How to Start a Business in Connecticut

September 26, 2025

Homebase Team

10 Minutes

TL;DR

  1. 7 Steps to Starting a Business in Connecticut: Choose structure, register name, get EIN and tax accounts, obtain licenses, open banking, get insurance, set up payroll.

  2. Connecticut Business Filing: Online processing takes 2-3 days, expedited service adds $50, annual reports cost $80 for LLCs.

  3. Connecticut Business Licenses: Professional licenses range $76-$1,850, municipal permits vary across 169 towns, trade names cost $50 per town.

  4. Best Connecticut Cities: Stamford offers fintech opportunities, New Haven provides Yale biotech ecosystem, Hartford features insurance industry dominance.

  5. Connecticut Business Costs: Service businesses need $5,000-$15,000, retail requires $25,000-$50,000, restaurants need $50,000-$150,000 for equipment and setup.

  6. Connecticut Hidden Costs: Weekly payroll compliance adds administrative costs, $250 Business Entity Tax every two years, workers' comp ranges 0.5%-15%.

  7. Connecticut Business Support: Small Business Boost Fund offers $5,000-$500,000 loans, free SBDC counseling, CT Innovations provides venture capital.

  8. Connecticut 30-Day Business Timeline: Week 1 formation and permits, Week 2 licensing and insurance, Week 3 banking and payroll, Week 4 marketing launch.
  9. Connecticut Success Factors: Despite higher costs, educated workforce and strategic NYC-Boston location create opportunities for prepared entrepreneurs with proper planning.

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Starting a business in Connecticut might feel overwhelming when you see it ranked second worst nationally for new businesses, but here's the reality—381,129 small businesses thrive here, employing nearly half the state's workforce. 

You'll face higher costs and more regulations than neighboring states, but Connecticut's educated workforce, strategic location between Boston and NYC, and comprehensive funding programs ranging from $5,000 to $500,000 create real opportunities for prepared entrepreneurs.

7 Steps to Starting a Business in Connecticut

  1. Choose your business structure
  2. Register your business name
  3. Get your EIN and tax accounts
  4. Obtain licenses and permits
  5. Open a business bank account
  6. Get business insurance
  7. Set up accounting and payroll

1. Choose your business structure

Your business structure determines your taxes, liability, and paperwork requirements in Connecticut. LLCs cost $220 total to form (including the mandatory $100 Sales and Use Tax Permit), while corporations require similar fees plus additional reporting.

LLC Benefits: Personal asset protection, Pass-Through Entity Tax of 6.99% with an 87.5% credit on personal returns, and simpler compliance than corporations.

Corporation Trade-offs: 7.5% corporate tax rate but access to venture capital and stock options for your team.

Sole Proprietorship Reality: No formation fees but unlimited personal liability—risky for businesses with any physical locations or employees.

2. Register your business name

Connecticut requires checking name availability through the Secretary of State's Business Name search tool before filing. Your LLC name must include "Limited Liability Company" or abbreviations like "LLC."

DBA Requirements: If operating under a different name, file a Trade Name Certificate for $50 in each town where you do business.

Domain Check: Secure your .com domain immediately—even if the business name is available in Connecticut, the web address might not be.

3. Get Your EIN and tax accounts

Your federal EIN is free from the IRS and takes minutes online. Connecticut requires additional registrations that many entrepreneurs miss.

Connecticut Tax Registration: Register through My CT Business for state withholding, unemployment insurance, and that mandatory $100 Sales and Use Tax Permit.

Business Entity Tax: LLCs and S-corps pay $250 biennially, assessed every two years regardless of profitability.

4. Obtain your licenses and permits

Your licensing needs vary dramatically by industry and location—Hartford, New Haven, and Stamford each have different requirements.

State Licenses: Professional licenses range from $76 for Engineer-in-Training to $1,850 for liquor manufacturing through the Department of Consumer Protection.

Municipal Permits: Each of Connecticut's 169 towns maintains individual zoning and permit requirements—Bridgeport's differ from Waterbury's.

Home-Based Restrictions: Many residential zones prohibit customer visits or signage, especially in Fairfield County's suburban towns.

5. Open your business bank account

Connecticut banks require your EIN, formation documents, and operating agreement to open accounts. Compare fees across local and national banks.

Local Options: Webster Bank and People's United understand Connecticut businesses and offer SBA lending.

Credit Building: Establish business credit immediately—you'll need it for Connecticut's competitive commercial real estate market.

6. Get business insurance

Connecticut requires specific coverage depending on your business type, and data breach insurance becomes critical with average small business breach costs hitting $120,000.

Workers' Comp: Mandatory with your first employee, rates vary by industry from 0.5% to 15% of payroll.

General Liability: Not legally required but essential—especially in Connecticut's litigious environment.

7. Set Up accounting and payroll

Connecticut's minimum wage of $15.69 and weekly payroll requirements demand proper systems from day one.

Payroll Compliance: Weekly payment required for most employees, with specific rules for tipped workers earning $8.23 (bartenders) or $6.38 (restaurant staff).

Record Keeping: Connecticut requires three years of employment records including wages, hours, and overtime calculations.

How to get a business license in Connecticut?

Getting your Connecticut business license involves state-level professional licensing through the Department of Consumer Protection and local permits from your city or town.

Processing takes 2-3 business days online or 3-4 weeks by mail
, with expedited service available for an extra $50. Most businesses need multiple licenses—your industry's state license plus local zoning and health permits.

What are the best cities to start a small business in Connecticut?

The best Connecticut cities for small businesses balance opportunity with costs, and your choice depends on your industry and target market.

Hartford offers Class A lease rates at $21.15 per square foot versus NYC's $82.13
, while Stamford hosts 10 of the world's 20 largest hedge funds creating massive B2B opportunities.

Stamford: Connecticut's tech and finance hub with direct Metro-North access to NYC, home to fintech startups that raised over $3 billion.

New Haven: Yale's presence drives this biotech powerhouse where life sciences startups raised $3.2 billion in early funding.

Hartford: The state capital maintains its insurance industry dominance while offering lower costs than coastal cities.

Norwalk: Strategic Fairfield County location with growing creative industries and lower costs than neighboring Stamford.

West Hartford: Affluent suburb with strong retail performance and educated customer base perfect for service businesses.

Waterbury: Lowest costs among major cities with growing healthcare sector and downtown revitalization efforts.

Pro-tip: Visit your target city's economic development office—they'll provide market data, available properties, and often introductions to other business owners in your industry.

How Much Money Do You Need to Start Your Business in Connecticut?

Starting a business in Connecticut costs $220-$2,000 in required fees plus $5,000-$50,000 in operational expenses depending on your industry and location.

Your LLC filing costs $120, plus that often-missed $100 Sales and Use Tax Permit
, bringing true minimum startup costs to $220 before any other expenses.

What are your required Connecticut business filing fees and processing times?

Connecticut's required filing fees total $220 for most businesses—the $120 LLC Certificate of Organization plus the $100 Sales and Use Tax Permit that catches many entrepreneurs off guard.

Online filing processes in 2-3 business days, while paper applications take 3-4 weeks, though expedited processing adds $50 for next-day service.

  • LLC Formation: $120 Certificate of Organization, same price online or by mail

  • Corporation Setup: $120 Articles of Incorporation, plus initial report within 30 days

  • Annual Reports: $80 yearly for LLCs and corporations to maintain good standing

  • Trade Names: $50 per town for DBA filings if operating under different names

  • Professional Licenses: $76-$1,850 depending on industry, renewable annually or biennially

What hidden costs should you budget for your Connecticut business?

Connecticut's hidden costs hit hardest in compliance and labor, where weekly payroll requirements and extensive record-keeping add thousands in administrative expenses.

The $250 Business Entity Tax every two years applies regardless of profitability, while municipal permits vary wildly—Hartford charges differently than New Haven.

  • Compliance Software: $100-$500 monthly for payroll, scheduling, and HR systems to meet Connecticut's complex requirements

  • Professional Services: $2,000-$5,000 annually for accounting to navigate Pass-Through Entity Tax elections and quarterly filings

  • Workers' Comp: Mandatory with first employee, ranging 0.5%-15% of payroll depending on industry risk

  • Local Permits: $50-$1,000 per municipality for zoning, health, and fire marshal approvals

What are the real startup costs beyond filing fees in Connecticut?

Real Connecticut startup costs range from $5,000 for home-based service businesses to $50,000+ for retail or restaurant ventures. 

Commercial lease rates vary from Hartford's $21.15 to Stamford's premium prices, while equipment, inventory, and marketing easily consume your first $10,000.

  • Service Businesses: $5,000-$15,000 for insurance, equipment, initial marketing, and 3 months operating capital

  • Retail Operations: $25,000-$50,000 including inventory, POS systems, store fixtures, and 6 months rent

  • Restaurants: $50,000-$150,000 for kitchen equipment, dining room setup, permits, and pre-opening expenses

  • Professional Offices: $15,000-$30,000 for furniture, technology, deposits, and client acquisition

Pro tip: Create a detailed 12-month cash flow projection—Connecticut's small business survival rate of 5.73 years beats many states, but only with proper financial planning.

What support resources can you access for your Connecticut business?

Connecticut small businesses can access funding from $5,000 to $500,000 through state programs, plus free counseling through SBDC centers at UConn, Yale, and regional universities.

The Connecticut Small Business Boost Fund
specifically targets women- and minority-owned businesses with flexible loan terms over 60-72 months.

Connecticut Small Business Boost Fund: Loans from $5,000-$500,000 with low interest rates for payroll, equipment, or expansion

SBDC Network: Free business counseling at UConn, Central Connecticut State, and other locations statewide

CT Innovations: Venture capital and grants for tech startups, especially in life sciences where Connecticut ranks second nationally for VC investment

seCTer Rise: $10,000-$25,000 grants for southeastern Connecticut businesses, with 50% reserved for minority/women/veteran-owned companies

Connecticut Green Bank: Financing for energy efficiency upgrades and clean technology implementation

Women's Business Development Council: Grants, training, and networking specifically for female entrepreneurs

Pro-tip: Schedule a free consultation with your nearest SBDC advisor—they'll help identify which programs match your business and often assist with application paperwork.

What's your 30-day action plan to start your Connecticut business?

Your 30-day Connecticut business launch starts with entity formation and name registration (Week 1), moves through tax setup and licensing (Week 2), tackles insurance and banking (Week 3), and wraps with systems setup and marketing launch (Week 4).

This timeline assumes you've already validated your business idea and have startup capital ready.

Week 1: File your LLC through Connecticut Secretary of State ($120), get federal EIN (free), register for Connecticut tax accounts including the $100 Sales and Use Tax Permit, and check municipal requirements in Hartford, Stamford, or wherever you'll operate.

Week 2: Apply for industry licenses through Department of Consumer Protection, obtain local permits from your city (each of Connecticut's 169 towns differs), schedule insurance consultations, and set up accounting systems for Connecticut's weekly payroll requirements.

Week 3: Open business banking with Connecticut EIN and formation docs, finalize workers' comp if hiring, implement payroll system for $15.69 minimum wage compliance, and create your operating agreement.

Week 4: Launch marketing website and Google Business Profile, join local chamber of commerce, schedule SBDC consultation for growth planning, and soft-launch to test operations before grand opening.

Your next move: Download Connecticut's official new business checklist from Business.CT.gov—it's your roadmap through state-specific requirements most other guides miss.

What's your bottom line for Connecticut business success?

Connecticut small business success means understanding that despite higher costs and regulations, the state's thriving service economy desperately needs well-run businesses that treat hourly workers fairly. 

With 381,129 small businesses employing 48.1% of the workforce and Connecticut's $15.69 minimum wage attracting quality talent, prepared entrepreneurs running restaurants, retail stores, cleaning services, and childcare centers can build sustainable businesses here. 

Focus on sectors where Connecticut's educated workforce wants to shop and dine—your Hartford coffee shop, Stamford fitness studio, or New Haven restaurant benefits from customers with disposable income, while state programs like the Small Business Boost Fund's $5,000-$500,000 loans help you manage startup costs and weekly payroll requirements.

Your Next Move: Schedule your free SBDC consultation this week to validate your business model against Connecticut's market realities—they'll provide industry-specific guidance and connect you with funding programs you didn't know existed.

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