Unless it is a car for business or an EV you do not enter anything about buying a car. Or....are you itemizing deductions ---you can enter the sales tax you paid.
SALES TAX
You can enter the sales tax you paid for the car you purchased in 2024 by going to Federal>Deductions and Credits>Estimates and Other Taxes Paid> Sales Tax. You will be asked if you paid sales tax on a major purchase, and you will be able to enter the sales tax you paid for your new vehicle.
Sales tax is an itemized deduction. Unless you have enough other itemized deductions like mortgage interest, medical expenses or charity donations, to exceed your standard deduction the sales tax will have no effect on your tax due or refund.
“Major purchases” that you can enter for the sales tax deduction include:
Motor Vehicles (cars, trucks, motor homes, RV’s, sport utility vehicles and off-road vehicles
Aircraft or boats
Mobile homes
Manufactured housing
Building materials for major home improvements
You cannot deduct: furniture, jewelry, home electronics such as TV’s or computers
If you are a business and your car is used for your business, you can enter your car purchase on your Schedule C (or business return).
If you are an individual taxpayer there is no deduction for buying a new car other than the sales tax. You can only claim sales tax if you are itemizing your deductions.
You can get to that section of TurboTax as follows to enter your sales tax:
Your TurboTax screens will look something like this: