Seattle Electronic Filing System

ALERT:  March 13, 2020 - Tax Filing Extension for Small Businesses

As part of Mayor Durkan's announcement of an initial recovery package to ease the financial impact of the COVID-19 outbreak, the City of Seattle is offering relief to small businesses by extending the B&O tax filing and payment deadline until later this year.   Read the guidelines for tax filing extensions download icon under the Mayor's relief plan for small businesses.

Action Required — Please transfer your account to FileLocal at

The system you are now using, SELF is being replaced by an online portal that will allow businesses to get licensed, file tax returns and pay tax for Seattle and several other cities in the Puget Sound region. Please take a moment now to register on and begin using the new system.

Please Note:

  • If you are a business that files service revenue, the SELF system will no longer be able to process your filings beginning the 1st quarter 2020. You will have to use the FileLocal portal to file your returns electronically.
  • If you are storing past tax filings on the SELF system, please print out all of your tax returns stored in the SELF system now as they will be unavailable once the SELF system is shut down.

Last Updated: 03/2020

Account Logon
Please enter your User ID or Email Address, plus your password to log in.
User ID or Email: