Form Your Connecticut C Corporation
Build the investor-ready structure venture capital requires — issue stock, set up your cap table, and incorporate in the heart of the Northeast corridor
Filed in Connecticut
The Constitution State · CT
- State filing fee$250
- Processing time3-5 business days (online)
- Our formation feeFree (you pay $100 if you choose a paid plan)
- Annual report$150/year — due Annually, by anniversary month
- State tax rate7.5% corporate income tax
- Expedited option24 hours (+$50)
Form your Connecticut C-Corp — pay only the state filing fee, nothing more.
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Everything to launch your Connecticut C-Corp
Free formation means you pay only the $250 state filing fee. All core services are included at no extra charge.
Certificate of Incorporation filing
We prepare and submit your Certificate of Incorporation to the Connecticut Secretary of State.
Registered agent
Required in Connecticut — we act as your agent for the first year.
EIN from the IRS
Your federal Tax ID — required to open a US business bank account and file taxes.
Corporate bylaws
Professionally drafted corporate bylaws — defines ownership, voting, and profit splits.
Benefits of forming an C-Corp in Connecticut
Connecticut sits in the heart of the Northeast corridor with direct access to the New York City and Boston capital markets, making it a strong base for a C Corporation that plans to raise from venture and institutional investors. The state's deep financial services, insurance, and aerospace ecosystem gives founders proximity to professional investors, board-ready talent, and the legal and accounting infrastructure that priced rounds demand.
The structure venture capitalists and institutional investors require to write a check
Issue multiple classes of stock and build a clean cap table for fundraising
Perpetual existence — the company survives changes in ownership and management
QSBS / Section 1202 gain-exclusion benefits may apply to qualifying C Corp shares
Strategic Northeast location between New York City and Boston for finance and tech talent
Strong financial services, insurance, and aerospace ecosystem with deep institutional capital
Key features of a Connecticut C-Corp
- Files a Certificate of Incorporation, not a Certificate of Organization
- Issues stock and supports a cap table for priced rounds and SAFEs
- Governed by a board of directors and corporate bylaws
- Perpetual existence independent of its shareholders
- Online filing available through the Connecticut Secretary of State at business.ct.gov
Major industries in Connecticut
Form your Connecticut C-Corp in 6 steps
We handle every step while you stay in the loop. Processing takes 3-5 business days (online).
- 01
Choose Your Corporation Name
Your name must include a corporate designator such as 'Corporation,' 'Incorporated,' 'Company,' 'Limited,' or an abbreviation (Corp., Inc., Co., Ltd.). Search the Connecticut Secretary of State's database to confirm availability.
- 02
Appoint a Registered Agent
Connecticut requires a registered agent (statutory agent) with a physical address in the state to receive legal and tax documents on the corporation's behalf.
- 03
File the Certificate of Incorporation
Submit your Certificate of Incorporation to the Connecticut Secretary of State. The state filing fee is $250, and it must authorize the number of shares the corporation may issue. Online filing is available at business.ct.gov.
- 04
Adopt Bylaws and Appoint Directors
Hold an organizational meeting to adopt corporate bylaws, appoint your board of directors, and approve the initial issuance of stock to founders.
- 05
Obtain an EIN and Issue Stock
Apply for a free EIN from the IRS, then issue founder stock and record it on your cap table. Founders receiving restricted stock should consider filing an 83(b) election with the IRS within 30 days.
- 06
File the Annual Report
Connecticut corporations file an annual report online at business.ct.gov each year. The fee is $150, and failure to file can lead to administrative dissolution.
Connecticut C-Corp costs at a glance
Kicker formation is free — you pay only the required state fees. No hidden charges.
Connecticut C-Corp requirements checklist
Everything you need to form and maintain a Connecticut C-Corp in 2026.
- File the Certificate of Incorporation with the Connecticut Secretary of State ($250)
- Authorize a number of shares of stock in the Certificate of Incorporation
- Appoint a statutory (registered) agent with a physical Connecticut address
- Appoint a board of directors and adopt corporate bylaws
- Obtain an EIN from the IRS
- File an annual report every year ($150)
- Register for Connecticut taxes and file federal corporate income tax (Form 1120)
Filing information
- Formation document
- Certificate of Incorporation
- Filing agency
- Connecticut Secretary of State
- Registered agent
- Required
- Corporate bylaws
- Recommended
- EIN
- Required
- Name reservation fee
- $60 (120 days)
Free formation — pay only the state fee
Kicker formation is free. You pay the $250 Connecticut state filing fee and nothing more for the Starter plan. Optional plans add registered agent, EIN, corporate bylaws, and compliance.
Starter
- Certificate of Incorporation filing
- Name availability check
- Digital document delivery
- Formation status tracking
Booster
- Everything in Starter
- Registered agent (required in Connecticut)
- EIN / Federal Tax ID
- Expedited processing (1–2 days)
- Corporate bylaws
- Priority support
- Kicker Voice — 3-day free trial
- Kicker Pay — free for 15 days
Founder
- Everything in Booster
- Business mailing address
- Bookkeeping — 3 months free
- Dedicated account manager
- Rush processing
- Kicker Voice — 6-day free trial
- Kicker Pay — free for 30 days
Kicker
- Everything in Founder
- ITIN filing & preparation
- Same-day priority processing
- 2nd year annual filing $0
- Kicker Voice 12-day + Kicker Pay 60 days free
Compare all plans on our pricing page.
Connecticut C-Corp questions, answered
Common questions about forming an C-Corp in Connecticut. Can't find an answer? Talk to our team.
How much does it cost to form a C Corporation in Connecticut?
The Connecticut state filing fee for the Certificate of Incorporation is $250. After formation, corporations file an annual report each year for $150.
How long does it take to incorporate in Connecticut?
Standard online processing through the Connecticut Secretary of State takes about 3-5 business days. Filing online at business.ct.gov is typically faster than paper filing.
What document do I file to form a C Corp in Connecticut?
You file a Certificate of Incorporation with the Connecticut Secretary of State. Unlike an LLC's Certificate of Organization, it must authorize the number of shares the corporation can issue, which forms the basis of your cap table.
How is a C Corporation taxed?
A C Corp pays the flat 21% federal corporate income tax on its profits, plus Connecticut's 7.5% state corporate income tax. Profits distributed as dividends are taxed again at the shareholder level — the 'double taxation' that distinguishes C Corps from pass-through entities. Connecticut has no franchise tax, and the state sales tax is 6.35%.
Why do investors prefer a C Corporation?
Venture capitalists and institutional investors almost always require a C Corp because it can issue preferred stock, support a clean cap table, and accommodate priced rounds and SAFEs. Qualified Small Business Stock (QSBS) benefits under Section 1202 may also apply to eligible C Corp shares.
What is an 83(b) election and when do I file it?
If founders receive restricted stock that vests over time, an 83(b) election lets them be taxed on the value at grant rather than as it vests. You must file it with the IRS within 30 days of receiving the stock — the deadline is strict and cannot be extended.
Does my Connecticut C Corp have to file a BOI report?
Under FinCEN's March 2025 interim final rule, U.S. domestic entities and U.S. persons are exempt from Beneficial Ownership Information (BOI) reporting. Only entities formed abroad and registered to do business in a U.S. state still file.
Can I file my Connecticut Certificate of Incorporation online?
Yes. You can file the Certificate of Incorporation online through the Connecticut Secretary of State at business.ct.gov, which is generally the fastest route to a 3-5 business day turnaround.
Connecticut government filing resources
Filing fees for common C-Corp services
Official Connecticut state charges for the filings you may need after formation — our service fee is separate, and we confirm the current amount before filing.
Fee $60, same across all entity types (stock corp, nonstock corp, LLC, LP, LLP, statutory trust).
$55.00 per document for a certified copy, charged per document regardless of number of pages (statute: $40 for the copy + $15 for the certification/seal).
$40.00 per document for a regular apostille/authentication.
$100 non-refundable registration fee confirmed on the CT DRS Sales and Use Tax Information page.
Learn moreFee $100 to amend the Certificate of Incorporation for a stock (for-profit) corporation.
Learn more$50 filing fee for stock corporations (Form BUS-009 states 'Filing Fee: $50'.
Learn moreStock corporation: $150 reinstatement fee PLUS $150 annual report filing fee = $300 total due on the Combined Certificate of Reinstatement and Annual Report.
Learn moreEverything you need to run your Connecticut C-Corp
Formation is the first step — stay compliant and operational with these services.
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Ready to form your Connecticut C-Corp?
Formation is free — you pay only the $250 Connecticut state filing fee. Personal-asset protection, pass-through taxation, and a complete document package, filed in 3-5 business days (online).
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