Before claiming a deduction for sales tax on your home, check your real estate bill to make sure you paid sales tax.
Per IRS Instructions for Schedule A, page 6:
Line 7. Enter on line 7 any state and local general sales taxes paid on the following specified items. If you are completing more than one worksheet, include the total for line 7 on only one of the worksheets.
To claim your State and Local General Sales Tax Deduction, for sales tax you paid on your home, in the TaxAct program (if you need help accessing the sales tax section of the TaxAct program, go to our Sales Tax - Entering in the Program FAQ):
Note that any link in the information above is updated each year automatically and will take you to the most recent version of the webpage or document at the time it is accessed.