← All calculators
Everyday
Sales Tax Calculator
Calculate sales tax and the final price of a purchase.
Purchase details
$
%
Final price
Price including tax
$108.25
Price before tax$100.00
Sales tax$8.25
How sales tax is calculated
Sales tax is calculated by multiplying the purchase price by the applicable tax rate. The sales tax is then added to the original price to calculate the final purchase amount.
Formula
Sales Tax = Price × (Tax Rate ÷ 100)
Final Price = Price + Sales Tax