// AI Research
Delphi
Broad Washington tax research across classifications, exemptions, audits, refunds, nexus, and DOR guidance. Delphi triangulates RCW, WAC, ETAs, and DOR pages to answer your question with citations.
// Capabilities
Tax Research
Cited answers across B&O, retail sales, use, and excise tax questions.
Classifications & Exemptions
Identify the right classification and applicable exemptions for your facts.
DOR Guidance
Cross-reference DOR guidance, ETAs, rulings, and interpretive statements.
Nexus & Compliance
Evaluate nexus, registration, and ongoing compliance obligations.
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// The other WTD research assistants
For matters that require individualized advice, representation, or filing support, ask about professional help.