LLC name availability in Washington

The official tool for a Washington LLC name search is the Corporations and Charities Filing System (CCFS), maintained by the Washington Secretary of State. Go to `ccfs.sos.wa.gov`, select "Search," enter your desired business name, and the system returns all registered entities that match or closely resemble your input.

The CCFS search checks registered LLC names, corporations, and other entities on file with the Washington Secretary of State. It does not check trade names filed with the Washington Department of Revenue, and it does not check domain availability. A clean result on CCFS tells you the state slot is open. It tells you nothing about whether `yourbusiness.com` is already parked by a competitor.

BizNameChecker.com solves both problems in one search. Enter your business name once, and the tool checks Washington LLC availability alongside 30+ domain extensions simultaneously. No tab-switching. No false confidence from a state-only result.

The official CCFS portal at `ccfs.sos.wa.gov` is the authoritative source for Washington entity name availability

CCFS does not check domain names. BizNameChecker.com checks all 50 states and your domain in one search — free

A clean CCFS result does not protect your trade name with the Washington Department of Revenue or your brand at the federal level

Washington LLC names must be "distinguishable upon the records" from all other registered entities, according to RCW 23.95.305 and the Uniform Business Organizations Code (UBOC). Distinguishable does not mean letter-for-letter different. The Washington Secretary of State can reject a name that reads differently but is functionally too similar to an existing registration.

Here are the mandatory rules:

Required designator. Your LLC name must include "Limited Liability Company," "Limited Liability Co.," or the abbreviation "LLC" or "L.L.C." No exceptions.

Prohibited words. Words that imply a government affiliation — "FBI," "Treasury," "State Department" — are prohibited. Words suggesting a licensed profession you are not credentialed for, such as "Bank," "Insurance," or "Attorney," require additional state approval or are outright barred.

No deceptive names. Washington prohibits names likely to mislead the public about the nature of the business.

Punctuation and spacing. The CCFS system treats certain punctuation variations as identical, so "Smith & Co LLC" and "Smith and Co LLC" may be treated as conflicting names.

Washington allows founders to reserve an LLC name for 180 days before filing formation documents. The fee is $30, filed with the Washington Secretary of State via the CCFS portal or by mail.

Name reservation makes sense in two scenarios. First, if you are not ready to file your Articles of Organization but want to block a competitor from registering the same name. Second, if you are waiting on professional licensing, a co-founder agreement, or financing before committing to formation.

A name reservation is not a trademark. It does not protect your name in other states, and it does not prevent someone from registering a confusingly similar name in a different entity class or in another jurisdiction. If brand protection matters to your business, a USPTO federal trademark application runs parallel to — and separate from — your Washington state filing.

Reserve only after you have confirmed both the state name and your domain are clean. Paying $30 to hold a name only to discover the `.com` was registered in 2019 is a common and avoidable mistake.

BizNameChecker.com checks all 50 states and your domain in one search — free.

Washington name reservations last 180 days and cost $30, filed through the Washington Secretary of State

Washington routes business identity across more than one agency, which creates real confusion for new founders. Here is how the system breaks down:

Washington Secretary of State (WA SoS). Registers your LLC's legal entity name. This is the name that appears on your Articles of Organization and gives you legal standing in Washington. The CCFS portal is the search and filing interface for this agency.

Washington Department of Revenue (WA DOR). Governs trade names and DBAs (Doing Business As). If your LLC operates under a name different from its registered legal name, you file a trade name with the Washington Department of Revenue at `dor.wa.gov`. A trade name filing does not reserve or protect a legal entity name with the WA SoS.

USPTO. Federal trademark registration is separate from both state agencies and protects your brand name nationwide. The Washington Secretary of State has no jurisdiction over federal trademarks, and clearing your name through CCFS does not guarantee trademark availability.

Most entrepreneurs searching for a "washington LLC name search" are trying to solve all three problems at once. The state system is siloed by design. Understanding which agency governs which piece of your business identity prevents costly rework after formation.

According to the International Trademark Association (INTA), more than 50% of small business owners are unaware that state LLC registration does not confer any trademark rights. This gap frequently results in rebranding costs after formation.

| Action | Fee | Processing Time | Where to File |

|---|---|---|---|

| LLC Formation (Articles of Organization) | $200 | 2–3 business days (online) | CCFS — `ccfs.sos.wa.gov` |

| Name Reservation | $30 | Same day (online) | CCFS — `ccfs.sos.wa.gov` |

| Annual Report | $60 | N/A | CCFS — `ccfs.sos.wa.gov` |

| Trade Name Registration (DBA) | $5 | Varies | WA DOR — `dor.wa.gov` |

According to the Verisign Domain Name Industry Brief, over 350 million domain names are currently registered globally across all TLDs. For common English-word combinations, the odds of a clean matching `.com` being available are estimated at less than 30%.

That math is brutal for founders who confirm their Washington LLC name is clear on CCFS and assume the web is equally open. The state database and the domain registrar ecosystem are completely independent systems. A name can be perfectly available in Washington and completely locked up online.

The practical consequence. You could file your LLC, pay your $200, receive your formation documents, print business cards — and then discover your `.com` is a parked page owned by a domain squatter asking $4,000.

BizNameChecker.com eliminates that gap. Search your intended LLC name once. The tool returns Washington state availability alongside `.com`, `.co`, `.io`, `.net`, `.biz`, and 30+ other extensions simultaneously. Zero additional tabs. Zero false confidence from a state-only search.

Alternatives have real gaps worth knowing. ZenBusiness and LegalZoom both check business name availability — but inside a paid formation funnel, not as a standalone free tool, and neither runs a simultaneous domain check. GoDaddy searches domains but has no LLC database. The Washington Secretary of State's own CCFS portal is authoritative for state data and nothing else.

BizNameChecker.com checks all 50 states and your domain in one search — free.

Washington's naming requirements are stricter than most founders expect. The "distinguishable upon the records" standard under RCW 23.95.305 means the Washington Secretary of State can reject names that are not exact duplicates. The multi-agency structure — WA SoS for entity names, Washington Department of Revenue for trade names — creates a fragmented process that the official portals do not unify. Domain availability is a completely separate problem that no state system addresses.

The fastest path to confidence before you file.

1. Run your name through BizNameChecker.com to check Washington LLC availability and domain extensions simultaneously

2. Verify the result directly on the Corporations and Charities Filing System (CCFS) at `ccfs.sos.wa.gov`

3. If your name is clear on both, reserve it with the Washington Secretary of State for $30 before you file your Articles of Organization

4. If you plan to operate under a different name, register your trade name separately with the Washington Department of Revenue

An LLC name search is a background check to verify that your desired business name isn't already registered in Washington state. According to the Washington Secretary of State, conducting this search before filing helps you avoid rejection of your Articles of Organization and prevents potential trademark or name conflict issues. It's a crucial first step that takes just minutes but can save you significant time and filing fees.

You can search for LLC names directly through the Washington Secretary of State's online business database at sos.wa.gov/corps. Simply enter your desired business name and the system will show you all registered entities with similar names. The search is free and provides real-time results, making it the most reliable way to check availability before filing your LLC formation documents.

If your desired name is already registered, you'll need to choose a different name and conduct another search. According to Washington state regulations, you can modify the name slightly (such as adding "LLC," "Inc.," or a descriptor), but it must still be sufficiently different from existing names to avoid confusion. You can perform unlimited searches until you find an available name that works for your business.

A Washington state LLC name search only confirms availability within state records—it doesn't guarantee trademark rights. The U.S. Patent and Trademark Office (USPTO) recommends conducting a separate federal trademark search at uspto.gov, as your name could conflict with federally registered trademarks nationwide. Even if your LLC name is available in Washington, you could face legal issues if it infringes on existing federal trademark rights.

Washington allows you to file a Name Reservation Request with the Secretary of State to hold your chosen name for 180 days while you prepare your LLC formation documents. This costs $30 and provides legal protection during the formation process, though it's not required if you're filing your Articles of Organization immediately.