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How to start an LLC in Connecticut

Every step to form your LLC in Connecticut, with the state's fees and the official page for each. Checked against the state's own pages on September 30, 2026.

Filing fee
$120
Regular report
$80
What you file
Certificate of Organization
Where
The Connecticut Secretary of the State

Get the free checklist It follows these steps with you, for your business, and keeps track of what's done.

What an LLC costs in Connecticut

Filing Certificate of Organization with the Connecticut Secretary of the State$120
The regular report that keeps it in good standing$80
An EIN from the IRSFree
A registered agentFree if you're your own; a service charges a yearly fee

The state's fees only. Card or handling fees, a registered agent service, local licenses and taxes come on top where they apply. Checked against official sources on September 30, 2026. It's general information, not legal or tax advice.

Step by step

In the order most owners do them. Each step says where it happens and links to the official page.

  1. With the state

    Check your name is free

    Search the Connecticut Secretary of the State's business records to check no business already uses your name, or one too close to it. An LLC's name must also end with "LLC" or a similar ending.

    Search business names (opens the official site)

  2. Your records

    Choose a registered agent

    Connecticut's registered agent must agree to serve: for a corporation, the agent signs the appointment, and naming an agent for an LLC states that the agent has consented. The agent can be a person who lives in Connecticut or a business entity formed in Connecticut or registered to do business there.

  3. With the state

    File your Certificate of Organization

    File it with the Connecticut Secretary of the State, online with a Business.CT.gov account or on paper. The state's fee is $120. Once it's filed, your business exists.

    File online (opens the official site)

  4. Your records

    Write an operating agreement

    It sets out who owns the LLC, how decisions are made and what happens if someone leaves. It isn't filed with the state: keep it with your records. A lawyer can help you write one.

  5. With the IRS

    Get an EIN from the IRS

    An Employer Identification Number is your business's tax number, for taxes, hiring and a bank account. Apply once your Certificate of Organization are filed. It's free from the IRS: with a Social Security number or ITIN, you can apply on the IRS's own site and get it at once. Watch out for look-alike sites that charge for it.

    Apply for an EIN on IRS.gov (opens the official site)

  6. With the state

    Register for state taxes

    If you'll sell, rent or lease goods or taxable services, register with the Connecticut Department of Revenue Services on myconneCT for a Sales and Use Tax Permit; the fee is $100. Employers also withhold Connecticut income tax from wages, registering with the Department of Revenue Services, and register with the Connecticut Department of Labor for unemployment insurance tax.

    Register for state taxes (opens the official site)

  7. City or county

    Check local licenses and permits

    Connecticut's licenses depend on your line of work: the Department of Consumer Protection licenses trades such as real estate, construction and retail, and other state agencies license other businesses. The New Business Checklist on Business.CT.gov lists what applies. Your town may need its own permits or zoning approval.

    Find your local requirements (opens the official site)

  8. Your records

    Open a business bank account

    Keep the business's money apart from your own: it keeps your records clear at tax time, and keeps the LLC separate from you. Banks usually ask for your filed Certificate of Organization and your EIN.

  9. With the state

    Put the yearly report in your calendar

    Every Connecticut LLC files an annual report with the Secretary of the State, online, between January 1 and March 31 each year, starting the year after it's formed. The fee is $80. The state can dissolve an LLC that doesn't file.

    About annual reports (opens the official site)

Questions about an LLC in Connecticut

How much does it cost to start an LLC in Connecticut?

The state's fee to file Certificate of Organization is $120. To stay in good standing, it also files a regular report, which costs $80. An EIN from the IRS is free.

Does Connecticut require a yearly report for an LLC?

Yes. Connecticut asks every LLC for a regular report to stay in good standing. It costs $80, and the step below says when it's due and where to file it.

Can I form an LLC in Connecticut myself?

Yes. You file Certificate of Organization with the Connecticut Secretary of the State and pay the state's fee, and the steps above show where. You don't need a lawyer, though one can advise on your situation. PressUp's free checklist follows these steps with you.

Is this legal or tax advice?

No. PressUp isn't a law firm or an accountant. This guide is general information from Connecticut's official pages, checked on September 30, 2026. For advice about your own situation, ask a lawyer or an accountant.

Where this comes from

Connecticut's official pages, read on September 30, 2026:

LLC guides for other states