How to Use This Calculator
Choose a mode: Add Tax to calculate the total from a pre-tax price, Extract Tax to find the pre-tax amount from a total that already includes tax, or Multi-Item to calculate tax on several items at once. Enter the price and your local sales tax rate to see instant results.
Finding Your Tax Rate
Sales tax rates vary by state, county, and city. Most states charge between 4% and 10%. Some areas add local taxes on top of the state rate. Enter your combined rate (state + local) for the most accurate result. States like Oregon, Montana, and New Hampshire have no sales tax.
Tax-Inclusive vs Tax-Exclusive Pricing
In the United States, prices are typically shown before tax (tax-exclusive). The tax is added at checkout. In many other countries, prices include tax (tax-inclusive). Use the "Extract Tax" mode to determine the pre-tax price and tax portion from a tax-inclusive total.
Common Sales Tax Rates
Some of the highest combined state and local rates include Louisiana (up to 11.45%), Tennessee (up to 9.55%), and Arkansas (up to 11.625%). The lowest non-zero state rates include Colorado (2.9%), Alabama (4%), and Hawaii (4%). Always verify your specific local rate for the most accurate calculation.