

Foreign registration · Form 521
Missouri LLC Foreign Registration in Wisconsin
An LLC formed in Missouri that wants to do business in Wisconsin files Form 521, with $100 in state fees. Wisconsin asks nothing of Missouri here, not even the Certificate of Good Standing. We file it with the Department of Financial Institutions, Division of Corporate and Consumer Services from your Missouri records, then serve as your registered agent there for year one.
What Missouri and Wisconsin each ask for
| Missouri formed here | Wisconsin registering here | |
|---|---|---|
| Document | Missouri Certificate of Good Standing (not needed here) | Form 521, Foreign Registration Statement |
| State fee | $10 | $100 at order |
| How it is handled | Missouri: online with a verification number anyone can check, or by mail | Filed online with Wisconsin |
| Paid expedite | next-day $100, 4-hour (in person) $250, 1-hour (in person) $500 | |
| Office | Missouri Secretary of State, Corporations Division | Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services |
| Official page | sos.mo.gov | dfi.wi.gov |
| Yearly filing | No annual report | Annual Report (Form 5 / CORP5), $80, every year |
| Due | March 31 | |
| Agent | Your Missouri registered agent | Our Wisconsin registered agent |
From Missouri to Wisconsin, step by step
We prepare and file Form 521
It names us as your Wisconsin registered agent, with your Missouri name and formation date. Nothing has to come from Missouri first, so the Wisconsin filing can go in right away. After approval, your Missouri LLC is registered with Wisconsin.
Your Missouri name and Wisconsin's rules
We check your exact Missouri name against Wisconsin's records before filing.
Your Wisconsin agent and the Missouri one
Missouri and Wisconsin both call it a registered agent. Wisconsin papers come to us; Missouri's agent is unchanged.
Yearly filings: Wisconsin and Missouri
Missouri has no annual report for LLCs; Wisconsin wants the Annual Report (Form 5 / CORP5) every year ($80). Both states' filings stay current side by side.
LLC or corporation, Missouri to Wisconsin
A corporation formed in Missouri files Form 21 with Wisconsin ($100 in state fees, the same, plus the Certificate of Good Standing ($10)). After that come Missouri's Corporate Registration Report ($15) and Wisconsin's Foreign Business Corporation Annual Report ($65). See the corporation filing.
Registering a Wisconsin company in Missouri
An LLC formed in Wisconsin that registers with Missouri files Form LLC 4 with $105 in state fees, plus the Certificate of Status ($10) dated within 60 days. See that filing.
Questions Missouri owners ask about Wisconsin
Does my Missouri company need to register in Wisconsin?
Yes, once a Missouri business operates there; Wisconsin law lists 11 activities that do not count on their own.
How much does the Wisconsin registration cost?
$299 at checkout, with nothing to pay Missouri.
Do I need Missouri's certificate of good standing?
No, Wisconsin takes Form 521 without it.
What are the yearly costs for Missouri and Wisconsin?
Our registered agent renewal ($149 a year), no Missouri yearly report and Wisconsin's report ($80).
What if I don't register with Wisconsin?
A Missouri 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 Missouri registered agent stays, and ours covers Wisconsin for year one.
Can I form a new Wisconsin LLC instead?
Yes, but Missouri keeps the original, so you run two companies: the new one files Wisconsin's Annual Report (Form 5 / CORP5) ($25), and Missouri has no yearly report for the original.
How do I withdraw from Wisconsin later?
Missouri companies leave by filing a Withdrawal of Registration of Foreign Limited Liability Company; until then, Wisconsin's report stays due alongside Missouri's filings.
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