How to Start a Business in Connecticut
Everything you need to form an LLC or Corporation in Connecticut — filing fees, tax rates, and step-by-step instructions.
Steps to Start a Business in Connecticut
Choose Your Business Structure
Decide between LLC, Corporation, S-Corp, Sole Proprietorship, or Partnership. LLCs are the most popular choice in Connecticut for their simplicity and liability protection.
Choose a Business Name
Your business name must be unique in Connecticut. Search the Secretary of State database to check availability. For LLCs, the name must include 'LLC' or 'Limited Liability Company.'
Appoint a Registered Agent
Every Connecticut business needs a registered agent — a person or service with a physical address in Connecticut who receives legal documents on your behalf.
File with the Secretary of State
File your Articles of Organization (LLC) or Articles of Incorporation (Corp) with the Connecticut Secretary of State. Filing fee: $120 for LLC, $250 for Corp.
Get Your EIN
Apply for a free Employer Identification Number (EIN) from the IRS. Takes minutes online at IRS.gov. You'll need this for taxes, banking, and hiring.
Open a Business Bank Account
Separate your business and personal finances. You'll need your EIN, formation documents, and operating agreement. Holdings makes this easy with integrated banking.
Business Entity Types in Connecticut
LLC
Most PopularLimited Liability Company
Most small businesses, freelancers, and startups. Flexible management, pass-through taxation, personal liability protection.
Connecticut filing fee: $120
Corporation
Corporation (C-Corp)
Businesses planning to raise venture capital, go public, or have complex ownership structures.
Connecticut filing fee: $250
S-Corp
S Corporation
Small businesses wanting to reduce self-employment tax while keeping pass-through taxation. Must meet IRS eligibility (≤100 shareholders, US citizens/residents only).
Sole Proprietorship
Sole Proprietorship
Solo freelancers and contractors. No state filing required but offers no liability protection.
Partnership
General Partnership
Two or more people starting a business together. Consider an LLC instead for liability protection.
Nonprofit
Nonprofit Corporation
Organizations with charitable, educational, or religious missions seeking 501(c)(3) tax-exempt status.
Getting an EIN in Connecticut
An Employer Identification Number (EIN) is a 9-digit number assigned by the IRS to identify your business for tax purposes.
Connecticut Business Taxes
| Corporate Tax Rate | 7.5% |
| Personal Income Tax | 3%-6.99% |
| Annual Report Fee | $80 |
Official Connecticut Resources
Frequently Asked Questions
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Start a Business in Other States
Related Resources
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