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State guide

Form an LLC in Connecticut

People who actually live or run a business in Connecticut.

Filing fee

$120

Processing time

3–5 business days (online filing)

Annual Report

$80/year

State tax

State personal income tax applies.

Steps to form an LLC in Connecticut

  1. 1

    Choose an LLC name and check it is available

    The name must include "LLC" or "Limited Liability Company" and must not match a business already registered in Connecticut. Search the state's business registry (free) before you file.

  2. 2

    Appoint a Registered Agent in Connecticut

    This is mandatory — a registered agent is a person or company with a physical address in Connecticut that receives legal papers on your behalf. If you don't have an address in the state, you will need to hire a registered agent service.

  3. 3

    File the Certificate of Organization

    Filing fee $120; processing time about 3–5 business days (online filing). You can file online through the Secretary of State's portal or through the registered agent you hire.

  4. 4

    Draft an Operating Agreement

    Connecticut doesn't require you to file this document with the state, but almost every bank and business partner asks for it to open accounts and confirm ownership and the members' responsibilities.

  5. 5

    Get your federal tax ID (EIN)

    Apply directly with the IRS — it is free. Applicants without an SSN/ITIN can still get an EIN by fax or mail, and you need it to open a US bank account and payment platforms.

  6. 6

    Track the Annual Report deadline

    Fee: $80/year. Due: By March 31 every year. Filing late can get your LLC administratively dissolved by the state even if you're still doing business.

FAQ: LLCs in Connecticut

Is Connecticut a good fit for a non-US online seller?+

People who actually live or run a business in Connecticut.

Is USBizViet an LLC formation provider?+

No. USBizViet is an independent content site and an affiliate partner of several LLC formation providers. We may earn a commission when you sign up through links on the site, but the price you pay stays the same.

What if I miss the annual report deadline?+

The state can administratively dissolve your LLC even if the business is still operating — so track the deadline closely or sign up for an email reminder.

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