The IRS uses specific rates for your particular zip code to arrive at
your total sales tax rate. The local sales tax rates (such as city
sales tax) can vary from town to town, and occasionally there are
additional special local sales tax districts.
You can use the
tool at the IRS website linked below to get the specific total sales tax rate for
your zip code (state and local sales tax rates).. If you wish, it will
actually calculate your sales tax deduction as well, which you can
compare to TurboTax.
Or if you just want to quickly get to the
last screen to see the sales tax rates, you can just enter estimated or
test values into the tool. It IS important that you enter the correct zip code, however.
When
you go through the short interview, on the last page it will tell you
your state sales tax rate and your local sales tax rate, which you can
add to get your total sales tax rate.
https://www.irs.gov/credits-deductions/individuals/sales-tax-deduction-calculator
