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Calculate Sales tax US

Sales Tax States, to calculate sales tax of US States, city and zip code.

salestaxstates.com

Reverse calculator of sales tax, GST and QST in 2018

Calculation of inverted taxes for residents of Quebec in 2018

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Tax rate GST and QST for 2018

GST rates are the same since 2008 at 5%.

The QST rate is the same since 2013 at 9.975%. However, the "final rate" remains the same since 2012 as the method of calculating QST has changed on January 1st 2013.

Calculator formula

Here is how the total is calculated before sales tax:
Amount with sales tax / (1+(GST and QST rate combined/100)) or 1.14975 = Amount without sales tax
Amount without sales tax * GST rate = GST amount
Amount without sales tax * QST rate = QST amount

Margin of error for sales tax

An error margin of $ 0.01 may appear in reverse calculator of sales tax.

Due to rounding of the amount without sales tax, it is possible that the method of reverse calculation charges does not give ($ 0.01 to close) the total of sales tax used in every businesses

Reverse calculation of taxes 1994-2018

Get the excel file containing all the tools for the reverse calculation of the sales tax from 1994 to 2015. You can input new results from 2016 to 2018 in the specified cases.

Free Excel reverse calculation of sales tax



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