Forming an LLC in Wisconsin (2026): 7 Procedures and the 3 Best LLC Services
Wisconsin Registered Agent.co ($199), Mainstay Filing ($199) and WI Registered Agent.org ($199) measured best, in that order, for forming an LLC in Wisconsin in 2026. 7 procedures follow; the state's charge measures $130, and the annual report adds $25.
Recorded by the Business Basics Lab staff ·
Sheet summary
Formation fee
$130Observed at dfi.wi.gov; entry dated October 2026
Annual report
$25 a yearLog this date: end of the calendar quarter containing the LLC's anniversary date
State fees, three years
$180Formation, reports and any minimum tax
Procedures
7One at a time
You will be able to
How formation is carried out in Wisconsin
The registered agent requirement
What must be filed each year after formation
The readings and their reasoning
Best reading
Who we would engage in Wisconsin
The order follows five published criteria, set out in how we measure.
Highest result
1. Wisconsin Registered Agent.co: best for an economical Wisconsin start
$199 plus fees; $99 yearly after
Wisconsin Registered Agent.co comes first since $199 above the state fee, with year-one agent service included, then $99 a year.
Mainstay Filing measures higher across three years, which puts this service first.
The annual report lies outside the price.
What the price performs
Formation prepared and filed
Agent service for the first year
Measured strengths
A formation fee of $199
Agent covered for year one
The agent renews at $99
Measured limits
Filing the annual report is not something it performs
2. Mainstay Filing: best for filing and upkeep on one invoice
$199 yearly, renewing at $199
Reading 2 belongs to Mainstay Filing, because $199 per year performs the formation, keeps the registered agent and files the annual report; year two measures $199.
Wisconsin Registered Agent.co measures $200 lower over three years, which keeps this service out of first place.
Included in the service: the annual report, with the state's $25 charged as Wisconsin sets it.
What the price performs
Formation filing, prepared and submitted
Registered agent for the full year
Annual report filed on schedule
EIN application included
Official fee, nothing added
Measured strengths
It prepares the EIN application
One annual price of $199, including the annual report
$199 at renewal
Measured limits
Wisconsin Registered Agent.co renews for $100 less
Company prices as posted on November 13, 2026. Every row needs the $130 state fee added.
The procedures
Procedure1
Procedure 1: Fix the company name
Run the name search at the Department of Financial Institutions (DFI) before anything else.
TipCheck the matching web domain in the same sitting.
Procedure2
Procedure 2: Appoint 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 address has to be an actual physical location with a street address in Wisconsin, not solely a P.O. box, mailbox service or answering service.
TipEvery service measured on this sheet can act as the registered agent.
Without a service the whole bill is the state's $130. Each of the ranked services adds $199 and handles the paperwork.
Procedure4
Procedure 4: Prepare the Articles of Organization - Limited Liability Company
The company comes into existence through the Articles of Organization - Limited Liability Company (Form 502), delivered to the Department of Financial Institutions (DFI) with $130 (Wis. Stat. § 183.0201).
Specimen: Observed at dfi.wi.gov; entry dated October 2026
Procedure5
Procedure 5: Apply to the IRS for an EIN
With Wisconsin's approval recorded, request an EIN so the LLC can open accounts in its own name. This procedure sits inside the Mainstay Filing package.
Procedure6
Procedure 6: Draft the operating agreement
Even a single-owner Wisconsin LLC gains from a written operating agreement kept on file.
Procedure7
Procedure 7: Log the recurring deadlines
Wisconsin requires the annual report every year, due end of the calendar quarter containing the LLC's anniversary date, fee $25. A late filing measures $25 extra.
Specimen: Observed at dfi.wi.gov; entry dated August 2026
The cost of this sheet
Line
Goes to
Cost
The formation procedure
To the state
$130
Annual report
To the state
$25 every year
Missing the deadline
To the state
$25
Service fees (optional)
The engaged service
$199 in year one
Three-year state total
To the state
$180
Figures paid to Wisconsin are its published fees, with the specimens listed beneath the table; each service row is that company's own price. The three-year state row sums the filing, the year-two report, the year-three report and any minimum tax.
Why Wisconsin Registered Agent.co comes first
The deciding criterion was measured cost over three years, worth 36% of the reading.
Years one to three cost $397 with Wisconsin Registered Agent.co, while Mainstay Filing costs $200 more.
Review questions on Wisconsin
What will a Wisconsin LLC cost at the start?
$130 goes to the state. A ranked service adds $199 in year one.
Which form creates the LLC?
Procedure 4 explains how to complete the Articles of Organization - Limited Liability Company (Form 502) and where to send it: the Department of Financial Institutions (DFI).
Is a registered agent required?
Every LLC must name a registered agent with an in-state street address.
What does Wisconsin require each year?
Upkeep consists of the annual report ($25, every year, due end of the calendar quarter containing the LLC's anniversary date).
Can I form the LLC without a service?
Yes. The state takes $130 at filing, and the LLC must still name a registered agent.
Which LLC service should a first-time founder use?
Wisconsin Registered Agent.co reads highest, Mainstay Filing and WI Registered Agent.org follow; Wisconsin Registered Agent.co leads on measured cost over three years.