Form a Corporation in Connecticut

Everything you need to know about forming a Corporation in Connecticut. Filing fees, requirements, timeline, and step-by-step guidance.

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$250
Filing Fee
5-7 business days
Processing Time
Required
Registered Agent

How to File

1

Choose a Corporate Name

Select a unique name that includes a required corporate designator such as 'Corporation,' 'Incorporated,' 'Company,' 'Corp.,' 'Inc.,' or 'Co.' Verify name availability using the Connecticut Secretary of the State's online business name search tool at ct.gov.

30 minutes

2

Reserve Your Corporate Name (Optional)

If you are not ready to file immediately, you may reserve your chosen corporate name for 120 days by filing a Name Reservation application with the Connecticut Secretary of the State for a $60 fee.

15 minutes

3

Appoint a Registered Agent

Designate a registered agent with a physical street address in Connecticut who is authorized to receive legal documents and official correspondence on behalf of the corporation. The agent may be an individual resident or a registered commercial agent service.

1-2 hours

4

File the Certificate of Incorporation

Prepare and file the Certificate of Incorporation with the Connecticut Secretary of the State, either online via the Connecticut Business One Stop (CBOS) portal or by mail. The document must include the corporation's name, registered agent information, number of authorized shares, and incorporator details.

1-2 hours

What's Next After Filing

Once your Corporation is officially formed, you'll want to complete these important steps:

  • Create Corporate BylawsDraft internal bylaws that govern the corporation's operations, including rules for shareholder meetings, board of directors responsibilities, officer roles, and voting procedures. While not filed with the state, bylaws are legally required and should be adopted at the organizational meeting.
  • Hold Organizational Meeting and Issue StockConduct the initial organizational meeting of the board of directors to adopt bylaws, elect officers, authorize issuance of shares, and handle other initial corporate business. Issue stock certificates to shareholders and maintain a stock ledger.
  • Obtain EIN and Fulfill Tax & Licensing RequirementsApply for a Federal Employer Identification Number (EIN) from the IRS, register with the Connecticut Department of Revenue Services for state tax obligations, and obtain any required local or state business licenses or permits applicable to your industry.

Advantages

  • Strong liability protection that shields shareholders' personal assets from corporate debts and legal judgments
  • Ability to raise capital through the sale of stock and attract investors, including venture capital and public markets via potential IPO
  • Perpetual existence — the corporation continues regardless of changes in ownership or the death of shareholders
  • Potential tax advantages including deductible employee benefits, and eligibility to elect S-Corp status with the IRS to avoid double taxation

Considerations

  • Potential for double taxation — C-Corporations pay corporate income tax and shareholders pay personal income tax on dividends
  • More complex and costly to form and maintain than LLCs or partnerships, with strict governance requirements including bylaws, board meetings, and minutes
  • Greater regulatory and administrative burden, including mandatory annual reports, record-keeping, and compliance with Connecticut corporate statutes

Annual Obligations

Annual Report Fee:$150
Report Due:March 31
Connecticut corporations must file an Annual Report with the Secretary of the State by March 31 each year. The filing fee is $150 and can be completed online through the CBOS portal. Connecticut does not impose a separate franchise tax on corporations, but corporations are subject to the Connecticut Corporation Business Tax administered by the Department of Revenue Services. Failure to file the annual report can result in administrative dissolution.
Last verified: July 2026Source

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