To calculate Washington sales tax, use our calculator. It takes into account the statewide sales tax rate which is 6.5% for WA, while other sales tax rates (countywide or some local) can be entered by yourself according to the data below.
What is Washington sales tax?
Washington sales tax rate is currently 6.5%, but it can vary from 7.6% to 10.6% due to local tax rates up to 4%. Nearly half of the counties in Washington do not have either county rates or local rates, but most of them have both as an addition to the basic sales tax.
Check the table below to choose county and local sales tax rates you need.
How to calculate Washington sales tax?
WA sales tax is statewide tax rate which is made up of a basic rate plus mandatory local rate. Washington sales tax calculator takes into account only statewide tax rate so for more accurate result you should write down the local tax rates (depending on your county/district/city, etc.).
This table might be helpful for using WA sales tax calculator:
| County Name | Maximum Tax Rate | County-wide sales tax rate | Additional local sales taxes |
| Adams County | 8.2% | 1.5% | Up to 0.2% |
| Asotin County | 8.2% | 1.5% | Up to 0.2% |
| Benton County | 8.7% | 0% | Up to 2.2% |
| Chelan County | 8.6% | 0% | Up to 2.1% |
| Clallam County | 9.1% | 2.1% | Up to 0.5% |
| Clark County | 8.6% | 1.3% | Up to 0.8% |
| Columbia County | 8.4% | 0% | Up to 0.9% |
| Cowlitz County | 8.1% | 1.3% | Up to 0.3% |
| Douglas County | 8.6% | 0% | Up to 2.1% |
| Ferry County | 8.4% | 1.5% | Up to 0.4% |
| Franklin County | 8.7% | 1.6% | Up to 0.6% |
| Garfield County | 8.2% | 1.7% | 0% |
| Grant County | 8.4% | 0% | Up to 0.9% |
| Grays Harbor County | 9.1% | 2.4% | Up to 0.2% |
| Island County | 9% | 2.2999% | Up to 0.2001% |
| Jefferson County | 9.1% | 2.6% | 0% |
| King County | 10.5% | 0% | Up to 4% |
| Kitsap County | 9.2% | 2.7% | 0% |
| Kittitas County | 8.7% | 1.6% | Up to 0.6% |
| Klickitat County | 8% | 1% | Up to 0.5% |
| Lewis County | 8.2% | 1.3% | Up to 0.4% |
| Lincoln County | 8.2% | 1.7% | 0% |
| Mason County | 9.2% | 2% | Up to 0.7% |
| Okanogan County | 8.7% | 0% | Up to 2.2% |
| Pacific County | 8.9% | 1.6% | Up to 0.8% |
| Pend Oreille County | 8.1% | 1.2% | Up to 0.4% |
| Pierce County | 10.3% | 0% | Up to 3.8% |
| San Juan County | 8.5% | 1.8% | Up to 0.2% |
| Skagit County | 8.8% | 0% | Up to 2.3% |
| Skamania County | 7.7% | 1.2% | 0% |
| Snohomish County | 10.6% | 0% | Up to 4.1% |
| Spokane County | 9.1% | 1.6% | Up to 1% |
| Stevens County | 9% | 1.1% | Up to 1.4% |
| Thurston County | 9.5% | 0% | Up to 3% |
| Wahkiakum County | 7.6% | 1.1% | 0% |
| Walla Walla County | 8.9% | 1.6% | Up to 0.8% |
| Whatcom County | 8.8% | 0% | Up to 2.3% |
| Whitman County | 8.1% | 1.4% | Up to 0.2% |
| Yakima County | 8.7% | 1.5% | Up to 0.7% |
Please note that the calculator helps users for informational purposes only. Exact calculation results may vary by current location and may change over time as the tax rate changes.
More specific WA sales tax rate is established for a specific location. For example: sales tax in Seattle (King County) is 10.25%, including all basic Washington sales tax rates.
