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LLC registration

How to Register an LLC in Connecticut

Registering an LLC in Connecticut means filing a Certificate of Organization with the Connecticut Secretary of the State (business.ct.gov), for $120. That one filing creates the company. Here is what the filing asks for, what it costs, how long Connecticut says it takes, and the Connecticut registrations that come after it.

By Standard Filings · Last updated · State fees verified October 2026 · Reviewed by the Standard Filings editorial team

Ready to file in Connecticut?

The certificate of organization prepared and filed for you, the state fee shown on its own line before you pay, and the approved copy emailed.

File your Connecticut LLC

at america-llc-filing.com, or start on Standard Filings

What registering an LLC in Connecticut means

Connecticut keeps the register of companies formed under its law. Your LLC is on it the moment the Connecticut Secretary of the State files a Certificate of Organization. From that day the company can open a bank account, sign contracts and be sued in its own name rather than yours. The registration does not include a federal tax number, a Connecticut tax account or a local business license; those come after and are separate registrations with other offices.

People use "register", "form" and "file" for the same act. In Connecticut the act is one document, a Certificate of Organization, and one fee, $120. The step-by-step for everything around it, from the operating agreement to the bank account, is in how to start an LLC in Connecticut; this page is about the registration itself.

Registration document
Connecticut
Certificate of Organization
Filed with
Connecticut
The Connecticut Secretary of the State (business.ct.gov)
State fee
Connecticut
$120
Registered agent
Connecticut
Required; Connecticut street address; agent accepts on the filing
Published processing time
Connecticut
Not published by the state
State expedite
Connecticut
$50 for 24-hour service on online filings.
Recurring state report
Connecticut
$80/year, due march 31 (fixed window Jan 1 to Mar 31, not anniversary-based)

What it costs to register an LLC in Connecticut

The filing fee is set by Connecticut and is the same whether you file it yourself or a service files it for you. Connecticut charges $120 for the Certificate of Organization.

Certificate of Organization filing fee
Amount
$120
Notes
Paid once, to the state
Expedited review
Amount
$50 for 24-hour service on online filings.
Notes
Optional, set by the state
Recurring annual report
Amount
$80/year
Notes
Due march 31 (fixed window Jan 1 to Mar 31, not anniversary-based)
Late penalty on the report
Amount
No flat late fee published; a missed report still risks loss of good standing.

State fees verified October 2026 and set by the state, not by us. Online filing prices. Yearly costs, the five-year total and how Connecticut compares are in Connecticut LLC cost.

Step 1: Confirm Connecticut is the state to register in

Register where the company will actually operate. An LLC that does business in Connecticut but registers elsewhere has to register in Connecticut anyway, as a foreign LLC, and pay two states.

Wyoming, Delaware and Nevada come up because of privacy, case law or taxes. They make sense for a holding company or a business with no fixed location. A company that operates in Connecticut and registers somewhere else ends up registered in both. The comparison is in cheapest states to form an LLC.

Step 2: Clear the name with Connecticut

Connecticut requires a name distinguishable from every company on its records, with an LLC designator. Search the state's business records at business.ct.gov before you file.

Rules on designators, restricted words and the distinguishability test are in LLC name rules. A rejection for a name conflict costs days and, in some states, a second fee.

Step 3: Name a Connecticut registered agent

Connecticut requires a registered agent with a Connecticut street address, available in business hours. On the filing: The agent signs accepting the appointment on the certificate. Name someone who has not agreed and the filing is rejected. Serving yourself: A CT-resident individual (including a member or manager) can serve. The LLC itself cannot.

Who may serve, whether the agent signs, and what becomes public: Connecticut registered agent requirements.

Step 4: Prepare a Certificate of Organization

The Connecticut form asks for the company name with its LLC designator, the registered agent and its Connecticut street address, the principal or mailing address, and the organizer who signs. Any person other than the LLC itself. A business entity may be organizer, signed by an individual giving name and title. A filing service qualifies. Everything on it becomes a public record; what Connecticut shows is listed below.

The document itself, and what every state's version asks for, is explained in articles of organization.

Step 5: File a Certificate of Organization and pay the $120 fee

Filed with the Connecticut Secretary of the State (business.ct.gov). The state fee is $120, paid once. Connecticut does not publish a standard processing time for LLC filings that we could verify; the filing portal shows the current turnaround when you file.

Faster review: $50 for 24-hour service on online filings.

Connecticut takes the filing from the public at business.ct.gov. Ready to file? The Certificate of Organization prepared and filed for you, with the state fee on its own line: form your Connecticut LLC at america-llc-filing.com.

Step 6: Complete the Connecticut registrations that follow

2 registrations follow in Connecticut: (1) Annual Report; (2) CT DRS tax registration (if applicable). Then the federal tax number and the operating agreement.

The order and the deadlines are in what to do after forming an LLC. The recurring state report is the one owners forget.

What becomes public when you register in Connecticut

Everything on a Certificate of Organization is a public record once Connecticut files it; anyone can pull it from the state's business search. On the Connecticut filing: At least one member or manager: name, title, business address and residence address. Organizer name and signature.

Any person other than the LLC itself. A business entity may be organizer, signed by an individual giving name and title. A filing service qualifies. The operating agreement, the ownership split and the tax election are not filed with Connecticut and stay private. Do you need an operating agreement?

How long Connecticut takes to register an LLC

Connecticut does not publish a standard processing time for LLC filings that we could verify; the filing portal shows the current turnaround when you file. Paid faster review is offered: $50 for 24-hour service on online filings. The figures are the state's own and move with its workload; a rejection for a name conflict or a missing agent consent restarts the clock. Every state's published time is in how long it takes to form an LLC.

Ready to register your Connecticut LLC?

Name checked, Certificate of Organization prepared and filed with Connecticut, the $120 state fee on its own line, approved copy emailed.

File your Connecticut LLC →

After registration in Connecticut

The state registration is the first of several. These are the ones Connecticut owners run into, in the order they usually come up.

  • Annual Report. Due yearly, Jan 1 to Mar 31, starting the year after formation. Cost: $80.
  • CT DRS tax registration (if applicable) Due before taxable activity. Cost: varies.
  • Federal tax number (EIN). Issued by the IRS after the state registration, at no charge; the bank asks for it. How to get one: Connecticut EIN number.
  • Operating agreement. Not filed with Connecticut, but the document that says who owns the company and who can sign for it.

The recurring report is where most companies lose good standing. When it is due, file the Connecticut report at america-llc-filing.com, or the Connecticut LLC annual report page has the due date, fee, late penalty and portal.

Before you file in Connecticut

From Connecticut's published forms and filing instructions:

  • The 6-digit NAICS code is a required field.
  • At least one member or manager needs a residence address (no PO box) and a business address (or 'none').
  • The agent must sign accepting the appointment.
  • An individual agent also needs CT residence, business and mailing addresses.

Sources

The Connecticut facts on this page come from the state's own forms, fee schedules and statutes, read for the October 2026 fee audit. Fees change; the state's page is the final word.

Standard Filings is a filing service, not a law firm. This page is general information from Connecticut's published filing rules and fee schedules, not legal or tax advice.

Connecticut LLC registration FAQ

How much does it cost to register an LLC in Connecticut?+

Connecticut charges $120 to file the Certificate of Organization, paid once to the state and the same whether you file yourself or use a service. After that, the recurring requirement is $80/year, due March 31 (fixed window Jan 1 to Mar 31, not anniversary-based). State fees verified October 2026; the full picture is in Connecticut LLC cost.

Where do I register an LLC in Connecticut?+

With the Connecticut Secretary of the State (business.ct.gov). That is the only office that creates the company. Tax accounts, the registrations listed above and local licenses are registered separately afterwards.

How long does Connecticut take to register an LLC?+

Connecticut does not publish a standard processing time for LLC filings that we could verify; the filing portal shows the current turnaround when you file. Paid faster review is offered: $50 for 24-hour service on online filings.

Do I need a Connecticut registered agent?+

Yes. Connecticut requires a registered agent with a Connecticut street address, available in business hours. On the filing: The agent signs accepting the appointment on the certificate. Name someone who has not agreed and the filing is rejected. Serving yourself: A CT-resident individual (including a member or manager) can serve. The LLC itself cannot. Who may serve and what becomes public is in Connecticut registered agent requirements.

Can I register a Connecticut LLC from out of state?+

Yes. Connecticut takes filings from anyone, but the registered agent must have a Connecticut street address, so an out-of-state owner names a Connecticut resident or a registered agent company. If the company does business where you live, it registers there too, as a foreign LLC.

What do I file in Connecticut every year?+

Connecticut's recurring requirement: $80/year, due March 31 (fixed window Jan 1 to Mar 31, not anniversary-based). Late: No flat late fee published; a missed report still risks loss of good standing. Also recurring: CT DRS tax registration (if applicable).

Register your Connecticut LLC

The Certificate of Organization prepared and filed with Connecticut, the $120 state fee shown on its own line before you pay, approved copy emailed.

File my Connecticut LLC