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How to Start an LLC in Connecticut in 2025: A Complete Step-by-Step Guide

Starting a business can be a thrilling yet overwhelming journey. One of the most popular business structures in the U.S. is the Limited Liability Company (LLC), and Connecticut is no exception. An LLC offers the flexibility of a partnership with the protection of a corporation, making it an ideal choice for many entrepreneurs.

Whether you’re a solo business owner or working with partners, forming an LLC in Connecticut provides several benefits, including personal liability protection, tax flexibility, and fewer formalities compared to other business structures.

Creating an LLC in Connecticut is a relatively simple process, but it’s important to understand each step to ensure that your business is set up correctly from the start. This guide will walk you through everything you need to know about forming an LLC in Connecticut, from selecting a business name to filing your Certificate of Organization.

In 2025, the process remains straightforward and user-friendly, making it accessible for both new and seasoned business owners. You’ll learn how to choose the right name for your LLC, hire a registered agent, create an operating agreement, and obtain your EIN (Employer Identification Number). You’ll also get the inside scoop on what happens after your LLC is approved, including maintaining your LLC’s good standing with the state and managing taxes.

The goal of this guide is to simplify the process and make it as clear as possible so that you can confidently establish your LLC and start your business without unnecessary confusion or delays. If you’re ready to take the first step toward launching your Connecticut LLC, keep reading. We’ll break down the process for you, step by step, in easy-to-understand language.

Steps to Forming an LLC in Connecticut

1. Search Your LLC Name

One of the first steps in forming your LLC in Connecticut is choosing a unique name for your business. The name must meet certain legal requirements to be approved by the state. Here’s what you need to know:

  • Incorporation Requirements: The name of your LLC must include the phrase “Limited Liability Company,” “LLC,” or “L.L.C.” to make it clear that your business is an LLC. For example, “Smith Consulting LLC” is a valid name.
  • Uniqueness: Your LLC name must be distinguishable from other registered businesses in Connecticut. This means that it cannot be the same or too similar to an existing business name.
  • Restricted Words: Certain words are restricted or require additional documentation. Words like “bank,” “insurance,” or “trust” are generally restricted, and using them may require approval from the appropriate regulatory agencies.
  • Availability Search: To make sure your name is available, you can search the Connecticut Secretary of State’s online business database. This will tell you if the name you want is already taken. If it is, you will need to brainstorm a new name or make slight modifications.
  • Name Reservation (Optional): If you’re not quite ready to form your LLC but want to secure your name, you can reserve the name for 120 days by filing a name reservation application and paying a fee. This step is optional but can be useful if you need some time to plan.

Once you’ve confirmed that your name is available, you can move forward with the LLC formation process.

2. Choose a Connecticut Registered Agent

A registered agent is a person or business entity that is responsible for receiving official legal and tax documents on behalf of your LLC. In Connecticut, your registered agent must:

  • Be a Connecticut resident or a business entity authorized to conduct business in Connecticut.
  • Have a physical address (not a P.O. Box) in the state of Connecticut.
  • Be available during normal business hours to receive and forward important legal documents, including lawsuits, tax notices, and government correspondence.

You have three options when selecting a registered agent:

  1. You as the Registered Agent: You can act as your own registered agent if you have a physical address in Connecticut and are available to receive documents during business hours.
  2. A Third-Party Registered Agent: Many LLC owners choose to hire a professional registered agent service to ensure that they comply with state laws and maintain privacy. These services usually charge an annual fee and often offer additional features such as mail forwarding and document scanning.
  3. Another Person or Entity: You can designate another individual or entity as your registered agent. The person must meet the state’s requirements and be available at the designated address during normal business hours.

Choosing the right registered agent is crucial because if you miss important legal documents, it can lead to penalties or even the dissolution of your LLC.

3. File an LLC Certificate of Organization

The next step in forming your LLC is to file a Certificate of Organization, also known as Articles of Organization, with the Connecticut Secretary of State. This document formally establishes your LLC in the state and includes key information about your business, including:

  • LLC Name: The legal name of your LLC.
  • Registered Agent Information: The name and address of your LLC’s registered agent.
  • Business Address: The physical address where your LLC operates or conducts business.
  • Management Structure: Indicate whether your LLC will be managed by members (owners) or managers (appointed individuals).
  • Email Address: A valid email address for your LLC’s primary contact.

The Certificate of Organization must be submitted either online or by mail, and there is a filing fee of $120. If you file online, your LLC will generally be processed more quickly. The form asks for basic information, but it’s important to ensure that all details are accurate before submitting it. Filing errors can cause delays or even rejections.

Once filed and approved, the Connecticut Secretary of State will issue a Certificate of Organization, officially recognizing your LLC as a legal business entity in the state.

4. Create an LLC Operating Agreement

Although not required by the state, it is highly recommended that your LLC has an Operating Agreement. This is a legal document that outlines the internal workings of your LLC, including the roles and responsibilities of the members or managers, how decisions will be made, how profits and losses will be distributed, and what happens in the event of a dispute or dissolution.

An Operating Agreement is particularly important for multi-member LLCs. It helps clarify each member’s rights and obligations and can prevent conflicts down the road.

Your Operating Agreement should address several key elements:

  • Ownership Interests: A breakdown of each member’s ownership percentage.
  • Management Structure: Whether the LLC will be managed by members or managers.
  • Profit Distribution: How profits and losses will be divided among members.
  • Voting Rights: How decisions will be made within the LLC.
  • Dissolution: What will happen if the LLC needs to be dissolved.

It’s worth noting that the Operating Agreement is an internal document. It does not need to be filed with the state but should be kept with your LLC records.

5. Get an EIN for Your LLC

An Employer Identification Number (EIN) is a unique nine-digit number assigned by the IRS for tax purposes. Your LLC will need an EIN if:

  • You have employees.
  • You plan to open a business bank account.
  • You intend to file certain taxes for your LLC.

Even if your LLC doesn’t have employees, getting an EIN is a good idea. It separates your personal and business finances, helping maintain liability protection.

Obtaining an EIN is a free and simple process. You can apply online on the IRS website and receive your EIN instantly.

What to Do After Your LLC Is Approved

Once your LLC is officially registered, there are a few essential tasks to handle. These steps will ensure that your LLC stays in good standing with the state and operates legally.

Open a Business Bank Account

One of the first things you should do after forming your LLC is to open a separate business bank account. This step is important for maintaining liability protection. Mixing personal and business funds could jeopardize your LLC’s legal protection, and it’s essential for tax and accounting purposes.

To open an account, you’ll typically need the following documents:

  • Certificate of Organization
  • Operating Agreement
  • EIN

Most banks will require these documents to establish your business account.

Apply for Necessary Business Licenses and Permits

Depending on your type of business and location, you may need to obtain local or state licenses and permits. For example, restaurants, contractors, and healthcare professionals are often subject to specific licensing requirements.

Check with the local city or county offices, as well as the Connecticut Department of Consumer Protection, to determine the specific licenses or permits your business may need.

File an Annual Report

Connecticut requires LLCs to file an annual report each year. The report must be filed between January 1 and March 31, and the filing fee is $80. This report provides the state with updated information about your LLC, such as its address, members, and Registered Agent.

To file the annual report, you can log into your Business.CT.gov account and submit the form online. Missing the deadline or failing to file the report will result in penalties or even the dissolution of your LLC, so make sure to file it on time every year.

Maintain Good Standing

To keep your LLC in good standing in Connecticut, you must meet several ongoing requirements:

  • File Annual Reports: As mentioned earlier, your LLC must file an annual report every year.
  • Pay Taxes: You’ll need to stay on top of any state taxes your LLC is required to pay. If you have employees, you’ll also need to handle payroll taxes.
  • Update Registered Agent Information: If your Registered Agent changes, you’ll need to notify the state to keep your records up to date.

How Much Does It Cost to Start an LLC in Connecticut?

Forming an LLC in Connecticut involves several costs, both initial and ongoing. Below is a breakdown of the fees you can expect:

ItemCost
Certificate of Organization$120
Name Reservation (optional)$60
Registered Agent Service (optional)$50–$300/year
Annual Report$80/year

How Will My LLC Be Taxed?

By default, a single-member LLC is treated as a disregarded entity for tax purposes, meaning it is taxed like a sole proprietorship. A multi-member LLC is taxed as a partnership. However, LLCs have the option to elect different tax structures, such as:

  • S Corporation Tax Election: LLCs can file to be taxed as an S Corporation, which can help avoid double taxation if your LLC generates significant income.
  • C Corporation Tax Election: An LLC can also elect to be taxed as a C Corporation, which is often suitable for larger businesses looking to retain earnings.

It’s essential to consult with a tax professional to determine the best tax election for your LLC.

Conclusion

Starting an LLC in Connecticut is an exciting step toward building your business. By following these clear, step-by-step instructions, you can form an LLC with minimal hassle and get your business up and running. From choosing your LLC name to maintaining good standing with the state, this guide will help you navigate the process with confidence. Take the time to properly set up your LLC, and you’ll be well on your way to success in Connecticut.

FAQs

Can I form an LLC in Connecticut online?

Yes, you can file your LLC’s Certificate of Organization online for faster processing.

Do I need a business license in Connecticut?

It depends on the nature of your business and location. Check with local authorities and the state Department of Consumer Protection.

What happens if I don’t file an Annual Report?

Failure to file your annual report can result in penalties and the potential dissolution of your LLC.

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