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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.
Introduction to sales tax
Attend a free webinar to help you understand your sales tax collection and reporting responsibilities. This course will provide a basic overview of how and when to collect sales tax, and how to determine the correct sales tax rate for your sales. We will also demonstrate how to report retail sales using our online portal, My DOR.
If you’re not able to attend a webinar but would still like to learn about collecting and reporting sales tax, try these resources:
- Introduction to sales tax video (32:10)
- What sales tax rate do I charge? video (3:21)
- File a basic return video (8:50)
- My DOR Help
Calendar
| Date & time | Location | Registration link |
|---|---|---|
| October 8, 2025 Wednesday 1:00 p.m. - 2:00 p.m. |
Webinar | Register for the October 8 webinar. |
| October 14, 2025 Tuesday 10:00 a.m. - 11:00 a.m. |
Webinar | Register for the October 14 webinar. |
| October 21, 2025 Tuesday 2:00 p.m. - 3:00 p.m. |
Webinar | Register for the October 21 webinar. |
| October 29, 2025 Wednesday 10:30 a.m. - 11:30 a.m. |
Webinar | Register for the October 29 webinar. |
| November 13, 2025 Thursday 1:00 p.m. - 2:00 p.m. |
Webinar | Register for the November 13 webinar. |
| December 9, 2025 Tuesday 10:30 a.m. - 11:30 a.m. |
Webinar | Register for the December 9 webinar. |
