How to Start a C Corp in Connecticut: A Step-by-Step Guide

Starting a C corp in Connecticut is a sequence of well-defined steps: clear a name, file a certificate of incorporation with the Connecticut Secretary of the State, appoint a registered agent, adopt bylaws, hold an organizational meeting, issue stock, get an EIN, register for state taxes, and keep up with annual reports. None of it is mysterious, but the order matters, and a few steps -- stock issuance especially -- are easy to get wrong in ways that are expensive to fix later.

This guide walks through each step in plain English, then addresses the question every startup founder eventually asks: should you incorporate in Delaware instead? If you are still deciding whether a C corp is even the right structure, read our comparison of S-corp vs sole prop vs LLC vs C-corp first, or download our free Connecticut Business Entity Selection Guide (PDF).

Step 1: Choose a Name and Check It Is Available

Your corporate name must be distinguishable from entities already registered in Connecticut, and it must include a corporate designator such as "Inc.," "Corp.," or "Incorporated." The Connecticut Secretary of the State runs a public business records search where you can check availability before you file.

Two practical tips. First, check the trademark picture and domain availability at the same time -- a name the state will accept can still create a trademark conflict. Second, if you are not ready to file yet, Connecticut allows you to reserve a name for a period of time for a small state fee.

Step 2: File a Certificate of Incorporation

The certificate of incorporation is the document that legally creates your corporation. In Connecticut you file it with the Secretary of the State, and a state filing fee applies. At minimum it covers your corporate name, the number of shares the corporation is authorized to issue, your registered agent, and the incorporator.

The choice that deserves the most thought is authorized shares. Authorizing a large number of shares with a very low par value is common for startups because it leaves room for founders, an option pool, and future investors without amending the certificate. Whatever you choose, understand that "authorized" shares are just the ceiling -- nothing is owned by anyone until shares are actually issued in Step 6.

Step 3: Appoint a Registered Agent

Every Connecticut corporation must maintain a registered agent -- a person or company with a Connecticut street address who accepts legal papers and official state mail on the corporation's behalf. You can serve as your own agent if you have a Connecticut address and will reliably be there during business hours, or you can hire a commercial registered agent service.

Do not treat this as a throwaway detail. If someone sues your corporation and the registered agent misses the papers, you can lose a lawsuit by default without ever knowing it existed.

Step 4: Adopt Bylaws

Bylaws are the corporation's internal rulebook: how directors are elected, how meetings are called, who the officers are and what they can do, and how stock is transferred. Connecticut does not require you to file bylaws with the state, but your bank, your investors, and eventually your acquirer will all ask to see them.

Bylaws do not need to be creative. They need to be consistent with your certificate of incorporation and actually followed. A corporation that ignores its own bylaws hands ammunition to anyone who later argues the corporate form should be disregarded.

Step 5: Hold the Organizational Meeting

After filing, the incorporator or the initial board holds an organizational meeting -- or signs a written consent in place of a meeting -- to put the corporation's skeleton in place. Typical actions: appoint the initial directors, adopt the bylaws, elect officers, authorize opening a bank account, approve the form of stock certificates, and authorize the initial issuance of stock.

Write it down. The minutes or written consent from this meeting are the first pages of your corporate record book, and diligence teams in every future financing or sale will want to see them.

Step 6: Issue Stock to the Founders

This is the step founders most often botch. Issuing stock means the corporation formally sells or grants shares to each founder, documented with stock purchase agreements and recorded in a stock ledger. Founders typically pay for their shares with cash, contributed property, or assigned intellectual property -- and that assignment of IP into the company matters enormously to later investors.

If founder shares are subject to vesting, be aware that an 83(b) election exists: a filing a founder can make with the IRS, within a strict deadline measured from the stock grant, that changes when the stock is taxed. Missing the window is one of the most common and least fixable startup mistakes, so talk to a tax advisor before you sign a vesting agreement, not after.

Step 7: Get an EIN

An Employer Identification Number is the corporation's federal tax ID. You get it from the IRS directly, online, at no cost -- there is no need to pay a third-party service for this. You will need the EIN to open a bank account, run payroll, and file tax returns.

Step 8: Register for Connecticut Taxes

A Connecticut C corp registers with the Department of Revenue Services for the taxes that apply to it, which typically include the state's corporation business tax and, depending on what you sell and whether you hire, sales and use tax and employer withholding. Registration is a separate step from incorporating -- filing with the Secretary of the State does not register you for taxes.

If you will have employees, you will also register with the state for unemployment insurance purposes and set up workers' compensation coverage as required.

Step 9: File Your Annual Report

Connecticut corporations must file an annual report with the Secretary of the State each year, with a state filing fee. It is a short filing -- current addresses, officers, directors, and agent -- but missing it can push your corporation out of good standing and, eventually, into administrative dissolution. Put it on a recurring calendar the day you incorporate.

Should You Incorporate in Delaware Instead?

If you plan to raise venture capital, the honest answer is that most institutional investors will expect a Delaware C corp. Delaware's corporate law is deep and predictable, its Court of Chancery decides corporate disputes without juries, and every startup lawyer and investor already knows its documents. Many term sheets simply assume Delaware, and converting a Connecticut corporation to a Delaware one mid-financing adds cost and delay.

But Delaware is not free. A Delaware corporation doing business in Connecticut has to register in Connecticut anyway as a foreign corporation -- meaning two states' filings, two annual obligations, and Delaware's franchise tax on top. For a Connecticut business that is not chasing institutional capital -- a profitable local company that wants C corp taxation, or a family business with corporate structure -- incorporating at home in Connecticut is simpler and cheaper to maintain.

The decision rule we give founders: raising venture money on a defined timeline, incorporate in Delaware; otherwise, Connecticut is usually the practical choice, and you can convert later if your plans change.

The Takeaway

Incorporating is the easy part -- the state processes certificates of incorporation every day. What separates clean corporations from messy ones is everything around the filing: bylaws that get followed, an organizational meeting that actually happened on paper, stock that was properly issued with IP assigned in, tax registrations done on time, and annual reports never missed. Do those nine steps in order and keep the records, and your corporation will hold up when it matters -- in a lawsuit, a financing, or a sale.

If you want help incorporating -- or a second opinion on Connecticut vs. Delaware -- book a $50 consultation. And if you are still weighing entity types, see LLC vs Partnership vs Corporation for the broader comparison.

Attorney Advertising. This article is general information, not legal or tax advice for your specific situation.