Seattle, WA Sales Tax Rate

The combined sales tax rate in Seattle, Washington is 10.55% (6.5% state and 4.05% city). Calculate the sales tax on any purchase in Seattle. Rates effective January 2026.

State tax

6.5%

County tax (King)

0%

City tax (Seattle)

4.05%

Special district tax

0%

Combined rate

10.55%

Source: Washington: Streamlined Sales Tax rate and boundary files (WAR2026Q4AUG27.zip), rates in effect October 1, 2026. Effective January 2026.