Sales tax is added to the price at the checkout at the rate for your state or country. Enter the price, quantity and rate to get the tax and the total; the discount field lets you price a promotion, and the second mode works backwards from a tax-inclusive receipt to the net amount and the tax it contained.
US sales tax rates combine state and local levies (0% to over 10%); VAT and GST work the same way at their own rates.
Discount and Sales Tax Calculator
The discount and tax calculator handles the two-step arithmetic of a sale: apply the discount to the price, then add sales tax, VAT or GST on the discounted amount. A $120 item at 15% off is $102; with 8% sales tax the final price is $110.16 and the overall saving is 15%. Enter a quantity to price a whole order, or switch to the second mode to work backwards from a tax-inclusive receipt to the net price and the tax portion.
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Frequently Asked Questions
How do I calculate sales tax?
Multiply the price by the rate: $120 at 8% is $9.60 tax, $129.60 total.
How do I find the price before tax?
Divide the total by 1 plus the rate: $129.60 ÷ 1.08 = $120. Use the "remove tax" mode.
Is tax applied after a discount?
Yes. Tax is charged on the amount actually paid, so discounts reduce the tax too.
