How to File Connecticut's Certificate of Organization
Connecticut calls its articles of organization a Certificate of Organization. What goes on it, what is filed with it and what it costs, read from Connecticut government sources.
The short answer. To form an LLC in Connecticut, you file the Certificate of Organization with the Connecticut Secretary of the State, Business Services Division. The state filing fee is $120. Of the 15 items this page tracks, the form requires 8, asks for 2 only in some cases and leaves out 5.
The Connecticut Certificate of Organization at a Glance
| What Connecticut calls it | Certificate of Organization |
| State filing fee | $120 |
| Processing time | Check with the Connecticut Secretary of the State, Business Services Division |
| Where to file | Connecticut Secretary of the State, Business Services Division |
| File online | Yes, online, open the filing portal |
| Blank form | Download it from the state |
| Law that sets its contents | Conn. Gen. Stat. § 34-247 |
| Filed with it or right after | Nothing else |
Read from a Connecticut government source, last checked September 23, 2026. The filing fee and processing time come from our Connecticut cost record. See the sources.
What Goes on Connecticut's Certificate of Organization
Each row is one of the 15 items this page tracks, with what Connecticut's Certificate of Organization asks for. "Not on the form" means we checked and found no place for it on the Certificate of Organization. "Not checked" means we have not confirmed it either way.
| Item | On the form |
|---|---|
| LLC name | Required |
| Registered agent's name | Required |
| Registered office address | Required |
| Principal office address | Required |
| Mailing address | Required |
| Organizer's name | Required |
| Members' names | Only in some cases. At least one member or manager must be listed with a business address and a residence address, so a member's name is needed when no manager is listed. |
| Managers' names | Only in some cases. At least one member or manager must be listed, so a manager's name is needed when no member is listed. |
| Member-managed or manager-managed | Not on the form |
| Business purpose | Not on the form |
| Duration | Not on the form |
| Effective date | Not on the form |
| County | Not on the form |
| Email address | Required |
| Registered agent's consent | Required |
These entries are confirmed public record: members' names and managers' names.
The registered agent rows are covered in more depth in Connecticut's registered agent requirements, and the steps before and after this filing are in how to start an LLC in Connecticut.
What the LLC's Name Must Include
The LLC's name must include one of these: "Limited Liability Company", "L.L.C.", "LLC", "Ltd. Liability Company", "Limited Liability Co." or "Ltd. Liability Co.".
A professional LLC's name uses one of these instead of the endings above: "Professional Limited Liability Company", "Professional Ltd. Liability Company", "Professional Limited Liability Co.", "Professional Ltd. Liability Co.", "P.L.L.C." or "PLLC".
Rule: Conn. Gen. Stat. § 34-243k(a); § 34-243h(e).
File These With It or Right After
Nothing else has to be filed with it.
Draft Your Certificate of Organization
The generator below starts with Connecticut selected and drafts the document from what you enter. Compare the draft with the state's current form before you file.
MyStateLLC.com is not a law firm, not an attorney, and not a document preparation service. This is a self-service tool: it formats information you enter into a state template, and no one at MyStateLLC reviews, corrects, or files it for you. This tool and the document it generates are informational and are not legal, financial, or tax advice, and are not a substitute for the advice or services of an attorney. MyStateLLC cannot give legal advice, does not prepare or file documents itself, and communications with MyStateLLC are not privileged. Using this tool does not create an attorney-client relationship. LLC laws vary by state and this document is not reviewed by anyone before you file it. Consult a licensed attorney or CPA in your state before you sign or file it.
Where are you forming your LLC?
After It Is Approved
| Certified copy of the filed Certificate of Organization | $55 |
| Changing it later (Certificate of Amendment) | $120 |
Where these fees come from: the sources.
Professional LLCs in Connecticut
In Connecticut, a professional LLC is formed with the same Certificate of Organization. A professional LLC's name uses one of these instead of the endings above: "Professional Limited Liability Company", "Professional Ltd. Liability Company", "Professional Limited Liability Co.", "Professional Ltd. Liability Co.", "P.L.L.C." or "PLLC". Your profession's licensing board may have requirements of its own, so check with it before you file.
Worth Knowing in Connecticut
Connecticut requires the business address and home (residence) address of at least one member or manager, and the certificate becomes a public filing. The statute lets the Secretary of the State accept a business address instead of a home address where good cause is shown, such as a personal security risk. The form also requires a six-digit NAICS industry code and a valid email address for the LLC.
Frequently Asked Questions
Sources
- cga.ct.gov/current/pub/chap_613a.htmConn. Gen. Stat. Chapter 613a (34-243h, 34-243k, 34-243n, 34-243u, 34-247, 34-247f)
- business.ct.gov/-/media/businessonestop/bsd_forms/llc---20211221/certificate_of_organization-fillable.pdfCertificate of Organization, Limited Liability Company: Domestic (Rev. 12/2025)
- business.ct.gov/knowledge-base/articles/domestic-limited-liability-companies-forms-and-feesDomestic Limited Liability Companies Forms and Fees
- business.ct.gov/knowledge-base/articles/submit-paper-filingsSubmit paper filings
- business.ct.gov/-/media/businessonestop/bsd_forms/copy_request_wcoversheet.pdfRequest for Copies
- service.ct.gov/business/s/brsflowBusiness.CT.gov online filing
- business.ct.gov/-/media/businessonestop/fee-schedule-revised-712020.pdfBehind the state filing fee on this page
The rows and fees on this page were read from the Connecticut government sources above, not from a formation service, and anything we could not confirm there is marked Not checked. See our editorial policy for how these are verified and corrected.
This guide is general information, not legal or tax advice, and reading it does not create an attorney-client relationship. It reports what each state's filing office publishes about the document that forms an LLC, with the sources this page cites. It cannot tell you what your own filing needs: fees and forms change between our reviews, several occupations cannot use an ordinary LLC at all and must use a professional entity or a separate professional form, and your city or county may require a registration of its own. Confirm the current fee and form with the filing office named on this page before you send anything.
Edmond Hui · Founder, MyStateLLC
Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.