Quick Answer
Forming a Washington State LLC costs $200 in state filing fees (plus an optional $50 expedited fee) and takes roughly 10–21 business days. Add Stratefile's $249 service fee and we handle everything — Articles of Organization, EIN, Operating Agreement, and registered agent service. Total: $449 all-in.
Why Washington State Is One of the Best States for Your LLC
Before we get into the steps, it's worth understanding why Washington State is an outstanding home for your LLC — especially if you're already based here or plan to operate in the Puget Sound region.
No Personal State Income Tax
Washington has zero personal state income tax. LLC profits pass through to your personal return without a WA state tax bite — unlike California (up to 13.3%), Oregon (up to 9.9%), or New York.
Strong LLC Protections
The Washington LLC Act provides robust charging order protections and clear member liability shields, making it one of the stronger asset-protection states in the West.
Seattle's Global Tech Ecosystem
Amazon, Microsoft, Boeing, Expedia, Zillow — Washington is home to some of the world's most recognizable companies. A WA LLC gives your business instant regional prestige.
All 39 Counties Covered
From King and Snohomish to Pierce, Kitsap, Thurston, Whatcom, Clark, and beyond — we file across all 39 Washington counties with local knowledge that national services lack.
6 Steps to Form Your Washington State LLC
Step 01: Search and Reserve Your Business Name
Your LLC name must be unique in Washington and must include "Limited Liability Company," "LLC," or "L.L.C." Search the Washington Secretary of State (SOS) Business Lookup to verify availability.
- Cannot be the same as or deceptively similar to an existing WA entity
- Cannot include restricted words like "Bank," "Insurance," or "University" without approval
- Optional: Reserve your name for 180 days for $30 via OSOS
Step 02: Designate a Washington Registered Agent
Every Washington LLC must have a registered agent with a physical WA address (no PO boxes). The agent receives legal notices, tax documents, and government correspondence on behalf of your LLC during business hours.
Note: You can be your own registered agent — but your address becomes public record and you must be available at that address during all business hours. Most owners use a professional service for privacy and convenience. Stratefile's registered agent service is included in our Complete and Premium packages.
Step 03: File Your Articles of Organization with the WA Secretary of State
The Articles of Organization is the official document that creates your LLC in Washington. File online at the OSOS portal (sos.wa.gov) or by mail.
| Method | Fee | Processing Time |
|---|---|---|
| Online (standard) | $200 | 10–21 business days |
| Online (expedited) | $250 | 5–7 business days |
| Mail (standard) | $180 | 4–6 weeks |
Stratefile handles this filing on your behalf so you never have to navigate the OSOS portal.
Step 04: Obtain Your EIN (Federal Employer Identification Number)
An EIN is your LLC's federal tax ID, issued by the IRS — similar to a Social Security Number but for your business. You need it to open a business bank account, hire employees, and file federal taxes.
- Free to obtain directly from the IRS (irs.gov)
- Apply online: typically issued immediately
- No SSN required if you're a non-US resident — Stratefile handles this process
- Required by virtually every bank before opening a business account
Step 05: Get Your Washington UBI Number & Register with DOR
When your LLC is approved, the WA Secretary of State assigns your UBI (Unified Business Identifier) — a 9-digit state-wide identifier used across all WA agencies. You'll also need to register with the Washington Department of Revenue (DOR) to obtain a business license and determine your B&O tax obligations.
Washington B&O Tax: Unlike most states, Washington has no corporate income tax. Instead, businesses pay a gross receipts tax called the Business & Occupation (B&O) tax. The rate is typically 0.471% for service businesses. Most small LLCs (under ~$125K annual revenue) qualify for the Small Business B&O Tax Credit and pay zero.
- Register at dol.wa.gov for your unified business license ($90/year)
- UBI doubles as your WA business license number
- Check if your city or county requires additional local licenses (Seattle, Bellevue, Tacoma, etc.)
Step 06: Draft Your Operating Agreement
Washington does not legally require an Operating Agreement, but it is strongly recommended for every LLC. It defines member roles, profit distribution, decision-making processes, and what happens if a member leaves.
Pro Tip: Without an Operating Agreement, Washington defaults to the state's LLC Act rules, which may not match your intentions — especially for multi-member LLCs. Banks often ask to see your Operating Agreement before opening a business account. Stratefile's Complete and Premium packages include a customized Operating Agreement at no extra charge.
Washington LLC Cost Summary
| Item | DIY Cost | With Stratefile |
|---|---|---|
| Articles of Organization filing | $200 | Included |
| Expedited processing | +$50 optional | +$50 optional |
| EIN registration | Free (but complex) | Included |
| Operating Agreement | $150–$500 (attorney) | Included |
| Registered Agent (Year 1) | $50–$300/yr | Included |
| WA Unified Business License | $90/yr | $90/yr (separate) |
| Stratefile service fee | — | $249 |
| Total (Year 1, standard) | $440–$1,090 | $449 + $90 license |
We Serve All 39 Washington Counties
Whether you're launching a tech startup in Bellevue, a food truck in Tacoma, a vineyard in Walla Walla, or a fishing business in Whatcom County — we file Washington LLCs across every county in the state.
Frequently Asked Questions
How much does it cost to form an LLC in Washington State?
The Washington State filing fee is $200 for online submissions. Expedited processing adds $50. Stratefile's all-inclusive service is $249, covering EIN, operating agreement, and registered agent service for Year 1. Total all-in: $449 standard, $499 expedited.
How long does it take to form a Washington LLC?
Standard online processing is 10–21 business days. Expedited online processing is ~5–7 business days. Stratefile submits immediately after you complete our online form and keeps you updated throughout.
Do I need a registered agent in Washington?
Yes — every Washington LLC requires a registered agent with a physical WA address. Stratefile includes professional registered agent service in our Complete and Premium packages.
What is a UBI number?
A UBI (Unified Business Identifier) is Washington's 9-digit business ID issued by the Secretary of State when your LLC is approved. It's your identifier across all WA state agencies and is required on your business license application.
Does Washington State have income tax for LLCs?
No. Washington has no personal state income tax. LLCs may owe the B&O (Business & Occupation) gross receipts tax, but most small LLCs fall under the Small Business B&O Tax Credit and owe nothing. Consult a CPA for your specific situation.
Can I form a WA LLC from outside Washington?
Yes. You can form a Washington LLC from anywhere in the US or internationally. You'll need a WA registered agent (Stratefile provides this). Non-WA residents still benefit from no personal income tax on WA LLC profits.