Registered Agent by ZIP › Connecticut
Registered agent in Connecticut (2026)
Connecticut ZIP codes begin with 060-069. Required: every LLC needs an agent with an in-state street address Mainstay Filing, our best overall pick, serves Connecticut at $149 a year; the state fee to change agents is $50.
- Connecticut rules checked October 20, 2026
Connecticut agent requirements
- Requirement
- Required. A Connecticut resident, or a business entity formed in Connecticut or registered there. The agent signs to accept the appointment.
- Agent 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.
- ZIP code prefixes
- 060-069 (63 shared with a neighboring state)
- Change-of-agent fee
- $50
- Statute
- Conn. Gen. Stat. § 34-243n
- Filing office
- Connecticut Secretary of State
Mainstay Filing
$149 / year, same at renewal
- Registered agent address in Connecticut
- Mail and legal-document scanning and forwarding
- Compliance reminders
Checked October 20, 2026.
Providers with a published Connecticut price
| Provider | Year 1 | Renewal |
|---|---|---|
| Mainstay Filing | $149 | $149 |
| Standard Filings | $199 | $199 |
| ResidentAgents.com | $129 | $129 |
| Northwest Registered Agent | $125 | $125 |
| ZenBusiness | $99 | $199 |
| Bizee | $149 | $149 |
| LegalZoom | $249 | $249 |
Questions
Who can be a registered agent in Connecticut?
A Connecticut resident, or a business entity formed in Connecticut or registered there. The agent signs to accept the appointment.
What address must a Connecticut registered agent have?
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 does it cost to change registered agents in Connecticut?
The state charges $50 to file the change (Conn. Gen. Stat. § 34-243n).
Which ZIP codes are in Connecticut?
Connecticut ZIP codes begin with 060-069. The prefix 63 also serve addresses in a neighboring state. The ZIP code tells you the state; the agent rules above apply in all of them.
Sources
- Connecticut registered agent statute (Conn. Gen. Stat. § 34-243n): www.cga.ct.gov/current/pub/chap_613a.htm, checked October 20, 2026
- Connecticut Secretary of State: portal.ct.gov/sots, checked October 20, 2026
- Provider registered agent pages (prices), checked October 20, 2026