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Due to equipment failure (HVAC) the Tacoma field office is closed to the public today, June 15, 2026.
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)
Tax research index
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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
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