How To Start an LLC in California
Form a Connecticut LLC in 6 steps: choose a name, appoint a registered agent, file Articles or a Certificate of Organization with the Secretary of State, create an operating agreement, obtain an EIN, and secure required licenses and permits. Follow state naming rules and confirm local license requirements.
Starts at $0 + CT state fees and only takes 5-10 minutes
Last Updated: March 12, 2026
Starting an LLC in Connecticut requires filing the right paperwork with the Connecticut Secretary of State and meeting a handful of state requirements. The process begins with choosing a unique business name, appointing a registered agent, and submitting your Certificate of Organization. From there, you’ll need to draft an operating agreement, obtain an Employer Identification Number (EIN) from the IRS, and secure any licenses or permits your business requires. The six steps below walk you through each part of the process in detail.
Find a unique name for your company. The first step in creating an LLC in Connecticut is coming up with a name for your business. Your limited liability company name must be unique in the state of Connecticut.
The CT Secretary of State website has a search engine that can tell you whether your desired name is available.
If the name you choose is available but you’re not ready to file your Connecticut LLC paperwork, you may want to reserve it with the Secretary of State. The Connecticut Secretary of State allows you to reserve a business name for 120 days for a fee.
An LLC in Connecticut must have a name that ends with the words “Limited Liability Company” or the abbreviations “LLC” or “L.L.C.” to comply with state law. Additionally, “Limited” may be abbreviated as “Ltd.,” and “company” may be abbreviated as “Co.”
According to Connecticut LLC naming guidelines, nothing in the LLC’s name can state or imply that the business’s purpose is different from the stated purpose in the LLC’s Certificate of Organization.
Beyond that, you need to check that your name is unique. As we mentioned earlier, you’ll need to run a Connecticut business name search. It’s also recommended to search your name against the United States Patent and Trademark Office website, and then do another search against the Connecticut trademark database as well. A basic web search is also a good idea.
This way, you can help ensure that your name is unique so your business can stand out.
For the most part, the process for forming a PLLC is similar to forming a standard LLC, but there are a couple nuances to address. One nuance is naming the LLC. For starters, instead of using the designator “LLC” or “limited liability company,” you’ll need to end your name with “professional limited liability company,” “PLLC,” or “P.L.L.C.” instead.
It’s also important to follow any naming guidelines put in place by your industry’s regulatory agency. Different industries can have slightly different requirements for a business name, so please consult with your agency to see if there are any rules you need to follow.
You may also want to check to see if your desired domain name is available. While many top-level domains exist — “.co,” “.net,” etc. — there’s nothing like getting “.com” to give some legitimacy to your business.
Even if the Secretary of State approves your business name, that’s no guarantee that someone else hasn’t already claimed it with a federal or state trademark. To truly check to see if your business name isn’t trademarked is difficult because there’s no central place to check. Some businesses even employ an attorney specializing in trademarks to see if they’re in the clear.
You can take some measures yourself, like searching the trademark database on the United States Patent and Trademark Office website. This can help you determine if someone’s already claimed a federal trademark on the name you want.
State trademarks are applicable only within the borders of a state. To find out if your desired name has been trademarked at the state level, Connecticut has a Trade and Service Mark Records Search page. If you want, you can also apply for your own state trademark by completing an application and paying a fee.
In addition to checking these databases, it’s wise to do extensive internet searches for your business name, including domain names and social media sites.
If you intend to operate your business under a name different from its legal name, you’ll need a DBA or “doing business as” name. A Connecticut DBA is another name to use for your business. They are often used when a company wants to rebrand for a new product line or store. This will also need to be registered with the clerk in the town or city where business is transacted.
Name a registered agent for your business. Connecticut business law requires every LLC to have a registered agent for service of process. Registered agents physically accept correspondence from the Connecticut Secretary of State and any court papers (such as subpoenas) on the company’s behalf.
Your registered agent is an individual or business entity authorized to do business in Connecticut. If the agent is an individual, they must be a resident of the state of Connecticut. In either case, the agent must have a physical street address within the state. A P.O. box won’t do.
Many new LLC owners (called “members” in an LLC) think they should be their company’s registered agent and use their business’s primary location as the registered office address. However, this approach may have unintended consequences.
Some benefits of hiring an outside registered agent service include:
File your LLC paperwork with the state. A Connecticut LLC is a document that, once approved, makes your business a legal LLC in the state. You’ll need to complete the form, pay a filing fee, and submit it to the Secretary of State.
To create your LLC in Connecticut, you’ll need to file a Certificate of Organization with the Connecticut Secretary of State and pay a filing fee. You can submit the paperwork by mail or online. If you file a paper application, processing usually takes seven to 10 business days. However, if the Secretary of State is busy, it could take up to several weeks. If you file online, you’ll typically have your Certificate of Organization processed in two to three days.
To complete the documents, you’ll need to know the following information:
For those who choose to mail their Certificate of Organization, send it to:
Business Service Division, Connecticut Secretary of the State
P.O. Box 150470
Hartford, CT 06115
In some states, PLLCs file a different version of the Certificate of Organization, but that’s not the case in Connecticut. Both PLLCs and LLCs file the same Certificate.
Once you get your physical paperwork back from the state approving your new LLC, you’ll want to keep it in a safe location along with your other important documents, such as your operating agreement, member certificates, contracts, compliance checklists, transfer ledger, etc.
Write your LLC’s operating agreement. Much like the bylaws required by corporations, operating agreements outline the rules and procedures for the management of the LLC. However, unlike corporations, LLCs can do more to customize their internal practices to fit the needs of the business.
If you don’t draft an LLC operating agreement in Connecticut, the background state law applies to your company. Typical concepts in an operating agreement include:
Once it’s completed and signed, the Connecticut LLC operating agreement should be kept in a secure location with other important business formation information. You don’t need to file it with the state.
Get an Employer Identification Number. Your LLC needs an Internal Revenue Service (IRS) Employer Identification Number (EIN) unless your business is a single-member LLC with no employees (and sometimes even then). Plus, you’ll typically need an EIN if you want to open a business bank account or apply for a company credit card.
You can get your LLC’s EIN through the IRS website, by mail, or by fax.
There’s a very good chance that your Connecticut LLC will need at least one license or permit. But it’s not quite as simple as saying, “File this form with the Connecticut Secretary of State.” For this step, you’ll need to dig in and do some research.
For starters, some LLCs need to get federal licenses. For example, suppose you want to start a craft brewery. In that case, you’d need to get a license from the Alcohol and Tobacco Tax and Trade Bureau since you’d be manufacturing and selling alcohol. Meanwhile, aviation businesses would need to get a license from the Federal Aviation Administration. If your LLC involves a heavily regulated activity, there’s a good chance you’ll need a federal license, but it’s your responsibility to research and know for sure.
Next, you’ll have to check state-level licenses. Unlike some states, Connecticut doesn’t have a state-level general business license. But there are other state-level requirements you might have to uphold. For example, if you’re selling tangible goods, rental items, or services that are taxable, you’ll need to get a Sales and Use Tax Permit.
Local licenses are another important category to cover. In Connecticut, municipalities get to set their own licensing requirements. For example, the city of New Haven doesn’t have a general business license, but it does require industry-specific licenses for rooming houses, brokers, street vendors, and more. Meanwhile, Stamford requires permits for signs, trades, and more. There’s a good chance your city or county (or both) has similar requirements.
You may also need to get zoning permits for your location. Similarly, if you’re working out of your home, you may be required to get a home occupation permit. Ultimately, it’s your responsibility to research your local requirements.
Last but not least, you’ll need to research licenses related to your industry or profession. For example, Connecticut requires licenses for health clubs, liquor sales, medical marijuana dispensaries, contracting, and more. Check out the Department of Consumer Protection’s website for a full list. Meanwhile, professionals in regulated industries like law, medicine, and cosmetology will all need to get professional licenses from their industry’s regulatory boards.
Long story short: you’ll need to do plenty of research to ensure you get all of the licenses that apply to your business — your unique industry, services, and business location.
Licensing is extremely important for a PLLC in Connecticut. It’s your responsibility to ensure that everyone who offers your company’s professional service is appropriately licensed at all times. But remember that these professional licensing requirements don’t overwrite your other state and local licensing requirements. You’ll still need to get those licenses, too.
Following the establishment of your LLC in Connecticut, it’s essential to undertake a series of steps to ensure that your business is fully operational and adheres to state regulations. These steps are critical in laying a strong foundation for your business’s success and legal compliance.
Taxes are an unavoidable part of running a business. By default, LLCs and PLLCs are taxed like pass-through entities, meaning that the LLC itself doesn’t pay taxes at the business level. Instead, the owners report their share of the profits on their personal tax returns. Some LLCs can also elect S corporation status or C corporation status to get breaks on self-employment taxes. The luxury of the LLC is that you can choose the option that works best for your business.
In Connecticut, this process repeats on the state level for business income. But there are a few other state tax obligations to consider.
If your company has employees or collects sales tax, you may need to register your LLC with the Connecticut Department of Revenue Services. To see a full list of reasons you may need to register, visit the Department of Revenue Services Registration page. The registration fee depends on which type of business you operate.
Once you’ve secured an EIN, you’ll be able to open a business bank account. Having separate accounts for your business and your personal banking is critical for sorting out your finances at tax time and helps you avoid commingling funds.
Commingling funds can not only make your taxes more difficult, but it could also be used against you if someone takes you to court to challenge whether you and your LLC are truly separate entities (that is, they want to sue you for not just your business assets, but also your personal assets).
Establishing a robust accounting system is key to managing your LLC’s finances. This system will track your revenue and expenses and help in preparing financial statements. It’s important for budgeting, tax preparation, and financial planning.
Keeping accurate and organized financial records will not only help keep you compliant with tax laws but also provide valuable insights into your business’s financial health.
Staying informed about ongoing legal and tax requirements is crucial for maintaining your LLC’s compliance in Connecticut. This includes understanding the state’s taxation requirements, employment laws if you have employees, and any industry-specific regulations.
These laws can change at any time, so it can be helpful to consult with a Connecticut legal professional on a regular basis to stay informed.
Taking these steps diligently after setting up your LLC in Connecticut will help ensure that your business operates efficiently, remains in legal compliance, and is positioned for growth and success.
Each Connecticut LLC must regularly file an annual report with the Connecticut Secretary of State. Your Connecticut annual report comes with a filing fee and must be filed online. You must file the annual report between January 1 and March 31 each year. If you don’t file your annual report in a timely manner, the Connecticut Secretary of State may dissolve your LLC.
When forming an LLC in Connecticut, there are several fees involved.
These fees are subject to change, so it’s always a good idea to check the most current information.
If you’re thinking of forming an LLC in Connecticut, there are actually a couple of different types available, each suited to different business needs.
If you’re a solo dreamer in the Constitution State, then a single-member LLC might be a perfect fit. With this structure, you take charge as the sole owner while also enjoying the liability shield that LLCs offer. Single-member LLCs are treated as disregarded entities for federal taxes unless you elect different treatment, and may need to register with the Connecticut Department of Revenue Services depending on business activities. You’ll need an EIN if you have employees, for certain banking purposes, or meet other criteria, though it’s sometimes optional for single-member LLCs filing as disregarded entities.
If you have one or more friends or family members excited to start a business with you, then a multi-member LLC could be a great way to team up with security. A multi-member LLC helps ensure each member’s input is valued while splitting profits, losses, and responsibilities according to the agreed terms.
A professional limited liability company (PLLC) is made for licensed professionals such as doctors, engineers, and attorneys. It provides liability protection while meeting professional licensing requirements. PLLCs do not shield members from personal malpractice claims but protect against claims made against other members.
A Connecticut LLC isn’t your only option. While the LLC is a popular choice for many small business owners, there are other types to choose from. Here are some business entity types you can consider.
Sole proprietorships are unincorporated business entities owned by a single person. They are easy to start and run (requiring no registration paperwork and minimal upkeep). However, the downside is that sole proprietors lack any personal asset protection. The owner’s personal assets could be compromised in the event of a lawsuit.
Partnerships are similar to sole proprietorships, but they’re owned by two or more people. Like sole proprietorships, traditional partnerships don’t have personal asset protection, but they’re easy to start and run. Partnerships are governed by a partnership agreement.
One quick note: there are different types of partnerships, including limited partnerships, limited liability partnerships, and general partnerships. While some partnerships offer liability protection, not all of them do, and their protections aren’t as robust as LLCs.
A corporation is somewhat similar to an LLC because it offers personal asset protection for its owners. But the real draw of a corporation is that a corporation can raise capital by issuing shares of stock.
Compared to LLCs, corporations make it easier to raise capital, but they require more formal upkeep and ongoing paperwork requirements.
ZenBusiness offers fast, accurate Connecticut LLC formation online, starting at $0. Our services provide long-term business support to help you start, run, and grow your business.
So, whether you’re starting a barbershop in Bridgeford or a dog walking service in Bristol, we can reduce your stress. Let us take care of formation, compliance, and more. That way, you can get back to running your dream business.
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