Sales Tax Calculator
Add tax to a price, or work backwards from a receipt total to the pre-tax price.
Backing tax out of a total
The common mistake is multiplying the total by the tax rate, which overshoots because the tax was charged on the smaller pre-tax amount. The correct move is dividing: pre-tax = total รท (1 + rate). A $53.61 receipt at 7.25% means the item was $49.99, not $49.72.
US sales tax varies more than people think
Five states charge no state sales tax at all (Alaska, Delaware, Montana, New Hampshire, Oregon), while combined state and local rates exceed 9% in parts of Louisiana, Tennessee and Washington. Online sellers generally must charge the rate at the delivery address.