Connecticut LLC Costs 2026: $120 to Form + $80/yr

Connecticut LLC Formation Fee: $120

To form an LLC in Connecticut, you file a Certificate of Organization with the Connecticut Secretary of the State (SOTS). The filing fee is $120 (the same online or by mail) at business.ct.gov. Online filings typically post within 2-3 business days; mailed filings take longer. Expedited 24-hour processing is available online for an extra $50. For the full state overview, see our Connecticut LLC compliance hub.

Your Certificate of Organization must include: your LLC name, the principal office address, the name and address of your Connecticut registered agent, and the names of the organizers. Connecticut allows single-member LLCs and does not require you to list all members publicly.

Connecticut LLC Annual Report: $80, Due January 1 to March 31

Every Connecticut LLC must file an annual report and pay an $80 fee each year. Connecticut uses a fixed annual filing window — the report is due between January 1 and March 31. Unlike many states, the deadline is the same for every LLC and is not tied to your formation anniversary date.

This statewide window was set under Public Act 16-97, and the fee rose to $80 in July 2020. The report is filed online through business.ct.gov, and the SOTS emails a reminder roughly a month before it is due. Our Connecticut annual report guide walks through the filing step by step.

If you do not file, the Secretary of the State can administratively dissolve your LLC, which revokes its authority to transact business in Connecticut and blocks you from getting a certificate of legal existence. To restore the company you file a Combined Certificate of Reinstatement and Annual Report and pay any overdue annual report fees.

Registered Agent Cost in Connecticut

Every Connecticut LLC must designate a registered agent with a physical Connecticut street address. You have two options:

• DIY (Be Your Own Agent): Free — but you must be a Connecticut resident with a physical CT address and be available during normal business hours. Your address becomes public record in the SOTS database.
• Professional Registered Agent Service: $100-$300/year — provides a Connecticut street address, handles receipt of legal documents, maintains privacy for your personal address, and sends you electronic notifications when documents arrive.

Connecticut Taxes for LLCs in 2026

Connecticut LLCs are treated as pass-through entities for state income tax purposes. The LLC itself pays no Connecticut income tax — instead, income passes through to members who report it on their individual Connecticut Form CT-1040.

Connecticut Income Tax Rates (2026)

Connecticut has a graduated income tax with seven brackets ranging from 2.00% to 6.99%. The two lowest rates were cut effective January 1, 2024 — the bottom rate dropped from 3% to 2% and the next bracket from 5% to 4.5%. Most owners with $50,000-$200,000 of income pay a marginal rate between 5.5% and 6.0%, and the top rate of 6.99% applies to single filers with income over $500,000.

Connecticut Sales Tax

Connecticut imposes a 6.35% sales tax on most tangible personal property and many services. If your LLC sells taxable goods or services in Connecticut, you must register with the Connecticut Department of Revenue Services (DRS), collect sales tax, and file regular sales tax returns. Certain items — including most groceries and prescription drugs — are exempt.

No Connecticut Franchise Tax

Connecticut does not impose a franchise tax or minimum annual business tax on LLCs, and the old $250 business entity tax was repealed in 2020. Your only required annual payment to the state (beyond income taxes) is the $80 annual report fee. That compares favorably to Massachusetts, which charges a $500 minimum annual report fee for LLCs.

Connecticut vs. Neighboring States: LLC Cost Comparison

Connecticut is one of the more affordable states in the Northeast for LLC formation and maintenance, especially compared to Massachusetts. Here is how it compares to nearby states:

Foreign LLC Registration Fee in Connecticut

If your LLC was formed in another state but conducts business in Connecticut, you must register as a foreign LLC with the CT SOTS. The Foreign Registration Statement fee is $120 — the same as forming a domestic CT LLC. After registration, foreign LLCs file the same $80 annual report each year (January 1 to March 31). See our Connecticut foreign LLC registration guide for the full process.

You will need: the completed Foreign Registration Statement, a Certificate of Legal Existence (Good Standing) from your home state issued within 90 days, and the name and address of your Connecticut registered agent. Expedited 24-hour processing is available for an additional $50.

Total Connecticut LLC Cost Summary

These figures cover state fees only and do not include federal taxes, accounting fees, business licenses, or industry-specific permits your Connecticut LLC may require.