Form Your Connecticut LLC
Connecticut provides a sophisticated business environment backed by the Connecticut Uniform LLC Act . The state filing fee is $120, filed through the CONCORD business filing portal at business.ct.gov. Connecticut's economy — anchored by insurance (Hartford), finance, healthcare/biotech, and defense/aerospace — creates diverse opportunities for LLC formation.
What's Included through our service
- Certificate of Organization preparation and filing with the Connecticut Secretary of State
- $120 state filing fee paid directly to the state on your behalf
- Registered agent service with a physical Connecticut street address ($99/year, separate service)
- Custom operating agreement template tailored to Connecticut's statutory defaults
- EIN application assistance
- Online dashboard for documents and compliance tracking
Connecticut LLC at a Glance
| Item | Detail |
|---|---|
| Formation document | Certificate of Organization |
| State filing fee | $120 |
| Filed with | Connecticut Secretary of State |
| Filing portal | business.ct.gov (CONCORD system) |
| Our formation fee | our service fee |
| Processing time | 3-5 business days (online) |
| Annual maintenance | $80 Annual Report (due between January 1 and March 31 each year) |
| State sales tax | 6.35% |
| Governing statute | the Connecticut Uniform LLC Act |
| Registered agent | Required — physical CT address |
| Pass-through entity tax (PET) | Optional — SALT cap workaround available since 2018 |
Complete LLC Formation Guide
Our step-by-step formation guide walks you through everything required to form an LLC in Connecticut — from choosing a name through the CONCORD business search to filing your Certificate of Organization at business.ct.gov.
After You're Formed
Once your LLC is active, there are ongoing requirements to maintain good standing — including the $80 Annual Report filed between January 1 and March 31 each year.
Choose the Right Structure
Not sure if an LLC is the best fit? Our comparison guides break down LLCs versus corporations, sole proprietorships, and S-corps under Connecticut law.
Explore LLC Types
From single-member to professional LLCs, learn about the different LLC structures available in Connecticut. Note: Connecticut does not authorize Series LLCs.
Industry-Specific Guidance
Whether you're in insurance, finance, healthcare/biotech, defense/aerospace, or maritime services — our industry guides cover forming an LLC for your field in Connecticut.
Connecticut Tax Overview
Understand your tax obligations as a Connecticut LLC. State income tax ranges from 3% to 6.99%, sales tax is 6.35%, and businesses with gross receipts over $200K may owe the Business Entity Tax (BET) at 0.75%. Connecticut also offers an optional pass-through entity tax (PET) to help bypass the federal SALT cap.
Helpful Guides
Our practical guides cover scenarios like forming an LLC as a non-resident, converting a sole proprietorship, and what to do if you miss your Annual Report deadline.
Filing fees and requirements verified as of May 2026. Check your state's filing authority website for current information.
Ready to Start?
Forming a Connecticut LLC starts with filing a Certificate of Organization through the CONCORD portal. We handle the filing, registered agent designation, and operating agreement on your behalf.