Sales Tax Calculator

Multiply the subtotal by the tax rate as a decimal, then add the result to the subtotal. For a $50 item with 8% tax: $50 × 0.08 = $4 tax, plus $50 = $54 total.

California has the highest state-level rate at 7.25%. When local taxes are included, Tennessee, Louisiana, Arkansas, and Washington often exceed 9.5% combined.

Five states have no statewide sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon. Alaska still allows local jurisdictions to add their own taxes.

In the US, no — sales tax is added at checkout, so the price you see on the shelf is before tax. This differs from most European countries, where VAT is built into the displayed price.

Divide the total by (1 + tax rate as decimal). If you paid $108.25 at an 8.25% rate: $108.25 / 1.0825 = $100.00 pre-tax.

This calculator uses the base state sales tax rate. Local taxes (county and city) can add 0.5% to 3% on top, depending on your location. Switch to Custom rate to enter your exact combined rate.

Rates were last updated in January 2026 based on official state Department of Revenue data. Rates can change mid-year — for major purchases, verify with your state’s official website.

Yes, completely free. Calculations run in your browser and nothing is sent to a server.