NOTICE: Effective Aug. 1, 2015, penalty rates for late tax payments are increasing. Click here for more information.
File and pay your taxes online
The Seattle business license tax is applied to the gross revenue that businesses earn. It is sometimes called the business and occupation tax (B&O tax) or gross receipts tax.
If you have questions about filing your taxes online, please contact us.
File your taxes by phone
If you do not owe money to Seattle for a tax filing period, then you can file your taxes by phone. To file, call 206-684-8484 and follow the voice prompts. You will need your customer number and obligation number.
Before you file
Business license tax overview
Overview of the Seattle business license tax that explains who pays it and how it works
Tax due dates
Learn when tax is due and the penalty for paying late
Tax rates and classifications
Descriptions of the business types in each classification and corresponding tax rates
Request a hard copy tax form
If you choose to file taxes on paper, we will send you a blank tax form to fill out