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Statewise Business The state fee almanac for LLCs, sourced line by line.

LLC cost guide · Connecticut

Connecticut LLC Fees (2026): the State Schedule and the 3 Best LLC Services

Connecticut in 2026, forming an LLC: we rank Connecticut Registered Agent.co ($199), Mainstay Filing ($199) and CT Registered Agent.org ($199) in that order. Almanac figures for Connecticut: $120 at filing, $80 every year for the annual report; position 32nd of 50 on three-year state fees.

Entry by the Statewise Business almanac desk ·

Connecticut fee schedule

32ndacross 50 states, three-year state feesPosition 1 is the least expensive state. The complete table
Filing fee charged by the state
$120Entry from business.ct.gov, October 2026
Annual report
$80 / yrFalls due: on or before March 31. Entry from business.ct.gov, October 2026
State fees over three years
$280Year-one filing plus years two and three

Connecticut shortlist

Three-year service fees and filings covered count most; the methodology gives all five weights.

1. Connecticut Registered Agent.co: best for founders who stay in Connecticut

First on the list$199 and fees, then $99 yearly

Entry one is Connecticut Registered Agent.co: a $199 formation fee and a $99 agent renewal.

On three-year cost it is below Mainstay Filing, and that is the single biggest weight we use.

The annual report is outside its published prices, so you file it yourself every year.

In the price

  • Formation filing prepared for you
  • First year of agent service

Strengths

  • A $99 renewal
  • No agent charge in the first year
  • $199 and the state fee

Weak points

  • Annual report filing is not covered
  • The EIN application is $99 extra
Visit Connecticut Registered Agent.coPartner link. We may earn money if you buy.

2. Mainstay Filing: best for one bill for formation and upkeep

Works anywhere$199 a year, state fee added ($319 at checkout)

Rank 2, Mainstay Filing: a single yearly $199 pays for formation, a registered agent and the annual report, and it renews at $199.

It runs $200 more than Connecticut Registered Agent.co across three years, and cost is the heaviest criterion.

Filing the annual report comes with the renewal; add the $80 state fee at cost.

In the price

  • The formation filing, done for you
  • Registered agent service for the year
  • The annual report, prepared and submitted
  • EIN application included
  • Official fee, no markup

Strengths

  • $199 a year takes in formation and agent and report
  • Takes care of your EIN application
  • No renewal jump ($199)

Weak points

  • Connecticut Registered Agent.co renews for $100 less
Visit Mainstay FilingPartner link. We may earn money if you buy.

3. CT Registered Agent.org: best for owners who file their own reports

Local choice$199 and fees, then $99 yearly

Next in the almanac, CT Registered Agent.org: a $199 formation fee and a $99 agent renewal.

The annual report is outside its published prices, so you file it yourself every year.

On price it ties with Connecticut Registered Agent.co.

In the price

  • Formation filing prepared for you
  • First year of agent service

Strengths

  • No agent charge in the first year
  • $199 and the state fee
  • A $99 renewal

Weak points

  • Annual report filing is not covered
  • The EIN application is $99 extra
Visit CT Registered Agent.orgPartner link. We may earn money if you buy.

Prices in a row

#EntryYear-one priceYears two onService fees over three years
1Connecticut Registered Agent.co$199$99/yr$397Visit Connecticut Registered Agent.coPartner link. We may earn money if you buy.
2Mainstay Filing$199$199/yr$597Visit Mainstay FilingPartner link. We may earn money if you buy.
3CT Registered Agent.org$199$99/yr$397Visit CT Registered Agent.orgPartner link. We may earn money if you buy.
Prices as the companies publish them, taken November 12, 2026. The $120 state fee is extra in every row.

State and service fees, by year

Choose years and a service. The state side uses the official schedule: $120 at formation, then the annual report from year two.
State $280 and service $397 make $677 over 3 years with Connecticut Registered Agent.co.

Connecticut among its neighbors in the rank

PositionStateThree-year state fees
30thNew Jersey$250
31stSouth Dakota$260
32ndConnecticut$280
33rdIllinois$300
33rdNew Hampshire$300
LLC costs by state shows every state, least expensive first.

Connecticut LLC filing fee and form (official source)

The Connecticut Secretary of State accepts the Certificate of Organization for a $120 fee (Conn. Gen. Stat. § 34-247). It is the same figure whichever service files. Typical processing: Most online filings automatically accepted.

Connecticut's recurring filing

File the annual report every year, by on or before March 31; the state fee is $80.

How the Connecticut order was set

Added cost over three years settled first place in Connecticut. It carries 32% of the score, and the other criteria are requirements covered, renewal terms, fit with state rules, fee clarity.

Over three years Connecticut Registered Agent.co charges $397 in service fees, $200 under Mainstay Filing.

Common questions

What will it cost to form an LLC in Connecticut?

Connecticut charges $120 to file. The services on this page add $199 in the first year.

What does the Connecticut annual report cost?

The state charges $80 every year and expects the filing on or before March 31.

How does Connecticut compare on LLC state fees?

Position 32nd of 50 on three-year state fees, at $280, counting up from the least expensive state.

How soon does the state approve a new LLC?

Processing runs Most online filings automatically accepted.

Is a registered agent mandatory in Connecticut?

Every LLC must name a registered agent with an in-state street address.

Which LLC service should I hire?

Connecticut Registered Agent.co leads, then Mainstay Filing and CT Registered Agent.org. The lead comes down to added cost over three years.

Related entries

Citations for this entry

  1. Connecticut Secretary of the State, Business Services Division. Source: business.ct.gov. Last read August 2026.
  2. Connecticut Secretary of the State, Business Services Division. Source: business.ct.gov. Last read August 2026.
  3. Connecticut yearly filing: Annual report: fee, official source. Source: business.ct.gov. Last read October 2026.
  4. Connecticut report due date. Source: cga.ct.gov. Last read August 2026.
  5. Connecticut formation fee: Filing fee, official source. Source: business.ct.gov. Last read October 2026.
  6. Connecticut formation fee: Filing fee, official source. Source: business.ct.gov. Last read October 2026.
  7. New Jersey DORES, Getting Registered. Source: nj.gov. Last read October 2026.
  8. New Jersey formation fee: Filing fee, official source. Source: pub.njleg.gov. Last read October 2026.
  9. New Jersey Division of Revenue and Enterprise Services. Source: njportal.com. Last read August 2026.
  10. New Jersey Division of Revenue and Enterprise Services. Source: njportal.com. Last read August 2026.
  11. SDCL 47-34A-203. Source: sdlegislature.gov. Last read August 2026.
  12. South Dakota formation fee: Filing fee, official source. Source: sdsos.gov. Last read October 2026.
  13. South Dakota formation fee: Filing fee, official source. Source: sdlegislature.gov. Last read October 2026.
  14. South Dakota Secretary of State, Business Services /. Source: sdsos.gov. Last read August 2026.
  15. South Dakota Secretary of State, Business Services /. Source: sosenterprise.sd.gov. Last read August 2026.
  16. South Dakota yearly filing: Annual report: fee and. Source: sdlegislature.gov. Last read October 2026.
  17. 805 ILCS 180/5-5. Source: ilga.gov. Last read August 2026.
  18. Illinois formation fee: Filing fee, official source. Source: ilga.gov. Last read October 2026.
  19. Illinois formation fee: Filing fee, official source. Source: ilsos.gov. Last read October 2026.
  20. Illinois Secretary of State, Department of Business Services. Source: ilsos.gov. Last read August 2026.
  21. Illinois Secretary of State, Department of Business Services. Source: ilsos.gov. Last read August 2026.
  22. N.H. Source: gc.nh.gov. Last read August 2026.
  23. New Hampshire formation fee: Filing fee, official source. Source: sos.nh.gov. Last read October 2026.
  24. New Hampshire formation fee: Filing fee, official source. Source: gc.nh.gov. Last read October 2026.
  25. New Hampshire Secretary of State, Corporations Division. Source: sos.nh.gov. Last read August 2026.
  26. Processing and expedite, official source. Source: business.ct.gov. Last read October 2026.
  27. Connecticut Registered Agent.co pricing page, taken November 12, 2026
  28. Mainstay Filing Connecticut service page, taken November 12, 2026
  29. CT Registered Agent.org pricing page, taken November 12, 2026