Form an LLC · CT

How to form an LLC in Connecticut

Connecticut LLCs are formed by filing a Certificate of Organization with the Connecticut Secretary of the State, Business Services Division — the official filing fee is $120 (see the fee notes below). Corpus prepares and files it for $250 all-in, including your first year of registered-agent service.

Form your Connecticut LLC

What Connecticut requires

Formation document
Certificate of Organization verified 2026-09-24
Filing office
Connecticut Secretary of the State, Business Services Division verified 2026-09-24
Connecticut filing fee for the Certificate of Organization
$120 Certificate of Organization filing fee (Includes appointment of the statutory agent). verified 2026-09-30
  • Optional: $60 name reservation. source
  • Optional: $50 online expedited service (only if the option is offered at the end of the online filing). source
  • Optional expedite fees are also listed under processing; do not add the two fields. source · source 2
Online filing
Yes — You can file a domestic LLC Certificate of Organization online through the state portal. verified 2026-09-24
Standard processing time
Most online filings are accepted automatically; no fixed ordinary turnaround is stated. verified 2026-09-30
Expedited options
Online expedited service $50 (Per transaction, only if offered at the end of the online filing) verified 2026-09-30
  • The expedite fee matches the formation_filing add-on and is not a second charge. source · source 2
Name requirement
The name must contain “limited liability company,” “LLC,” or “L.L.C.” verified 2026-09-24
Registered agent
Required — A domestic Connecticut LLC must appoint a statutory agent when it files its Certificate of Organization. verified 2026-09-24
LLC statute
Connecticut Uniform Limited Liability Company Act, Conn. Gen. Stat. §§ 34-243 to 34-283d verified 2026-09-24

What you’ll need

The Corpus intake collects this information to prepare the filing. Some questions are asked only when they apply — for example, the management question is asked only when the company has more than one owner.

  • What do you want to name the company?
  • In a sentence, what will the business actually do?
  • Where should official mail go — street, city, state, ZIP?
  • What email should we use for this order?
  • Which industry code fits this business?
  • Besides you, will anyone else have authority to make decisions for the business?
  • Who owns this company?

Connecticut asks nothing beyond the standard questions.

What it costs with Corpus

State fees (filing fee + the state's processing charges)
$120
Registered agent, year one
$100
Corpus service
$30
Total at checkout
$250

Registered agent renews at $99/yr after the included first year — cancel anytime. Itemized pricing for every state is on the price grid; how Corpus compares to other formation services is on the comparison page.

After you form: staying in good standing

Annual report
Annual report — filed online from January 1 through March 31 each year. verified 2026-09-30
Report fee
$80 verified 2026-09-30
Franchise or privilege tax
None for a standard LLC. verified 2026-09-30
  • Rates, caps, thresholds, apportionment and exemptions: see Connecticut Department of Revenue Services; the agency says the Business Entity Tax ended for periods beginning after December 31, 2018. source

Comparing what registered-agent service costs after year one across providers? The comparison page publishes renewal prices.

Form it with your AI agent

You don’t have to do the intake here. Any agent that can open a link can run the whole thing — Corpus’s formation tools give it Connecticut’s requirements and live price, it asks you the questions above, and it hands back a prefilled link you review and pay. Paste this into your assistant:

Form an LLC in Connecticut for me with Corpus (corpuslaw.us). Use its formation tools to get Connecticut's requirements and price, ask me what you need, and give me the prefilled link.

The guide is on /agents, the protocol reference is /docs/mcp, and the installable skill for this state is the Connecticut SKILL.md.

Sources

Every verified fact above names where Corpus read it and the date it was last verified. Sources marked secondary are third-party write-ups used only where an official page did not publish the answer.

Corpus is not a law firm and does not provide legal advice. Fees and rules change — each verified fact above shows the date Corpus last verified it; anything marked “not yet verified” should be confirmed with the filing office.