3 Best Foreign Registration Services in Connecticut (2026): Who to Ask First
Wondering about foreign registration services in Connecticut, for 2026 our order is Connecticut Registered Agent.co ($199), Mainstay Filing ($199) and CT Registered Agent.org ($199). Registering costs $120 at Connecticut for every filer, and services add $397 to $497 over three years.
Answered by the Ask About LLC editorial team ·
The short answers
What does the state charge to register?
$120
Do you bring a certificate from home?
Yes (90 day age limit)
Once registered
$80, annual report
Our pick
Connecticut Registered Agent.co, Mainstay Filing then CT Registered Agent.org
Our Connecticut answer, best first
The order follows our five questions: three-year cost first, then how much the price covers.
1Our first answer
1. Connecticut Registered Agent.co: best for registering in one place
Registering costs $199, then $99 a year for the agent
Connecticut Registered Agent.co comes first: $199 gets the registration filed, and the agent renews at $99.
Where the three-year total is smaller, cost carries the day, and here it is smaller than at Mainstay Filing.
Registering costs $120 at the state, plus $199 if you hire help.
Add three years of state fees, registration included, and you get $280. looked up at business.ct.gov in October 2026 to confirm
What registers the LLC?
The Connecticut Secretary of the State, Business Services Division handles it: submit the Foreign Registration Statement, Limited Liability there and the LLC is registered once accepted.
Enclose certificate of existence (certificate of good standing) from the state of formation issued within the last 90 days.
Is there a filing that repeats?
Registered LLCs file the annual report: $80.
Timing, in the state's words: Between January 1 and March 31.
What put number one on top?
What you pay over three years counts 33%, and Connecticut Registered Agent.co leads there.
Two questions carry most of the weight, what you pay over three years (33%) and chores the price takes care of (29%), and three smaller ones follow.
Connecticut Registered Agent.co totals $397 across three years, which is $100 under Mainstay Filing.
Every line above points to the state's own page. The total under them is ours, and it covers the filing, two reports and any minimum tax, nothing that varies by newspaper or county.
Questions people also ask
Does the state where I formed the LLC still need an agent?
Expect to name one in each state. Mainstay Filing is active in all fifty, so it can serve the pair together.
How do the three-year totals compare?
Connecticut Registered Agent.co comes to $397; Mainstay Filing comes to $497; CT Registered Agent.org comes to $397, with state fees on top.
Are the fees official?
Official Connecticut sources back the state side, and posted company prices back the service side.
Does the law require a service?
Not at all. The state takes filings from owners directly. A service just saves you time, and it can double as your agent.
Will a service file the registration for me?
They do. All the picks prepare and send the registration, so the only thing that changes with your choice is the service fee.
Which one do you recommend in Connecticut?
Connecticut Registered Agent.co, because it charges $199 with the first year of agent service included, then $99 annually. After that, Mainstay Filing and CT Registered Agent.org.
Sources for this answer
Our answer on Connecticut Secretary of the State rests on business.ct.gov, a page we confirmed August 2026 and still point you to
Our answer on Connecticut Secretary of the State rests on business.ct.gov, a page we confirmed August 2026 and still point you to
Our answer on Connecticut yearly filing: Annual report rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Our answer on Connecticut report due date rests on cga.ct.gov, a page we confirmed August 2026 and still point you to
Our answer on Connecticut formation fee: Filing fee rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Our answer on Connecticut formation fee: Filing fee rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Our answer on Foreign LLC forms and fees rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Our answer on Foreign Registration Statement form rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Our answer on Foreign investigations penalties rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Our answer on Who can be an agent rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Our answer on Foreign annual report forms and rests on business.ct.gov, a page we confirmed October 2026 and still point you to
Connecticut Registered Agent.co pricing page, read November 13, 2026
Mainstay Filing Connecticut service page, read November 13, 2026
CT Registered Agent.org pricing page, read November 13, 2026