Sales Tax Calculator
Add sales tax to a price or work backwards from a total (reverse sales tax). Includes the base sales tax rate for every U.S. state.
State base rates only. Most cities and counties add local tax — enter it above, or type your full combined rate in “Tax rate”.
Price before tax–
Sales tax–
Total price–
How to calculate sales tax
Sales tax = Price × Rate ÷ 100, and Total = Price × (1 + Rate ÷ 100). Example: $100 at 7.25% → $7.25 tax, $107.25 total.
Reverse sales tax
To find the price before tax from a receipt total, divide by (1 + Rate ÷ 100). Example: $107.25 ÷ 1.0725 = $100.00, so the tax was $7.25.
State sales tax rates
Base statewide rates (local taxes not included). Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax. Rates change — confirm with your state’s department of revenue for filings.