Estimate sales tax on a purchase using your state's base rate plus any local rate you add on top.
What it means
Most US states allow counties and cities to add local sales tax on top of the state base rate. In Texas, for example, the state rate is 6.25% but cities can take it to 8.25%. This calculator handles the state portion automatically and lets you add a local rate on top.
Five states — Alaska, Delaware, Montana, New Hampshire, and Oregon (the NOMAD states) — have no statewide sales tax. Alaska and a few NOMAD localities still allow local sales tax, so check before you assume zero.
FAQ
Your state's department of revenue publishes a lookup tool by ZIP code. They're more current than any aggregator. Local rates can change once or twice a year.
No. Most states exempt groceries, prescriptions, and certain services. The rate that applies to your specific item may differ from the general rate this calculator uses.
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