It depends. First, you must itemize to do so. Then, you must choose to deduct state and local sales tax rather than state and local income taxes. If you make this choice, you can add the sales tax on the car to the amount of sales tax that the IRS allows for your household size and income.
A sale of property that allows for tax deferment if at least one payment is received after the end of the tax year in which the sale occurs. The installment method does not apply to year-end sales of publicly traded securities. Dealers may not use the installment method. Investors with very large installment balances could face a special tax.