Doing Business in Another State

Doing Business in Another State › States › Connecticut

Doing business in Connecticut from another state

If your LLC does business in Connecticut as Connecticut defines it, you register with the Connecticut Secretary of the State, Business Services Division for $120.

Step 1: put these questions to Connecticut’s law

  1. An employee or contractor works from the state. Ask whether the statute counts work done by people located in the state, and whether employees and independent contractors are treated alike.
  2. You sell to customers there but have no one on the ground. Ask whether the statute treats sales from outside the state differently from activity inside it.
  3. The LLC owns or leases property there. Ask whether owning or leasing real estate is listed as an activity that does, or does not, count.
  4. You open an office, shop or warehouse. Ask whether a fixed place of business is named in the statute. Settle the answer before you sign a lease.
  5. You hold meetings or keep a bank account there. Ask whether the statute lists these ancillary activities, and whether they count by themselves.

The law, as listed in the state’s own sources: Connecticut General Statutes, chapter 613a.

Step 2: if the answer is yes

Form
Foreign Registration Statement, Limited Liability
Fee
$120
Paper from your home state
Certificate of existence (certificate of good standing) from the state of formation, no older than 90 days
Agent
A registered agent in Connecticut

Best 3 Foreign Registration Services in Connecticut (2026)

Step 3: if you would rather not file it yourself.

#ServiceService feeConnecticut feeAgent
1Mainstay Filing$199$120Year one included, then $149/yr
2CT Registered Agent.org$199$120Year one included, then $99/yr
3Connecticut Registered Agent.co$199$120Year one included, then $99/yr

Service prices read from each provider’s Connecticut page on October 28, 2026. The state fee is the official figure below and is paid to the Connecticut Secretary of the State, Business Services Division.

Connecticut questions

When does an LLC from another state have to register in Connecticut?

When its activity in Connecticut meets Connecticut’s own definition of doing business. We do not paraphrase it; read it in the law linked below.

What does registering in Connecticut cost?

$120 to the Connecticut Secretary of the State, Business Services Division.

What is required after registering?

Annual report (Connecticut Secretary of the State), $80 (due: between January 1 and March 31), and a registered agent in Connecticut.

Sources