| Connecticut compliance at a glance | |
|---|---|
| Annual report due | Annually between January 1st and March 31st |
| Annual report fee | $80 |
| Late penalty | No direct late fees, but you lose certificate of legal existence and face potential administrative dissolution |
| Entity types covered | LLC, Corporation, Nonprofit, LP |
| Filing agency | Connecticut Secretary of State |
What Connecticut requires from your business
Connecticut Business Compliance
Quick-Start Teaser
Avoid the biggest traps new owners face – from my 27-page full guide
PHASE 1: BUSINESS PLANNING & LEGAL STRUCTURE
Validate idea, choose entity (LLC/S-Corp/etc.), register with Secretary of State, get EIN, DBA, operating agreement/bylaws.
■ TRAP ALERT: Picking default LLC instead of S-Corp election when profits exceed $40K+ → Overpaying in self-employment taxes — CT’s 6.99% top income tax plus 15.3% SE tax creates a heavy combined burden.
PHASE 2: STATE & LOCAL REGISTRATIONS
Register for state tax accounts, sales/gross receipts tax, local licenses and permits, unemployment insurance, new hire reporting.
■ TRAP ALERT: Missing the annual report filing window (January 1 - March 31 fixed window) → Late fees, loss of good standing, and eventual administrative dissolution.
PHASE 3: FEDERAL COMPLIANCE
Check federal licenses, set up payroll taxes (EFTPS), I-9 for hires, workplace safety (OSHA/state plan).
■ TRAP ALERT: Commingling personal and business funds → Pierces the corporate veil and exposes your personal assets to lawsuits and debts.
PHASE 4: INSURANCE & RISK MANAGEMENT
General liability, workers’ comp (required in most states), state-mandated benefits, standard contracts/agreements.
■ TRAP ALERT: Skipping workers’ comp — CT requires coverage from the FIRST employee, FIRST DAY → Fines up to $50,000, employer becomes personally liable for all benefits owed to injured workers.
PHASE 5: FINANCIAL SETUP & TAX COMPLIANCE
Open dedicated business bank account, set up bookkeeping/accounting systems.
■ TRAP ALERT: Forgetting CT corporate tax returns are due May 15 (NOT April 15 like federal) → Late filing penalties and interest — this unique CT deadline catches owners who assume the standard April 15 date.
PHASE 6: OPERATIONS & ONGOING COMPLIANCE
Navigate ongoing taxes/regulations, maintain compliance calendar, annual filings.
■ TRAP ALERT: Missing expanding paid sick leave requirements (phased 2026-2027 to cover ALL employers) → Penalties of $500/violation for leave requirements, $100/recordkeeping violation.
The complete Connecticut compliance package
Our full Connecticut compliance package covers every filing requirement, deadline, fee schedule, penalty structure, and step-by-step instructions specific to Connecticut businesses.
Get the complete Connecticut compliance package
Every filing, every deadline, every form — organized and ready to follow. No guesswork.
Download CT Compliance Package — $37