Washington LLC Name Search & Naming Rules (2026)
Your Washington LLC name has to clear the Secretary of State's database before you can file. Here's how to search it free and the naming rules that trip people up.
Washington’s optional LLC name reservation costs $30, lasts 180 days and cannot be renewed. Use the current SOS form and mail/in-person delivery instructions; confirm any current portal availability before relying on an online reservation route. CCFS search is free and preliminary. A separate reservation is not required when ready to file formation, but the accepted filing remains subject to SOS name review.
- Name search
- Free — CCFS database
- Required designator
- LLC, L.L.C., or "Limited Liability Company"
- Reservation with Certificate filing
- Separate reservation optional
- Standalone reservation
- $30; 180 days; nonrenewable
- Filed with
- Secretary of State
- Portal
- Corporations & Charities Filing System (CCFS)
Washington LLC Naming Rules
- Required designator: the name must contain "Limited Liability Company" or an abbreviation — "LLC" or "L.L.C."
- Distinguishable on the record: it can't match or closely shadow any entity registered with the Secretary of State.
- Restricted words: terms implying banking, insurance, or government affiliation require proper authorization.
Check the domain before you commit: at $200 to file online, a name mistake isn't the expensive part of forming in Washington — but a branding one still is. Before you fall for a name, confirm the .com (or a clean variant) is free and grab the matching social handles. The state check takes a minute; whether your real brand is available online is what actually matters for your long-term business.
Name Checker & Availability Advisor
Washington LLC Name Checker & Availability Advisor
Format check + guidance · not a substitute for the CCFS search
Availability is determined solely by the Washington Secretary of State — run the official search before filing.
How to Search Washington Name Availability (Free)
Open the Corporations & Charities Filing System (CCFS)
Free, searches every LLC, corporation, and registered entity on file in Washington.
Search core words without the designator
Search "Cascade Woodworks" rather than "Cascade Woodworks LLC" to surface the widest set of potential conflicts.
Check close variants
Minor spelling, spacing, or punctuation differences don't reliably make a name distinguishable — when in doubt, contact the Secretary of State to confirm.
File once your search is clean
File the Certificate when ready; a separate reservation is optional and SOS still reviews the name.
The Name Reservation
Washington’s optional LLC name reservation costs $30, lasts 180 days and cannot be renewed. Use the current SOS form and mail/in-person delivery instructions; confirm any current portal availability before relying on an online reservation route. CCFS search is free and preliminary. A separate reservation is not required when ready to file formation, but the accepted filing remains subject to SOS name review.
Ahmad Adil's Take: Washington's naming process is genuinely simple, and the fact that claiming your name is free when bundled with your Certificate filing is a real convenience. My advice on names is the same everywhere: don't skip the domain check just because the state process is simple. A $200 formation cost is nothing compared to redoing your branding after you've already built a following around a name that turns out not to work online.
- ✓Optional formation assistance; confirm filing scope, service pricing and submission responsibilities.
- ✓Optional formation assistance; confirm filing scope, service pricing and submission responsibilities.
- ✓Confirm registered-agent eligibility, coverage, included periods and renewal charges.
- ✓Review address-use rules and privacy policies; a service does not remove all information from public filings.
Disclosure: LLC School may earn a commission via this link, at no cost to you. See our advertising disclosure.
180-day nonrenewable reservation
Washington’s optional LLC name reservation costs $30, lasts 180 days and cannot be renewed. Use the current SOS form and mail/in-person delivery instructions; confirm any current portal availability before relying on an online reservation route. CCFS search is free and preliminary. A separate reservation is not required when ready to file formation, but the accepted filing remains subject to SOS name review.
Washington LLC — FAQ
Ahmad Adil is the founder and CEO of LLC School. For filing and ongoing compliance, confirm the requirements with the responsible state agency. This is educational information, not legal or tax advice.
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