Rank1
Top pick on this page
1. CT Registered Agent.org: best for the smallest yearly fee on this list
$99 yearly, unchanged
Editor score9.1out of 10
CT Registered Agent.org takes the top spot because the plan is $99 a year, flat, and papers served on the company reach you as online scans.
CT Registered Agent.org gives the company a street address in the state and scans whatever is served there into your account.
It costs less than Mainstay Filing over three years, and cost is one of our two heaviest criteria.
In the price
- The physical in-state address the state asks for
- Anything served on the company is scanned and posted to your account
Good
- Costs $99 a year, renewal included at the same price
- Yearly cost below Mainstay Filing
- Also files LLC formations, agent year one included
Watch for
- You handle the annual report yourself
- Made for Connecticut; another state needs a different agent
Mainstay Filing makes the list at number two because the price is $149 a year whether you stay in one state or add more, with three government letters a year scanned at no charge.
Starting from scratch? The formation package is $199 a year and adds the Connecticut filing and the annual report.
CT Registered Agent.org undercuts it by $150 across three years, which leaves Mainstay Filing second on cost.
In the price
- A registered office street address in whichever state you need
- Papers served on the company scanned free on the day they arrive
- Three government letters a year scanned free
- Compliance reminders
Good
- Free scans of three government letters each year
- Papers served on the company are scanned the same business day at no charge
- Takes LLCs, corporations, LPs, LLPs and nonprofits
- $149 a year, and it holds at renewal
Watch for
- The agent alone is $50 a year more than CT Registered Agent.org
- Annual report filing sits with the formation package, not the agent plan
Rank3
Connecticut only
3. Connecticut Registered Agent.co: best for Connecticut specialists
$99 yearly, unchanged
Editor score8.3out of 10
Connecticut Registered Agent.co makes the list at number three because the plan is $99 a year, flat, and papers served on the company reach you as online scans.
Connecticut Registered Agent.co gives the company a street address in the state and scans whatever is served there into your account.
We found no difference in price or features between CT Registered Agent.org and Connecticut Registered Agent.co; choose whichever you prefer.
In the price
- A street address in the state as the registered office
- Papers served on the company are scanned into your online account
Good
- Yearly cost below Mainstay Filing
- Also files LLC formations, agent year one included
- $99 a year, and it stays put at renewal
Watch for
- You handle the annual report yourself
- Made for Connecticut; another state needs a different agent
The 3 picks side by side
Each number out of 10 is our own mark, drawn from the weighted criteria on How we rank, and not a customer rating.
Connecticut registered agent pricing in 2026: first year, renewals, three-year total
Every price comes from the company's own pages as of November 12, 2026. Connecticut's own fees stay the same whichever agent you pick.
How the cut was made
Filing Shortlist puts 28% of the weight on three-year price and 28% on what the price covers. The remaining 44% goes to renewal terms, fit for the state and price clarity, and for Connecticut the deciding factor was three-year price.
CT Registered Agent.org adds up to $297 over three years, which is $150 below Mainstay Filing. A company with a Connecticut agent need gains little from fifty-state reach, so the smaller yearly price settled it.
Every criterion and weight is set out on How we rank.
Connecticut registered agent rules from Connecticut Secretary of State
Every LLC must name a registered agent with an in-state street address. The address has to be a Connecticut street address that is not a P.O. box, plus a Connecticut mailing address, which can be a P.O. box. Statute: Conn. Gen. Stat. § 34-243n.
The Connecticut annual report: price and deadline
Every company formed here files the annual report every year. The state charges $80 and wants it on or before March 31. The reminders about it go to your registered agent.
Common questions about Connecticut registered agents
Does the company need to name a registered agent in Connecticut?
It does. Connecticut wants each LLC to name a registered agent with a street address inside the state, and that name stays on the public record.
How much do agents in Connecticut charge per year?
Yearly prices span $99 to $149, and each company holds its price at renewal.
Can the owner be the registered agent?
Yes, if you meet the state's conditions. A Connecticut resident, or a business entity formed in Connecticut or registered there. The agent signs to accept the appointment.
By what date is the Connecticut annual report due?
The deadline is on or before March 31, and the state charges $80.
Which registered agents made this shortlist?
CT Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Connecticut Registered Agent.co ($99 a year), listed from the top pick down.
Which Connecticut registered agent makes the shortlist first?
CT Registered Agent.org, because it charges $99 a year, the same at renewal, the smallest yearly price on this list.
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)
- Pulled from CT Registered Agent.org: pricing and service pages, November 12, 2026
- Pulled from Mainstay Filing: Connecticut service page, November 12, 2026
- Pulled from Connecticut Registered Agent.co: pricing and service pages, November 12, 2026