US Sales Tax Calculator

It depends on your state, county and city because local taxes stack on top of the state rate. Search "sales tax rate + [your city]" or check your state revenue department website, then enter the combined rate here as a custom value.

Switch the calculator to "Remove tax", enter the total you paid, and enter your local combined rate. The result shows the pre-tax price and the exact tax you paid in one step.

After the South Dakota v. Wayfair (2018) decision, states can require online sellers to collect sales tax once they cross economic nexus thresholds (commonly $100,000 revenue or 200 transactions per state). Rules vary by state — consult each state's portal.

Because mandatory or voluntary pre-tax pricing displays are allowed and local rates differ street by street, stores advertise pre-tax prices and add tax at the register. That is exactly why a quick calculator is handy.

Tax = Price × Rate ÷ 100, and Total = Price + Tax. On a $100 purchase at a 7.25% combined rate: tax = $7.25, total = $107.25. Enter your local combined rate (state + county + city) in the calculator for your exact figure.

Combined state + local rates average around 6.5%–7% nationally, but they range from 0% (Delaware, Montana, New Hampshire, Oregon) to over 9–10% combined in parts of California, Louisiana, Tennessee and Washington. Always use the combined rate for your street address, not the state base rate.

Delaware, Montana, New Hampshire and Oregon charge no state sales tax (Alaska allows local borough sales taxes). Even so, a few cities or special districts levy their own — use 0% or your specific local rate in the custom field.

Base Price = Total × 100 ÷ (100 + Rate), and Tax = Total − Base. Example: from a $107.25 receipt at 7.25%, the pre-tax price is $100.00 and the tax is $7.25. Switch to "Remove tax", enter the total, and the receipt splits instantly.

Use tax is the mirrored obligation on goods you buy out-of-state (typically online) for use where you live, when the seller did not collect your state’s sales tax. Individuals self-assess it on state returns and businesses on their filings, normally at the same rate as local sales tax.

After South Dakota v. Wayfair (2018), a state can require an online seller with no physical presence to collect its sales tax once it crosses economic thresholds — commonly $100,000 of revenue or 200 transactions per state per year. Registration, collection and filing happen through that state’s portal.

No — there is no nationwide federal sales tax on goods. Sales tax exists only at state, county, city and special-district level, which is why rates range from 0% to over 10% and why your exact combined local rate is what you enter here.

Usually yes — major marketplaces (Amazon, Walmart, eBay) act as marketplace facilitators and collect state sales tax on most orders. If a small out-of-state seller does not collect it, you technically owe use tax to your own state instead.

Parts of Tennessee and Louisiana reach combined rates near 9.5–10%, Seattle approaches 10%+ and California cities exceed 9% (7.25% state plus district taxes). The chips above cover the most common combined values; use the custom field for your exact city rate.