Before I file

Tax classifications

Tax classifications are based on what type of business you conduct. Check out our classification definitions to see which one(s) your business falls under.

Tax classifications for common business activities

See our list of the most common business activities, the tax classifications they fall under, and other helpful information.

Sales tax rates

Use our Tax Rate Lookup Tool to find tax rates for any location in Washington. Search by address or use the map to find the rate for a specific location.