Business tax basics workshops

Attend a free in-person workshop or online webinar to learn about your Washington state tax reporting responsibilities. Topics include business & occupation (B&O) tax classifications, deductions, sales tax collection, and recordkeeping requirements. You’ll also have the opportunity to ask questions about state taxes that apply specifically to your business.

If you are not able to attend a workshop or webinar but would still like to learn the basics of Washington state taxes, explore the following resources:

•  Business tax basics video.
  • Spanish:  Conceptos básicos sobre los impuestos de negocios
• Business Tax Basics Guide (PDF 1.83MB) ​.
  • Spanish: Leer la guía en español (PDF 2.37MB).

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

2026 In-person workshops

Date & time	Location	Registration link
October 28, 2026 Wednesday 9:00 p.m. - 12:00 p.m.	Department of Revenue 1330 N Washington St  FL 3 RM A Spokane, WA 99204	Register for the October 28 workshop.
October 28, 2026 Wednesday 9:00 a.m. - 12:00 p.m.	Department of Revenue 2101 4th ave suite 1400 Seattle, WA 98121	Register for the October 28 workshop.
November 5, 2026 Thursday 1:00 p.m. - 4:00 p.m.	Department of Revenue 12100 NE 195th St Suite 100 Bothell, WA 98011	Register for the November 5 workshop.
November 17, 2026 Tuesday 2:00 p.m. - 4:30 p.m.	Department of Revenue  20819 72nd AVE S, STE 680 Kent, WA 98032	Register for the November 17 workshop.
December 7, 2026 Monday 1:00 p.m. - 3:00 p.m.	Department of Revenue 3315 S 23rd ST Suite 217 Tacoma, WA 98405	Register for the December 7 workshop.

2026 On-line workshops

Date & time	Location	Registration link
October 29, 2026 Thursday 10:00 a.m. - 12:00 p.m.	Combo webinar Includes My DOR How to file	Register for the October 29 webinar.
November 10, 2026 Tuesday 10:00 a.m. - 11:00 a.m.	Webinar	Register for the November 10 webinar.
December 9, 2026 Wednesday 2:30 p.m. - 3:30 p.m.	Webinar	Register for the December 9 webinar.
November 17, 2026 Tuesday 1:30 p.m. - 3:30 p.m.	Combo webinar Includes My DOR How to file	Register for the November 17 webinar.
19 de noviembre de 2026 Jueves 10:00 a.m. - 11:15 a.m.	Seminario web en español	Regístrese para el taller del 19 de noviembre.
9 de diciembre de 2026 Miércoles 11:00 a.m. - 12:00 p.m.	Seminario web en español	Regístrese para el taller del 9 de diciembre.
December 16, 2026 Wednesday 10:00 a.m. - 12:00 p.m.	Combo webinar Includes My DOR How to file	Register for the December 16 webinar.