- Filing fee
- $120
- Annual Report
- $80
- First-year gov. cost
- $120
- Publication
- Not required
The steps, in order
Pick a name Connecticut will accept
Must include LLC or Limited Liability Company.
Search existing Connecticut business names before you commit. Connecticut naming rules in detail.
Appoint a registered agent
Physical Connecticut street address (no PO Boxes) required to be maintained at all times.
You can serve as your own agent, but your address will be public. Compare Connecticut registered agent options.
File the Certificate of Organization
Submit it to the Connecticut Secretary of the State through the official filing portal and pay $120.
Processing: online Almost instantly upon receipt; by mail 7 to 10 business days. Expedite: $50 per transaction.
Write an operating agreement
Not mandatory to be written, but heavily advised to override default rules (e.g., distributions in strict proportion to capital contributions).
Get an EIN from the IRS
An Employer Identification Number is free from IRS.gov. You'll need it for a business bank account and, if you hire, for payroll.
Stay in good standing
File the Annual Report ($80), due Between January 1 and March 31 of each year. $100 late fee. Connecticut report deadlines.
Every Connecticut LLC fee
| Filing | State fee | Notes |
|---|---|---|
| Certificate of Organization | $120 | |
| Annual Report | $80 | annual, Between January 1 and March 31 of each year |
| Name reservation (optional) | $60 | UNCONFIRMED |
| Amendment | $120 | |
| Certificate of good standing | $50 | |
| Certificate of Authority (Foreign Registration Statement) | $120 | For LLCs formed in another state |
| Certificate of Dissolution | $0 | |
| DBA / assumed name | Varies by town | county/town |
How Connecticut compares nationally
- Connecticut's filing fee of $120 is the 23rd highest of 51 jurisdictions (median $104).
- Connecticut's first-year government cost of $120 is the 25th lowest of 51 jurisdictions (median $125).
- Connecticut's yearly cost after that of $80 is the 17th highest of 51 jurisdictions (median $45).
See every state side by side in our LLC cost by state table.
File it yourself or use a service?
Filing directly with the Connecticut Secretary of the State costs $120 and nothing else, but you'll need a registered agent with a Connecticut street address, and that address goes on the public record. A formation service files for you and acts as your agent. Here's what that adds over three years, before Connecticut's own fees:
| Route | Year one with Connecticut fee | 3-year service fees |
|---|---|---|
| File yourself, be your own agent | $120 | $0 |
| Northwest | $159 | $289 |
| Bizee Basic | $120 | $298 |
Bizee vs Northwest, compared · All LLC services ranked
State taxes to plan for
Pass-Through Entity Tax (PTET) applies to most partnerships and LLCs. Personal income tax is progressive (2.00% to 6.99%) with no standard deduction. Corporate income tax is 7.50% plus 10% surtax for revenues over $100 million.
What's different about Connecticut
- Personal tax structure features no standard deduction.
- DBA filings are pushed down to local municipalities rather than a centralized state registry.
- Annual report has a fixed calendar window rather than an anniversary date.
More Connecticut LLC guides
Connecticut LLC questions
How much does it cost to form an LLC in Connecticut?
The Connecticut Secretary of the State charges $120 to file the Certificate of Organization. Counting mandatory first-year items, expect about $120 in government fees (Formation fee).
How long does it take to form an LLC in Connecticut?
Online: Almost instantly upon receipt. By mail: 7 to 10 business days. Expedited: $50 per transaction.
Does a Connecticut LLC have to file an annual report?
Yes. Connecticut requires the Annual Report, which costs $80, filed annual. Due: Between January 1 and March 31 of each year. $100 late fee.
Can I be my own registered agent in Connecticut?
Yes. Physical Connecticut street address (no PO Boxes) required to be maintained at all times. Your agent's address becomes public record.
Does Connecticut require publishing a notice for a new LLC?
No. Connecticut has no newspaper publication requirement for LLCs, based on our latest check.
Is an operating agreement required in Connecticut?
Not mandatory to be written, but heavily advised to override default rules (e.g., distributions in strict proportion to capital contributions).
What taxes does a Connecticut LLC pay to the state?
Pass-Through Entity Tax (PTET) applies to most partnerships and LLCs. Personal income tax is progressive (2.00% to 6.99%) with no standard deduction. Corporate income tax is 7.50% plus 10% surtax for revenues over $100 million.
Sources and verification
Last checked against official state sources on . States change fees with little notice, so confirm on the filing portal before you pay. How we verify.
Still being confirmed with the state: name reservation duration, ra change fee, dissolution fee exact amount (conflicting sources).