For 2026, the sales tax rate in Spokane County, Washington stands at 8.9% — a combination of the 6.5% state rate and 2.4% local levy. The county's 540,000 residents make it an important market in the region.
For a $500 purchase in Spokane County, the sales tax would be $44.50, bringing the total to $544.50.
Business Compliance in Spokane County
Businesses must register with the Washington State Department of Revenue to collect and remit sales tax. Filing frequency depends on sales volume. With a population of 540,000, Spokane County offers significant market potential for businesses of all sizes.