This calculator requires the use of Javascript enabled and capable browsers. There are two scripts in this calculator. The first script calculates the sales tax of an item or group of items, then displays the tax in raw and rounded forms and the total sales price, including tax. You (obviously) may change the default values if you desire. Enter the total amount that you wish to have calculated in order to determine tax on the sale. Enter the sales tax percentage. For instance, in Palm Springs, California, the total sales tax percentage, including state, county and local taxes, is 7 and 3/4 percent. That entry would be .0775 for the percentage. The second script is the reverse of the first. If you know the total sales price, and the sales tax percentage, it will calculate the base price before taxes and the amount of sales tax that was in the total price. This is particularly useful if you sell merchandise on a "tax included" basis, and then must determine how much tax was involved in order to pay your sales tax, this is the ideal tool. Several state tax agencies actually suggest our calculator to merchants that could use it in that manner.
If you need to calculate the sales tax percentage and you know the sales amount and the tax amount, use our Sales Tax Percentage Calculator.
