The registration, title and clerk's fees cannot be deducted. If it was a new car, the ad valorem tax may have been paid by the dealer or previous owner for the year and may not be listed on your fees, so you wouldn't have any to deduct on taxes for the year. The next time you register the car, you will pay ad valorem tax (in KY it is a yearly fee paid at the time of registration) and you can deduct it for that year.