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Connecticut LLC Certificate of OrganizationA lot goes into the conception and planning of a new business. It is the Connecticut Certificate of Organization that makes the LLC official. Being prepared before sitting down to complete the application will help you finish it efficiently.

First, have all of the required information handy. You will be asked for the following information:

  • Name of the Connecticut LLC
  • Principal office address (PO Box not acceptable)
  • Mailing address (PO Box can be used.)
  • Name and address of registered agent
  • Name and address of individual filing
  • Name and address of manager or member (at least one needed)
  • Email address (for notification of annual report due date)

Second, the cost of filing the Certificate of Organization is $120, so have a credit card or check ready to go. Checks are payable to Secretary of the State.

Finally, processing time is typically between three and five business days for both online and hard copy filing. Expect longer wait times during heavier filing periods. Expedited processing (hard copy only) costs $50 and is completed within 24 hours.


Filing Options

When filing the Certificate of Organization, use one of the three methods below.


In order to complete an online application, you must first set up a user account on the Secretary of State website.


For a hardcopy of the application, click here. The application and a check (payable to Secretary of the State) can be mailed to the following address:

Business Services Division

Connecticut Secretary of the State

P.O. Box 150470

Hartford, CT  06115-0470

In Person

For a hard copy, click on the link above. The application can be filed in the following location:

Business Services Division

Connecticut Secretary of the State

30 Trinity St.

Hartford, CT  06106


Want Help Filing Your CT Certificate of Organization?

If you decide to use your time building your business rather than completing paperwork, but don’t want to spend the money on an attorney, an LLC registration company is a great compromise.

Lots of services are out there but do vary in perks offered, processing times (theirs, not the state’s), and price.

In general, a service will collect and review your information, prepare the documents, and send them to the Business Services Division of the Connecticut Secretary of the State. They will contact you when the Certificate of Organization has been filed.

One additional benefit offered by some services is a free year of registered agent service. Others offer order tracking or notifications of future legal requirements needed with the state.

After reviewing all the top formation services available, we found IncFile and Northwest Registered Agent the best overall options. While neither of them have as high brand power as the industry giant, LegalZoom, both services have great customer support, prices and offer a free registered agent.


(Post Formation Checklist) After LLC Formation

After you have filed the formation documents with the state, it’s important not to overlook a few critical details.


On the federal level, most LLCs do not pay taxes directly to the government. Instead, they report income and losses on the owner’s personal 1040 tax returns. Schedule C is often used for reporting. Unless the LLC chooses to be taxed as a corporation, a single-member LLC is taxed as a Sole Proprietorship and a multi-member LLC is taxed as a Partnership.

Every CT LLC does need a state tax registration number. This application can be submitted either online or by mailing or delivering Form REG-1 to the Connecticut Department of Revenue Services (DRS) at the following address:

Department of Revenue Services State of Connecticut

PO Box 2937

Hartford CT 06104-2937

Using the registration number, LLCs are required to pay a Business Entity Tax (BET), which is a $250 biennial tax.

Your LLC may also be required to pay a sales tax (if the business sells taxable merchandise) or a use tax (if the business purchases taxable merchandise from out-of-state retailers). For businesses with employees, income and unemployment taxes may also be required.

For more information on state taxes in Connecticut, visit the DRS website at or by calling 800-382-9463 (outside the Greater Hartford calling area only) or 860-297-5962.


Not every business needs a license in the state of Connecticut. To determine if your LLC requires licensure, conduct a keyword search on the Connecticut Economic Resource Center website. The cost of the license depends on the trade or occupation.

Local municipalities may also have their own requirements for licenses or permits. For example, many local governments may require a building permit, occupational permit, or health permit. Be sure to check the website of the municipality where your LLC will be located.


After an LLC is formed, an annual report must be filed with the state of Connecticut each year.

Online filing is required unless a waiver is requested. The cost of filing is $20, and the report is processed immediately.

One month prior to the annual report due date, an email will be sent as a reminder. If an LLC does not have an email address on file, a postcard will be sent instead.

If an LLC does not file a report, it risks being dissolved by the state. It also could prevent the LLC from receiving a Certificate of Legal Existence, or good standing.