Washington Sales Tax Calculator
Calculate Washington sales tax using a typical combined state and local rate, or enter the rate for your city, RTA, and local add-ons.
Enter Values
Use your Washington address combined rate including RTA when applicable
Result
Enter values above and click Calculate to see your result.
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Formula
Washington combines the state rate with local city, county, regional transit authority, and other local taxes that vary by address.
Worked Example
Frequently Asked Questions
Why is Washington combined sales tax often above 9%?
Washington adds local components such as city, county, and regional transit authority taxes in many areas, which raises the combined rate.
Does Washington have an income tax offset?
Washington funds services largely through sales tax and other taxes rather than a broad personal income tax. Focus on the rate for your purchase location.
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