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.
City endorsements
If your business is physically located in, or will travel to the cities listed, you can apply for their endorsements at the same time you file for your state licenses and registrations. If you will perform your work in any city not listed below, contact them directly for more information.