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Formation Facts

What the state wants, and what it costs.

Foreign LLC guide · Connecticut

Connecticut Foreign LLC Registration (2026): What the State Charges and the 3 Best Services

Short version for Connecticut in 2026: Mainstay Filing ($199), CT Registered Agent.org ($199) and Connecticut Registered Agent.co ($199), ranked best first, if you are bringing an out-of-state LLC into the state. You will pay $120 to get in and $80 on each report. That ranks Connecticut 27th of 50 for foreign LLCs.
Briefing by the Formation Facts team

Connecticut: the quick briefing

27th

of 50 on what a foreign LLC owes the state

Rank 1 is the least expensive state. See every state side by side

  • Fee the state takes at registration

    $120

    business.ct.gov; we confirmed it in October 2026

  • Report you must file again

    $80

    Annual report

  • Paper from the home state

    90 days

    It cannot be dated before

  • What the state collects in 3 years

    $280

    Registration in year 1, reports in years 2 and 3

Connecticut: the services we would choose

Every criterion and weight is on the method page.

Our #1

1. Mainstay Filing: best for one price in every added state

$199 plus the $120 state fee, then $149 a year

Mainstay Filing earns the top spot because it files your Connecticut registration for $199 beyond the state fee and includes the first year of agent service.

CT Registered Agent.org is $100 lower over three years, but this provider takes more of the state paperwork off your plate, and that is what moves it up.

When the free year is over, the agent costs $149 a year, whatever the state.

What your money gets you

  • Prepares your registration and files it
  • Your registered agent for the first year is free
  • Serves all fifty states

What works

  • All fifty states covered
  • A year of agent service at no cost
  • Its fee is $199

What to weigh

  • CT Registered Agent.org's agent renews for $50 less
Visit Mainstay FilingPartner link. We may earn money if you buy.

Local option

2. CT Registered Agent.org: best for an easy Connecticut registration

$199 plus the $120 state fee, then $99 a year

CT Registered Agent.org takes second place because their fee is $199, and the agent renews at $99.

What your money gets you

  • Prepares your registration filing
  • A year of agent service

What works

  • $199 to register
  • No agent fee in year 1
  • $99 a year from year 2

What to weigh

  • Just Connecticut
Visit CT Registered Agent.orgPartner link. We may earn money if you buy.

Local option

3. Connecticut Registered Agent.co: best for a smaller agent renewal

$199 plus the $120 state fee, then $99 a year

Connecticut Registered Agent.co takes third place because their fee is $199, and the agent renews at $99.

You pay the same here as at CT Registered Agent.org.

What your money gets you

  • Prepares your registration filing
  • A year of agent service

What works

  • $199 to register
  • $99 a year from year 2
  • No agent fee in year 1

What to weigh

  • Just Connecticut
Visit Connecticut Registered Agent.coPartner link. We may earn money if you buy.

The 3 picks compared

RankWhoYou pay in year 1Then per yearTheir fees across 3 years
1Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
2CT Registered Agent.org$199$99/yr$397Visit CT Registered Agent.orgPartner link. We may earn money if you buy.
3Connecticut Registered Agent.co$199$99/yr$397Visit Connecticut Registered Agent.coPartner link. We may earn money if you buy.
Prices as shown on November 13, 2026. Remember to add the $120 state fee to each row.

Work out your total

The registration fee is $120, with a $80 report from year 2, and provider fees are added on top.
Your total over 3 years with Mainstay Filing is $777 ($280 state, $497 service).

How Connecticut compares with the states near it in the ranking

RankStateThree-year foreign LLC fees
25thPennsylvania$264
26thWyoming$270
27thConnecticut$280
28thIllinois$300
28thNew Hampshire$300
The whole comparison lives at Foreign LLC fees by state, lowest bills first.

Connecticut foreign LLC registration in 2026

To get your out-of-state LLC registered, deliver the Foreign Registration Statement, Limited Liability to the Connecticut Secretary of the State, Business Services Division with $120. Your application must come with certificate of existence (certificate of good standing) from the state of formation, dated within 90 days.

Once registered, the LLC has to file the annual report ($80), between January 1 and March 31.

Pre-filing checklist

  • Certificate of existence (certificate of good standing) from the state of formation, at most 90 days.
  • Your LLC's legal name and formation date in the home state.
  • Your own registered agent with a street address in the state, named on the form.
  • Payment for the $120 official fee.

The consequences of staying unregistered

The state bills the fees for the unregistered years as well.

Why the Connecticut list is in this order

In Connecticut, Mainstay Filing beat CT Registered Agent.org on upkeep the price covers (26%).

With two states involved, the provider that works in each moved ahead of CT Registered Agent.org.

Quick answers

How much will it cost to register my out-of-state LLC with Connecticut?

$120 for the filing itself. Our picks add $199.

Which form do I use to register an out-of-state LLC with Connecticut?

Use the Foreign Registration Statement, Limited Liability and send it to the Connecticut Secretary of the State, Business Services Division.

Does the state want a certificate from my home state?

Yes, you need certificate of existence (certificate of good standing) from the state of formation, dated within 90 days of your filing.

Will my foreign LLC have to file anything every year?

Yes, you file the annual report and pay $80.

What happens if my LLC does business there without registering?

The state bills the fees for the unregistered years as well.

Must I appoint a registered agent when registering in Connecticut?

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

Which service should I choose to register a foreign LLC?

Mainstay Filing comes first and CT Registered Agent.org and Connecticut Registered Agent.co follow. What separates them is upkeep the price covers.

Other briefings

Where this briefing comes from

  1. If you want proof of what we say about Connecticut Secretary of the State, Business Services Division, open business.ct.gov; that is the page we relied on, and we looked at it in August 2026.
  2. If you want proof of what we say about Connecticut Secretary of the State, Business Services Division, open business.ct.gov; that is the page we relied on, and we looked at it in August 2026.
  3. If you want proof of what we say about Connecticut yearly filing: Annual report: fee, official source, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  4. If you want proof of what we say about Connecticut report due date, open cga.ct.gov; that is the page we relied on, and we looked at it in August 2026.
  5. If you want proof of what we say about Connecticut formation fee: Filing fee, official source, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  6. If you want proof of what we say about Connecticut formation fee: Filing fee, official source, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  7. If you want proof of what we say about Foreign LLC forms and fees, Business.CT.gov, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  8. If you want proof of what we say about Foreign Registration Statement form, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  9. If you want proof of what we say about Foreign investigations penalties, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  10. If you want proof of what we say about Who can be an agent, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  11. If you want proof of what we say about Foreign annual report forms and fees, open business.ct.gov; that is the page we relied on, and we looked at it in October 2026.
  12. If you want proof of what we say about Pennsylvania DOS, foreign associations, open pa.gov; that is the page we relied on, and we looked at it in October 2026.
  13. If you want proof of what we say about Foreign Registration Statement, DSCB:15-412, open pa.gov; that is the page we relied on, and we looked at it in October 2026.
  14. If you want proof of what we say about DOS fees and payments, open pa.gov; that is the page we relied on, and we looked at it in October 2026.
  15. If you want proof of what we say about Commercial registered office providers, open pa.gov; that is the page we relied on, and we looked at it in October 2026.
  16. If you want proof of what we say about Annual reports, open pa.gov; that is the page we relied on, and we looked at it in October 2026.
  17. If you want proof of what we say about Wyoming Secretary of State, foreign LLC application for, open sos.wyo.gov; that is the page we relied on, and we looked at it in October 2026.
  18. If you want proof of what we say about Wyoming Secretary of State, fee schedule, open sos.wyo.gov; that is the page we relied on, and we looked at it in October 2026.
  19. If you want proof of what we say about Wyoming Secretary of State, business FAQ, open sos.wyo.gov; that is the page we relied on, and we looked at it in October 2026.
  20. If you want proof of what we say about Certificate of Withdrawal, foreign LLC, open sos.wyo.gov; that is the page we relied on, and we looked at it in October 2026.
  21. If you want proof of what we say about Wyoming Statutes, Title 17, open wyoleg.gov; that is the page we relied on, and we looked at it in October 2026.
  22. If you want proof of what we say about Illinois Secretary of State, LLC forms, open ilsos.gov; that is the page we relied on, and we looked at it in October 2026.
  23. If you want proof of what we say about Form LLC-45.5, Application for Admission, open ilsos.gov; that is the page we relied on, and we looked at it in October 2026.
  24. If you want proof of what we say about Form LLC-45.40, Application for Withdrawal, open ilsos.gov; that is the page we relied on, and we looked at it in October 2026.
  25. If you want proof of what we say about 805 ILCS 180/45-45, consequences of transacting business without, open ilga.gov; that is the page we relied on, and we looked at it in October 2026.
  26. If you want proof of what we say about 805 ILCS 180/45-47, activities that are not transacting, open ilga.gov; that is the page we relied on, and we looked at it in October 2026.
  27. If you want proof of what we say about New Hampshire Secretary of State, LLC forms and, open sos.nh.gov; that is the page we relied on, and we looked at it in October 2026.
  28. If you want proof of what we say about Form FLLC-1, open sos.nh.gov; that is the page we relied on, and we looked at it in October 2026.
  29. If you want proof of what we say about RSA 304-C:174, activities that do not count, open gc.nh.gov; that is the page we relied on, and we looked at it in October 2026.
  30. If you want proof of what we say about RSA 304-C:175, registration, open gc.nh.gov; that is the page we relied on, and we looked at it in October 2026.
  31. If you want proof of what we say about RSA 304-C:191, fees, open gc.nh.gov; that is the page we relied on, and we looked at it in October 2026.
  32. The page we used for Mainstay Filing (Connecticut service page) was open to us on November 13, 2026
  33. The page we used for CT Registered Agent.org (pricing page) was open to us on November 13, 2026
  34. The page we used for Connecticut Registered Agent.co (pricing page) was open to us on November 13, 2026