The explanation · Connecticut
3 Best Registered Agents in Connecticut (2026): What You Get
The essentials
- Does the law demand one?
- Must be named
- Legal title
- Registered agent
- Price of a service
- $99 to $149 every year
- Services we suggest
- Connecticut Registered Agent.co, Mainstay Filing then CT Registered Agent.org
Our Connecticut recommendations
The order comes from our method: three-year cost first, then how much work the price covers.1. Connecticut Registered Agent.co: best for LLCs staying in one state
$99 in year one and $99 when renewed
Why Connecticut Registered Agent.co? Its agent service is $99 a year and includes a street address on file.
A lower three-year total than Mainstay Filing gives it the lead for a company that stays put.
Includes
- An in-state office address
- Scanned copies of legal papers online
Points in its favor
- Costs less each year than Mainstay Filing
- $99 annually, flat
Where it falls short
- A one-state service
- The annual report remains your task
2. Mainstay Filing: best for owners planning to grow
$149 in year one and $149 when renewed
Number 2 on the list is Mainstay Filing, where it costs $149 a year, renewing at $149, and one account serves any state.
Connecticut Registered Agent.co is $150 less over three years, which is enough to place it higher.
Includes
- A street address in the state
- Up to three government mailings a year scanned for free
- Not just LLCs: corporations, LPs, LLPs and nonprofits too
Points in its favor
- Usable wherever the LLC registers
- $149 a year, unchanged at renewal
Where it falls short
- Costs $50 more annually
- Reports are not part of the agent plan
3. CT Registered Agent.org: best for a second local choice
$99 in year one and $99 when renewed
In third place is CT Registered Agent.org, because its agent service is $99 a year and includes a street address on file.
Price for price, it matches Connecticut Registered Agent.co.
Includes
- An in-state office address
- Scanned copies of legal papers online
Points in its favor
- $99 annually, flat
- Costs less each year than Mainstay Filing
Where it falls short
- A one-state service
- The annual report remains your task
The picks compared
| # | Company | Year one | Each year after | Total, 3 years | What you get | |
|---|---|---|---|---|---|---|
| 1 | Connecticut Registered Agent.co | $99 | $99/yr | $297 | An in-state office address; scanned copies of legal papers online | Open Connecticut Registered Agent.coPartner link. We may earn money if you buy. |
| 2 | Mainstay Filing | $149 | $149/yr | $447 | A street address in the state; up to three government mailings a year scanned for free; Not just LLCs: corporations, LPs, LLPs and nonprofits too | Open Mainstay FilingPartner link. We may earn money if you buy. |
| 3 | CT Registered Agent.org | $99 | $99/yr | $297 | An in-state office address; scanned copies of legal papers online | Open CT Registered Agent.orgPartner link. We may earn money if you buy. |
Questions explained
Is naming a registered agent optional?
Every LLC must name a registered agent with an in-state street address.
Read the law: Conn. Gen. Stat. § 34-243n. cga.ct.gov, confirmed October 2026
Can just anyone act as agent?
A Connecticut resident, or a business entity formed in Connecticut or registered there. The agent signs to accept the appointment.
If you meet the rule, you may name yourself and avoid paying an agent.
How much does an agent charge?
Prices start at $99 to $149 a year and total $297 to $447 for three.
No state fee depends on which agent you pick.
What does the agent handle?
It accepts lawsuits and official state mail for the LLC at an address in Connecticut.
A service is only as useful as its forwarding, so ask how documents reach you. Learn about service of process
Are there yearly state charges?
Plan on $80 every year for the annual report. The state sets the deadline as on or before March 31; put it in your calendar.
business.ct.gov, confirmed October 2026
What decided the ranking?
Connecticut Registered Agent.co leads on what three years cost, a criterion that carries 34% of the weight.
Five criteria set the order: what three years cost (34%), how much work the price handles (28%), prices spelled out (16%), renewal terms (12%) and reach beyond one state (10%).
Over three years Connecticut Registered Agent.co totals $297, which is $150 below Mainstay Filing.
What Connecticut requires
| Requirement | Detail | Official source |
|---|---|---|
| Fee to file the LLC | $120 | business.ct.gov, confirmed October 2026 |
| Registered agent | Must be named | cga.ct.gov, confirmed October 2026 |
| Annual report | $80 every year | business.ct.gov, confirmed October 2026 |
| Paid to the state in three years | $280 | Our total of the rows above |
FAQ
May I be my own agent?
Yes, as long as your address and status match what the state demands.
What counts as an acceptable 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.
What is the three-year price of each?
Connecticut Registered Agent.co: $297 | Mainstay Filing: $447 | CT Registered Agent.org: $297
What are the figures based on?
Each state fee links to its official source, and each service price comes from the company's website.
Do I have to hire a service?
No. The state takes filings from owners directly; a service just saves time and covers the agent role.
Who would you hire first in Connecticut?
We would start with Connecticut Registered Agent.co, then Mainstay Filing and CT Registered Agent.org.
Sources used on this page
- Connecticut Secretary of the State via business.ct.gov, as of August 2026
- Connecticut Secretary of the State via business.ct.gov, as of August 2026
- Connecticut yearly filing: Annual report via business.ct.gov, as of October 2026
- Connecticut report due date via cga.ct.gov, as of August 2026
- Connecticut formation fee: Filing fee via business.ct.gov, as of October 2026
- Connecticut formation fee: Filing fee via business.ct.gov, as of October 2026
- Connecticut Registered Agent.co, pricing page, accessed November 13, 2026
- Mainstay Filing, Connecticut service page, accessed November 13, 2026
- CT Registered Agent.org, pricing page, accessed November 13, 2026