My DOR - How to file an Excise Tax Return

Attend a free webinar to learn how to file basic excise tax returns using our online portal, My DOR. We will demonstrate how to report for three business and occupation tax classifications (retailing, wholesaling, and service and other activities), deductions, credits, and litter tax.

If you haven’t already, please watch our Business Tax Basics video, or sign up to attend a Business Tax Basics workshop in person or online before taking the My DOR – How to file an excise tax return webinar. 

If you're not able to attend a webinar but would still like to learn about filing your excise tax return in My DOR, try these resources:

•  File a basic return video (8:50)
• My DOR help

If you need accommodations in order to attend a workshop, please email tpseducationoutreach@dor.wa.gov or call 360-704-5683.

2026