How to Register a Foreign LLC in Washington
By Edmond Hui · Last updated: October 13, 2026
About this estimate: it adds the state fees described on this page and the cost of a registered agent or registered office service. It may leave out a state tax on the LLC itself. We have not confirmed how Washington applies its recurring fees and taxes to an LLC formed in another state, so check them with the state before you budget.
If your LLC was formed in another state but conducts business in Washington, you must register as a foreign LLC with the Washington Secretary of State. Whether you need to register depends on what Washington law counts as doing business there. Activities such as keeping an office, having employees or owning property in Washington can count. An LLC that does business in Washington without registering can be barred from bringing a lawsuit in Washington courts until it registers, and the state can charge fees and penalties. The Washington foreign LLC registration process involves filing an Application for Foreign Limited Liability Company Registration with a $180 filing fee (plus any back fees the state assesses for business done before registering). Beyond this initial cost, you'll need ongoing compliance including annual reports at $70 per year. Washington also imposes unique tax obligations like the Business & Occupation tax on gross receipts that apply to most business activities regardless of profitability, making proper registration and compliance essential for legal protection and business operations in the Evergreen State.
Before You File: Prerequisites
- Certificate of Good Standing (or Certificate of Status) from your home state, dated within 60 days
- A registered agent with a physical address in Washington
- Your LLC's articles of organization or certificate of formation from the home state
- Principal office address for your LLC (can be located outside Washington)
- Complete information about all LLC members or managers including names and addresses
- Payment method for the $180 filing fee
How to Register a Foreign LLC in Washington: Step-by-Step
- 1
Obtain a Certificate of Good Standing
Contact your home state's Secretary of State office to request a Certificate of Good Standing or Certificate of Status for your LLC. This document must typically be dated within 60 days of your Washington filing date to be accepted. Your home state sets the fee and how long this takes, so order it early and check both with the office that issues it. The certificate verifies that your LLC is validly existing and in good standing in its state of formation.
- 2
Appoint a Registered Agent in Washington
Washington law requires you to designate a registered agent with a physical Washington street address who must be available during normal business hours to receive legal documents. You can't use a P.O. Box for this purpose. You can serve as your own registered agent if you've a Washington address, appoint an individual Washington resident, or hire a professional registered agent service, which charges a yearly fee.
Before you compare paid services: in most states the LLC's owner, or another individual who qualifies, may serve as its registered agent themselves, generally subject to that state's rules on keeping a street address in the state and being available there during normal business hours. A paid service is one way to meet the requirement and not the only one. The Washington registered agent requirements set out what Washington itself asks.
Registered agent services for a foreign LLC in Washington
Affiliate disclosure: Northwest Registered Agent, Bizee, ZenBusiness and LegalZoom pay us a commission if you sign up through our link, at no extra cost to you. We list only the registered agent services we have an affiliate relationship with, so this is not a survey of the whole market.
This list is not scored. The four are listed cheapest annual renewal first, and every claim below is about the services listed here rather than the whole market.
- Northwest Registered Agent$125/yr renewal
Best for: Privacy-focused owners and anyone who just needs an agent, not a formation bundle
- Bizee$149/yr renewal
Best for: A free first year (some visitors are being shown shorter free periods, so confirm at checkout), renewing at $149/yr, if you're comfortable with the BBB caveat
- ZenBusiness$199/yr renewal
Best for: First-time founders forming a new LLC who want phone, email and chat support
- LegalZoom$249/yr renewal
Best for: Complex structures that want attorney consultations, which come with LegalZoom's $299 formation plan (and, in one version of its plans, the $249 plan) rather than this renewal price
Note: Bizee holds a C rating from the BBB and is not accredited. BBB's profile carries a live alert describing a pattern of complaints about unexpected charges, difficulty canceling and filing delays, and Bizee has posted a response to it. We flag this so you can make an informed choice.
Annual renewal is each provider's own standard published rate. Check the current terms at each provider before you buy. The scored ranking, and the formula behind it, is in our full formation services review →
- 3
Check Your LLC Name Availability
Search the Washington Secretary of State's business name database to verify your LLC name is distinguishable from existing entities. Washington requires a distinguishable name that won't cause confusion with other registered businesses. If your exact LLC name is unavailable, you may register under a trade name by filing a Trade Name Registration with the Secretary of State. This allows you to conduct business under an alternate name while maintaining your original LLC identity.
- 4
File the Application for Foreign Limited Liability Company Registration
Complete and submit the Application for Foreign Limited Liability Company Registration through the Washington Secretary of State's online portal at https://www.sos.wa.gov/corps/foreign_corps.aspx or by mail. The form requires your LLC's legal name, principal office address, registered agent information, and details about members or managers. Include the $180 filing fee and attach your Certificate of Good Standing from your home state. Online filing is recommended for faster processing times compared to mail submissions.
- 5
Understand Your Ongoing Tax Obligations
You must register with the Washington State Department of Revenue for applicable state taxes. Most businesses conducting activities in Washington are subject to the Business & Occupation tax on gross receipts, which applies regardless of profitability. Register for this tax within 30 days of beginning business activities in Washington. Additional taxes may apply depending on your business type, including sales tax if you sell goods or certain services to Washington customers.
- 6
File Your Annual Report / Ongoing Compliance
Washington requires foreign LLCs to file an Annual Report by the end of the month in which the business was initially registered, with a $70 filing fee. This deadline is specific to each company based on their registration month, not a universal date. Washington charges an LLC formed in Washington a $25 late fee on this report. We have not confirmed that the same amount applies to an LLC formed in another state, so check before the deadline. The annual report updates your LLC's current information including registered agent, principal office, and member/manager details to maintain good standing in Washington.
Cost Breakdown
Total first-year costs include the $180 Secretary of State filing fee, $70 annual report fee due by the end of your registration month, and a registered agent fee that varies by provider. Professional registered agent services charge a yearly fee that varies by provider. This estimate leaves out Washington's Business and Occupation (B&O) Tax, which this page describes separately. What you would owe depends on your business, so check with the Washington State Department of Revenue before you budget.
Fees
| Fee | Amount | Frequency |
|---|---|---|
| State Foreign Registration Filing Fee | $180 | One-time |
| Registered Agent | $50-300 | Annual |
| First-Year Total (estimated) | $300 to $550 |
About this estimate: it adds the state fees described on this page and the cost of a registered agent or registered office service. It may leave out a state tax on the LLC itself. We have not confirmed how Washington applies its recurring fees and taxes to an LLC formed in another state, so check them with the state before you budget.
Processing Timeline
We have not confirmed a current processing time or expedited service fee for a foreign LLC registration in Washington, so this page does not quote one. Processing times change with the office's workload and with how you file. Check the current time, and whether a faster paid service is offered, with the state filing office before you plan around a date.
Washington-Specific Warnings
Washington imposes a Business & Occupation (B&O) Tax on gross receipts
Unlike most states that tax net income, Washington's Business & Occupation tax applies to gross receipts from business activities, regardless of profitability. This tax is separate from foreign LLC registration and applies to most businesses conducting activities in Washington. Each business classification carries its own fixed rate: 0.471% for retailing, 0.484% for wholesaling and manufacturing, and 1.5%, 1.75% or 2.1% for service and other activities depending on prior-year gross income. You must register with the Department of Revenue within 30 days of beginning business activities and file returns monthly, quarterly, or annually depending on your tax liability amount.
Washington's annual report deadline is tied to your initial registration month
Unlike states with universal annual report deadlines, Washington requires your annual report by the end of the month in which your LLC was initially registered. This means each company has a unique deadline based on their registration date. Missing this company-specific deadline results in the late fee plus the base $70 filing fee. Track your specific deadline carefully and set calendar reminders to avoid penalties and maintain good standing in Washington.
Confirm Washington's processing time before you commit to a date
We have not confirmed a current processing time or expedited service fee for a foreign LLC registration in Washington. If a contract, a lease or a closing depends on your registration, check the current time with the state filing office first, and ask whether a faster paid service is offered and what it costs.
Frequently Asked Questions
Sources
2 documents
Each entry below is a document recorded in our verified Washington sources, and each entry says what the document is. Some statutory text is read from an accurate mirror rather than from the state's own host, and those say so.
- sos.wa.gov/corporations-charities/business-entities/limited-liability-company-llc-professional-llc-pllc-filing-resource-pageWashington Secretary of State: business entity filings
- sos.wa.gov/corporations-charities/frequently-asked-questions-faqs/fee-scheduleexpedited-serviceWashington LLC filing fees
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Edmond Hui · Founder, MyStateLLC
Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.