Yes, you can deduct the sales tax that you pay on a leased
vehicle.
The deductible amount is the amount you paid in the 2017 tax
year, when you signed the lease. You can’t
deduct taxes in 2017 for tax that will be charged in the future, and that you
haven’t paid yet.
For more information, see “State and Local General Sales
Taxes” on page A-3 of 2017
Instructions for Schedule A (Form 1040).