State filing fee
$120
From business.ct.gov, October 2026
LLC cost guide · Connecticut
Connecticut LLC Fees and Costs (2026): the Official Numbers and the 3 Best LLC Services
The best picks for setting up an LLC in Connecticut in 2026 are CT Registered Agent.org ($199), Mainstay Filing ($199) and Connecticut Registered Agent.co ($199), in that order. Three facts about Connecticut: the filing fee is $120; the annual report costs $80 every year; the state ranks number 32nd of 50 on three-year cost.
Connecticut: key numbers
Annual report
$80 / yr
Due date, in the state's own words: on or before March 31. From business.ct.gov, October 2026
State charges over 3 years
$280
Year 1 filing, years 2 and 3 reports
Ranked services for Connecticut
Weights are listed on the method page. Three-year fees and coverage count for the most.
1. CT Registered Agent.org: best for a plain Connecticut formation
$199 plus fees, then $99 a year
CT Registered Agent.org ranks number one. A formation price of $199 above the state fee, then $99 for the agent from year 2.
Three-year fees come in under Mainstay Filing's, on the criterion that counts most.
The annual report is not part of the price, so you file it every year.
What the price takes in
- Prepares the formation filing
- First year of agent service
In its favor
- $199 to form
- A $99 renewal
- The first agent year is included
Against it
- The owner still files the annual report
- The EIN application costs $99 more
2. Mainstay Filing: best for owners who prefer low-effort upkeep
$199 yearly; renews at $199
We put Mainstay Filing second since a single yearly price of $199 pays for formation, a registered agent and the annual report.
CT Registered Agent.org comes out $200 ahead on three-year provider fees.
It files the annual report every year, and the $80 state fee is billed at cost.
What the price takes in
- Files the formation papers for you
- Registered agent for twelve months
- Prepares and files the annual report
- Takes care of the EIN application
- The state fee is billed at cost
In its favor
- A flat $199 each year
- The EIN application is included
- Still $199 the following year
Against it
- CT Registered Agent.org renews for $100 less
3. Connecticut Registered Agent.co: best for LLCs that only operate in Connecticut
$199 plus fees, then $99 a year
Number 3, Connecticut Registered Agent.co, for this reason: a formation price of $199 above the state fee, then $99 for the agent from year 2.
The annual report is not part of the price, so you file it every year.
The prices are the same as CT Registered Agent.org's.
What the price takes in
- Prepares the formation filing
- First year of agent service
In its favor
- A $99 renewal
- $199 to form
- The first agent year is included
Against it
- The owner still files the annual report
- The EIN application costs $99 more
Connecticut ranking in one table
| No. | Provider | First year | Later years | Provider fees over 3 years | |
|---|---|---|---|---|---|
| 1 | CT Registered Agent.org | $199 | $99/yr | $397 | Visit CT Registered Agent.orgPartner link. We may earn money if you buy. |
| 2 | Mainstay Filing | $199 | $199/yr | $597 | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 3 | Connecticut Registered Agent.co | $199 | $99/yr | $397 | Visit Connecticut Registered Agent.coPartner link. We may earn money if you buy. |
We read each company's price page on November 13, 2026. The state's $120 is left out of the numbers above.
Connecticut LLC cost calculator
Choose a number of years and a provider. The state part follows the official fee schedule: $120 to form, then the annual report from year 2.
Connecticut and the states around it in the ranking
| Place | State | Three-year state fees |
|---|---|---|
| 30th | New Jersey | $250 |
| 31st | South Dakota | $260 |
| 32nd | Connecticut | $280 |
| 33rd | Illinois | $300 |
| 33rd | New Hampshire | $300 |
All fifty rows are in LLC costs by state.
Cost of forming a Connecticut LLC
Plan on $120 when you hand the Certificate of Organization to the Connecticut Secretary of State; the law is Conn. Gen. Stat. § 34-247. Every provider below charges the state fee at cost. Normal processing time: Most online filings automatically accepted.
Good standing in Connecticut depends on the annual report
Under Connecticut rules the annual report gets filed every year, on or before March 31, and the state's fee for it is $80.
Why CT Registered Agent.org is first
The criterion that decided Connecticut was service bill, years one to three, at 34%.
It leads on cost at $397 over three years, $200 lower than Mainstay Filing.
Frequently asked questions
How much does Connecticut charge to form an LLC?
$120 goes to the state. A provider adds $199.
What will filing the annual report cost in Connecticut?
It costs $80 and is due every year, on or before March 31.
Where does Connecticut stand on LLC costs?
Connecticut is number 32nd of 50 on three-year state fees, at $280. The lowest total takes number 1.
How long does the state take to process a new LLC?
The state says to expect Most online filings automatically accepted.
Does Connecticut require a registered agent?
Every LLC must name a registered agent with an in-state street address.
Which LLC service would you choose?
The order is CT Registered Agent.org, Mainstay Filing and Connecticut Registered Agent.co.
Where these facts come from
- Backing for the numbers about Connecticut Secretary of the State, Business Services Division is found at business.ct.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Connecticut Secretary of the State, Business Services Division is found at business.ct.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Connecticut yearly filing: Annual report: fee, official source is found at business.ct.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Connecticut report due date is found at cga.ct.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Connecticut formation fee: Filing fee, official source is found at business.ct.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Connecticut formation fee: Filing fee, official source is found at business.ct.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about New Jersey DORES, Getting Registered is found at nj.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about New Jersey formation fee: Filing fee, official source is found at pub.njleg.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about New Jersey Division of Revenue and Enterprise Services is found at njportal.com, which we read in August 2026, and you can check it there.
- Backing for the numbers about New Jersey Division of Revenue and Enterprise Services is found at njportal.com, which we read in August 2026, and you can check it there.
- Backing for the numbers about SDCL 47-34A-203 is found at sdlegislature.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about South Dakota formation fee: Filing fee, official source is found at sdsos.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about South Dakota formation fee: Filing fee, official source is found at sdlegislature.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about South Dakota Secretary of State, Business Services / is found at sdsos.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about South Dakota Secretary of State, Business Services / is found at sosenterprise.sd.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about South Dakota yearly filing: Annual report: fee and is found at sdlegislature.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about 805 ILCS 180/5-5 is found at ilga.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Illinois formation fee: Filing fee, official source is found at ilga.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Illinois formation fee: Filing fee, official source is found at ilsos.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Illinois Secretary of State, Department of Business Services is found at ilsos.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Illinois Secretary of State, Department of Business Services is found at ilsos.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about N.H is found at gc.nh.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about New Hampshire formation fee: Filing fee, official source is found at sos.nh.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about New Hampshire formation fee: Filing fee, official source is found at gc.nh.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about New Hampshire Secretary of State, Corporations Division is found at sos.nh.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Processing and expedite, official source is found at business.ct.gov, which we read in October 2026, and you can check it there.
- CT Registered Agent.org posted pricing page; we read the page November 13, 2026
- Mainstay Filing posted Connecticut service page; we read the page November 13, 2026
- Connecticut Registered Agent.co posted pricing page; we read the page November 13, 2026