3 Best LLC Services in Wisconsin (2026), Ranked for You
Start with this 2026 ranking of LLC formation services in Wisconsin: Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199), in that order. The costs split into $130 for the state and $397 to $597 for three years of service.
Written by the Simple Filing Guide editorial team
Start here
What you pay the state
$130, at filing
Later years
$25 each twelve months
Registered agent
Required
First choices
Mainstay Filing, Wisconsin Registered Agent.co then WI Registered Agent.org
Prices as of November 13, 2026; the state's own fees are listed in the checklist below.
The key questions
How much money do I need to set aside?
On your own it is $130. With a service, it is $199 more.
Counting the recurring report, the state's own fees reach $180 by year three. verify at dfi.wi.gov, as of October 2026
What starts the LLC?
When the Department of Financial Institutions (DFI) approves the Articles of Organization - Limited Liability Company (Form 502), your LLC exists.
Read the rule: Wis. Stat. § 183.0201. verify at dfi.wi.gov, as of October 2026
Must I name a registered agent?
Every LLC must name a registered agent with an in-state street address.
A Wisconsin resident, or a business entity formed in Wisconsin or authorized there, whose business office is the registered office. The agent needs an email address and has to consent.
Expect the annual report to come back every year, at $25 each time. In the state's words it is due end of the calendar quarter containing the LLC's anniversary date, so mark the date.
Every amount above links to its official source. The last row is our own total of the filing, two reports and any minimum tax, without variable costs like publication.
Quick answers
What about the EIN?
It is free at Mainstay Filing. The remaining picks charge $99 (Wisconsin Registered Agent.co), $99 (WI Registered Agent.org).
What if the report is late?
$25 is added to the report fee.
How do the three-year costs compare?
Mainstay Filing adds up to $597, Wisconsin Registered Agent.co adds up to $397, WI Registered Agent.org adds up to $397 (services only).
Where do you get the fees?
State-set fees come from Wisconsin's publications; what services charge comes from the prices they post.
Do I have to use a service?
Hiring is optional. The law requires a filing, not a filer.
Which one do you recommend in Wisconsin?
Mainstay Filing leads on filing jobs included, ahead of Wisconsin Registered Agent.co and WI Registered Agent.org.
References
Source for Wisconsin Department of Financial Institutions: dfi.wi.gov, August 2026
Source for Wisconsin Department of Financial Institutions: dfi.wi.gov, August 2026