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Starting October 1: Some business services are now subject to retail sales tax, as required by state law, ESSB 5814. When you buy these services, vendors should add sales tax to your bill. If you sell these services, you should begin collecting retail sales tax. Learn more about Services newly subject to retail sales tax.
Business tax basics workshops
Attend a free tax workshop to learn about your tax reporting responsibilities. We will discuss tax classifications, deductions, sales tax collection, and recordkeeping requirements. You'll also have the opportunity to ask questions about taxes that apply specifically to your business.
If you're not able to attend a workshop but would still like to learn about tax basics, 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 |
|---|---|---|
| November 12, 2025 Wednesday 10:00 a.m. - 12:00 p.m. |
Department of Revenue 6400 Linderson Way SW Tumwater, WA 98501 |
Register for the November 12 workshop. |
| November 18, 2025 10:00 a.m. - 12:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the November 18 workshop. |
| November 19, 2025 Wednesday 2:00 p.m. - 4:30 p.m. |
Department of Revenue Cascade East Bldg 20819 72nd Ave South, Suite 680 Kent, WA 98032 |
Register for the November 19 workshop. |
| November 19, 2025 Wednesday 2:00 p.m. - 3:00 p.m. |
Webinar | Register for the November 19 webinar. |
| December 4, 2025 Thursday 10:00 a.m. - 11:00 a.m. |
Webinar | Register for the December 4 webinar. |
| 4 de diciembre de 2025 Jueves 2:00 p.m. a 3:15 p.m. |
Seminario web en español | Regístrese para el taller del 4 de diciembre. |
| December 16, 2025 Tuesday 9:00 a.m. - 10:00 a.m. |
Webinar | Register for the December 16 webinar. |
| December 17, 2025 Wednesday 10:00 a.m. - 12:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the December 17 webinar. |
| December 18, 2025 Thursday 1:00 p.m. - 3:00 p.m. |
Department of Revenue 3315 S 23rd St, Suite 217 Tacoma, WA 98405 |
Register for the December 18 workshop. |
2026
| Date & time | Location | Registration link |
|---|---|---|
| January 6, 2026 Tuesday 10:00 a.m. - 11:00 a.m. |
Webinar | Register for the January 6 webinar. |
| 7 de enero de 2026 Miércoles 10:30 a.m. a 11:45 a.m. |
Seminario web en español | Regístrese para el taller del 7 de enero. |
| January 15, 2026 Thursday 11:00 a.m. - 12:00 p.m. |
Webinar | Register for the January 15 webinar. |
| January 27, 2026 Tuesday 10:00 a.m. - 12:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the January 27 webinar. |
| February 4, 2026 Wednesday 2:00 p.m. - 3:00 p.m |
Webinar | Register for the February 4 webinar. |
| 10 de febrero de 2026 Martes 9:00 a.m. a 10:15 a.m. |
Seminario web en español | Regístrese para el taller del 10 de febrero. |
| February 12, 2026 Thursday 2:00 p.m. - 3:00 p.m |
Webinar | Register for the February 12 webinar. |
| February 19, 2026 Thursday 11:00 a.m. - 12:00 p.m |
Webinar | Register for the February 19 webinar. |
| February 24, 2026 Tuesday 10:00 a.m. - 12:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the February 24 webinar. |
| March 3, 2026 Tuesday 10:00 a.m. - 11:00 a.m. |
Webinar | Register for the March 3 webinar. |
| 10 de marzo de 2026 Martes 10:00 a.m. a 11:15 a.m. |
Seminario web en español | Regístrese para el taller del 10 de marzo. |
| March 11, 2026 Wednesday 2:00 p.m. - 4:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the March 11 webinar. |
| March 18, 2026 Wednesday 10:00 a.m. - 11:00 a.m. |
Webinar | Register for the March 18 webinar. |
| March 26, 2026 Thursday 10:00 a.m. - 12:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the March 26 webinar. |
| April 2, 2026 Thursday 10:00 a.m. - 11:00 a.m. |
Webinar | Register for the April 2 webinar. |
| April 8, 2026 Wednesday 2:00 p.m. - 4:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the April 8 webinar. |
| April 14, 2026 Tuesday 2:00 p.m. - 3:00 p.m. |
Webinar | Register for the April 14 webinar. |
| 16 de abril de 2026 Jueves 10:00 a.m. a 11:15 a.m. |
Seminario web en español | Regístrese para el taller del 16 de abril. |
| April 23, 2026 Thursday 1:00 p.m. - 3:00 p.m. |
Combo Webinar includes My DOR How to File |
Register for the April 23 webinar. |