Foreign registration · no form number

South Dakota Corporation Foreign Registration in Connecticut

A corporation formed in South Dakota that wants to do business in Connecticut files an online registration (no form number), with $385 in state fees. Connecticut may ask for South Dakota's Certificate of Good Standing/Existence ($20). We file it with the Secretary of the State, Business Services Division using your South Dakota records and act as your registered agent there for the first year.

What South Dakota and Connecticut each ask for

	South Dakota formed here	Connecticut registering here
Document	South Dakota Certificate of Good Standing/Existence	Application for Certificate of Authority (Foreign Corporation) (no form number)
State fee	$20	$385 at order
How it is handled	South Dakota: online	Filed online with Connecticut
Paid expedite		$50
Office	South Dakota Secretary of State	Connecticut Secretary of the State, Business Services Division
Official page	sosenterprise.sd.gov	business.ct.gov
Yearly filing	Annual Report, fee set by the state, every year	Annual Report, $435, every year
Due	By the first day of the registration anniversary month each year (form opens that day	Anniversary date of registration in Connecticut
Agent	Your South Dakota registered agent	Our Connecticut registered agent

From South Dakota to Connecticut, step by step

We prepare and file the registration
It names us as your Connecticut registered agent, with your South Dakota name and formation date. If Connecticut wants the South Dakota certificate, it is ordered first. After approval, your South Dakota corporation is registered with Connecticut.

Your South Dakota name and Connecticut's rules

We search Connecticut's records for South Dakota's name on file before anything is filed.

Agents: Connecticut and South Dakota

South Dakota and Connecticut both call it a registered agent. Your current registered agent stays for South Dakota; ours takes Connecticut's papers and notices.

Yearly filings: Connecticut and South Dakota

South Dakota wants the Annual Report every year; Connecticut wants the Annual Report every year ($435). Both states' filings stay current side by side.

LLC or corporation, South Dakota to Connecticut

An LLC formed in South Dakota files its own registration with Connecticut ($120 in state fees, plus the Certificate of Good Standing/Existence ($20)). After that come South Dakota's Annual Report ($55) and Connecticut's Annual Report ($80). See the LLC filing.

The other way: Connecticut into South Dakota

A corporation formed in Connecticut that registers with South Dakota files South Dakota's registration (no form number) with $750 in state fees, plus the Certificate of Legal Existence ($80). See that filing.

Questions South Dakota owners ask about Connecticut

Does my South Dakota company need to register in Connecticut?

Yes, once a South Dakota business operates there; Connecticut registers it as a foreign corporation.

Is this a certificate of authority?

Yes: Connecticut issues one to South Dakota corporations once the filing is approved.

How much does it cost to register a South Dakota corporation in Connecticut?

$584 at checkout; Connecticut may also want South Dakota's Certificate of Good Standing/Existence, at extra cost.

What are the yearly costs for South Dakota and Connecticut?

Our registered agent renewal ($149 a year), South Dakota's report (fee set by the state) and Connecticut's report ($435).

Does Connecticut require a registered agent?

Yes: the South Dakota registered agent stays, and ours covers Connecticut for year one.

Can I form a new Connecticut corporation instead?

Yes, but South Dakota keeps the original, so you run two companies: the new one files Connecticut's Annual Report ($150), and the original keeps South Dakota's Annual Report.

How do I withdraw from Connecticut later?

South Dakota companies leave by filing an Application for Certificate of Withdrawal; until then, Connecticut's report stays due alongside South Dakota's filings.

What does a Connecticut company file to register in South Dakota?

It files South Dakota's registration with $750 in state fees, plus Connecticut's good standing certificate.

Official sources

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The same move for an LLC