

Foreign registration · Form 21
Connecticut Corporation Foreign Registration in Wisconsin
A corporation formed in Connecticut that wants to do business in Wisconsin files Form 21, with $100 in state fees. Wisconsin also asks for Connecticut's Certificate of Legal Existence ($80), no older than 60 days. We file it with the Department of Financial Institutions, Division of Corporate and Consumer Services from your Connecticut records, then serve as your registered agent there for year one.
What Connecticut and Wisconsin each ask for
| Connecticut formed here | Wisconsin registering here | |
|---|---|---|
| Document | Connecticut Certificate of Legal Existence | Form 21, Application for Certificate of Authority |
| State fee | $80 | $100 at order |
| How it is handled | Connecticut: online, with an express version, or by mail | Filed on Wisconsin's paper form |
| 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 |
| Age rule | Dated when issued | Accepted if dated within 60 days |
| Yearly filing | Annual Report, $150, every year | Foreign Business Corporation Annual Report, $65, every year |
| Due | Anniversary date of the filing of the first annual report | March 31 each year after qualification |
| Agent | Your Connecticut registered agent | Our Wisconsin registered agent |
How Connecticut companies register with Wisconsin
Order the Connecticut certificate
The Certificate of Legal Existence ($80) is ordered from Connecticut separately; it is not part of our Wisconsin order. It comes as a short form ($80) or a long form ($120). Wisconsin accepts it within 60 days of Connecticut's issue date, so it is ordered shortly before filing.
We prepare and file Form 21
It names us as your Wisconsin registered agent, with your Connecticut name and formation date and the certificate attached. Once Connecticut's certificate is in hand, Wisconsin's filing goes in. After approval, your Connecticut corporation is registered with Wisconsin.
Wisconsin costs for Connecticut companies
| Item | Amount |
|---|---|
| State fees, paid at order | $100 |
| Certificate of Legal Existence, paid to Connecticut | $80 |
| Our service, with a year of Wisconsin registered agent service | $199 |
| First-year total, Connecticut certificate included | $379 |
Wisconsin's paid expedite is optional and not in the total.
Will your Connecticut name work for Wisconsin?
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.
Staying in good standing in Connecticut and Wisconsin
Each year your corporation files Connecticut's Annual Report ($150) and Wisconsin's Foreign Business Corporation Annual Report ($65). With our $149 registered agent renewal, Connecticut plus Wisconsin comes to $364 a year. Both states' filings stay current side by side.
LLC or corporation, Connecticut to Wisconsin
An LLC formed in Connecticut files Form 521 with Wisconsin ($100 in state fees, the same; no home-state certificate is needed). After that come Connecticut's Annual Report ($80) and Wisconsin's Annual Report (Form 5 / CORP5) ($80). See the LLC filing.
The other way: Wisconsin into Connecticut
A corporation formed in Wisconsin that registers with Connecticut files Connecticut's registration (no form number) with $385 in state fees. 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 does not count a one-off deal finished within 30 days.
Is this a certificate of authority?
Yes: Wisconsin issues one to Connecticut corporations once the form is approved.
How much does it cost to register a Connecticut corporation in Wisconsin?
$299 at checkout plus $80 to Connecticut for the Certificate of Legal Existence, $379 in all (checkout is $100 in state fees plus our $199).
Do I need Connecticut's certificate of good standing?
Yes: Wisconsin wants Connecticut's Certificate of Legal Existence ($80), no more than 60 days old at filing.
What are the yearly costs for Connecticut and Wisconsin?
$364 a year: our $149 registered agent renewal, $150 to Connecticut and $65 to Wisconsin for the yearly reports.
What if I don't register with Wisconsin?
Wisconsin can charge a Connecticut company up to $65 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 corporation instead?
Yes, but Connecticut keeps the original, so you run two companies: the new one files Wisconsin's Domestic Business Corporation Annual Report ($25), and the original keeps Connecticut's Annual Report.
Official sources
People also search
Corporation into Wisconsin, by home state (48)
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wyoming
Connecticut into other states (41)
- Alabama
- Alaska
- Arizona
- California
- Colorado
- Delaware
- Florida
- Idaho
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Washington
- West Virginia
- Wyoming