Forming an LLC in
Connecticut CT
Checked November 4, 2026 · How we score
Filing fee
$120
Articles of Organization
Annual fee
$80
per year, normalised
State income tax
6.99%
top rate
Cost rank
#29
of 51, first-year fees
Connecticut LLC costs
| Filing fee | $120 |
|---|---|
| Annual report / franchise fee | $80 Annual report: $80, due March 31 each year. |
| First-year state fees | $200 |
| Registered agent | Required (about $50–$300/year if you don't use your own address in the state) |
| Newspaper publication | No |
| Anonymous ownership | No |
| Processing time | 2 days |
Connecticut taxes for LLCs
| Personal income tax (top) | 6.99% Graduated 2%–6.99%. |
|---|---|
| Corporate income tax | 7.5% 7.5% on net income, plus a 10% surtax for large corporations. |
| State sales tax | 6.35% |
| Franchise / gross receipts | Pass-through entity tax (PET) is mandatory for LLCs taxed as partnerships or S-corps, at 6.99% of income. |
A single-member LLC is a disregarded entity: profit flows to the owner's personal return. Federal income tax applies in every state. Non-US owners without US-source business income generally owe no US income tax but must file Form 5472 with a pro-forma 1120 each year.
Pros and cons
Why form in Connecticut
- Fast online filing
- Annual report is simple and cheap
- Business Services portal is well run
Watch out for
- High income tax and mandatory pass-through entity tax
- $120 fee plus $80 yearly adds up to above-average costs
Best for: Connecticut-based businesses · Consultants serving New York metro clients
Connecticut LLC: common questions
How much does an LLC cost in Connecticut?
Filing the Articles of Organization in Connecticut costs $120. After that, expect $80 a year for the annual report. Annual report: $80, due March 31 each year. A commercial registered agent, if you need one, is typically $50–$300 a year extra.
Do I need a registered agent in Connecticut?
Yes. Connecticut requires every LLC to keep a registered agent with a physical street address in the state to accept legal and tax notices. You can act as your own agent if you live there, but non-residents and owners who want privacy usually pay a commercial agent, typically $50–$300 a year.
Can a non-US resident form an LLC in Connecticut?
Yes. Connecticut does not require US citizenship, residency or an SSN to own an LLC; you need a Connecticut registered agent address and then an EIN from the IRS (by fax or mail with Form SS-4 if you have no SSN). A foreign-owned single-member LLC must also file Form 5472 with the IRS every year, even with no US income. Check what Connecticut publishes, since member or manager names may appear in public filings.
Does Connecticut have a state income tax?
Yes. Graduated 2%–6.99%. LLC profits normally pass through to the owners' personal returns. Corporate income tax: 7.5% on net income, plus a 10% surtax for large corporations.
How much is the Connecticut LLC annual report?
Connecticut charges $80 for the annual report, due by March 31 each year. The $120 Certificate of Organization fee is a one-time charge.
Sources
Connecticut Secretary of State business filings
- Connecticut Secretary of State / business filing office
- Tax Foundation – 2026 state income tax rates
- LLC University – LLC filing and annual fees by state (cross-check)
Similar states
Not tax or legal advice. Rates and rules change; we check official sources and update every page, but verify with a licensed adviser in the country before acting. Spotted something out of date? Use the correction form below.