Once you have registered your business you will receive a letter from the Department of Revenue with your UBI/account ID number and filing frequency.
You must file and pay excise taxes electronically. For more information, visit our mandatory e-file page.
If your business has received a waiver, keep in mind:
Watch a video to help plan for your business taxes.
Tax classifications are based on what type of business you conduct. Check our classification definitions to see which one(s) your business falls under.
See our list of the most common business activities, the tax classifications they fall under, and other helpful information.
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.
If you have been doing business in Washington and are not registered with the Department of Revenue, you can come forward voluntarily under the Voluntary Disclosure Program.