Auto Registration
Menu Path: Deductions/Credits > Itemized Deductions > Taxes Paid
Most state car registration fees aren't based on your vehicle's value, so they aren't deductible. You can only deduct auto registration costs if you itemize AND the fee is based on the value of your car, not on things like weight, age, or a flat rate.
Enter any deductible auto registration taxes on the Deductible Taxes Paid screen as personal property taxes.