USA Sales Tax Calculator
Add or reverse US sales tax using your verified combined local rate. See net price, tax and total in USD. No universal federal rate or address lookup assumed.
How to Use the USA Sales Tax Calculator
- 1Enter the USD amount and a verified combined sales-tax percentage for the transaction.
- 2Choose Add tax for a before-tax price or Remove tax for an inclusive total.
- 3Review the tax and price breakdown, then copy or reset.
About the USA Sales Tax Calculator
US sales tax is determined by state and local rules, not a universal federal sales-tax percentage. This page intentionally leaves the rate empty until you enter it. For an illustrative user-entered 8.25% rate, US$100 before tax has US$8.25 tax and a US$108.25 total; reversing that total means dividing by 1.0825. The example is arithmetic, not a rate recommendation. State, county, city and district taxes can combine differently by address, product, date and transaction type. Use the relevant revenue authority to verify the rate; the California link above demonstrates an official address-based source, not a nationwide lookup. Exemptions, nexus, marketplace collection and use-tax obligations are not calculated.
Why Use This Tool
Frequently Asked Questions
Enter the applicable combined rate verified with the state or local revenue authority for your transaction. This calculator does not infer a rate from your location.