Important!

Disaster Relief: Revenue will work with businesses that cannot file or pay their taxes on time due to recent wildfire damage or other natural disasters. Learn more about disaster relief.

Ayuda por desastres: El Departamento de Ingresos trabajará con las empresas que no puedan presentar o pagar sus impuestos a tiempo debido a los daños causados por incendios forestales u otros desastres naturales. Conozca más sobre la ayuda en caso de desastre.

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:

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

2026

Date & time Location Registration link
27 de octubre de 2026
Martes
10:00 a.m. a 11:15 a.m.
Seminario web en español Regístrese para el taller del 27 de octubre
August 20, 2026
Thursday
10:00 a.m. - 12:00 p.m.
Combo webinar
Includes Business Tax Basics
Register for the August 20 webinar.
September 23, 2026
Wednesday
10:00 a.m. - 12:00 p.m.
Combo webinar
Includes Business Tax Basics
Register for the September 23 webinar.
October 22, 2026
Thursday
1:00 p.m. - 2:00 p.m.
Webinar Register for the October 22 webinar.
October 29, 2026
Thursday
10:00 a.m. - 12:00 p.m.
Combo webinar
Includes Business Tax Basics
Register for the October 29 webinar.