How to Form LLC in Connecticut

Quick Answer

Forming an LLC in Connecticut requires filing Articles of Organization with the Connecticut Secretary of State. As of April 2026, contact the Secretary of State for current filing fees and processing times. Connecticut LLCs must maintain a registered agent in the state and file annual reports to remain in good standing.

Step-by-Step Formation Process

1. Choose and Reserve Your LLC Name

   • Search the Connecticut Secretary of State’s business database to ensure your desired name is available
   • The name must include “Limited Liability Company” or abbreviations like “LLC” or “L.L.C.”
   • Consider reserving the name for 120 days using Form CONCORD-NR if needed

2. Appoint a Registered Agent

   • Designate a person or business entity to receive legal documents on behalf of your LLC
   • The registered agent must have a Connecticut street address (not a P.O. box)
   • You can serve as your own registered agent or hire a professional service

3. File Articles of Organization

   • Complete Form CONCORD-LLC (Articles of Organization) through the Connecticut Secretary of State
   • Submit online through the CONCORD system or by mail
   • Include required information: LLC name, registered agent details, management structure, and organizer information

4. Obtain an EIN from the IRS

   • Apply for an Employer Identification Number (EIN) through the IRS website
   • This federal tax ID number is required for tax filings and opening business bank accounts
   • The EIN application is free when filed directly with the IRS

5. Create an Operating Agreement

   • Draft an operating agreement outlining ownership structure, management responsibilities, and operational procedures
   • While not required by Connecticut law, an operating agreement provides legal protection and clarity

6. File Initial Report

   • Submit the Initial Report within 30 days of filing your Articles of Organization
   • This report confirms your LLC’s current information and registered agent

Costs Breakdown

Contact the Connecticut Secretary of State for current filing fees and processing times, as these amounts change periodically. Based on data available as of April 2026, specific fee information was not provided in our current database.

Additional potential costs may include:

• Name reservation fee (if applicable)
• Registered agent service fees (if using a professional service)
• Operating agreement preparation costs
• Initial report filing fee

Requirements Checklist

Before filing your Connecticut LLC, ensure you have:

• Chosen an available business name that complies with Connecticut naming requirements
• Identified a registered agent with a Connecticut street address
• Prepared organizer information (name and address of person filing)
• Decided on management structure (member-managed or manager-managed)
• Gathered required documentation and information for Form CONCORD-LLC
• Payment method for filing fees
• Plan for obtaining EIN after formation
• Considered drafting an operating agreement

Tax Implications

Connecticut LLCs face several tax considerations:

State Income Tax: Connecticut imposes personal income tax at rates of 3-6.99% as of April 2026. LLC members report their share of profits and losses on their personal tax returns, as LLCs are pass-through entities by default.

Federal Tax Treatment: The IRS treats single-member LLCs as sole proprietorships and multi-member LLCs as partnerships for tax purposes, unless an election is made for corporate taxation.

Self-Employment Tax: LLC members who actively participate in the business may owe self-employment taxes on their share of profits.

Sales Tax: Connecticut’s base sales tax rate is 6.35% as of April 2026. LLCs engaged in retail sales must register for and collect sales tax.

No Franchise Tax: Connecticut does not impose a franchise tax on LLCs, which can provide cost savings compared to other entity types.

Ongoing Obligations

Connecticut LLCs must fulfill several ongoing requirements:

Annual Report: File an annual report with the Connecticut Secretary of State by the last day of the month in which the LLC was formed. Contact the Secretary of State for current annual report fees.

Tax Filings: Submit required federal and state tax returns according to applicable deadlines. Multi-member LLCs typically file Form 1065 federally and Form CT-1065 with Connecticut.

Registered Agent Maintenance: Maintain a registered agent with a Connecticut address at all times. Update the Secretary of State within 30 days of any registered agent changes.

Record Keeping: Maintain corporate records, including operating agreement, member records, financial statements, and tax documents.

Business License Compliance: Renew any required business licenses or permits according to their respective schedules.

Registered Agent

Connecticut law requires every LLC to maintain a registered agent within the state. The registered agent serves as the official point of contact for legal documents, including lawsuits, tax notices, and government correspondence.

Requirements: The registered agent must be either a Connecticut resident or a business entity authorized to conduct business in Connecticut. The agent must maintain a street address (not a P.O. box) during normal business hours.

Options: You can serve as your own registered agent if you meet the requirements, or hire a professional registered agent service. Professional services provide privacy protection, ensure reliable document receipt, and offer expertise in handling legal documents.

Responsibilities: The registered agent must accept service of process, receive official government notices, and promptly forward all documents to the LLC’s management.

Common Mistakes to Avoid

1. Choosing an Unavailable Name: Always search the Secretary of State database before settling on a name. Similar names may cause rejection or legal issues later.

2. Inadequate Registered Agent Planning: Using your home address as the registered agent address makes that information public record. Consider privacy implications before deciding.

3. Skipping the Operating Agreement: While not legally required, operating agreements prevent disputes and provide liability protection. Don’t assume verbal agreements are sufficient.

4. Missing Filing Deadlines: Late annual reports can result in administrative dissolution. Set calendar reminders for all compliance deadlines.

5. Mixing Personal and Business Finances: Maintain separate bank accounts and clear financial records to preserve limited liability protection.

6. Ignoring Tax Elections: Consider whether S-Corp tax election might benefit your LLC’s tax situation, especially as profits grow.

7. Failing to Obtain Required Licenses: Research industry-specific licensing requirements before beginning operations to avoid penalties or forced closure.

Related Guides

• How to Form LLC in Arkansas: 2026 Step-by-Step Guide
• How to Form LLC in Hawaii: 2026 Step-by-Step Guide
• How to Form LLC in Illinois: 2026 Step-by-Step Guide
• How to Form LLC in Kentucky: 2026 Step-by-Step Guide
• How to Form LLC in Maryland: 2026 Step-by-Step Guide

FAQ

How long does it take to form an LLC in Connecticut?

Processing times vary depending on filing method and current workload. Contact the Connecticut Secretary of State for current processing times, as these can change based on volume and other factors.

Can I form an LLC with just one member in Connecticut?

Yes, Connecticut allows single-member LLCs. You’ll still need to appoint a registered agent and file all required formation documents, but the process remains the same whether you have one member or multiple members.

Do I need an attorney to form an LLC in Connecticut?

While not legally required, consulting an attorney can be beneficial, especially for complex business structures or if you have specific legal questions. Many simple LLCs can be formed without legal assistance using the Secretary of State’s resources.

What’s the difference between member-managed and manager-managed LLCs?

Member-managed LLCs are run directly by the owners (members), while manager-managed LLCs designate specific individuals to handle day-to-day operations. Choose the structure that best fits your operational needs and ownership arrangement.

Can I change my LLC’s registered agent after formation?

Yes, you can change your registered agent at any time by filing the appropriate form with the Connecticut Secretary of State. You must notify the state within 30 days of any registered agent changes.

What happens if I don’t file my annual report on time?

Late annual reports may result in penalties, and continued non-compliance can lead to administrative dissolution of your LLC. If dissolved, you may need to file reinstatement documents and pay additional fees to restore good standing.

Can my Connecticut LLC do business in other states?

Yes, but you’ll need to register as a foreign LLC in each state where you conduct business. This typically involves filing foreign qualification documents and appointing registered agents in those states.

Is a Connecticut LLC right for my business?

LLCs offer liability protection, tax flexibility, and operational simplicity, making them suitable for many small businesses. Consider your specific needs, growth plans, and tax situation when choosing an entity type. Consult with an accountant or attorney for personalized advice.

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This article provides general information for educational purposes only and should not be considered legal or tax advice. Business formation requirements and fees change periodically. Consult with a qualified attorney or accountant for advice specific to your situation and verify current requirements with the Connecticut Secretary of State.