How to Start an LLC in Washington State (2026)
Forming an LLC in Washington State starts with filing a Certificate of Formation with the Secretary of State for $180. This guide walks you through every step, from picking a name to opening your business bank account.
In This Article
What You'll Learn in This Guide
This guide walks you through every step to legally form a Limited Liability Company (LLC) in Washington State — from picking a name to staying compliant year after year. We've kept it practical, current, and free of unnecessary fluff.
Note
Washington State LLC formation costs $200 in state fees. Most founders complete the process in 5 business days, either DIY or through a formation service starting at $0.
Washington State LLC: Quick Facts
Last Verified: Feb 2026- Filing Fee (Online)
- $200
- Processing Time
- 5 business days
- Expedited Available
- No
- Annual Report
- $60*
- State Income Tax
- No
- Sales Tax Rate
- 6.5%
- Filed With
- Washington Secretary of State
- Last Verified
- February 21, 2026
* Annual Report: $60, due By the last day of the anniversary month
What You Need to Know About Forming an LLC in Washington State
A Washington LLC creates a legal barrier between your personal assets and your business obligations. If your LLC is sued or takes on debt, your personal savings, home, and other property stay protected. That separation is the core reason most founders choose an LLC over operating as a sole proprietorship.
Washington is one of the few states with no personal or corporate income tax. Instead, your LLC will be subject to the state's Business and Occupation (B&O) tax, which is calculated on gross receipts rather than net profit. That's a meaningful difference from most states, and it's worth understanding before you project your costs. The state filing fee is $180, and you'll owe $60 per year for your Annual Report.
The process itself is straightforward. You'll reserve or verify your business name, designate a registered agent with a Washington address, file your Certificate of Formation, and then handle a few post-formation tasks like getting an EIN and opening a bank account. Upon formation, Washington issues a Unified Business Identifier (UBI) number that you'll use for all state agency interactions going forward.
Choose a Name for Your Washington State LLC
Your LLC name must be distinguishable from every other business on file with the Washington Secretary of State and follow specific formatting rules.
Your LLC name needs to be distinguishable from any other business entity already registered in Washington. You can check availability using the Secretary of State's free online search tool at ccfs.sos.wa.gov. If your preferred name is available and you aren't ready to file yet, you can reserve it for 180 days for a $30 fee.
Search available names →Washington LLC Naming Requirements
Name Reservation (Optional)
- Search name availability at ccfs.sos.wa.gov
- File a name reservation for $30 if you need more time
- Reservation lasts 180 days
State Specific
Washington lets you reserve a name for 180 days for $30, which is longer than most states offer.
Pro Tip
Search the Washington business name database before you get attached to a name. It's free and takes about 30 seconds.
Choose a Registered Agent in Washington State
Washington requires every LLC to designate a registered agent with a physical street address in the state who can accept legal documents on your behalf.
Your registered agent is the person or company designated to receive legal notices, tax correspondence, and official state documents for your LLC. In Washington, your registered agent must be an individual resident over 18 or a business entity authorized to operate in the state, and they must have a physical street address in Washington (no P.O. boxes).
Your Three Options
- You can serve as your own registered agent if you have a Washington street address and are available during business hours
- A trusted friend or family member who lives in Washington and is over 18 can serve for free
- A professional registered agent service (typically $50 to $300 per year) handles it reliably and keeps your personal address private
Pro Tip
If you work from home, using a professional registered agent service keeps your home address off public records.
File Your Certificate of Formation with Washington State
This is the official filing that creates your LLC. You'll submit your Certificate of Formation to the Washington Secretary of State online or by mail.
The Certificate of Formation is the document that officially brings your Washington LLC into existence. You can file online through the Secretary of State's Corporations and Charities Filing System, or you can download the form and mail it in. Online filing is faster and includes the required Initial Report in the same transaction. When your LLC is approved, Washington will issue a Unified Business Identifier (UBI) number, which you'll use for all state agency interactions including tax filings and licensing.
File Online
File by Mail
State Specific
Filing online includes the Initial Report at no extra charge. If you file by mail, you'll need to submit the Initial Report separately within 120 days, which costs an additional $10.
Important
You must file an Initial Report with the Secretary of State within 120 days of formation. If you file your Certificate of Formation online, this is included automatically. If you file by mail, don't forget to submit it separately.
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Beginner-friendly LLC formation with transparent pricing and a free starter option. From $0 + state fees.
Get an EIN for Your Washington LLC
An EIN is a federal tax ID number from the IRS. You need one to open a business bank account, hire employees, and file federal taxes.
You can get an EIN for free directly from the IRS website at irs.gov. The online application takes about 10 minutes, and you'll receive your EIN immediately upon completion. You'll need your LLC's legal name, your UBI number, and a responsible party's Social Security number to apply.
Apply for your EIN on IRS.gov →Create an Operating Agreement for Your LLC
An operating agreement spells out how your LLC is owned, managed, and run. Washington doesn't require one, but every LLC should have one.
Washington does not legally require an operating agreement, but banks, investors, and courts all look for one. This is an internal document (you don't file it with the state) that defines ownership percentages, how profits are distributed, decision-making authority, and what happens if a member leaves. Without one, Washington's default LLC statutes will govern your business, and those defaults may not match what you actually want.
Key Sections to Include
Pro Tip
Even single-member LLCs benefit from an operating agreement. It strengthens the legal separation between you and your business, which is the whole point of forming an LLC.
Open a Business Bank Account for Your Washington LLC
A separate business bank account protects your personal liability shield and makes bookkeeping far simpler from day one.
Mixing personal and business finances is one of the fastest ways to lose your LLC's liability protection. A court can "pierce the corporate veil" if it looks like your LLC is just a personal account with a different name. Open a dedicated business checking account as soon as you have your EIN, and run all business income and expenses through it.
What to Bring to the Bank
- Your filed Certificate of Formation (approved copy from the Secretary of State)
- Your EIN confirmation letter from the IRS
- Your operating agreement
- A valid government-issued photo ID
- Your UBI number issued by Washington State
Top 3 LLC Formation Services
We've independently reviewed the top LLC formation services in Washington State. Here's how they compare.
| Feature | ZenBusiness Best Overall Value | Northwest Registered Agent Best Privacy | Tailor Brands Best for Branding |
|---|---|---|---|
| Starting Price | $0 + state fees | $39 + state fees | $0 + state fees |
| Formation Speed | 1-10 business days | Same-day filing | 2-14 business days |
| Support | Phone, Chat, Email | Lifetime Corporate Guides | Phone, Chat, Email |
| States Covered | 50 states | 50 states | 50 states |
| In Business Since | 2015 | 1998 | 2014 |
| Get Started → | Get Started → | Get Started → |
Frequently Asked Questions
What to Do Next
Once your Washington State LLC is approved, take these steps to set your business up for success.
Get an EIN
Apply for free in about 10 minutes at IRS.gov — required before opening a bank account or hiring anyone.
Open a Business Bank Account
Keep personal and business finances separate from day one. Bring your EIN, Articles of Organization, and a government ID.
Create an Operating Agreement
Even if Washington State does not require one, an operating agreement protects your liability shield and defines how the LLC is managed.
File Your Annual Report
Set a calendar reminder now. Missing your Annual Report deadline can result in late fees or administrative dissolution.
Ready To File?
Start your Washington State LLC with ZenBusiness — guided filing and compliance support included.
About the Author
Legal & Compliance Analyst
Daniel grew up in the shadow of Silicon Valley but chose the legal route over engineering, working as a paralegal for a corporate law firm specializing in mergers and acquisitions. He realized that early-stage founders were constantly making catastrophic legal mistakes because they couldn't afford a $500/hour attorney, prompting his move to B2B media.
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