Mainstay Filing takes the top spot because the fee is $199 plus the state's own, with a free first year as registered agent, and the price is identical in every state.
Year one as agent costs nothing; every year after it is $149, wherever the company registers.
Its three-year total is $100 above Connecticut Registered Agent.co's, and what the price covers justifies that gap for us.
In the price
- The registration filing prepared and submitted
- Your registered agent for year one at no charge
- Papers served on the company scanned free on the day they arrive
Good
- Papers served on the company are scanned the same business day at no charge
- $199 service fee, with the state's fee added
- The same price in each of the fifty states
- No charge for registered agent service in year one
Watch for
- The agent is $149 a year after year one, $50 above Connecticut Registered Agent.co
Connecticut Registered Agent.co makes the list at number two because the Connecticut registration is $199 and includes year one as agent, with $99 a year after that.
The registered office is an in-state street address supplied by the plan, and any papers served on the company show up as scans in your online account.
In the price
- Foreign registration done for you
- One year of registered agent service to start
Good
- $199 for the service, state fee extra
- $99 a year afterward for the agent
- First-year registered agent service is part of the deal
Watch for
- Connecticut only; your home state needs its own agent
- The EIN application is an extra charge ($99)
CT Registered Agent.org makes the list at number three because the Connecticut registration is $199 and includes year one as agent, with $99 a year after that.
The registered office is an in-state street address supplied by the plan, and any papers served on the company show up as scans in your online account.
The published prices and features of Connecticut Registered Agent.co and CT Registered Agent.org are identical, so the order between them is a coin flip between solid options.
In the price
- Foreign registration done for you
- One year of registered agent service to start
Good
- Covers your first year of registered agent service
- Registration costs $199 before the state fee
- The agent is $99 a year from year two
Watch for
- Connecticut only; your home state needs its own agent
- The EIN application is an extra charge ($99)
The 3 picks side by side
Filing Shortlist sets each score out of 10 itself, using the criteria on How we rank; no customer ratings feed in.
Connecticut foreign registration service pricing in 2026: first year, renewals, three-year total
Every price comes from the company's own pages as of November 12, 2026. The $120 Connecticut registration fee comes on top of each row and is left out of the totals.
How the order came together
On Filing Shortlist's shortlist, three-year price and what the price covers carry 28% each and renewal terms, fit for the state and price clarity share the other 44%. In Connecticut, what the price covers made the difference.
Registering in a second state touches two states, and one provider with one price in both scored highest on coverage, ahead of Connecticut Registered Agent.co.
Every criterion and weight is set out on How we rank.
Registering a foreign LLC in Connecticut: fee, form and office
Registration goes to the Connecticut Secretary of the State, Business Services Division on the Foreign Registration Statement, Limited Liability. The state fee is $120. Along with the form, Connecticut expects certificate of existence (certificate of good standing) from the state of formation, no older than 90 days when you file.
Each year after that, the company files the annual report for $80, due between January 1 and March 31.
What to have ready before you file
- Certificate of existence (certificate of good standing) from the state of formation, dated within 90 days of filing.
- The company's exact legal name and its formation date in the home state.
- A registered agent at a street address in the state. Every company on this shortlist can be that agent.
- Payment of the $120 state fee with the filing.
- A reminder in your own calendar for the annual report and its $80 fee.
The cost of skipping Connecticut registration
Fees for the unregistered period come due as well.
Common questions about Connecticut foreign registration services
Must an LLC from another state register in Connecticut?
It must, once it does business in the state.
What is the full price of a foreign LLC registration in Connecticut?
The state fee is $120, and service fees run $199.
Does Connecticut ask for proof of good standing from home?
It does. The state wants certificate of existence (certificate of good standing) from the state of formation, dated no more than 90 days before the filing.
Does a registered foreign LLC still need a registered agent?
Yes. The company keeps a registered agent in the state, at a street address there, for as long as it stays registered.
Which foreign registration services made this shortlist?
Mainstay Filing ($199), Connecticut Registered Agent.co ($199) and CT Registered Agent.org ($199), listed from the top pick down.
Which service leads the Connecticut foreign registration shortlist?
Mainstay Filing, because it charges $199 on top of the state fee, serves as registered agent free for year one and prices every state the same.
Where the figures come from
- Connecticut Secretary of the State, Business Services Division (checked again August 2026)
- Connecticut Secretary of the State, Business Services Division (checked again August 2026)
- Connecticut yearly filing: Annual report: fee, official source (checked again October 2026)
- Connecticut report due date (checked again August 2026)
- Connecticut formation fee: Filing fee, official source (checked again October 2026)
- Connecticut formation fee: Filing fee, official source (checked again October 2026)
- Foreign LLC forms and fees, Business.CT.gov (checked again October 2026)
- Foreign Registration Statement form (checked again October 2026)
- Foreign investigations penalties (checked again October 2026)
- Who can be an agent (checked again October 2026)
- Foreign annual report forms and fees (checked again October 2026)
- Pulled from Mainstay Filing: Connecticut service page, November 12, 2026
- Pulled from Connecticut Registered Agent.co: pricing and service pages, November 12, 2026
- Pulled from CT Registered Agent.org: pricing and service pages, November 12, 2026