Washington County Sales Tax Rates 2026
All 10 counties · State rate: 6.5% · Avg combined: 9.18%
Washington Sales Tax Calculator
Total with Tax
$0.00
Highest Rate
10.5%
Snohomish County
Lowest Rate
8.3%
Yakima County
Average Rate
9.18%
Across 10 counties
| County | Combined Rate | State Rate | Local Rate | Population |
|---|---|---|---|---|
| King County | 10.25% | 6.5% | 3.75% | 2,270,000 |
| Pierce County | 10.1% | 6.5% | 3.6% | 920,000 |
| Snohomish County | 10.5% | 6.5% | 4% | 830,000 |
| Spokane County | 8.9% | 6.5% | 2.4% | 540,000 |
| Clark County | 8.4% | 6.5% | 1.9% | 510,000 |
| Thurston County | 9% | 6.5% | 2.5% | 300,000 |
| Kitsap County | 9% | 6.5% | 2.5% | 280,000 |
| Yakima County | 8.3% | 6.5% | 1.8% | 260,000 |
| Whatcom County | 8.7% | 6.5% | 2.2% | 230,000 |
| Benton County | 8.6% | 6.5% | 2.1% | 210,000 |
Washington City Tax Guides
Last Updated: March 2026. Consult a licensed tax professional.