3 Best LLC Services in Wisconsin (2026), and What to Know First
Wondering about LLC formation services in Wisconsin, for 2026 our order is Wisconsin Registered Agent.co ($199), WI Registered Agent.org ($199) and Mainstay Filing ($199). Every option pays Wisconsin $130 to file, then charges $397 to $597 for three years of service.
Answered by the Ask About LLC editorial team ·
The short answers
State fee to file
$130, one time
Every year after
$25 a year
Registered agent
Yes, the law says so
Our pick
Wisconsin Registered Agent.co, WI Registered Agent.org then Mainstay Filing
3. Mainstay Filing: best for owners who want upkeep handled
Annual price $199, renewal price $199, state fee on top
Mainstay Filing is the third answer because the annual report is filed for you inside the $199 yearly price, along with formation and the registered agent.
Why is it not higher? Three years cost $200 more than at Wisconsin Registered Agent.co, and price is what we weigh most.
The annual report gets filed by Mainstay Filing, and Wisconsin's $25 is passed on at cost.
What the price covers
Formation paperwork submitted
Registered agent for the whole year
Annual report prepared and submitted
EIN application
No markup on state fees
Good news
No charge for the EIN application
$199 yearly covers everything listed
Year two costs $199
The catch
From year two you pay $100 more than at Wisconsin Registered Agent.co
Prices as of November 13, 2026. The state's own fees are in the checklist below.
What owners want to know
How much money do I need to start?
The state charges $130, and a service that files for you in year one adds $199.
Over three years the state collects $180, filing fee included. looked up at dfi.wi.gov in October 2026 to confirm
What do I actually send the state?
The paper that starts the company is the Articles of Organization - Limited Liability Company (Form 502), and it is submitted to the Department of Financial Institutions (DFI).
Legal basis: Wis. Stat. § 183.0201. looked up at dfi.wi.gov in October 2026 to confirm
Can the LLC go without 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.
The annual report repeats every year, at $25 each time. Due date, as the state puts it: end of the calendar quarter containing the LLC's anniversary date.
How was the bottom line figured? Add the filing fee, the next two reports and the minimum tax if the state has one. Anything with no fixed price, a newspaper notice for instance, is described above and kept out of the sum.
Still wondering?
Is the EIN application included?
Mainstay Filing includes the EIN application. The others charge extra: Wisconsin Registered Agent.co $99; WI Registered Agent.org $99.
Is there a late fee?
Wisconsin adds $25.
What do the picks cost over three years?
Wisconsin Registered Agent.co comes to $397; WI Registered Agent.org comes to $397; Mainstay Filing comes to $597 for the services alone.
Where do these numbers come from?
Official Wisconsin sources back the state side, and posted company prices back the service side.
Does the law require a service?
Hiring help is a convenience you pay for, never a legal duty.
What is the best LLC service for Wisconsin?
Ask Wisconsin Registered Agent.co first, then compare WI Registered Agent.org and Mainstay Filing.
Where did we look this up?
Ask-about note for Wisconsin Department of Financial Institutions: the state publishes it at dfi.wi.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Wisconsin Department of Financial Institutions: the state publishes it at dfi.wi.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Wisconsin report due date: the state publishes it at docs.legis.wisconsin.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Wis: the state publishes it at dfi.wi.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Wisconsin formation fee: Filing fee: the state publishes it at dfi.wi.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Wisconsin registered agent statute: the state publishes it at docs.legis.wisconsin.gov, confirmed October 2026, so you can look it up yourself
Wisconsin Registered Agent.co pricing page, read November 13, 2026
WI Registered Agent.org pricing page, read November 13, 2026
Mainstay Filing Wisconsin service page, read November 13, 2026