How to File an LLC in Washington State: Steps, Fees, and Filings

To file an LLC in Washington State, you submit a Certificate of Formation to the Secretary of State for a $180 base fee, after choosing a compliant name and appointing a registered agent with a Washington street address. Once the state approves the LLC, you still need a federal Employer Identification Number from the IRS and a state business license from the Department of Revenue before you operate, plus an annual report every year to keep the company in good standing.

Pick a Name That Meets Washington’s Rules

Your LLC name has to include one of four designators: “Limited Liability Company,” “Limited Liability Co.,” “LLC,” or “L.L.C.” It also has to be distinguishable from every other entity already on file. Search the Secretary of State’s free business entity lookup before you commit to anything, including signage, domains, or logo work.

Not ready to file yet but want to lock in the name? A name reservation costs $30 and holds it for 180 days.1Washington Secretary of State. Domestic Name Reservation Reservations can’t be renewed, so treat the 180 days as a hard deadline to get your Certificate of Formation in.

Appoint a Registered Agent

Every Washington LLC must have a registered agent in the state at all times.2Washington State Legislature. Washington Code RCW 25.15.021 – Registered Agent The agent is the person or company authorized to accept lawsuits and official notices on your LLC’s behalf. They need a physical street address in Washington (no P.O. boxes) and have to be available during normal business hours to accept service.3Washington State Legislature. Washington Code Chapter 23.95 – Uniform Business Organizations Code

You can serve as your own agent, name someone you trust in Washington, or pay a commercial registered agent service (usually $35 to $300 per year). Whoever you pick has to give written consent before you list them. Acting as your own agent is fine if you have a stable physical address in the state and can be reached on weekdays, but that address becomes part of the public record.

File the Certificate of Formation

The Certificate of Formation is what actually creates your LLC. Washington uses this term for what many other states call Articles of Organization. You file it with the Secretary of State and provide the LLC’s name, the registered agent’s name and street address, a principal office address, and the effective date you want.

You can file online through the Corporations and Charities Filing System (CCFS) or by mail. The base fee is $180, with a small added online processing fee if you file electronically.4Washington Secretary of State. Fee Schedule/Expedited Service Online filings generally clear in about five business days. Mail filings run three to four weeks.

Need it faster? The Secretary of State offers two expedited tiers:5Washington Secretary of State. Filings, Forms and Information

  • Expedited service for $100, generally processed within three business days. For mail filings, add the fee and write “EXPEDITE” on the envelope.
  • Same-day service for $150, processed the day the office receives it.

Get an EIN from the IRS

An Employer Identification Number is a federal tax ID. Your LLC needs one if it has more than one member, hires employees, or elects to be taxed as a corporation. Even single-member LLCs with no employees usually get one because banks and vendors ask for it. Wait until the state has approved your LLC before you apply; the IRS will delay the application otherwise.6Internal Revenue Service. Get an Employer Identification Number

Apply online through the IRS website and the EIN is issued immediately at the end of the application. There’s no fee.

Register for a Washington Business License

Most LLCs also need to register with the Department of Revenue and get a state business license. You need one if any of these apply: gross income will reach $12,000 or more per year, you’ll hire employees, you collect sales tax, you operate under a name other than your full legal name, or your activity requires a specific endorsement.7Washington Department of Revenue. Apply for a Business License File your Certificate of Formation first; the license application comes after.

When you register, the state assigns a Unified Business Identifier (UBI) number. That’s your LLC’s account number with Washington for taxes, renewals, and updates. The application processing fee is $50, plus any endorsement or trade name fees. Renewals run $5 per year plus endorsement fees, and missing the renewal deadline can trigger a late penalty of up to $150.8Washington Department of Revenue. Variable Business License Processing Fees Depending on your industry and location, city or county licenses may apply as well. The Department of Revenue’s Business Licensing Wizard will tell you which endorsements you need.

Write an Operating Agreement

Washington doesn’t require you to file an operating agreement with the state, but every LLC should have one. It’s an internal document covering ownership percentages, how profits and losses are split, how someone exits, and who has authority to make decisions. For single-member LLCs it reinforces the legal separation between you and the business. For multi-member LLCs it’s the document that keeps disagreements from turning into lawsuits.

Without one, Washington’s default LLC rules under RCW Chapter 25.15 govern your company, and those defaults may not match what you and your co-owners actually intended. Putting it in writing early is far cheaper than untangling it in litigation.

Keep the LLC in Good Standing

Washington requires every LLC to file an annual report with the Secretary of State. It’s due by the last day of the month in which your LLC was originally formed. File in March, your report is due every year by March 31.9Washington Secretary of State. File an Annual Report (Multiple Entity Types) Online The fee is $70.4Washington Secretary of State. Fee Schedule/Expedited Service You can file up to 180 days early. Miss the deadline and your LLC’s status flips to “Delinquent” with an added $25 penalty. Stay delinquent long enough and the state can administratively dissolve the LLC, stripping away the liability protection you set it up for. Put the date on your calendar.

Washington has no personal or corporate income tax, but almost every business, including LLCs, pays the state Business and Occupation (B&O) tax on gross receipts rather than net profit.10Washington Department of Revenue. Business Tax Structure in Washington State Rates vary by activity, from 0.471% for retailing up to 1.5% for services.11Washington Department of Revenue. Business and Occupation (B&O) Tax Because it taxes gross revenue, it hits harder than the percentage suggests on thin margins. A small business B&O credit may reduce or eliminate the tax for lower-revenue LLCs. If you sell goods or taxable services, you’ll also collect and remit sales tax.

What It All Costs

Here’s the fee picture for forming and keeping up a Washington LLC:

Expedited processing adds $100, and same-day service adds $150, though most filers don’t need either.5Washington Secretary of State. Filings, Forms and Information Budget separately for B&O tax once revenue starts and for any industry-specific licenses your city or county requires.