How To File A Connecticut Certificate Of Organization For Your LLC (May. 2026)

With its stable regulatory environment and strong access to the Northeastern business corridor, Connecticut is a great state to form a Limited Liability Company (LLC). To officially establish one, you must file your Certificate of Organization with the Connecticut Secretary of the State.

You can complete your filing online using the Business.CT.gov or by submitting a paper form by mail. Both filing methods cost $120, with your processing time depending on your chosen filing method and the accuracy of your submission.

I will explain how to file the Connecticut Certificate of Organization in detail, including the required information, submission options, expected timeframes, and your next steps once approved.

A Detailed Overview Of The Connecticut Certificate Of Organization

The Secretary of the State of Connecticut Certificate of Organization is the official legal formation document that establishes your LLC as a separate business entity in the state. Your LLC doesn’t legally exist until this document has been correctly filed and officially accepted by the Connecticut Secretary of the State. This is set under Connecticut General Statutes § 34-247 (Connecticut Uniform LLC Act).

The state provides three main filing methods when submitting your Certificate of Organization in Connecticut. All methods will cost you a one-time filing fee of $120. You will have the option to pay an extra $50 fee to expedite the process.

I’ve summarized the different filing methods in the table below so you can compare the processing times, payment methods, and access to expedited filing. I will discuss the details further below.

How To File A Connecticut LLC Certificate Of Organization Online

You must sign in to your account first when using the online method and digital mail system. Scroll down to my guide on creating a CT.gov account if you haven’t made one yet. It’s a fast and simple step-by-step process.

You can begin your registration process by visiting the CT.gov: Registering Your Business website once you’ve completed your CT.gov account.

Select “Register today” to be directed to the CT.gov business registration portal, where you can start filing your LLC.

1. Business Type

To begin, the system will ask you to confirm the type of business registration you’re making in Connecticut. You’ll be given the question: “Are you registering a new business in Connecticut?”

You have two options:

• Domestic: Your business is a brand-new Connecticut LLC and will be legally created in the state.
• Foreign: Your LLC has been formed in another state or country, and you want to register it to operate legally in Connecticut.

Since the instructions provided here are specifically for forming a domestic LLC in Connecticut, choose Domestic, then click Next to continue to the following step.

2. Legal Structure

Next, you’ll be asked to choose your business’s legal structure. Select “Limited Liability Company” as this guide is specifically about forming a Connecticut LLC.

The other options (Corporations, LLP, or non-profit entities) are not relevant for your LLC setup and can be ignored.

Click “Next” to move forward after confirming your LLC.

3. Name Reservation

You’re allowed to reserve your LLC business name before submitting your formation documents. This temporarily prevents other businesses from using the same or a confusingly similar business name once you’ve finalized your setup.

Use the online filing portal or consult the Connecticut Secretary of the State’s official guidance on Reserving a Business Name website to access your application form and filing instructions.

Here is what you need to know:

• It costs $60 to reserve your business name.
• Your reservation is valid for 120 days from your filing date. This cannot be extended or renewed.
• You can submit your application online (Recommended) via the Connecticut Secretary of the State’s portal or by mail to the Secretary of the State.

This is an optional process and is NOT required to form your Connecticut LLC.

4. Business Name

At this point, you can enter your official LLC name that you want to be registered with your Connecticut LLC in the “Business name” field. This can be done if your LLC name is not yet reserved.

Next, add a legal designation once your desired LLC name is shown as available. The state requires all LLC names to include an official identifier. Choose one of the provided tags below the field (LLC, L.L.C, or Limited Liability Company). This will then be automatically applied to your business name.

Click “Next” after confirming your name and legal designation to continue to the next step.

5. Business Email

Enter the official email address associated with your LLC. First, type your business email in the first field, then re-enter it in the confirmation field to ensure accuracy.

Click Next to proceed to the following step once both fields match.

6. NAICS Information

First, select the NACIS Code that best describes your LLC’s main business activities. The state uses this for statistical purposes. If your LLC changes business activities in the future, you can update this code on your Annual Report.

You can:

• Use Search to type keywords related to your business.
• Use Browse to navigate through industry categories.

b. Using “Search” To Find Your NAICS Code

When you already have a general idea of your business activity, use the search option to efficiently locate your NAICS code.

1. Enter the keywords to describe your LLC’s primary business activities.
2. Review the list of suggested categories along with their 6-digit NAICS codes.
3. Select the option that most accurately describes your core business operations.

Use this approach to clearly describe your business services.

c. Using “Browse” To Select Your NAICS Code

If you’re unsure of the exact wording for your business activity, you can use the browse option. This allows you to navigate through structured industry categories.

1. Select the broad industry that matches your LLC.
2. Click through the increasingly specific subcategories.
3. Find the description that most accurately reflects your primary business activity.
4. Select the correct option to assign the NAICS code to your application.

This is an excellent choice if you want to use the classification system step-by-step instead of trying to guess keywords.

Lastly, review your results and click the option most accurately reflecting your business activities. The NAICS code will be saved to your application once you’ve selected one. Then, click “Next” to continue.

7. Business Category Survey (Optional)

This section is used for support programs and statistical purposes only. Therefore, completing it is entirely optional.

1. Check the boxes that apply to your business ownership if you want to complete this section (For example, women-owned, veteran-owned, or minority-owned).
2. Select “None of the above” or “Prefer not to answer” if none of the categories are relevant or you don’t want to disclose this information.

Click “Next” to continue to the next step of your registration. If you skip this step, there will be no impact on your approval.

8. Business Address

You will have two sections to complete in this step:

a. Principal Office Address

Your principal office address is flexible and does not need to be restricted to Connecticut. It may be:

• Located in Connecticut, another U.S. state, or another country.
• A virtual official address or mailbox rental.
• A traditional office address or home address.
• Your Connecticut Registered Agent’s address (If they allow this).

b. Mailing Address

In this section, either:

• Check the box if it’s the same as your principal office address.
• Uncheck the box and enter a different address (if you want your business mail to be sent elsewhere). You can use a P.O. box for this address.

Click “Next” to continue once you’ve verified all details for accuracy.

9. Add A Registered Agent

Click “Add agent details” to open the entry window. Then, proceed according to your agent type.

a. If Your Registered Agent Is An Individual

Choose “Individual” and provide their contact details if you want to register yourself, a friend, or a family member. You must get their consent first.

First, add their basic contact information (Full name, mobile number, email address). Then, click “Next” once everything is complete.

You must then provide the agent’s address details on the following screen. This includes:

• Business address: can be anywhere, including outside Connecticut.
• Connecticut residence address: must be a physical address in Connecticut.
• Connecticut mailing address: must also be in Connecticut.

Click Confirm to save the agent information once you’ve completed the required address fields.

b. If You Appoint A Business (Commercial) Registered Agent

Search the agent company by name on the business agent screen. Then, select the correct entry from the Connecticut Business Registry.

Each result shows the Business ALEI (Stands for Authoritative Legal Entity Identifier), legal company name, business address, and mailing address. This allows you to verify that you’re choosing the right registered entity.

Once you have selected the correct business agent, complete their contact and confirmation details in the required boxes. Your Registered Agent’s address MUST be located in Connecticut.

• Enter your agent’s email address and confirm it.
• Provide their phone number, using their official office line.
• Only edit the displayed address if it is incorrect.

10. Add A Principal

In this step, you must declare who has the authority to act on behalf of your LLC. Your LLC principal is typically an owner or decision-maker, not your Registered Agent, unless that person is actively managing your business.

First, you’ll be asked if your Registered Agent is also a principal:

• If the agent is genuinely acting as an owner or manager of the LLC, select “Yes.” The system will automatically populate the principal information using the agent’s details.
• If the agent only serves a compliance role, select “No.” This is the correct choice in most cases involving Commercial Registered Agents.

Once you select “No”, the system will move you to the next screen, where you must choose whether the principal is an Individual or a Business entity. Choose the appropriate type when adding a new principal:

• Individual: For real persons such as LLC members or managers.
• Business: For another entity acting as a controlling party.

a. Individual Principal

If you select Individual, the system will prompt you to enter the principal’s personal details. This section identifies the specific person who has the authority to act on behalf of the LLC.

a1. Principal’s Basic Details

You first need to enter the principal’s basic details, including:

• Name: Enter the principal’s full legal name.
• Title: Select the suitable role from the dropdown, which includes member, manager, managing member.
• Email address: Provide an active email for state correspondence.

a3. Individual Principal’s Address

The system will then move you to a pop-up window asking whether this principal has a separate business address (Besides their residence).

• Choose Yes if the individual uses a distinct business location for LLC activities.
• Choose No if the principal does not maintain a separate place of business.

If you select Yes, you will simply be required to enter an additional business address before proceeding, along with providing the residence address.

• Business address: Enter the full street address in the city, state, and Zip code fields, and use “Same as principal office address” only when both addresses are identical.
• Residence address: Enter the information in the same manner. A waiver may appear for safety or privacy concerns, but it is granted only when “Good cause” is demonstrated – I suggest leaving this box unchecked.
• You may use any valid U.S. or foreign address as long as it reflects the principal’s actual address.

If you select No, your next filing section will only require the residence address. The residence may be located abroad or in any U.S. state, as long as the address is accurate and you select the correct address format.

Once the information is complete, select Confirm to save the individual principal.

a4. Finalize The Entry

Information about the individual principal will display on the screen. You may update, delete, or add more principals as needed before moving forward.

b. Business Principal

If you choose Business, you will add another business entity as a principal of your LLC.

b1. Search For The Business

Enter the business name into the search bar.

• The system will display matching entities from the Connecticut Business Database.
• Select the correct one to import its business ALEI and business address.

Alternatively, you can choose Add manually if it does not appear.

b2. Enter Required Details

After selecting the entity, assign a title (Member, Manager, or Managing Member) to indicate the business’s role in your LLC, and provide a valid email address for official communication.

Click Confirm, and the business principal will be added to your list.

b3. Review The Entry

Once the business principal has been added, you can review or adjust your principal list as needed before continuing with the filing process.

11. Additional Documentation (Optional)

This is an optional section that lets you upload any additional documentation that you want to appear on your Connecticut LLC public record. Anything uploaded becomes permanently accessible online, so think carefully before adding files.

Key points:

• You must use PDF files with a maximum size of 8 MB per file.
• Do NOT include sensitive personal data (EINs, SSNs, or driver’s license details).
• This document is part of the permanent public record once submitted.
• Your entire filing may be rejected if a file contains confidential or personally sensitive information.

12. Review & Signature

This is your final checkpoint before your filing goes live. Scan all entered details carefully, looking for spelling and accuracy mistakes. Once submitted, you must pay extra fees and complete extra steps to make changes.

Find the acknowledgment section at the bottom of the Review & Edit page. This is a mandatory legal confirmation stage where your filing goes from the draft stage to being submitted.

Complete the following steps before proceeding:

1. Confirm that the entity being filed is an LLC.
2. Certify that the information you provided is true and accurate under penalty of false statement.
3. Choose or manually add your organizer responsible for submitting your filing.
4. Specify your organizer type (Individual or business).
5. Enter your filer’s name as an electronic signature.

Click “Proceed to payment” once these steps have been completed. This allows you to finalize and submit your LLC registration documents.

13. Payment

You’ll be taken to the payment screen once your acknowledgement section is complete. This is the final step in your Connecticut LLC filing application.

You’ll see a simple fee breakdown:

• Filing fee: $120.
• Total amount: $120.
• Final amount due: $120.

Check the required box acknowledging Connecticut’s refund policy before making your payment. You will NOT be issued a refund once your filing has been accepted. This may only happen in rare cases if your transaction is rejected.

Then, choose your payment method. You’ll typically use a credit card for online filings.

Click “Continue to payment” to submit your fee and officially file your Certificate of Organization. Your filing is now submitted and will appear in your Business.CT.gov account as a completed application.

Now, wait for your LLC approval notice to be issued.

Completing Your Certificate Of Organization Form By Mail

Download the paper Certificate of Organization form by visiting the Connecticut Secretary of the State’s website. Alternatively, you can click the “Download” button on the right-hand side to access it quickly.

To complete your filing, you must send a $120 check made payable to the “Connecticut Secretary of the State.” This should be sent to the Business Services Division’s appropriate address below:

• Mailing address for mail-in submission: Hartford, CT 06115-0470.
• Delivery address for courier services: 165 Capitol Avenue, Suite 1000, Hartford, CT 06106.

Complete the form by typing directly into the PDF file, or print it out and fill it in by hand using blue or black ink.

As it requires the same information, the paper filing process is very similar to the online filing process. I’ve outlined the key steps in this section to keep things simple. You can refer back to my online filing sections if you need more detailed guidance on the filing process.

1. LLC Name

First, complete your filing party details before entering the main details on your form. You’ll state who will be submitting your application and where the state will send the confirmation and filing notices. Therefore, this information must be accurate and up to date.

• You can use an individual or entity acting on behalf of your LLC.
• You do NOT have to use the LLC owner.
• It does NOT have to be a Connecticut resident.

Then, enter your chosen LLC name. This must include an approved business designator such as “LLC” or “L.L.C.” Your name must be unique and distinguishable compared to existing businesses registered in Connecticut’s records.

2. Principal Office Address

In the next section, you need to state the physical address of your LLC’s main office. This identifies where your LLC is officially based for legal and administrative purposes.

3. Mailing Address

Your mailing address informs the Connecticut Secretary of the State where to send official correspondence, including your stamped and approved Certificate of Organization. You can use a P.O. box address for this, unlike your principal office address.

In this section, you should list whether you want to receive government mail at a dedicated business mailbox, a Registered Agent’s mailbox, or a CPA’s office. Make sure you use a reliable and up-to-date address that is regularly monitored.

4. Registered Agent Appointment

In this section, you must appoint a Connecticut Registered Agent with a physical street address. They will receive and process state regulatory notices, legal filings, and service of process on behalf of your LLC.

Choose one option and complete Section 4A or Section 4B:

• Complete Section 4A if your Registered Agent is an individual (Yourself, a friend, or a family member). Provide their full personal details and Connecticut address.
• Complete Section 4B if your Registered Agent is an organization (Commonly a Registered Agent service). Provide their registered information and authorized signature.

5. LLC Member Or Manager Information

Underneath the Registered Agent section, list at least one person who holds a controlling role in your LLC:

• State their personal details (Full name, selected title, business address, and residence address).
• Each address must include the street number, street name, city, state, and ZIP code. Write “None” if no business address exists.
• Attach an extra 8.5” x 11” sheet with their details if you have additional LLC members or managers.

6. Entity Email Address

Next, enter your LLC’s email address (If you have one). Otherwise, tick “None.”

The Connecticut Secretary of the State will send official reminders to this address, including your Periodic Report notices, also widely known as the Annual Report.

You can read my article on The Connecticut Annual Report if you want to learn more about this.

7. NAICS Code

Next to your entity email address, you must enter your LLC’s six-digit NAICS Code. As stated above, this is used to classify your primary business activity for statistical and regulatory needs. Therefore, select a code that best represents your main business activities rather than listing every service offered.

Search the relevant keywords or use the NAICS Code Identification Tools to find the right NAICS code. Select the closest applicable code rather than trying to find a perfect match if your exact business activities don’t appear.

8. Execution/Signature

The last section of your application is used to formalize your filing. You must confirm that all information submitted is accurate and true under penalty of false statement.

1. Enter your filing date using the MM/DD/YYYY format.
2. Print or type the full name of your LLC organizer. Your LLC cannot act as the organizer.
3. The organizer must sign in the signature box after printing the form.

Your document is officially ready for submission once this final section is completed.

Filing Your Certificate Of Organization Using The Digital Mail Online System

Your last filing option acts as a hybrid between the online filing and traditional mail methods. It combines the paper-filing steps with the convenience and tracking when using the online system.

• You must still use your CT.gov account to submit your completed documents.
• You uploaded your completed Certificate of Organization PDF just like a mail filing instead of filling out an online form.

Sign in to your CT.gov account and go to the Business.CT.gov – Submit paper filing page to submit your Certificate of Organization through Connecticut’s digital mail system. The guide for creating an account is below.

Click “Start now” to begin your filing. Then follow the steps below

1. Select A Filling Category

To begin, you must choose a filing category once you’ve accessed the “Submit paper filing” section. This first step determines your entire workflow. Therefore, make sure you don’t pick the wrong option.

Next, choose “Register a business” as you’ll be submitting your Certificate of Organization to form a new LLC. This is the only logical and correct option to use for a first-time business registration using the digital mail system.

2. Provide Your Filing Details

The second section asks you to provide your filing details. On the screen, keep your information simple and correct:

1. Select “Domestic (In Connecticut) if you’re forming a brand-new LLC. Choose “Foreign” if your company already exists in another U.S. state.
2. Select “Limited Liability Company” for the legal structure section.
3. Click “NEXT” to proceed to the section where you’ll need to upload your signed Certificate of Organization.

3. State Your Name Reservation

In the Name reservation section, you’ll be asked one simple question: “Did you already pay to reserve your business name before filing?”

• Choose “Yes” if you already submitted a name reservation application and paid the reservation fee. The system will then link your reserved LLC name to your filing.
• Choose “No” if you haven’t formally reserved a name. Most will choose this option, with the name reservation being optional in Connecticut.

Then, click “NEXT” to continue.

4. Provide Your Connecticut Business Name

Next, type the exact business name that you intend to register when forming your Connecticut LLC. You must include an approved designator, such as “LLC” or “Limited Liability Company.”

5. Filing Upload

For the filing upload section, you need to submit your actual Certificate of Organization and any supporting documents.

First, click “UPLOAD A DOCUMENT” and select a single PDF file from your computer. This PDF must contain your completed and signed Certificate of Organization.

• Make sure that your file is in a scanned PDF format only. You cannot use Word, image files, or saved scans as a JPEG or PNG.
• You can only use a maximum file size of 8 MB. If your file is larger, compress it or rescan at a lower resolution before uploading.
• The system will not accept multiple separate files.

Make sure to double-check that your PDF file’s business name matches exactly what was entered in the previous filing step before selecting your file. Your filing can be rejected for minor differences, such as “LLC” vs. “L.L.C.”

The filing system will show you the file on screen once it’s been successfully uploaded:

1. Open the file using “View” to recheck it.
2. Click “Remove” if anything is wrong to fix the PDF file.

Click “Next” once you’ve confirmed that everything is correct to proceed to the review and edit section.

6. Review And Signature

In the review and edit section, check that your filing details are correct. This includes your business name, business type, legal structure, and the attached Certificate of Organization PDF.

Click “Edit” to fix anything if it’s wrong. Once all entered information is accurate, click “Proceed to payment.”

You can NO longer easily make changes once you go through this filing step. Therefore, ensure you catch your filing mistakes here to prevent delays.

7. Payment Screen

Once you’ve gone past the verification section, you’ll be taken to a payment screen. First, you’ll see a pop-up asking if you want expedited processing for your filing.

• If you choose “YES,” you will need to pay the extra $50 fee, which puts your submission in priority review. Your application will be processed faster by the state.
• If you choose “NO,” your filing will follow the standard timeline with no additional charge.

Underneath, you must confirm your fee summary when proceeding with the standard processing option. You should see a total payable amount of $120. This is the base filing fee required by the State of Connecticut.

An additional $50 will be added if you selected an expedited processing service. This brings your total payment to $170.

Finally, select your payment method (You can use a Credit Card). Then, tick the checkbox to confirm you agree with the terms and conditions.

Click “CONTINUE TO PAYMENT” to complete your payment.

Your filing will officially enter Connecticut’s processing system for review once payment is made.

Approval Time For Your Connecticut Certificate Of Organization

How you receive your approval document depends on your filing method:

• If you file online through Business.CT.gov, your approved Certificate of Organization (Plain copy) will be delivered electronically and sent to the email you provided.
• If you file by mail, your approval comes as an acceptance notice (including your Business ID Number) sent to the mailing address listed on your form.

Overall processing times vary based on the filing method selected, with online options generally processed faster than mail submissions.

1. Online Filing (2–3 Business Days)

When you file your Certificate of Organization online through Business.CT.gov, approval is typically issued within approximately 2 to 3 business days. This method offers the fastest standard processing time and is the recommended option for most filers.

If you select expedited service and pay the additional $50 fee, your filing receives priority handling and is usually processed within 1 business day.

2. Digital Upload (3–5 Business Days)

If you are unable to use the standard online filing system, digital upload is the next best alternative. This method allows you to submit documents electronically but is processed more slowly than direct online filing.

Typical processing times for digital uploads range from 3 to 5 business days. While slower than standard online filing, this option is still significantly faster than traditional mail filing.

You may also request expedited processing for digital uploads. By paying the additional $50 expedite fee, filings are typically processed within 1 business day.

3. Mail Or Hand-Delivery (7–10 Business Days)

If you file your Certificate of Organization by mail or hand delivery, processing generally takes between 7 and 10 business days, not including mailing time. This makes it the slowest filing method available.

Expedited processing is not available for mail or hand-delivered filings. Because of the longer timeline and lack of priority service, this method is generally not recommended unless electronic filing is not possible.

How To Create Your CT.gov Account

You must create a CT.gov account that links to your business before using the online filing and digital upload submission methods.

Alongside being used to register your LLC, your account is the central gateway to manage your Connecticut LLC. This includes submitting filings, tracking progress, and receiving official communication. Setting it up correctly directly impacts the efficiency and potential problems when completing your filings.

Visit the Business.CT.gov – Registration page to set up your account.

On the sign-up page, enter the following necessary information to set up your account:

1. Your first and last name.
2. Create your unique username (This is used to sign in).
3. Your email address (Repeat this for verification and ensure you can access your email).
4. Provide a U.S. mobile number (Optional).
5. Choose your preferred language (English is preselected).
6. Set and confirm your password. It must comply with the required standards.
7. Complete the mandatory fields, then click “Sign Up.”

Once entered, you should see a summary pop-up, allowing you to review and confirm your details. Then, you’ll get a verification screen email with a confirmation code that will be sent to your inbox. Use this code to verify your email, activate your account, and proceed to log in.

Why Does Your Connecticut LLC Need A Certificate Of Organization?

Until your Certificate of Organization is accepted by the Secretary of State, your Connecticut LLC does NOT legally exist. Furthermore, you have no legal and financial protection, usually given when forming an LLC.

These are the main benefits of acquiring your Certificate of Organization.

1. It’s A Non-Negotiable Legal Requirement

The law in Connecticut is strict on this. Under Connecticut General Statutes § 34-247, your LLC only comes into existence once your Articles of Organization have been filed and approved by the Connecticut Secretary of State. Before this, you have no LLC, no legal identity, and no separation between you and your business.

2. Cannot Complete Basic Tax And Licensing Obligations Without It

You cannot complete the fundamental LLC compliance steps for your Connecticut LLC without an approved Certificate of Organization.

You will NOT be issued an Employer Identification Number (EIN) from the Internal Revenue Service (IRS) if your business entity is not legally formed. In this case, you cannot complete payroll, open a business bank account, hire employees, or complete your federal tax filing requirements.

At the local and state levels, your application will not be reviewed until your LLC exists in the state system. This means that whether you’re dealing with general local permits or regulated sectors such as food service, alcohol, transportation, and construction, you cannot complete your compliance requirements.

Without being officially formed, you cannot register for your applicable Connecticut tax accounts or file state tax reports. You face serious fines and penalties for operating without them.

3. You Expose Yourself To Serious Liability And Operational Risk

If your LLC is NOT officially legally recognized, you have:

• No business credibility with vendors and customers.
• No limited liability protection.
• No access to business banking.
• No ability to enter business contracts.
• No ability to hire employees.
• No ability to sign business leases.

Without an approved Certificate of Organization, your LLC does not exist in any meaningful legal and commercial sense.

Connecticut LLC Key Contact Information

You can contact the Connecticut state agencies if you have questions or require assistance regarding your formation application.

I’ve provided their main contact details in the table below:

Frequently Asked Questions