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

2025

Date & time Location Registration link
March 27, 2025
Thursday
2:00 p.m. - 3:00 p.m.
Webinar Full
March 28, 2025
Friday
1:00 p.m. - 2:00 p.m.
Webinar Full
April 1, 2025
Tuesday
2:00 p.m. - 3:00 p.m.
Webinar Full
April 3, 2025
Thursday
9:00 a.m. - 10:00 a.m.
Webinar Full
April 4, 2025
Friday
10:00 a.m. - 11:00 a.m.
Webinar Full
April 8, 2025
Tuesday
2:00 p.m. - 3:00 p.m.
Webinar Full
9 de abril de 2025 
Miércoles 
9:00 a 10:00 a.m. 
Seminario web en español  Taller Lleno
April 10, 2025
Thursday
11:00 a.m. - 12:00 p.m.
Webinar Full
April 11, 2025
Friday
2:00 p.m. - 3:00 p.m.
Webinar Full
April 15, 2025
Tuesday
9:00 a.m. - 10:00 a.m.
Webinar Full
April 24, 2025
Thursday
2:00 p.m. - 3:00 p.m.
Webinar Register for the April 24 webinar.
6 de mayo de 2025
Martes
2:00 p.m. a 3:00 p.m.
Seminario web en español  Regístrese para el taller del 6 de mayo.
24 de junio de 2025
Martes
11:00 a.m. a 12:00 p.m.  
Seminario web en español Regístrese para el taller del 24 de junio.
10 de julio de 2025
Jueves
9:00 a.m. a 10:00 a.m.
Seminario web en español Regístrese para el taller del 10 de julio.
July 15, 2025
Tuesday
10:00 a.m. - 11:00 a.m.
Webinar Register for the July 15 webinar.