How to Form a Corporation in Washington: The Complete 2026 Guide

Forming a corporation in Washington means filing Articles of Incorporation with the Washington Secretary of State through the CCFS portal, paying the $180 filing fee (plus a small online processing fee), seating a board of at least 1 director, and registering for a state Business License with the Department of Revenue before you operate. Washington has no corporate income tax and no franchise tax — the recurring obligations are a $70 annual report and the gross-receipts Business and Occupation (B&O) tax. This guide walks through every step and cost of forming a Washington C-Corporation, with filing available through LLC Attorney starting at $49.

C-Corp vs LLC in Washington

Most first-time business owners in Washington start with an LLC. A Washington corporation earns its keep in narrower cases — chiefly when you plan to raise priced equity, grant stock options, or take on institutional investors who expect a C-Corp cap table — where the corporate structure is a requirement rather than a preference.

Choose a Washington corporation when:

• You plan to raise venture capital or institutional investment. VC firms, angels, and most institutional investors require a C-Corp structure before they write a check. Preferred stock, convertible notes, SAFEs, and board governance by class are native to corporations, not LLCs.
• You want to issue stock options to employees (ISOs). Corporations issue stock; LLCs issue membership interests. ISO and NSO option plans are available to corporations but not to LLCs.
• You expect to eventually go public or sell to a public company. Public markets operate on corporate stock mechanics.
• You are in a regulated industry where corporate structure is required or expected by licensing boards, government contracts, or institutional counterparties.

Stick with an LLC when:

• You are a small business with one or a few owners who will not need institutional investment.
• Pass-through taxation without payroll complexity is the priority.
• You do not need stock option plans or institutional investment mechanics.

Why and when to incorporate in Delaware vs your home state

Delaware is the default for startups on a venture track. Institutional investors expect it, term sheets assume it, and the Court of Chancery resolves corporate disputes faster than any general trial court. If you are raising a priced round or structuring for QSBS eligibility, incorporate in Delaware.

If you are not raising outside capital, Washington is usually the better choice. A Delaware corporation operating in Washington still has to register as a foreign corporation there, pay Washington fees, and file a Delaware franchise tax return each March 1. That is duplicate overhead with no benefit for a business that will not seek institutional investment.

What's Unique About Corporations in Washington?

Washington is distinctive among corporation states because it funds itself through a gross-receipts Business and Occupation (B&O) tax instead of a corporate income tax or a franchise tax. That changes the math of incorporating here: there is no annual minimum tax keyed to authorized shares or net income, but the corporation owes B&O tax on revenue from the first dollar, profitable or not. The state is also a major hub for technology, aerospace, and cloud-infrastructure companies, and Washington corporations must obtain a state Business License and UBI number before doing business — a registration step that does not exist in most states.

Key Washington-specific requirements:

• Articles of Incorporation (not "Articles of Organization" — that is the LLC filing document)
• Board of 1 or more directors (RCW 23B.08.030); no residency or citizenship requirement
• No corporate income or franchise tax; instead the B&O tax applies to gross receipts at 0.138% to 1.75% by classification, owed even in unprofitable years, plus a $70 annual report
• Annual report ($70) is due in the incorporation anniversary month, and an initial report is due within 120 days of formation under SHB 2248
• State Business License and UBI registration through the Department of Revenue, required before operating and used to activate B&O and sales tax accounts

Selecting a Name for Your Washington Corporation

Your corporation's name must comply with Washington naming requirements:

• Must include "Corporation," "Incorporated," "Inc.," "Corp.," or another Washington-approved designator (RCW 23B.04.010)
• Must be distinguishable from all existing Washington entities in the Washington Corporations and Charities Filing System (CCFS)
• the name must contain Corporation, Incorporated, Company, or Limited, or an abbreviation such as Corp., Inc., Co., or Ltd., and must be distinguishable from every entity already on file in CCFS; Washington will not approve a name that implies a purpose the corporation is not authorized to pursue
• Names implying government affiliation or banking activity are restricted

Search the Washington Corporations and Charities Filing System (CCFS) at ccfs.sos.wa.gov before filing. Your name search is not a reservation — the name can be registered by another filer while you prepare your Articles of Incorporation.

Name reservation: file a name reservation with the Washington Secretary of State, Corporations & Charities Division, $30 fee, holding the name for 180 days. Recommended if your paperwork takes more than a few days to prepare.

Directors, Officers, and Shareholders in a Washington Corporation

A Washington corporation has three distinct roles:

Shareholders own the corporation. They hold stock and vote on major decisions — electing directors, approving mergers, authorizing major asset sales. Shareholders do not manage day-to-day operations.

Directors govern the corporation through a Board of Directors. They set strategic direction, authorize major transactions, and oversee management. Washington's director requirements: Washington requires a board of one or more directors (RCW 23B.08.030); the exact number is fixed in the Articles or bylaws, or by a method they specify. Directors need not be Washington residents or U.S. citizens, and there is no statutory minimum age beyond the capacity to serve. The Articles of Incorporation do not have to name the initial directors when the incorporator appoints them in the organizational consent.

Officers (CEO, CFO, Secretary, etc.) manage day-to-day operations. Officers are appointed by the Board of Directors. Washington requires the officers described in its bylaws or appointed by the board, with one officer designated to keep minutes and authenticate records; one person may hold every office (RCW 23B.08.400). One individual may be the sole director and simultaneously hold every officer role, since RCW 23B.08.400 expressly allows one person to occupy multiple offices.

Designating a Registered Agent

Every Washington corporation must designate a Registered Agent — a person or entity with a physical Washington street address who receives legal notices, lawsuits, and official state correspondence on behalf of your corporation.

Every Washington corporation must continuously maintain a Registered Agent with a physical street address in Washington (RCW 23.95.415) — a P.O. box or private mailbox does not qualify. The agent accepts service of process and official Secretary of State mail during business hours, and any change of agent requires the new agent's consent in a record. If the agent resigns or becomes unreachable and the corporation does not update CCFS, the state can administratively dissolve the entity.

If the Washington Secretary of State, Corporations & Charities Division cannot deliver legal notices to your Registered Agent, Washington can administratively administratively dissolve your corporation. LLC Attorney's Washington Registered Agent service is $125/year.

Washington Corporation Costs and Compliance

How to Form a Corporation in Washington

If You Do It Yourself

If LLC Attorney Does It for You

1. Submit your information at llcattorney.com — corporate name, director structure, authorized shares, Registered Agent preference, fiscal year, and target formation date. No forms to find or download.
2. LLC Attorney files your Articles of Incorporation with the Washington Secretary of State, Corporations & Charities Division, drafts your bylaws, handles your organizational meeting consent, issues your stock ledger documentation, applies for your EIN, and covers same-day filing if needed. Your Registered Agent designation and initial Annual Report are included.
3. Receive your approved Articles of Incorporation, bylaws, organizational consent, stock documentation, and EIN confirmation through your LLC Attorney client portal. Annual compliance reminders are included so you never miss a online Annual Report (CCFS) deadline or annual tax payment.

S-Corp Election for Washington Corporations — What You Need to Know

An S-Corp election is not a separate entity — it is a federal tax election made by an existing corporation. Your Washington corporation remains a Washington corporation; you are only changing how the IRS taxes it.

The S-Corp tax advantage: a C-Corp pays 21% federal corporate income tax on net income, and shareholders pay income tax again on dividends. An S-Corp passes income directly to shareholders' personal returns, skipping the corporate-level tax. For owner-operated businesses with consistent profitability above roughly $40,000/year, the S-Corp election typically produces material tax savings.

S-Corp payroll requirement: if you elect S-Corp status and work in the business, you must pay yourself a "reasonable salary" subject to payroll taxes. The savings come from income above that salary, which passes through without payroll tax. Skip the salary and the IRS can reclassify your distributions as wages and assess back payroll taxes plus penalties.

Eligibility requirements:

• 100 or fewer shareholders
• All shareholders must be U.S. citizens or permanent residents
• Only one class of stock (identical distribution and liquidation rights)
• No institutional shareholders, partnerships, or non-resident alien shareholders

Washington treatment of S-Corps: Washington does not have a personal or corporate income tax, so the federal S-Corp election produces none of the state income-tax savings it does in income-tax states — and Washington does not separately recognize the S election at the state level. What does not change is the B&O tax: an S-Corp owes B&O tax on gross receipts exactly as a C-Corp does. The S election is therefore a federal payroll-tax planning decision for profitable, closely held Washington corporations, not a state-tax move, and it carries the usual eligibility limits (100 or fewer U.S.-individual shareholders and a single class of stock).

Filing deadline: IRS Form 2553 must be filed within 75 days of formation, or by March 15 of the tax year for which you want the election effective. Late elections are sometimes accepted with a written explanation of reasonable cause.

When Should You Consult an Attorney for Your Washington Corporation?

LLC Attorney provides on-demand attorney consultations for a flat rate per 30-minute session — no retainer required. Corporation formation benefits from attorney guidance more than most entity types because of share structure, bylaw complexity, and S-Corp election timing. Common scenarios:

• Multiple founders or investors: share structure decisions made at formation (authorized shares, classes, par value) affect every future financing round and exit. A misstructured cap table is expensive to unwind.
• S-Corp election analysis: whether to elect depends on projected net income, payroll requirements, and state-level S-Corp recognition. The payroll requirement catches founders off guard.
• High-liability industry: regulated industries may have specific corporate structure requirements from licensing boards or insurance carriers.
• Raising capital: if you plan to raise institutional capital, your share structure, option pool, and Delaware vs. home-state decision should be reviewed before you file.
• Washington-specific wrinkles: Washington may have corporate law provisions a generic national template does not cover correctly.

Is Washington a State Where Legal or Tax Advice Matters More for Corporations?

Washington's gross-receipts B&O tax is where corporations most often get the structure wrong: the rate depends on how each stream of revenue is classified, and a corporation with mixed retailing, wholesaling, and service income can be taxed under several classifications at once. An attorney or experienced advisor should confirm your B&O classifications, set up your Department of Revenue registration correctly, and — for profitable closely held corporations — model whether a federal S election lowers your overall tax before you commit to the C-Corp default.

What You Actually Get When You Incorporate in Washington with LLC Attorney

A Washington corporation that exists only as an approved CCFS filing is not a working corporation. The state filing creates the entity, but it does not produce the bylaws, board consents, stock ledger, or Department of Revenue registration that let the corporation operate, bank, and keep its liability shield. An advertised "$0 filing" that skips those is unfinished — and in Washington, an unregistered corporation cannot even legally transact until its Business License and UBI are active.

Included with LLC Attorney corporation formation, starting at $180:

• Same-day or 24-hour Washington filing at no markup on the state fee. Most services charge extra to expedite.
• Attorney-drafted bylaws, initial board consent, and organizational minutes — customized, not auto-generated templates.
• Initial stock issuance and cap-table setup, so your ownership is documented correctly from day one.
• Federal EIN, obtained for you.
• Washington Registered Agent service at $125/year, included to keep you in good standing.
• S-Corp election guidance when pass-through tax treatment is the right call for your situation.
• Access to attorney-trained Business Success Advisors at no charge, plus optional flat-fee attorney consultations (no retainer).

Because Washington's cost is driven by gross-receipts B&O tax rather than an annual income or franchise tax, getting the corporation set up correctly — clean bylaws, a documented cap table, and accurate Department of Revenue registration — is exactly what is included here.

Starting Your Washington Corporation with LLC Attorney

Washington's corporate formation requirements look simple but hinge on the B&O tax — the B&O gross-receipts tax classification, the state Business License and UBI registration, and the choice between C-Corp and S-Corp treatment. Getting your directors, share structure, bylaws, and initial compliance filings right at formation prevents expensive corrections later.

The service handles Washington corporation formation starting at $49. Same-day filing is available at no markup on state fees. On-demand attorney consultations in 30-minute increments — no retainer — cover bylaws drafting, S-Corp election analysis, Washington B&O tax classification and Department of Revenue registration, and annual tax planning. See our full pricing for all service tiers.

Frequently Asked Questions

How long does it take to form a corporation in Washington?

Standard Washington corporate filings submitted online through CCFS process in roughly 2 to 5 business days. Paper Articles mailed to Olympia can take several weeks because they are queued behind online submissions. Washington offers a single expedited tier (about $100) that moves a filing ahead of the standard queue. LLC Attorney files online and tracks your formation date so time-sensitive incorporations land on schedule.

What is the difference between a C-Corp and an S-Corp in Washington?

A C-Corp and an S-Corp are the same Washington corporation — the difference is federal tax treatment only. A C-Corp pays corporate income tax at the entity level (21% federal rate), and shareholders pay personal income tax again on dividends. An S-Corp elects pass-through taxation — income flows to shareholders' personal returns without corporate-level tax. The election is made with the IRS via Form 2553 and has no impact on your Washington formation documents. Because Washington has no income tax, an S-Corp election here is about federal self-employment tax, not state savings, and venture-track corporations that need multiple share classes or institutional investors cannot use it.

Can a single person form a corporation in Washington?

Yes. Washington allows a single person to incorporate and run a corporation as the sole director and sole shareholder while holding every officer position at once (RCW 23B.08.400 permits one individual to hold multiple offices). You still must observe corporate formalities — adopt bylaws, record an organizational consent, issue yourself stock, and keep corporate and personal finances strictly separate — to keep the liability shield intact, and you must register for a state Business License before operating.

What taxes does a Washington corporation have to pay?

Washington imposes no corporate income tax and no franchise tax, so a Washington C-Corp owes no entity-level income tax to the state. It does owe the Business and Occupation (B&O) tax on gross receipts at 0.138% to 1.75% depending on classification, payable even in loss years, and most corporations also collect and remit Washington sales tax. At the federal level the C-Corp pays the 21% corporate income tax unless it elects S-Corp treatment. Because Washington has no income tax, that federal election changes federal taxation but not the corporation's Washington B&O obligation.

What is the Annual Report and when is it due?

Washington corporations file an Annual Report through CCFS each year by the last day of the month in which they were incorporated. The fee is $70 for profit corporations (WAC 434-112-085). Separately, SHB 2248 now requires an initial report within 120 days of formation, filed for a nominal fee. Missing the annual deadline adds a $25 delinquency fee, and prolonged failure leads the Secretary of State to administratively dissolve the corporation, after which it loses the right to sue or transact until reinstated.

Does a Washington corporation need bylaws?

Washington does not require corporations to file bylaws with the Secretary of State. However, bylaws are a legal requirement for corporate governance — they define how your board operates, how shareholder meetings work, how officers are appointed, and how major decisions are made. A corporation without bylaws is technically non-compliant and lacks the foundational document that governs all major corporate decisions. Every bank, investor, and serious counterparty will request your bylaws.

What happens if I miss the annual tax deadline?

Washington has no franchise tax, so there is no franchise-tax penalty. The comparable risk is the annual report: missing the anniversary-month deadline adds a $25 delinquency fee, and continued failure leads the Secretary of State to administratively dissolve the corporation. Separately, the Department of Revenue assesses penalties and interest on late or unfiled B&O tax returns, which accrue independently of your Secretary of State standing.

Can I change my Washington corporation to an LLC later?

Yes. A Washington corporation can convert to an LLC by filing Articles of Conversion together with a Certificate of Formation through CCFS. Conversion is a taxable event for federal purposes and can trigger gain recognition, so model the federal consequences with a CPA first — Washington itself imposes no income tax on the conversion, but the federal bill can be significant. An attorney consultation can map whether converting or dissolving and re-forming is cleaner for your assets and cap table.

What happens if my Registered Agent cannot be reached?

If Washington is unable to deliver legal notices to your Registered Agent, the state can administratively administratively dissolve your corporation. This can happen without direct notice to you. A professional Registered Agent service ensures a qualified person is available during business hours at a physical Washington address to receive any legal documents on your behalf.

Learn More About Washington

• Washington LLC Formation
• Washington Registered Agent
• Washington EIN Number
• Washington Anonymous LLC