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Founder Primer

LLC paperwork, boiled down for founders.

Guide 1 · Wisconsin

LLC Formation in Wisconsin (2026): 7 Moves and the 3 Best LLC Services

Our 2026 marks for starting an LLC in Wisconsin: Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199), highest first. To start the LLC: 7 moves and $130 paid to Wisconsin; the annual report follows every year.
From the Founder Primer desk

The short version

Charged by the state
$130
Per dfi.wi.gov, as of October 2026
Annual report
$25 a year
Filing window: end of the calendar quarter containing the LLC's anniversary date
What the state collects in 3 years
$180
Filing plus recurring state fees
Primer moves
7
Listed below

What you get

  • How starting an LLC works in Wisconsin
  • How to meet the registered agent rule
  • The upkeep that repeats
  • How the picks compare

Who we would hire in Wisconsin

Five published criteria set the order; read them on how we score.

Our pick $199 first year, $199 renewal, state fee extra

1. Mainstay Filing: best for new owners who want it done

In Wisconsin, Mainstay Filing is number one: one bill of $199 a year clears three to-dos (filing, registered agent, annual report).

You pay $200 more than at Wisconsin Registered Agent.co across three years and keep less of the paperwork.

The annual report is on its to-do list, and Wisconsin's $25 fee is billed to you at cost.

Inside the price
  • Filing with the state
  • Registered agent all year
  • Annual report filed on time
  • EIN application included
  • State fee billed at cost
In its favor
  • The EIN step is in the price
  • Flat $199 a year
  • $199 each year
Against it
  • Renewal is $100 higher than Wisconsin Registered Agent.co
Visit Mainstay Filing Partner link. We may earn money if you buy.
Wisconsin focus $199 year one, $99 later

2. Wisconsin Registered Agent.co: best for a small first invoice

Second place is Wisconsin Registered Agent.co, because $199 up front and no agent fee in year one; $99 a year from year two.

Make time for the annual report every year; it is not in the price.

Inside the price
  • We prepare and file the formation
  • Agent service for year one
In its favor
  • $199 to form
  • $99 yearly from year two
  • First agent year included
Against it
  • The annual report is not in the price
  • The EIN application costs $99 extra
Visit Wisconsin Registered Agent.co Partner link. We may earn money if you buy.
Wisconsin focus $199 year one, $99 later

3. WI Registered Agent.org: best for founders who file their own reports

Third place is WI Registered Agent.org, because $199 up front and no agent fee in year one; $99 a year from year two.

Make time for the annual report every year; it is not in the price.

Its prices match Wisconsin Registered Agent.co's, so either one works.

Inside the price
  • We prepare and file the formation
  • Agent service for year one
In its favor
  • $99 yearly from year two
  • $199 to form
  • First agent year included
Against it
  • The annual report is not in the price
  • The EIN application costs $99 extra
Visit WI Registered Agent.org Partner link. We may earn money if you buy.

Marks and prices together

# Service First year From year two Three-year total
1 Mainstay Filing $199 $199/yr $597 Visit Mainstay Filing Partner link. We may earn money if you buy.
2 Wisconsin Registered Agent.co $199 $99/yr $397 Visit Wisconsin Registered Agent.co Partner link. We may earn money if you buy.
3 WI Registered Agent.org $199 $99/yr $397 Visit WI Registered Agent.org Partner link. We may earn money if you buy.

Prices come from each company's own site, read November 13, 2026. Each row still needs Wisconsin's $130 fee.

The moves

  1. Move 1

    Check the name is free

    Do not file under a name someone else holds. the Department of Financial Institutions (DFI) lets you check in a minute.

    Show up with a second name.

  2. Move 2

    Choose 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.

    Hire any one of our picks for this.

    Where this comes from: Per docs.legis.wisconsin.gov, as of October 2026

  3. Move 3

    DIY or hire help

    Without a service you pay the state $130, nothing more. Any of our picks adds $199 and handles the paperwork.

  4. Move 4

    Prepare the Articles of Organization - Limited Liability Company

    Three things: the Articles of Organization - Limited Liability Company (Form 502), $130, and the Department of Financial Institutions (DFI) as the recipient. Statute: Wis. Stat. § 183.0201.

    Where this comes from: Per dfi.wi.gov, as of October 2026

  5. Move 5

    Order the LLC's federal tax ID

    After approval, the IRS can give the LLC a federal tax ID, and the business bank account hinges on it. Mainstay Filing's yearly price covers this application.

  6. Move 6

    Get the owners' deal on paper

    A single-owner Wisconsin LLC still benefits from a written operating agreement in the files.

  7. Move 7

    Stay in good standing in Wisconsin

    Wisconsin requires the annual report every year, due end of the calendar quarter containing the LLC's anniversary date, costing $25. Late means $25 extra.

    Where this comes from: Per dfi.wi.gov, as of August 2026

What each move costs in Wisconsin

Move Pay to Cost
Filing fee The state $130
Annual report The state $25 every year
Late report The state $25
Service fees (optional) Service company $199 in year one
State fees for three years The state $180

Filing plus the reports in years two and three plus any minimum tax: that is the state's three-year total. Sources are listed below.

Why this order

To-dos the price takes off you is 38% of the mark, and it is where moved ahead in Wisconsin.

Taking the annual report off your plate beat the lower price under our weights.

Wisconsin questions

What does it cost to file an LLC in Wisconsin?

You pay $130 to file. A service adds $199 the first year.

Which form creates the LLC?

Look for the Articles of Organization - Limited Liability Company (Form 502); the Department of Financial Institutions (DFI) is the office.

Is a registered agent required?

Every LLC must name a registered agent with an in-state street address.

What does Wisconsin require each year?

File the annual report every year, $25; deadline end of the calendar quarter containing the LLC's anniversary date.

Can I form the LLC without a service?

Yes. Pay the state $130 at filing; the LLC still needs a registered agent.

Which LLC service should a first-time founder use?

Mainstay Filing first, then Wisconsin Registered Agent.co and WI Registered Agent.org; Mainstay Filing wins on to-dos the price takes off you.

Related primers

Sources, so you can check us

  1. Wisconsin Department of Financial Institutions, Division of Corporate facts trace to dfi.wi.gov (read August 2026); that page is the authority, not us.
  2. Wisconsin Department of Financial Institutions, Division of Corporate facts trace to dfi.wi.gov (read August 2026); that page is the authority, not us.
  3. Wisconsin report due date facts trace to docs.legis.wisconsin.gov (read August 2026); that page is the authority, not us.
  4. Wis facts trace to dfi.wi.gov (read August 2026); that page is the authority, not us.
  5. Wisconsin formation fee: Filing fee, official source facts trace to dfi.wi.gov (read October 2026); that page is the authority, not us.
  6. Wisconsin registered agent statute facts trace to docs.legis.wisconsin.gov (read October 2026); that page is the authority, not us.
  7. Wisconsin service page at Mainstay Filing, pulled November 13, 2026
  8. pricing page at Wisconsin Registered Agent.co, pulled November 13, 2026
  9. pricing page at WI Registered Agent.org, pulled November 13, 2026