What Is an LLC in Washington?
A limited liability company formed under the Washington Limited Liability Company Act (RCW Ch. 25.15) separates an owner’s personal wealth from the obligations of the business. Members of an LLC are shielded from personal liability for the company’s debts; their financial exposure generally extends no further than their capital contributions.
Washington LLCs operate under one of two governance models. In a member-managed LLC, every member holds authority to bind the company and participate in day-to-day decisions. In a manager-managed structure, one or more managers who need not be members themselves direct operations on behalf of the company. The certificate of formation must declare which model applies.
For federal income tax purposes, a single-member LLC is treated as a disregarded entity and a multi-member LLC as a partnership, though either may elect corporate taxation by filing IRS Form 8832. Washington levies no personal income tax, but every LLC conducting business in the state owes the business and occupation (B&O) tax, a gross receipts tax administered by the Department of Revenue.
Washington LLC Name Search
The name chosen for a Washington LLC must be distinguishable on the records of the Secretary of State from every other entity name already on file, and it must include a required designator, “Limited Liability Company,” “LLC,” or “L.L.C.,” so that the public can identify the entity type at a glance. These requirements are established under RCW § 23.95.305.
Words that suggest banking, insurance, or governmental authority may trigger rejection or require proof of separate licensure before the Secretary of State will accept the filing. An organizer should search the Corporations & Charities Filing System to confirm a proposed name is available, keeping in mind that passing the search tool does not guarantee final acceptance — the Secretary of State makes a definitive determination when it reviews the certificate of formation.
Name Reservation: A name may be held for 180 days by filing a reservation application and paying the $30 fee authorized by RCW § 23.95.310. The reservation is transferable to another entity but not to an individual by delivering a signed notice of transfer to the Secretary of State.
Choosing an LLC Registered Agent in Washington
Every Washington LLC must designate a registered agent and maintain a registered office in the state from the moment the certificate of formation takes effect. The agent’s role is to accept service of process, legal notices, and official correspondence on the company’s behalf, and the registered office is the physical street address where that agent can be reached during normal business hours. These obligations arise under Washington’s Uniform Business Organizations Code a RCW § 23.95.415.
An individual serving as a registered agent must reside in Washington and maintain a street address in the state. An entity — whether a domestic organization or a foreign entity authorized to transact business in Washington—may also serve. The registered office must be a physical location, not a post office box, where personal delivery of legal documents is possible.
Washington law requires that a registered agent consent in a record before being named in the certificate of formation. If an agent is designated without prior consent, that person or entity may file a notarized statement to have the appointment removed. Allowing the registered agent position to lapse can result in administrative dissolution, stripping the LLC of good standing and its capacity to bring lawsuits in state courts.
LLC Filing Requirements in Washington
A Washington LLC is created by filing a Certificate of Formation Limited Liability Company with the Secretary of State under RCW § 25.15.071. Washington does not use the term “articles of organization.” The certificate of formation is the sole formation document, and the fillable PDF is available on the Secretary of State’s Filings, Forms & Information page.
The certificate must include:
- The LLC’s name, with a required designator (LLC, L.L.C., or Limited Liability Company)
- The name and address of the LLC’s registered agent
- The street address of the LLC’s registered office in Washington
- The LLC’s mailing address, if different from the registered office
- Whether the LLC is member-managed or manager-managed
- The name and address of each person executing the certificate
- A delayed effective date, if one is elected
The filing fee is $180. The Secretary of State accepts filings through three channels:
- Online: Log in to the Corporations & Charities Filing System and follow the prompts for a domestic LLC. An account must be created before filing.
- By Mail: Send the completed certificate and a check or money order for $180 to the Corporations Division, Office of the Secretary of State, P.O. Box 40234, Olympia, WA 98504-0234.
- In Person: Submit the certificate at the Secretary of State’s offices in Tumwater or Cheney.
Standard processing typically takes 7 to 10 business days. Expedited processing is available for an additional $100 per entity and is generally completed within three business days. Same-day service, available only for in-person filings, costs $150.
Note: Within 120 days of formation, a Washington LLC must file an Initial Report with the Secretary of State. The Initial Report fee is $10. After the first year, an Annual Report is due each year at a fee of $70, with the due date tied to the entity’s expiration month.
How Much Does it Cost to Create an LLC in Washington?
| Cost | Mandatory or Optional | Amount | When It Applies | Official Source |
| Certificate of Formation | Mandatory | $180 | At formation | WA Secretary of State Fee Schedule |
| Name Reservation | Optional | $30 | Before formation, holds the name for 180 days | RCW § 23.95.310 |
| Expedited Processing | Optional | $100 | At formation, ~3 business-day turnaround | WA Secretary of State Fee Schedule |
| Same-Day Processing | Optional | $150 | At formation, in-person filings only | WA Secretary of State Fee Schedule |
| Initial Report | Mandatory | $10 | Within 120 days of formation | WA Secretary of State Annual Reports |
| Annual Report | Mandatory | $70 | Annually after the first year | WA Secretary of State Annual Reports |
| Amendment to Certificate of Formation | Optional | $30 | When amending the certificate | WA Secretary of State Filings, Forms & Information |
| Certificate of Existence | Optional | $20 | When proof of good standing is needed | WA Secretary of State Fee Schedule |
| State Business License Application | Mandatory (if applicable) | Variable | At or shortly after formation | WA Department of Revenue – Apply for a Business License |
| Registered Agent (commercial provider) | Optional | Varies by provider | Ongoing | — |
LLC Operating Agreement in Washington
Washington does not require an LLC to adopt a written agreement, but the statute treats whatever understanding the members reach, written, oral, or implied, as the limited liability company agreement governing the company’s internal affairs. Under RCW § 25.15.121, such an agreement may be “entered into before, at the time of, or within a reasonable time after the filing of the certificate of formation,” and it binds the members from the moment they assent to its terms.
A comprehensive written agreement establishes who holds decision-making authority, how profits and losses are split, under what conditions new members may be admitted or existing interests transferred, and what triggers dissolution. Without one, the statutory defaults under RCW Chapter 25.15 fill every gap—the LLC is member-managed, profits and losses track the agreed value of each member’s contributions, and an assignee of a membership interest receives only economic rights, not voting power or management authority, unless the other members consent.
Even a sole owner benefits from committing the LLC’s governance rules to writing. Courts weighing whether to respect the liability shield look for evidence that the member treated the LLC as a separate entity, and a written operating agreement is among the strongest indicators of that separation. The agreement is never filed with the Secretary of State; it is retained internally by the LLC and its members.
How to Get an EIN for an LLC in Washington
A federal Employer Identification Number (EIN) is the nine-digit identifier the Internal Revenue Service assigns to an LLC for tax reporting. Any LLC that has employees, files excise or employment tax returns, or withholds taxes on income paid to a nonresident alien is required to obtain one. A single-member LLC with no employees is not strictly obligated to apply, but most banks will not open a business account without an EIN, and securing one early avoids delays when the company begins hiring or entering into contracts.
The quickest path is the IRS EIN Online Application, which issues the number immediately upon completion. The online tool is available Monday through Friday, 7:00 a.m. to 10:00 p.m. Eastern Time, and requires a valid Social Security Number or Individual Taxpayer Identification Number. Alternatively, an organizer may complete IRS Form SS-4 and submit it by fax with a response in roughly four business days or by mail, which takes approximately four to five weeks.
The application asks for the name and Taxpayer Identification Number of the LLC’s responsible party, defined as the individual who controls, manages, or directs the company and the disposition of its funds and assets. There is no fee to apply.
Note: The IRS online EIN application is available only during limited hours—Monday through Friday, 7:00 a.m. to 10:00 p.m. Eastern Time.
Registering for State Taxes in Washington
Washington imposes no personal or corporate income tax, so LLC members owe no state-level tax on their distributive shares of the company’s earnings. The LLC itself, however, is subject to the state’s business and occupation (B&O) tax, a gross receipts tax calculated on the total value of products sold or gross income earned, with no deductions for labor, materials, or other costs of doing business. Rates vary across more than 50 business classifications maintained by the Department of Revenue.
Any LLC whose gross income reaches $12,000 per year that sells products or services subject to retail sales tax or that plans to hire employees must register with the Department of Revenue through the Business Licensing Wizard. Registration is free, and the application assigns a Unified Business Identifier (UBI) number used for all subsequent state filings. If the LLC sells tangible personal property or provides taxable services, it must collect and remit Washington retail sales tax at combined state and local rates that vary by location. Sales tax registration is included in the business license application. All B&O and sales tax returns are filed through the Department of Revenue’s My DOR portal.
| Tax Type | Agency | Registration Method | Fee |
| Business & Occupation (B&O) Tax | WA Department of Revenue | Business Licensing Wizard | $0 |
| Retail Sales Tax | WA Department of Revenue | Included in the business license application | $0 |
| Use Tax | WA Department of Revenue | Included in the business license application | $0 |
Registering as an Employer in Washington
An LLC that hires employees in Washington must register with the Employment Security Department for unemployment insurance, the Department of Labor & Industries for workers’ compensation, and the Division of Child Support for new hire reporting. Because the state has no income tax, there is no separate employer withholding obligation.
Unemployment Insurance: Registration is initiated automatically when the LLC indicates on its business license application that it intends to hire employees. Quarterly reports and tax payments are filed through the ESD employer portal. Tax rates are set annually based on the employer’s industry classification and experience rating.
Workers’ Compensation: Washington operates a mandatory, state-run workers’ compensation system; employers cannot purchase coverage from private insurers. The LLC registers for a workers’ compensation account through the business license application, after which L&I assigns a rate classification and account manager. Details are available on the L&I workers’ compensation page.
New Hire Reporting: Federal and state law require employers to report newly hired and rehired employees to the Division of Child Support within 20 days of the hire date. Reports may be submitted online through Secure Access Washington, by fax to 800-782-0624, by phone at 800-562-0479, or by mail to New Hire Program, PO Box 9023, Olympia, WA 98507-9023.
| Obligation | Agency | Registration Method |
| Unemployment Insurance | Employment Security Department (ESD) | Via business license application; quarterly filing at ESD Employer Portal |
| Workers’ Compensation | Department of Labor & Industries (L&I) | Via business license application, managed by L&I |
| New Hire Reporting | Division of Child Support (DCS) | Online, by fax, phone, or mail via DCS New Hire Reporting |
The LLC must also meet federal employer obligations, including filing IRS Form 941 (quarterly payroll tax return), paying FUTA taxes, and completing Form I-9 for each new hire.