Washington law
Business Laws in Washington.
Washington business entities are governed by the Washington Business Corporation Act (RCW 23B), the Washington Limited Liability Company Act (RCW 25.15), and the Washington Nonprofit Corporation Act (RCW 24.03A). Washington adopted a substantially revised Business Corporation Act in 2019 (effective January 1, 2020). Washington is headquarters to a remarkable concentration of Fortune 100 companies — Amazon, Microsoft, Costco, T-Mobile, Starbucks, and Expedia among them — producing extensive corporate and M&A practice.
Last verified: 2026-04-20
State law
Key Washington Statutes
Washington's business-corporation statute, substantially revised effective 2020 — governing formation, shareholders, directors, mergers, and dissolution.
Washington's LLC statute — the dominant entity form for Washington businesses.
Washington's consumer-protection statute — broadly worded with a private right of action, treble damages (capped at $25,000), and attorneys' fees. Central to Washington business-litigation practice.
State law
Official Sources
Not Legal Advice
This page summarizes publicly available statutes and rules for informational purposes only. It does not constitute legal advice, and no attorney-client relationship is created by viewing this content. Laws change — always verify with the primary source or consult a licensed attorney in Washington.
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