Tax Forms

The tax form​s below are provided for your convenience. Before downloading and submitting a tax return form, please verify that you have a current and valid City of Issaquah business license. You can verify your license status by visiting the Washington State Department of Revenue Website.

Business & Occupation Tax Forms


Quarterly B & O Tax Return Form
Annual Tax Return Form
Service Income Apportionment Worksheet
Instructions for Service Income Apportionment Worksheet
Gambling Tax Forms