What happens if I miss Connecticut's March 31 annual report deadline?

Connecticut imposes a $25 late fee for annual reports filed after March 31st with the Connecticut Secretary of the State. If your LLC misses this deadline, you must file Form LLC-1.1 (Annual Report) and pay both the standard $150 filing fee and the $25 penalty fee, totaling $175. Continuing non-compliance triggers administrative dissolution proceedings initiated by the Secretary of the State. Once dissolved, your LLC loses good standing status, meaning you cannot legally conduct business in Connecticut, enter contracts, or sue in state courts. The state may also assess additional penalties and interest charges. Critically, creditors and customers may view your dissolved status as grounds to challenge your liability protections, potentially exposing your personal assets to claims. File Form LLC-1.1 immediately with the Secretary of the State's office at www.ct.gov/sots, even if late, to halt dissolution proceedings and restore compliance status.

How do I file my Connecticut LLC annual report online?

Connecticut LLCs must file their annual report through the Connecticut Secretary of State's online portal at sos.ct.gov. Log in with your business credentials and complete Form LLC-1065, providing current registered agent information, principal place of business, and member details. The $80 filing fee is non-refundable and must be paid via credit card through the secure portal during submission. Your report is due by the last day of the month in which your LLC was formed—missing this deadline triggers a $25 monthly penalty and potential administrative dissolution. The portal generates immediate confirmation once payment processes successfully. This annual filing maintains your LLC's good standing status and legal protection for members. Complete your 2026 filing immediately by logging into the Secretary of State's portal to identify your specific deadline month.

Can I serve as my own registered agent for my Connecticut LLC?

Yes, you can serve as your own registered agent for your Connecticut LLC if you maintain a Connecticut street address (not a PO Box) and are consistently available during business hours to receive legal documents and service of process. However, this requires significant personal commitment. You must respond to all documents within strict timeframes—missing a summons or lawsuit notice could result in a default judgment against your LLC. The Connecticut Secretary of the State's office (which processes all filings) requires your registered agent information on Form LLC-1, and any changes demand a formal amendment filing and associated fees. Most Connecticut LLC owners delegate this responsibility to professional registered agent services ($75–$150 annually) to ensure documents are never missed, maintain personal privacy by keeping home addresses off public records, and gain peace of mind knowing compliance deadlines won't slip through the cracks. If you choose self-representation, establish a reliable mail system and calendar alerts immediately.

What are the total first-year costs for starting an LLC in Connecticut?

Connecticut's total first-year cost for an LLC is $200, consisting of the $120 filing fee for the Certificate of Formation submitted to the Connecticut Secretary of the State and the $80 annual report fee due by June 1st of your first full calendar year of operation. This positions Connecticut $23 below the national average, making it a cost-competitive jurisdiction for LLC formation. The practical implication for owners is significant: you'll pay this $200 upfront investment without hidden state-level formation surcharges common in other states. However, note that this figure excludes optional costs like professional registered agent services (typically $75–$150 annually) or legal consultation fees. To move forward, prepare your Certificate of Formation with the required business information and file it directly through the Secretary of the State's online portal at portal.ct.gov, then set a calendar reminder for your annual report deadline.

Compliance · CT

Connecticut LLC Annual Compliance Requirements (2026)

Everything your Connecticut LLC must do to stay in good standing — annual report deadlines, registered agent rules, and state-specific obligations.

First-Year Total$200

Annual Ongoing$80/yr

vs National Avg- $22.7

By Edmond Hui · Last updated: June 17, 2026

Connecticut offers a business-friendly environment for LLC formation with reasonable costs and straightforward compliance requirements. At $120 for initial filing and $80 for annual reports, Connecticut's total first-year cost of $200 is $23 below the national average, ranking 12th among all states for affordability. The state's annual report deadline of March 31st provides a clear, consistent timeline for LLC owners to maintain good standing. Connecticut's strategic location between New York and Boston, combined with its concentration of financial services, insurance technology, and biotechnology companies, makes it an attractive jurisdiction for entrepreneurs. The state's well-established business infrastructure supports both traditional industries and emerging sectors like InsurTech, where Hartford's century-old insurance cluster is actively partnering with startups to modernize operations. Connecticut's streamlined online filing system through the Secretary of State Portal makes compliance management accessible for first-time LLC owners, while the modest $25 late fee provides reasonable flexibility for busy entrepreneurs who miss the annual deadline.

Annual Report Requirements

Due: March 31

Fee: $80

Frequency: annual

How: Online or mail

Full Connecticut Annual Report Guide →

Registered Agent Requirements

Everything Connecticut LLC owners need to know about registered agent rules, compliance requirements, and choosing the best option for your business.

Connecticut Registered Agent Requirements →

Late Filing Penalties

Penalty: $25 late fee plus potential administrative dissolution

Connecticut Late Fee Guide →

Connecticut-Specific Compliance Considerations

March 31 Annual Report Deadline

Connecticut requires all LLCs to file annual reports by March 31st each year with an $80 fee. Missing this deadline triggers a $25 late fee and potential administrative dissolution if left unresolved.

Online Filing Through State Portal

Connecticut provides a user-friendly Secretary of State Portal for both initial LLC formation and ongoing compliance. The digital system streamlines the annual report process and payment of required fees.

No Publication Requirement

Unlike some northeastern states, Connecticut does not require LLCs to publish formation notices in newspapers. This eliminates additional costs and simplifies the startup process for new business owners.

Registered Agent Mandate

All Connecticut LLCs must maintain a registered agent with a Connecticut address for service of process. This requirement ensures reliable communication channels between the state and your business.

Business-Friendly Tax Structure

Connecticut offers competitive business tax rates and incentives, particularly for companies in key sectors like financial services, biotechnology, and insurance technology. The state actively supports business growth through various economic development programs.

Frequently Asked Questions

Edmond Hui · Founder, MyStateLLC

Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.