Foreign registration · Form 521

Connecticut LLC Foreign Registration in Wisconsin

To do business in Wisconsin, an LLC formed in Connecticut registers there on Form 521, with $100 in state fees. Wisconsin needs nothing from Connecticut: no Certificate of Legal Existence. We file it with the Department of Financial Institutions, Division of Corporate and Consumer Services using your Connecticut records and act as your registered agent there for the first year.

Connecticut and Wisconsin side by side

	Connecticut formed here	Wisconsin registering here
Document	Connecticut Certificate of Legal Existence (not needed here)	Form 521, Foreign Registration Statement
State fee	$50	$100 at order
How it is handled	Connecticut: online, with an express version, or by mail	Filed online with Wisconsin
Paid expedite		next-day $100, 4-hour (in person) $250, 1-hour (in person) $500
Office	Connecticut Secretary of the State, Business Services Division	Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services
Official page	business.ct.gov	dfi.wi.gov
Yearly filing	Annual Report, $80, every year	Annual Report (Form 5 / CORP5), $80, every year
Due	On or before March 31	March 31
Agent	Your Connecticut registered agent	Our Wisconsin registered agent

How Connecticut companies register with Wisconsin

We prepare and file Form 521
It names us as your Wisconsin registered agent, with your Connecticut name and formation date. No Connecticut paperwork holds up the Wisconsin filing. Once Wisconsin approves it, the Connecticut company can do business there.

Your Connecticut name and Wisconsin's rules

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

Agents: Wisconsin and Connecticut

Connecticut and Wisconsin both call it a registered agent. Wisconsin papers come to us; Connecticut's agent is unchanged.

Yearly filings: Wisconsin and Connecticut

Each year your LLC files Connecticut's Annual Report ($80) and Wisconsin's Annual Report (Form 5 / CORP5) ($80). With our $149 registered agent renewal, Connecticut plus Wisconsin comes to $309 a year. Both states' filings stay current side by side.

LLC or corporation, Connecticut to Wisconsin

A corporation formed in Connecticut files Form 21 with Wisconsin ($100 in state fees, the same, plus the Certificate of Legal Existence ($80)). After that come Connecticut's Annual Report ($150) and Wisconsin's Foreign Business Corporation Annual Report ($65). See the corporation filing.

Registering a Wisconsin company in Connecticut

An LLC formed in Wisconsin that registers with Connecticut files Connecticut's registration (no form number) with $120 in state fees, plus the Certificate of Status ($10) dated within 90 days. See that filing.

Common questions: Connecticut to Wisconsin

Does my Connecticut company need to register in Wisconsin?

Yes, once a Connecticut business operates there; Wisconsin law lists 11 activities that do not count on their own.

How much does it cost to register a Connecticut LLC in Wisconsin?

$299 at checkout, with nothing to pay Connecticut.

Do I need Connecticut's certificate of good standing?

No, Wisconsin takes Form 521 without it.

What are the yearly costs for Connecticut and Wisconsin?

$309 a year: our $149 registered agent renewal, $80 to Connecticut and $80 to Wisconsin for the yearly reports.

What if I don't register with Wisconsin?

A Connecticut company cannot sue in court there until it registers, and Wisconsin can add up to $97.50 for each year or part of a year.

Does Wisconsin require a registered agent?

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

Can I form a new Wisconsin LLC instead?

Yes, but Connecticut keeps the original, so you run two companies: the new one files Wisconsin's Annual Report (Form 5 / CORP5) ($25), and the original keeps Connecticut's Annual Report.

How do I withdraw from Wisconsin later?

Connecticut companies leave by filing a Withdrawal of Registration of Foreign Limited Liability Company; until then, Wisconsin's report stays due alongside Connecticut's filings.

Official sources

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