How to Start a Connecticut Corporation — Step by Step

Your corporation's name has to be distinguishable from every other business name already registered in Connecticut. That is a legal standard, not just a common-sense one — names that differ only by punctuation, spacing, or filler words like "the" may not clear. The Secretary of the State checks proposed names against all entities on file, not just corporations.

Start at the Connecticut business records search. Search your proposed name and close variations of it. If something too similar is already registered, the state can reject your Certificate of Incorporation, which costs you time.

Naming rules for a corporation

• The name must include a corporate designator — "Corporation," "Incorporated," "Company," or an abbreviation such as "Corp.," "Inc.," or "Co."
• It must be distinguishable from all active names in the Connecticut database.
• Certain restricted words (for example, terms implying banking, insurance, or a professional practice) may require approval from the relevant regulator before the name can be used.

Reserving a name

If you are not ready to file but want to hold a name, Connecticut lets you reserve it for a limited period through the Business One Stop. A reservation does not create the corporation — it just keeps the name available while you handle everything else.

Before you file, you need a registered agent decided on and willing to serve, because the agent is named in the Certificate of Incorporation. The registered agent is the corporation's official point of contact for legal process and state correspondence, and Connecticut requires every corporation to maintain one at a physical Connecticut street address for the life of the entity.

Who can serve

• Yourself — if you have a physical Connecticut street address (not a P.O. box) and are reliably available during business hours. Your address will appear in the public record.
• Another individual — any Connecticut resident with a street address in the state, such as a co-founder, an employee, or an attorney.
• A commercial registered agent service — a firm licensed to serve as a registered agent within Connecticut. It keeps its professional address in the public record instead of yours and ensures someone is always available to accept documents.

Why the choice matters

Whatever address you list becomes searchable in the public business records. Many owners use a commercial service specifically to keep a home address out of a public database and to guarantee that legal documents are actually received — a lawsuit served on an agent who has moved or is unavailable can lead to a default judgment.

The Certificate of Incorporation is the filing that creates your corporation in Connecticut's official records. You file it online through the Business One Stop portal. Connecticut has largely retired paper filing for new corporations, so the portal is the standard route.

What goes on the Certificate

• Corporate name — with the required designator, matching what you cleared in the name search.
• Authorized shares — the total number of shares the corporation may issue, and the classes and their rights if you set up more than one class. This is a ceiling, not the number you actually issue on day one.
• Registered agent and registered office — the agent's name and a physical Connecticut street address.
• Incorporator — the person signing and filing. The incorporator does not need to be an owner.

Online filings are generally processed within a couple of business days. Once processed, the corporation appears in the state's business records search and your stamped Certificate is available to download.

Filing the Certificate creates the corporation, but it does not organize it. That happens at the organizational meeting, held by the incorporator or the initial directors right after formation. This is the step that turns a name on file into a functioning company.

What gets done at the organizational meeting

• Adopt corporate bylaws — the internal rulebook governing directors, officers, meetings, and voting. Bylaws are not filed with the state; they stay in your records.
• Appoint the initial board of directors if the Certificate did not name them.
• Elect the officers — at a minimum a president and a secretary, often a treasurer.
• Authorize and issue stock to the founding shareholders in exchange for their cash, property, or services.
• Approve opening a corporate bank account and adopt a banking resolution.
• Handle startup resolutions such as adopting a fiscal year or approving an S corporation election.

Write minutes of the meeting and keep them in your corporate records book alongside the bylaws, the stock ledger, and the Certificate. These records are the proof the corporation was properly organized if it is ever challenged, audited, or examined by an investor or buyer.

An Employer Identification Number is the free, nine-digit federal tax ID that the IRS assigns to a business. Every corporation needs one — a corporation is a separate taxpayer, so it cannot use an owner's Social Security number.

Why the corporation needs it

• To file the corporation's federal tax return.
• To open a corporate bank account — banks require the EIN.
• To hire employees and run payroll.
• To make an S corporation election, which is filed under the corporation's EIN.

Apply online through the IRS EIN Assistant. Plan on roughly ten minutes to finish it, and because the number comes back right away, it's usable that same day. The online tool requires a responsible party with a Social Security number or ITIN; applicants without one apply by fax or mail using Form SS-4.

Separate finances are essential to the liability shield. If corporate money and personal money flow through the same account, a court has an easy argument that the corporation is not a real separate entity — which is exactly the reasoning used to pierce the veil.

What banks usually require

• The stamped Certificate of Incorporation.
• The IRS EIN confirmation.
• The corporate bylaws and a banking resolution authorizing the account.
• Government-issued ID for the authorized signers.

Community banks and credit unions are often more flexible with brand-new corporations than large national chains, and several online business banks can open an account without a branch visit. Compare monthly fees, transaction limits, and minimum balances before choosing.

Most of the effort is front-loaded into formation. After that, staying compliant is mainly one annual filing plus attention to changes and taxes.

Annual report

Connecticut requires every corporation to file an annual report, and it must be filed online — paper reports are rejected. The report confirms your registered agent, principal office, and officers and directors. Keep track of the deadline; letting it lapse eventually leads the state to place the corporation out of good standing, which is more disruptive to fix than to prevent.

Registered agent maintenance

If your agent changes address, resigns, or you switch agents, update the record promptly. An outdated registered agent leaves the corporation out of compliance even when everything else is current.

Taxes and formalities

A C corporation files a federal corporate return and pays Connecticut's corporation business tax; an S election changes the federal treatment to pass-through. Beyond taxes, keep holding your annual meetings, keep minutes, and keep the stock ledger current. Following your own bylaws is part of what keeps the shield defensible.