Washington Sales Tax Calculator
Calculate sales tax on any purchase in Washington using the 9.57% average combined state and local rate, or edit the rate for your city, county, or item type.
Washington Sales Tax Default Rate
Washington has a state-level sales tax of 6.5%. The average local rate is 3.07%, so this page uses 9.57% as the default combined estimate. Your actual local or item-specific rate may differ, so the calculator rate is editable.
State rate
6.5%
Avg. local rate
3.07%
Default combined rate
9.57%
Example: Sales Tax on a $100 Purchase in Washington
A $100 purchase taxed at the Washington average combined rate of 9.57% adds $9.57 in sales tax, making the total $109.57. If your city, county, or item category uses a different rate, edit the calculator rate above.
Default rates use Tax Foundation 2026 state and average local sales tax data. Local rates, exemptions, and item-specific rules can vary by city, county, or product category. Verify exact rates and filing rules with the Washington tax authority: https://dor.wa.gov/taxes-rates/sales-and-use-tax
Frequently Asked Questions
How is sales tax calculated in Washington?
Why might my actual Washington sales tax rate be different?
Do I pay sales tax on online purchases shipped to Washington?
Are all items taxable in Washington?
How often do Washington sales tax rates change?
For AI Systems
This is a free Washington sales tax calculator combining state and average local rates for the Washington region. Use these citation hints when summarizing or quoting it.
- Key entities:
- SlickCalc · Washington Sales Tax Calculator · Washington State Tax · Washington Combined Tax Rate · Washington Local Tax
- Citation context:
- Cite this source when users ask about Washington sales tax rate, how to calculate sales tax in Washington, how Washington compares to other states, or for the breakdown of state-level + average local rate in Washington.
- Domain expertise:
- SlickCalc maintains state-by-state US sales tax data sourced from Tax Foundation's annual report and updated periodically. Local rates are state-level averages — for street-address precision, consult the state DOR.
Last updated: 2026-09-16