Soap Lake, WA Sales Tax Rate

The combined sales tax rate in Soap Lake, Washington is 8.4% (6.5% state and 1.9% city). Calculate the sales tax on any purchase in Soap Lake. Rates effective July 2022.

State tax

6.5%

County tax (Grant)

0%

City tax (Soap Lake)

1.9%

Special district tax

0%

Combined rate

8.4%

Source: Washington: Streamlined Sales Tax rate and boundary files (WAR2026Q4AUG27.zip), rates in effect October 1, 2026. Effective July 2022.