Connecticut LLC Formation

Start an LLC in Connecticut — $120 State Fee, No Publication Requirement

Connecticut is one of the wealthiest and most strategically located states in the US — positioned between New York City and Boston, home to a thriving financial services, insurance, biotech, and defense industry ecosystem. With direct access to major Northeast markets, a highly educated workforce, and a straightforward LLC formation process, Connecticut is a strong choice for entrepreneurs in the Constitution State. Brendat handles your Certificate of Organization, EIN, registered agent, and all compliance.

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Step-by-step guide

How to Form an LLC in Connecticut

Six clear steps — no publication requirement, $80/year annual report. Connecticut calls its formation document a Certificate of Organization. Brendat handles everything.

Choose a Name for Your Connecticut LLC

Your Connecticut LLC name must be unique among all businesses registered with the Connecticut Secretary of State and must include a required designator.

Connecticut Naming Rules:

Must include: "Limited Liability Company," "LLC," or "L.L.C."
Cannot use: Words implying a government agency (e.g., "FBI," "State Department")
Restricted words: "Bank," "Insurance," "University" require additional approval
Must be distinguishable: From all existing Connecticut business names in the SOS database

Name Reservation Available

You can reserve your Connecticut LLC name for 120 days with the CT SOS for $60. Brendat checks name availability before filing your Certificate of Organization.

Appoint a Connecticut Registered Agent

Every Connecticut LLC must designate a registered agent — an individual or company with a physical Connecticut street address — to receive legal documents and official state notices during regular business hours.

Who can be your registered agent?

Yourself: Must have a physical Connecticut address and be available during business hours
A trusted individual: Any Connecticut resident with a physical address
A professional service: Like Brendat — keeps your personal address off public records

Brendat provides registered agent service in Connecticut

Our Connecticut address is listed on your Certificate of Organization. Included in Standard and Premium packages.

File Certificate of Organization with the Connecticut Secretary of State

Connecticut calls its LLC formation document a Certificate of Organization — filed with the Connecticut Secretary of State via the Connecticut Business One Stop (CBOS) online portal or by mail.

Method	Fee	Processing Time
Online via CBOS portal	$120	5–7 business days
By Mail	$120	4–6 weeks
Expedited (same day)	$120 + $50	Same business day

No publication requirement — unlike neighboring New York

Connecticut does not require LLCs to publish a formation notice in any newspaper. Once your Certificate of Organization is approved, your LLC is fully formed — no extra steps or costs.

Create an Operating Agreement

Connecticut does not legally require an operating agreement, but it is strongly recommended for all Connecticut LLCs. It establishes ownership, profit sharing, and management rules and protects your liability shield.

Your operating agreement should cover:

Ownership structure: Each member's percentage and capital contribution
Profit distribution: How and when profits are divided
Management: Who makes decisions and how voting works
Member changes: Process for adding or removing members
Dissolution: Steps to close the LLC if needed

Included in Brendat Standard and Premium

Brendat provides a professionally drafted Connecticut operating agreement with your formation documents.

Get Your EIN (Employer Identification Number)

An EIN is your LLC's federal tax ID — required to open a business bank account, hire employees, and file taxes. You apply through the IRS for free.

US residents: Apply free online at IRS.gov — instant approval
Non-US residents: Apply by fax using IRS Form SS-4 — 4–6 weeks
Brendat handles this: Included in Standard and Premium packages

Open a business bank account right after

With your EIN and Certificate of Organization, open a dedicated Connecticut business bank account to keep finances separate.

File Your Connecticut Annual Report

Connecticut LLCs must file an annual report every year with the Connecticut Secretary of State to stay in good standing. At $80/year due March 31, it's a straightforward annual requirement.

Annual report fee: $80/year
Due date: March 31 every year
Filing: Online via the Connecticut CBOS portal
Late penalty: $50 late fee + potential loss of good standing

March 31 Deadline — Don't Miss It

Connecticut's annual report is due March 31 every year. A $50 late fee applies if missed. Brendat sends reminders in March so you never miss the deadline.

Transparent pricing

How Much Does a Connecticut LLC Cost?

Full transparent breakdown — no surprises.

State Filing Fee

$120

One-time Certificate of Organization fee paid to the Connecticut Secretary of State

Annual Report Fee

$80/yr

Filed every year by March 31. $50 late fee if missed

Publication Requirement

No newspaper publication requirement — unlike neighboring New York ($300–$2,000+)

Registered Agent

Included in Brendat Standard & Premium packages. Every CT LLC must maintain a registered agent

EIN (Federal Tax ID)

Free from the IRS. Included in Brendat Standard & Premium packages

Operating Agreement

Included in Brendat Standard & Premium packages

Total with Brendat Standard Plan

$149 + $120 state fee

$149 Brendat + $120 CT state fee · Annual report $80/year from year 2 · No publication cost

Choose your plan

Connecticut LLC Formation Packages

All packages include accurate, state-specific filing. Pick what fits your needs.

Basic

Brendat service fee

+ $120 Connecticut state fee

Get Started Free

Certificate of Organization filed
Name availability check
Email support
Digital copy of filed documents

Standard

$149

Brendat service fee

+ $120 Connecticut state fee

Start for $149 →

Everything in Basic
EIN / Federal Tax ID
Operating Agreement
Registered Agent (1 year)
March 31 annual report reminders
Priority processing

Premium

$299

Brendat service fee

+ $120 Connecticut state fee

Get Premium

Everything in Standard
Business bank account setup
Compliance calendar & reminders
Annual report filing (year 1)
Dedicated account manager
Phone & priority support

State Comparison

Is Connecticut the Right State for Your LLC?

Connecticut is best if you live or operate there. Here's how it stacks up against neighboring states.

Feature	Connecticut	New York	Massachusetts	Rhode Island
State Filing Fee	$120	$200	$500	$150
Annual Report Fee	$80/yr	$9 biennial	$500/yr	$50/yr
Publication Required	None	Yes ($300–$2,000+)	None	None
State Income Tax	3%–6.99%	4%–10.9%	5% flat	3.75%–5.99%
Processing Time	5–7 days	~7 days	3–5 days	~5 days
Best For	CT businesses	NY businesses	MA businesses	RI businesses

Connecticut vs Massachusetts — significantly lower costs

Connecticut's $120 filing fee and $80/year annual report are dramatically cheaper than neighboring Massachusetts ($500 + $500/year). For businesses near the CT-MA border, Connecticut can save thousands of dollars in formation and ongoing costs.

Why choose us

Why 10,000+ Entrepreneurs Choose Brendat

Fast Filing

We submit your Connecticut Certificate of Organization within 1 business day of your order. Standard processing takes 5–7 business days — same-day expedited available for $50 extra.

100% Accuracy Guarantee

Every filing is reviewed before submission. If the Connecticut SOS rejects your documents due to our error, we fix it at no charge.

Privacy First

Your home address stays off the public record. We list our Connecticut registered agent address on all your formation documents.

March 31 Reminders

Connecticut's annual report is due March 31 every year. We send reminders in March so you never miss the deadline or the $50 late fee.

Non-US Residents Welcome

No citizenship or US residency required. We assist international entrepreneurs with the full process including EIN filing via IRS Form SS-4.

Real Support

Reach our team at (303) 246-8693 or by email. Plain English answers — no jargon, no runaround.

Our reviews

What Our Connecticut LLC Customers Say

Patricia L.

Consulting LLC, Hartford CT

"I was comparing Connecticut vs Massachusetts for my LLC — Brendat showed me the cost difference clearly. Went with Connecticut and saved hundreds. Approved in 6 days!"

Robert C.

Financial Services LLC, Stamford CT

"Brendat set up my Stamford financial services LLC quickly and professionally. The registered agent service is essential for keeping my home address private. Highly recommend!"

Dr. Amy K.

Biotech LLC, New Haven CT

"The March 31 annual report reminder was super helpful. Brendat handled my New Haven biotech LLC formation from start to finish — fast, accurate, and great value."

Common questions

Connecticut LLC — Frequently Asked Questions

Answers to the most common questions about forming and running an LLC in Connecticut.

Still have questions?

(303) 246-8693

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

The Connecticut state filing fee is $120 (Certificate of Organization). Brendat's service starts at $0 (Basic) or $149 (Standard). Total first-year cost with Standard is $269. Connecticut's annual report is $80/year due March 31 from year 2. No publication requirement means no additional newspaper costs.

What is Connecticut's annual report fee for LLCs?

Connecticut LLCs must file an annual report for $80 every year by March 31. A $50 late fee applies if missed. The report is filed online via the Connecticut Business One Stop (CBOS) portal. Brendat sends reminders in March before the deadline every year.

Does Connecticut require newspaper publication for LLCs?

No. Connecticut does not require LLCs to publish a formation notice in any newspaper. Once your Certificate of Organization is approved by the Connecticut Secretary of State, your LLC is fully formed — no publication steps needed. This is a significant advantage over neighboring New York, where publication can cost $300–$2,000+.

What is Connecticut's income tax rate for LLCs?

Connecticut has a graduated personal income tax ranging from 3% to 6.99%. For single-member LLCs and multi-member LLCs taxed as pass-throughs, income flows to members' personal returns at these graduated rates. The 3% rate applies to the first $10,000 of income for individuals.

What is Connecticut's Certificate of Organization?

Connecticut calls its LLC formation document a Certificate of Organization — not "Articles of Organization" as most other states use. It is filed with the Connecticut Secretary of State via the Connecticut Business One Stop (CBOS) online portal. Brendat prepares and files the correct Connecticut formation document in all packages.

Can a non-US resident form a Connecticut LLC?

Yes. There is no US citizenship or residency requirement to form a Connecticut LLC. Non-residents need a registered agent with a physical Connecticut address (Brendat provides this). For your EIN, non-residents must apply by fax using IRS Form SS-4. Brendat assists with this complete process.

Ready to Start Your Connecticut LLC?

No publication requirement, $120 to form, $80/year to maintain. Brendat handles your Certificate of Organization, EIN, registered agent, and March 31 annual report reminders.

Form My Connecticut LLC

$149 + $120 CT fee · No publication · 100% accuracy guarantee