Registered Agent Change › Connecticut
How to change your registered agent in Connecticut
File the Change of Agent (BUS-09) with the Connecticut Secretary of the State — Business Services Division (paper or online via business.ct.gov). The state fee is $50. Moving to Mainstay Filing makes the first year $199 in all.
The filing
- Form
- Change of Agent, BUS-09
- Filed with
- Connecticut Secretary of the State — Business Services Division (paper or online via business.ct.gov)
- State fee
- $50 Our research holds a second figure ($20) for this filing, so confirm the amount on the form with the Connecticut Secretary of State before you pay.
- Law
- Conn. Gen. Stat. § 34-243n
- Who can serve
- A Connecticut resident, or a business entity formed in Connecticut or registered there. The agent signs to accept the appointment.
- Address rule
- 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.
The steps in Connecticut
- Settle the new agent. Required: Every LLC must name a registered agent with an in-state street address.
- Fill in the form. Use the Change of Agent; it names the new agent and address.
- File and pay. Pay $50. Keep the acceptance.
- Close out the old service before its renewal date.
With Mainstay Filing as the new agent
$149 a year, renewing at $149, plus the $50 state fee once. Service of process is scanned and uploaded the same business day at no fee.
Or serve yourself
Connecticut does not let the LLC be its own agent; an owner may qualify only as an individual, so check with the Connecticut Secretary of State.
How much does it cost to change a registered agent in Connecticut?
The state fee is $50 (Connecticut Secretary of the State — Business Services Division (paper or online via business.ct.gov)). Our research holds a second figure ($20) for this filing, so confirm the amount on the form with the Connecticut Secretary of State before you pay. The new agent’s price is separate.
Who can be my registered agent in Connecticut?
A Connecticut resident, or a business entity formed in Connecticut or registered there. The agent signs to accept the appointment. Law: Conn. Gen. Stat. § 34-243n.
Sources
- Connecticut Change of Agent, form page: business.ct.gov/-/media/BusinessOneStop/BSD_Forms/LLC---20211221/BUS-009_CHANGE_OF_AGENT_DOMESTIC-fillable.pdf, checked August 12, 2026
- Connecticut fee source: business.ct.gov/manage/all-business-filings/llc-forms, checked August 12, 2026
- Connecticut registered agent statute (Conn. Gen. Stat. § 34-243n): www.cga.ct.gov/current/pub/chap_613a.htm, checked October 20, 2026