Skip to main content
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.
Laws & rules
Taxpedia
Search for information regarding laws, rules, Washington tax decision, etc.
Washington Administrative Code (WAC)
- Excise tax rules (WACs)
- List of all WACs
Revised Code of Washington (RCW)
- Excise tax laws (RCWs)
- List of all RCWs
Washington Tax Decisions (WTDs)
Current and expected activities
- Overview of rule making
- Rule making agenda
- Recent adoptions and repeals
- Draft tax advisories (ETAs and PTAs)
Interpretive statements
Other guidance
Tax research index
Sign up for notifications
- Get the latest information updates on excise, estate, and/or property taxes.
