For Agencies & Partners

Washington Tax Desk is a free site that explains Washington business taxes in plain English and links each point back to the law and to official guidance.

• Plain-English guides on new laws, with citations

  Each guide opens with a quick answer, quotes official guidance, cites the statute (quoting it where it matters), and shows the date its sources were checked.

  • ESSB 5814: services now subject to sales tax
  • Temporary staffing under ESSB 5814
  • The three Service and Other Activities B&O rates (RCW 82.04.290)
  • 2026 excise tax return due dates

• Free initial answer

  Anyone can send one Washington tax question and get a free initial answer with our reasoning and sources. A person reviews every free answer before it is sent. If a question needs deeper work, we explain why; any referral is optional, and the referred professional may charge separately.

  • Ask a question

• WA Tax Desk Weekly

  An opt-in weekly email on Washington tax changes, with each item linked to its source.

  • Newsletter

• Legislative tracker

  Washington tax bills grouped by topic, with status and official links.

  • Legislative tracker

The demo runs the signed-in portal with a fictional sample company. Nothing you enter there is saved, sent or emailed.

• Nexus checker (Nexus Monitor)

  Public preview; the working tool needs sign-in.

  PreviewNexus guide

• Voluntary disclosure

  The guide is fully public; the workflow is a public preview, and the working tool needs sign-in.

  GuideWorkflow preview

• Letter ruling

  The guide is fully public; the workflow is a public preview, and the working tool needs sign-in.

  GuideWorkflow preview

These are only ideas. Each one points to a Washington Tax Desk page that shows how it might look. If any piece is useful, you are free to use or adapt it.

1. A nexus self-check. A short set of questions on physical presence and sales thresholds that points people to the right official page. See the nexus checker preview and the public nexus guide.
2. Plain-English summaries beside new rules or notices. A short answer, a table of who's affected, and the exact statute text, placed next to the official notice. See the B&O rates and temporary staffing guides.
3. Self-help pages for common questions. One page per topic that people keep asking about, such as due dates, voluntary disclosure or letter rulings. See the due-dates article and the public voluntary disclosure and letter ruling guides.