This guide covers:

How to incorporate in Washington State

Incorporation is the process of forming or converting a business into a corporate entity. The following highlights some of the critical steps you will need to complete when establishing a corporation (C Corp or S Corp) in Washington State.

Step 1: Choose a corporate name

There are various state naming rules and requirements that Washington corporations must follow.

  • Required words. The corporation's name must contain one of the following designations: "Corporation", "Corp.", "Incorporated", "Inc.", "Limited", "Ltd.", "Company", or "Co."
  • Distinguishable. The name must be “distinguishable on the record”, meaning that it cannot be the same as or deceptively similar to the name of another entity that is already registered with the Secretary of State’s office.
  • Restricted words. The following words are prohibited for use in corporate names in Washington: "bank", "banking", "banker", "trust", and "cooperative"; any combination of the words "industrial" and "loan"; any combination of any two or more of the words "building", "savings", "loan", "home", "association", and "society"; and any other words or phrases prohibited by any Washington statute.

Note: There may be different rules for social purpose corporations and nonprofit corporations.

State Name Reservation Service

Step 2: Obtain a Washington registered agent

Every Washington corporation must have a registered agent. A registered agent is a person or entity responsible for receiving and forwarding legal documents and official communications to a corporation.

The Washington registered agent must have a physical address in Washington State. (P.O. boxes are not allowed.) The address of the registered office (the registered agent’s address) and name of the registered agent need to be included in the Articles of Incorporation.

Registered Agent Services

Step 3: Decide on share structure

The number of shares of stock that the corporation is authorized to have must be included in the Articles of Incorporation. The corporation must have at least one authorized share.

Step 4: File Articles of Incorporation with the State of Washington

The Articles of Incorporation is the document that is used to officially create a corporation. In Washington, Articles of Incorporation are filed with the Secretary of State’s office.

Articles of Incorporation requirements for Washington State:

  • United Business Identifier (UBI). A UBI is a nine-digit number issued to individuals and entities doing business in the State of Washington upon successful completion of the Articles of Incorporation filing.
  • Corporate name
  • Period of duration
  • Effective date of filing
  • Registered agent name and address. The agent must also sign a consent to serve as registered agent.
  • Corporate shares. Number and type of shares.
  • Return address for the filing (optional)
  • Incorporator name, address, and signature

Note on initial reports: Corporations (excluding nonprofit corporations) formed in Washington are required to file an initial report within the first 120 days of existence. There is the option to file the report with the Articles of Incorporation with no additional filing fee. 

Step 5: Hold an organizational meeting

After forming a corporation, you must observe certain corporate formalities such as having annual directors’ and shareholders’ meetings and more, to preserve the limited liability a corporation provides its owners.

The purpose of the initial organizational meeting is to complete the organization of the corporation after the Articles of Incorporation is filed. If initial directors are named in the Articles of Incorporations, these directors hold the meeting. If initial directors are not named, the incorporator holds the meeting. A sample of the actions required to complete the organization include -

  • Appointing directors (if initial directors were not named in the Articles of Incorporation)
  • Adopting corporate bylaws
  • Electing officers
  • Issuing stock
  • Selecting a corporate bank
  • Setting the organization’s fiscal year
  • Setting up a corporate records book

Step 6: Prepare corporate bylaws

Corporate bylaws set out the basic rules for how the business and affairs of the corporation will be conducted. This governing document is not filed with the state, but it is a requirement for Washington corporations.

Bylaws generally cover areas of internal management, including the roles of directors and officers and the holding of shareholders’ and directors’ meetings.  Bylaws may contain any provision not inconsistent with law or the Articles of Incorporation.

Step 7: Issue shares of stock

Stock refers to the overall ownership in a corporation, while shares represent units or a percentage of that ownership. This is why the owners of a corporation are referred to as shareholders.

A corporation may issue any amount of shares up to the authorized amount set forth in the Articles of Incorporation. To increase the authorized amount requires an amendment to the Articles.

Step 8: Get an EIN

A federal employer identification number, or EIN, is an IRS-issued identification number for businesses. This number is also commonly referred to as a FEIN or federal tax ID number.  All corporations are required by federal tax law to obtain an EIN.

An EIN is used for tax filings, as well as for other important business activities, such as opening a business bank account, obtaining a loan, or paying invoices. Check out our article on federal EINs for more information.

Step 9: Select a tax election (S corporations)

In order for a corporation to become an S corporation, it will need to meet eligibility requirements and file Form 2553 (Election by a Small Business Corporation) with the IRS.

Note that an S corporation is not a separate business structure, but an IRS tax classification. By default, a corporation is taxed by the IRS as a C corporation.

Read What is an S Corp for information on the difference between taxation under Subchapter S of the Internal Revenue Code and Subchapter C, eligibility requirements for filing, and information on maintaining tax status under Subchapter S.

Step 10: Comply with other tax and regulatory requirements for Washington businesses

Your Washington corporation may be required to complete additional compliance steps in order to legally do business in the state. The following are a few possible requirements:

  • Initial report. Domestic business entities (other than a limited liability partnership or nonprofit corporation) are required to file an initial report with the Secretary of State’s office within the first 120 days of existence. The report may be submitted along with the formation document at no additional fee. Otherwise, the filing fee is $10.
  • State business license. Most businesses will need to obtain a Washington State business license from the Department of Revenue.
  • Occupational licenses. A number of professions and industries require registration with and obtaining licensing from a state agency.
  • Employees. Your corporation will have specific requirements if it has employees, including having a federal EIN, reporting new hires (and re-hired) employees to the Division of Child Support (DCS), and obtaining Workers’ Compensation insurance.
  • Local business licenses and permits. Your Washington corporation may need to obtain a local business license, as well as fulfill other local license and permit requirements.
  • Trade name filing. The corporation will need to register its trade name or “doing business as” name with the Department of Revenue if it plans on conducting business using a name other than the one listed on its Articles of Incorporation.
  • Annual report. Washington corporations are required to file an annual report with the Secretary of State’s office. The report is due by the end of the anniversary month of the corporation’s formation.

Washington State (WA) corporation basics and FAQs

What is the cost to incorporate in Washington

At BizFilings, we clearly outline our fees and the state fees to form a Washington corporation. View our pricing to incorporate as a C corporation or S corporation to see:

  • BizFilings’ package prices. BizFilings offers three incorporation service packages from which you can choose.
  • State fee for standard turn-around. Our pricing clearly shows the state fee to incorporate in Washington with standard turn-around.
  • Expedited turn-around. You will see the BizFilings and state fee, if any, for expedited turn-around.
  • Certified copy. Our pricing also clearly displays the BizFilings and state fee, if any, for issuing a Certified Copy of the Articles of Incorporation.
Incorporate in Washington

Director requirements

The following are Washington’s requirements for directors of corporations:

  • Minimum number. Corporations must have one or more directors.
  • Residence requirements. A director does not have to be a Washington resident.
  • Age requirements. Washington does not have age requirements.
  • Inclusion in the Articles of Incorporation. Director names and addresses may be listed in the Articles of Incorporation.

What is an initial report?

In Washington State, a domestic entity other than a nonprofit corporation or limited liability partnership (LLP) must file an initial report with the Secretary of State’s office within 120 days after it is formed. The report includes the following information

  • Legal business name as recorded with the Secretary of State’s office
  • Unified business identifier (UBI) number assigned to the business registration
  • Registered agent
  • Principal office address (a physical address — no PO boxes or private mail boxes — where the business records are kept)
  • Governors (current individuals or businesses who have authority to make decisions on behalf of the entity)
  • Description of the type of business the entity conducts in Washington State

The state will waive the filing fee if the report is included at the time the business is formed or incorporated.

Does Washington State allow professional corporations?

Washington allows professionals, such as accountants, attorneys, and physicians, to form a professional corporation (PC).

What information is kept in corporate records in Washington?

Washington corporations must keep the following items with their corporate records at the principal office:

  • The Articles of Incorporation, or restated Articles of Incorporation and all amendments, as currently in effect
  • Bylaws or restated bylaws and all amendments to them currently in effect
  • Minutes of all shareholders' meetings, and records of all corporate actions approved by shareholders without a meeting, for the past three years
  • The financial statements described in RCW 23B.16.200(1), for the past three years
  • All written communications to shareholders within the past three years
  • The names and business mailing addresses of its current directors and officers
  • The initial report or most recent annual report delivered to the secretary of state

Does Washington State require an annual report for corporations? [H3]

Foreign and domestic corporations in Washington State are required to file an annual report to keep their unified business identifier (UBI) number active and to remain in good standing. Good standing is required to preserve the privileges of being a corporation, such as limited liability protection for shareholders, and being able to expand into other states.

The filing deadline for the annual report is the last day of the month in which the business was formed. For example, if the incorporation date for a business was on January 15, the annual report filing deadline for the following and subsequent years would be January 31. 

Does Washington State have a corporate income tax?

Washington State does not have personal or corporate income tax. However, individuals or entities that are doing business in Washington may need to pay a business and occupation (B&O) tax and/or public utility tax.

How are S corporations taxed in Washington State? [H3]

In Washington, an S corporation is treated as a regular C corporation for state tax purposes because the state does not recognize the federal S corporation election. A Washington S corporation will only be an S corporation for federal tax purposes. Keep in mind that while Washington does not have personal or corporate income tax, an S Corp may be subject to a gross receipts taxes (such as the business and occupation or B&O tax) and other state or local taxes.  

Does Washington have a business license requirement?

When starting your business, you need to apply for a Washington business license through the Washington Department of Revenue. The BizFilings Business License Application Package can help you stay on top of these requirements.

Additional Washington information

View the following additional resources BizFilings has for forming and maintaining companies in Washington:

Explore BizFilings' services

Select to view detailed information on Incorporation Requirements, or LLC Requirements, by State

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