What if I don't know how much sales tax I paid during 2012?
Sales tax is only deductible if it is more than your state income taxes you withheld from your W-2 (W2) forms and paid during 2012.
If you do not know the actual amount of sales tax you paid during the year, you can use the Sales Tax Deduction Calculator on the IRS website
or you can use the Sales Tax Worksheet in the Schedule A instructions which can be downloaded from the IRS website.
If you do not know the actual amount of sales tax you paid during the year, you can use the Sales Tax Deduction Calculator on the IRS website





