Registering a Foreign Corporation in Washington

Under chapter 23.95 of the Revised Code of Washington, a corporation formed elsewhere becomes a registered foreign entity once the state files its foreign registration statement. One article of that chapter serves corporations, partnerships, LLCs and nonprofits alike, so the corporation statute, RCW 23B.15.010, just points to it: a foreign corporation cannot transact business here until it registers.

The office is the Division's headquarters in Olympia. Most corporations file online in the Corporations and Charities Filing System (CCFS), though the same form can be mailed to PO Box 40234. If the corporation had no UBI number, the state's business identifier, it gets one when the filing is accepted. The form has no notary block. Whoever signs attests, under penalty of law, that the information is accurate.

RCW 23.95.505(1) ties registration to doing business in Washington. The Secretary of State is candid that it cannot decide for you whether your activity qualifies, and it recommends legal advice because liability, licensing and tax questions all turn on the answer. What the statute offers is RCW 23.95.520, an open-ended roster of things that fall outside the term:

• Litigation or arbitration, including settling a claim or dispute
• Shareholder and director meetings and other internal governance
• Holding accounts at financial institutions
• Running a transfer agent or depository for the corporation's own securities
• Using independent contractors to sell
• Taking orders that only become binding after acceptance elsewhere, so long as the contracts call for no local work beyond delivery and installation
• Borrowing, granting mortgages or liens, and collecting or foreclosing on what secures a debt
• One isolated sale or deal that wraps up within a month, outside any recurring pattern
• Owning, without more, property
• Interstate commerce
• Running an approved branch campus of an out-of-state degree-granting school
• Having a remote worker who resides in Washington

The final item is new. It took effect on June 11, 2026. A person who merely owns a piece of, or governs, an entity that does business here is not treated as doing business personally. The section also stays silent on service of process, taxes and other regulation, which other laws answer. A Washington office, a storefront or steady local operations remain strong signals toward registering.

Registering a foreign corporation costs $180 in state fees. An online submission adds a $20 processing fee set by rule, while a mailed filing pays only the filing fee, with a check or money order written to "Secretary of State." Expedited handling is an extra $100.

The statement, executed by the corporation, gives:

• The name exactly as shown on the certificate of existence
• An alternate Washington name, when the real name is taken or lacks a required word
• Home jurisdiction, formation date and duration
• A principal office with a physical address anywhere in the world, never a PO box or private mailbox, plus an email address
• Governors and officers, with the rule that a business cannot govern itself
• The nature of the corporation's Washington activity and the date it started or will start
• The Washington registered agent and that agent's signed consent
• A start date for the registration, which can be delayed by as many as 90 days

A professional service corporation uses the same form. Filing fees are not refundable, and every filing is a public record.

Washington asks for a good standing style document, not a copy of the articles. RCW 23.95.510(2) requires an existence certificate, or a record of like effect, issued by the home filing officer in the sixty days preceding submission and duly authenticated. The paper form and the online screens say the same, and a statement missing the certificate comes back for correction.

That sixty-day clock makes timing matter. A certificate ordered a quarter ago, or reused from another state's filing, may have aged out. Request yours from the home state shortly before you plan to submit. Online filers upload an image, and rule WAC 434-112-070 adds a duty to keep the original, show it on request, and hand it to the Division or the Attorney General within ten business days if asked. Whatever the home state charges for the certificate is separate from Washington's fee.

Under RCW 23.95.305 a business corporation's name carries a designator: Corp., Inc., Co., Ltd., or the corresponding full word. If your name lacks one, or is unavailable here, you do business under an alternate name approved under RCW 23.95.525, listed as the DBA name on the statement.

Who can serve

A registered foreign corporation designates a Washington registered agent and keeps one in place (RCW 23.95.405). Two kinds exist. A commercial registered agent is a person or business listed with the Secretary of State for that purpose. A non-commercial agent is any person or business with a Washington address that agrees to take legal papers, or whoever holds a named office in the corporation. The statute forbids appointing anyone without a signed consent.

The address must be a physical Washington street address. The Secretary of State's guidance describes the registered office as where the agent should be found during business hours, and it will not take a PO box. An agent resigns by statement, effective 31 days after filing. Changing agents or resigning costs nothing.

An annual report is owed every year by month's end in the month of registration, and the state accepts it as much as 180 days ahead. It costs $70, and filing after the deadline brings a $25 delinquent fee. The report lists the name and jurisdiction, agent, principal office, governors and the nature of the business, along with disclosures about transfers of controlling interest and interests in real property.

Unpaid fees, a missed report or no agent can end a registration. Notice goes to the registered agent, and a problem still uncured sixty days after that notice takes effect leads to termination. Returning means a fresh registration statement, with back report fees on top. Changes to the corporation's name, jurisdiction, principal office or agent information are reported promptly by amendment, which costs $30.

Leaving Washington means filing a Statement of Withdrawal, which is free. A foreign corporation attaches a copy of a revenue clearance certificate issued under RCW 82.32.260. Separately, a Department of Revenue business license generally follows registration, and which taxes apply depends on the corporation's activity.

RCW 23.95.505 lays out the cost. A corporation doing business here cannot appear as plaintiff in a Washington court until it registers and clears the fees and penalties from its unregistered years. The same goes for continuing a suit already underway. The bar passes to its successor and to anyone who is assigned a claim from the business, and a judge can hold a case in abeyance while deciding if registration was needed.

Money is owed as well. The state bills the fees that registration and annual reports would have generated, plus the statutory penalties on those fees. The statute sets no flat fine and no daily charge. Some things survive. Contracts and corporate acts remain valid, the counterparty can still sue on a contract, the corporation can answer a lawsuit, and owners do not lose limited liability merely because of the lapse. Under RCW 23.95.555 the Attorney General may go to court for an injunction against doing business in violation of the chapter.

When a corporation formed in another state needs to be registered here, Mainstay Filing's foreign qualification service drafts the Washington statement, submits it to the state, and attaches a Washington registered agent whose first year is included; renewals cost $149 a year. The home-state certificate is yours to obtain, because Mainstay Filing does not order them, and the 60-day window is worth watching as you send it over. Annual reports and tax returns remain with the corporation.

You can see the day's checkout lines and total on the Washington foreign qualification page. Already registered and only need an agent? See the Washington registered agent page. Mainstay Filing handles paperwork and acts as your agent; a borderline activity needs legal judgment from a Washington lawyer, and Mainstay Filing, which is not a law firm, cannot supply that opinion.