Sales Tax Calculator

Calculate tax, find the pre-tax price, or determine the tax rate — updates live as you type.

Common US State Rates

Rates shown are base state rates. Local/county taxes may apply and vary by location.

How to Use

  • Calculate Tax: Enter a pre-tax price and rate to see the tax amount and final total.
  • Remove Tax: Enter a tax-inclusive total and rate to back-calculate the original pre-tax price.
  • Find Rate: Enter both the pre-tax and after-tax prices to discover the effective tax rate.
  • Click any state chip to instantly fill in that state's base sales tax rate.
  • Use the Split Among People field to divide the total among a group.
  • All results update live — no button press needed.