AI Research
Solomon
Focused analysis for Washington apportionment, attribution, benefit of the service, and Rule 19402 questions.
Five specialized research assistants, each scoped to a different part of Washington tax — pick the one that fits your question.
Doris
DOR website search
Natural-language search of the official Washington DOR site (and five western-state pilots) to find the right agency page.
No account needed
Delphi
Research guide
Broad Washington tax research across classifications, exemptions, audits, refunds, and DOR guidance.
Free account — 5/mo
Solomon
CurrentAttribution specialist
Focused analysis for receipts attribution, benefit of the service, Rule 19402, and receipts factor questions.
Free account — 5/mo
Scout
Refund opportunity scout
Company-specific refund opportunity scans against WA exemptions, exclusions, and 2026 law changes.
Free account — 5/mo
Oikos
REET specialist
Focused REET analysis for sales, consideration, exemptions, 1031 exchanges, and refund procedure.
Free account — 5/mo
AI Assistant
Solomon
Get cited apportionment analysis from Solomon for benefit-of-the-service, unable-to-attribute, receipts factor, and related Rule 19402 issues.
SolomonAttribution specialist
Give me the fact pattern and I will pressure-test sourcing, throw-out, and the likely authority stack.
AI-Generated Content Notice
This assistant uses artificial intelligence to provide general information about Washington State tax law. Responses are not tax or legal advice and should not be relied upon as a substitute for professional consultation. Always verify information with a qualified tax professional before making decisions.
Request a client account to upload files for analysis.
For matters that require individualized advice, representation, or filing support, ask about professional help.