Washington LLC Name Search

Check if your business name is available in Washington before you file, then see Washington's LLC naming rules, fees and filing requirements

Washington
Filing Fee
$180
Certificate of Formation
Annual Report
$70
Due by the end of the month your LLC was formed, each year
Name Reservation
$30
Holds a name for 180 days

How Much Does an LLC Cost in Washington?

Filing your Certificate of Formation in Washington costs $180. After that, the annual report costs $70 a year and is due by the end of the month your LLC was formed, each year.

  • Certificate of Formation

    Filing online adds a processing fee. Source →

    $180

  • Annual Report

    Due by the end of the month your LLC was formed, each year. You can file up to 180 days early. Late reports add $25. Source →

    $70

  • Name reservationOptional

    Holds a name for 180 days. Source →

    $30

  • Trade nameOptional

    Only if you do business under a name other than the LLC’s legal name. Source →

    $5

Checked against official Washington sources on October 23, 2026. Fees change, so confirm with the state before you file.

LLC Requirements in Washington

Formation Requirements

Basic Requirements

  • Operating Agreement (recommended)
  • Federal Tax ID (EIN)
  • Business Licenses (if applicable)

Registered Agent

Washington requires all LLCs to maintain a registered agent in the state.

Faster Processing

Expedited service costs $100 (usually within three working days), and same-day service in person costs $150.

Source →

Contact the Washington Business Filing Office

Search LLC Name isn’t a government website. For an official answer about a name or a filing, contact the state office directly.

Contact Details

Fax

360-664-8781

Address Information

Mailing Address

PO Box 40234, Olympia, WA 98504-0234

Physical Address

801 Capitol Way South, Olympia, WA 98504

Official Washington Resources

Washington LLC Name Search FAQ

Enter the name in the search at the top of this page to open Washington’s official business entity search. Search close variations too: Washington law requires a new LLC name to be distinguishable on the records of the Secretary of State (RCW 23.95.300). A clear search is a good sign, but the state makes the final call when it reviews your filing.

It must include “Limited Liability Company” or an abbreviation such as “LLC” or “L.L.C.”. Washington law requires a new LLC name to be distinguishable on the records of the Secretary of State (RCW 23.95.300). Words like Bank, Insurance or Trust usually need approval from another agency.

A Washington name reservation costs $30 and holds the name for 180 days.

Filing your Certificate of Formation in Washington costs $180. After that, the annual report costs $70 a year and is due by the end of the month your LLC was formed, each year.

Yes, Washington requires every LLC to keep a registered agent in the state who can receive legal documents for the business.

Washington requires an annual report ($70), due by the end of the month your LLC was formed, each year. You also need to keep a registered agent in the state.

Register a trade name through the Department of Revenue’s Business Licensing Service for $5, plus a $10 application fee. It’s required if you do business under another name.

LLC Name Search in Other States