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Connecticut Corporation cost breakdown, 2026
Corporation cost in Connecticut · real fees, no upsells

How much does a Corporation cost in Connecticut?

Forming a corporation in Connecticut costs $250 in state filing fees, then $80/year in state annual fees. File.Business charges $0 service fee.

Connecticut corporation cost summary

Year 1 with File.Business$330
Connecticut state filing fee$250
Connecticut annual fee$80/year
Registered agentFree year 1, $99/year after
File.Business service fee$0

C-Corp vs S-Corp cost in Connecticut

The Connecticut state filing fee is the same whether you elect S-Corp tax treatment or not. The S-Corp election is filed with the IRS (Form 2553), which is free. S-Corp election in Connecticut walks you through it.

Form your Connecticut corporation for $250 total

State filing fee only. $0 service fee. Free registered agent year 1. Start my Connecticut corporation

FAQ

How much does it cost to start a corporation in Connecticut?

$250 for the Connecticut state filing fee. File.Business charges $0 service fee on top.

What is the annual cost to maintain a Connecticut corporation?

$80/year for the Connecticut annual report.

Are S-Corps cheaper than C-Corps to form in Connecticut?

Identical Connecticut state cost. S-Corp is a federal tax election filed separately with the IRS, free.

Cost calculator

What it actually costs to form your business

Pick your state. We show our service price, the state's filing fee, and your year-one total. No hidden costs.

Filing fees vary by state. We never mark them up.
Our service$0Formation included
State filing fee$120Paid at cost
Year 1 total$120+ $80/yr annual
Connecticut: $120 to form, $80/yr ongoing. State fee paid at cost · we add $0.
$129/yr Compliance Annual Filings · penalty-free

On the $129/yr Compliance Annual Filings plan, we cover state late fees.

When you autofile your annual report through the $129/yr plan and we miss the deadline, we pay the state's late fee. The guarantee applies to that specific plan and the filings it includes. Other File.Business services are billed at the prices on this page.

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File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with any Secretary of State office. You may file directly with the appropriate state agency. SOC 2 Type II audited. 220,000+ businesses formed since 2017.
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