Washington Sales Tax Overview
As of 2026, Washington has an average combined sales tax rate of 9%, with rates ranging from 7.6% to 10.6% depending on your specific location. The state's sales tax is managed by the Washington Department of Revenue. Washington has some of the highest combined rates due to extensive local tax authority. With 717 tracked jurisdictions, the actual rate you pay depends on a combination of state, county, and city-level taxes applied to your zip code.
The sales tax in Washington is composed of multiple layers. The state sets a base rate that applies uniformly across all jurisdictions. On top of this, individual counties and cities may add their own surcharges. This layered system means that the rate you pay can vary significantly even within the same state. For example, the lowest rate in Washington is 7.6% while the highest reaches 10.6% — a spread of 3%.
Washington Tax Examples (Average Rate)
* Based on average rate of 9%. Actual tax depends on your zip code.
Top Jurisdictions in Washington
Business Compliance in Washington
Businesses operating in Washington are required to register for a sales tax permit, collect the correct rate at the point of sale, and remit taxes on a regular filing schedule (monthly, quarterly, or annually depending on volume). Failure to collect and remit the correct amount can result in penalties, interest, and audit exposure from the state revenue department. If you sell online, be aware that economic nexus laws may also require collection in Washington if your sales exceed certain thresholds.
Frequently Asked Questions
What is the average sales tax rate in Washington?
The average combined sales tax rate in Washington is 9% as of 2026. This includes state, county, and local taxes.
What is the highest sales tax rate in Washington?
The highest combined sales tax rate in Washington is 10.6% in MILL CREEK (98012).
What is the lowest sales tax rate in Washington?
The lowest combined sales tax rate in Washington is 7.6% in KLICKITAT (98602).
How many tax jurisdictions does Washington have?
Washington has 717 tracked tax jurisdictions in our database. Each jurisdiction may have a different combined rate due to varying county and city taxes.
Does Washington charge sales tax on groceries?
Sales tax rules for groceries vary by state. In many states, unprepared food and grocery items are exempt or taxed at a reduced rate. Check with the Washington revenue department for specific exemption details, as rules can change annually.
How do I calculate sales tax in Washington?
To calculate sales tax in Washington, look up your specific zip code to find the exact combined rate. Multiply the purchase price by that rate. For example, at the average rate of 9%, a $100 purchase would incur $9.00 in tax.