Washington Sales Tax Calculator 2026
Washington's statewide sales tax rate is 6.5% in 2026. Counties, cities, and transit districts add local rates—combined rates run from 6.5% to about 10.25%. Seattle (King County) is 10.25%, Spokane and Tacoma vary. Use the calculator above for instant estimates or our city pages for exact combined rates.
Washington Sales Tax Structure (2026)
Washington has a 6.5% state sales tax. Counties, cities, and transit districts (e.g. Sound Transit) impose additional rates; Washington has no state income tax and relies partly on sales tax.
- State rate: 6.5%
- County/city/transit add-ons: vary by locality (Seattle area up to ~3.75% local)
- Typical combined rate: 6.5% to 10.25% (Seattle 10.25%)
Sales Tax Rates for Major Washington Areas
Use city pages for the most accurate combined rate and a full breakdown.
| Area | Example combined rate | Calculator |
|---|---|---|
| Seattle (King County) | 10.25% | Seattle Sales Tax Calculator |
| Spokane | 8.9% | — |
| Tacoma | 10.3% | — |
How to Find Your Exact Washington Sales Tax Rate
Combined rates vary by county, city, and transit district. Use the calculator above with your known local rates, or look up your rate on the Washington Department of Revenue Retail Sales Tax. For Seattle: Seattle Sales Tax Calculator, or browse Washington tax calculators.