Form a Business in Connecticut
Filing fees, deadlines, registered agent rules, and tax structure for Connecticut, verified against the Connecticut Secretary of the State (Stephanie Thomas, verified at portal on Jun 11, 2026.
Connecticut at a glance
LLC Formation
$120
Corp Formation
$250
Nonprofit Formation
$50
Annual Report: LLC
$80
Annual Report: Corp
$150
Registered Agent
Street address
What makes Connecticut different
- Connecticut filing rules are documented in our canonical ruleset.
Connecticut tax structure
See your CPA for personalized tax analysis.
For detailed tax planning, see the Connecticut Secretary of the State (Stephanie Thomas, verified at portal and the Connecticut Department of Revenue. File.Business is not a tax preparer, consult a CPA for personalized advice.
Ready to file in Connecticut?
We handle Articles of Organization, registered agent service, annual report monitoring, and ongoing compliance, backed by our canonical Connecticut ruleset (re-verified quarterly against Connecticut Secretary of the State (Stephanie Thomas, verified at portal).
Filing portal: #
At a glance
- What is it
- Form a business in connecticut is a regulated business process governed by federal or state agencies. File.Business handles the paperwork, filings, and tracking for you.
- Why it matters
- Doing this correctly the first time avoids penalties, late fees, and personal liability exposure for owners.
- Who needs it
- Any US business that has triggered the relevant requirement - usually based on entity type, state, or business activity.
- When it is due
- Deadlines vary by agency and state. We track your specific dates and remind you ahead of any filing window.
- How it works
- Tell us what you need, review the prepared filing, and we submit through the agency's official channel.
- What it costs
- Pricing is shown on this page with state and federal fees disclosed separately from our service fee.
- Risks of skipping
- Penalties, administrative dissolution, loss of liability shield, blocked transactions, or audit triggers depending on the filing.
- Alternatives
- File directly with the agency yourself, hire a law firm, or use a competing service. File.Business is the fastest premium option.