Connecticut Corporation Requirements

Each state has different requirements for forming a corporation. Whether you are starting a business or incorporating a business already in existence, you’ll want to understand state requirements for Connecticut incorporation.

Cost to incorporate in Connecticut

At BizFilings, we clearly outline our fees and the state fees to form a Connecticut corporation. View our pricing to incorporate as a C corporation or S corporation to plainly 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 Connecticut with standard turn-around.
  • Expedited turn-around. You will see the BizFilings and state fee, if any, for expedited turn-around.
  • 48-hour turn-around. Connecticut has a 48-hour filing option, which is outlined in our pricing.
  • Certified copy. Our pricing also clearly displays the BizFilings and state fee, if any, for issuing a Certified Copy of the Certificate of Incorporation.

Incorporate in Connecticut

Corporate name

The name of the corporation must be in English letters or numbers. It must contain one of the following words: "Corporation," "Company," "Incorporated," "Limited" or "Societa per Azioni" or it must contain the abbreviation "Corp.," "Inc.," "Co.," "Ltd." or "S.p.A." It may not imply it is organized for any purpose not permitted in its Certificate of Incorporation. The name must be distinguishable from the name of a domestic corporation; a reserved or registered corporate name; the fictitious name of a foreign corporation; the name of a nonprofit corporation; the name of any domestic or foreign non-stock corporation; or other business entities filed with the state.

Director information

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

  • Minimum number. Corporations must have one or more directors.
  • Residence requirements. Connecticut requires directors to have a physical address (no post office boxes).
  • Age requirements. Connecticut does not have age requirements.
  • Inclusion in the Certificate of Incorporation. Director names and addresses are not required to be listed in the Certificate of Incorporation.

Requirements for the Certificate of Incorporation

The document required to form a corporation in Connecticut is called the Certificate of Incorporation. The information required in the formation document varies by state. Connecticut's requirements include:

  • Officers. Officer names and addresses are not required to be listed in the Certificate of Incorporation.
  • Stock. Authorized shares and par value must be listed in the Certificate of Incorporation. An increase in the number of shares or par value can affect initial filing fees.
  • Registered agent. Corporations must list the name and address of a registered agent with a physical address (no post office boxes) in Connecticut. The registered agent must be available during normal business hours to accept important legal and tax documents for the business.
Connecticut Registered Agent Service

Other filings required at time of incorporation

Some states require additional filings or steps at the time of incorporation, such as a county level filing, publishing notice of the incorporation in a local newspaper or an initial report filing. Connecticut requires the following:

  • Initial report. Connecticut requires corporations to file an initial report with the state within 30 days of the date of the corporation’s organizational meeting.

Professional services businesses

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

After forming a corporation, you must undertake certain steps on an ongoing basis to keep your business in compliance. These steps are also important in preserving the limited liability a corporation provides its owners. This guide outlines the ongoing requirements for Connecticut corporations.

Corporate records

Connecticut corporations must keep the following items with their corporate records at the principal place of business:

  • The Certificate of Incorporation and bylaws and all amendments to both
  • Minutes from all meetings of directors and shareholders
  • A record of actions taken by shareholder or directors without a meeting
  • A record of all actions taken by a committee of the board of directors in place of the full board of directors
  • Resolutions adopted by the directors creating one or more classes or series of shares and fixing their relative rights, preferences and limitations
  • A record of shareholders, including their names and addresses, listed alphabetically by class of stock
  • All written communications to shareholders within the past three years, including financial statements
  • A list of the names and business addresses of current directors and officers
  • The corporation’s most recent annual report

Corporate taxes and fees

The following are taxation requirements and ongoing fees in Connecticut:

  • Annual report and franchise tax. Connecticut requires corporations to file an annual report on or before the last day of the incorporation anniversary month. The fee for the annual report is $150. Connecticut also has a corporation franchise tax that is due at the time of incorporation and when a corporation’s authorized shares are increased via amendment, merger, etc. The franchise tax fee is calculated on the number of authorized shares, and there is a minimum fee of $150.
  • Taxes. For complete details on state taxes for Connecticut corporations, visit Business Owner's Toolkit or the State of Connecticut.
  • Federal tax identification number (EIN). An EIN is required for corporations that will have employees. Additionally, most banks require an EIN in order to open a business bank account.
  • State tax identification number. Connecticut does not require a state tax identification number.

Business licenses

Business licenses and/or permits are required for most businesses. The BizFilings Business License Application Package can help you stay on top of these requirements.

S corporation election

Connecticut recognizes the federal S corporation election and does not require a state-level S corporation election.

Additional Connecticut information

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

State Guides


The state in which you form your company can provide certain benefits.

Please select both a state and a topic.

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