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Formula
Multiply the pre-tax price by the tax rate percentage to find the tax amount, then add to the price.
Worked Example
What Is Sales Tax?
- US sales tax rates range from 0% (Oregon, Montana) to over 10% in some localities
- Five US states have no state sales tax: Alaska, Delaware, Montana, New Hampshire, Oregon
- Sales tax is calculated on the pre-tax price: Tax = Price x Rate
- Many states exempt groceries, prescription drugs, and clothing from sales tax
Knowing how to calculate sales tax helps you budget accurately and understand the true cost of purchases before you reach the checkout.
You can also calculate changes using our VAT Calculator, Discount Calculator or Pricing Calculator.
Frequently Asked Questions
How is sales tax calculated?
Multiply the item price by the tax rate percentage. The result is added to the item price.
Which US states have no sales tax?
Alaska, Delaware, Montana, New Hampshire, and Oregon have no state sales tax.
What is the difference between sales tax and VAT?
Sales tax is applied at the point of sale only. VAT is applied at each stage of production and distribution.
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