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The Formation Desk

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

LLC service picks · Wisconsin

3 Best LLC Services in Wisconsin (2026)

The The Formation Desk call for LLC services in Wisconsin in 2026: Mainstay Filing ($199), WI Registered Agent.org ($199) and Wisconsin Registered Agent.co ($199), in that order. Mainstay Filing takes the call: the formation, the registered agent and the annual report all ride on one $199 yearly price, renewing at $199.
Written by The Formation Desk editorial team
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Top pick on this page

1. Mainstay Filing: best for formation, agent and annual report in a single price

$199 a year plus the state fee, $329 due at checkout

Editorial score 9.1 out of 10

The desk picks Mainstay Filing: one $199 yearly bill covers the Wisconsin formation filing, the registered agent and the annual report.

Mainstay files the annual report for you when you renew. Wisconsin wants $25 every year, by end of the calendar quarter containing the LLC's anniversary date, and a late filing tacks on $25; Mainstay hands the state's fee through at cost.

Over three years Mainstay runs $200 more than WI Registered Agent.org, and the desk thinks the wider coverage is worth it.

In the price

  • Your LLC formation, handled
  • Registered agent service for the full year
  • Annual report, filed by Mainstay
  • EIN application handled

Strengths

  • One $199 yearly price that takes in the annual report
  • $199 on renewal, nothing extra
  • EIN application comes with the package
  • Wisconsin's fee passes through at cost

Cons

  • Its agent renews at $100 a year more than WI Registered Agent.org
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing up close
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Best value here

2. WI Registered Agent.org: best for a Wisconsin LLC with no plans to expand

Form for $199; the agent is $99 a year after that, plus the state fee

Editorial score 8.9 out of 10

Runner-up, WI Registered Agent.org: $199 plus the Wisconsin filing fee, first-year registered agent service included, then $99 a year.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

It leaves the annual report out of its prices, so you send that filing to Wisconsin yourself every year.

In the price

  • Formation prepared and filed
  • The first year as your registered agent

Strengths

  • Then $99 a year for agent service
  • $199 to form, state fee extra
  • A year of registered agent service comes in the price

Cons

  • No annual report filing included
  • EIN application will cost you $99 more
Visit WI Registered Agent.orgPartner link. We may earn money if you buy. WI Registered Agent.org up close
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Best local option

3. Wisconsin Registered Agent.co: best for keeping it local in Wisconsin

Form for $199; the agent is $99 a year after that, plus the state fee

Editorial score 8.8 out of 10

Third, Wisconsin Registered Agent.co: $199 plus the Wisconsin filing fee, first-year registered agent service included, then $99 a year.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

It leaves the annual report out of its prices, so you send that filing to Wisconsin yourself every year.

The published prices and features do not separate WI Registered Agent.org from Wisconsin Registered Agent.co; take whichever you like.

In the price

  • Formation prepared and filed
  • Year-one registered agent service

Strengths

  • The first registered agent year is included
  • Year-two agent price: $99
  • $199 service fee, then the state fee

Cons

  • No annual report filing included
  • EIN application will cost you $99 more
Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy. Wisconsin Registered Agent.co up close

The desk's 3 picks in brief

Pick Service Desk score Service fee Year two Good for Visit
1 Mainstay Filing 9.1 $199 $199/yr Formation, agent and annual report in a single price Visit Mainstay FilingPartner link. We may earn money if you buy.
2 WI Registered Agent.org 8.9 $199 $99/yr A Wisconsin-only LLC on a shoestring Visit WI Registered Agent.orgPartner link. We may earn money if you buy.
3 Wisconsin Registered Agent.co 8.8 $199 $99/yr A Wisconsin-only LLC on a shoestring Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.

A score out of 10 here is editorial judgment built on the criteria explained on How we rank, not an average of customer ratings.

What a Wisconsin LLC service costs in 2026: year one, renewal and the three-year bill

Service Year one Year two Year three Bill over three years Annual report filed on your behalf
Mainstay Filing $199 $199 $199 $597 Yes
WI Registered Agent.org $199 $99 $99 $397 No
Wisconsin Registered Agent.co $199 $99 $99 $397 No

Every price here was read off the company's own pages on November 12, 2026. Wisconsin's $130 filing fee comes on top of every row and is left out of these totals.

Why Mainstay Filing is the pick

Here is the weighting: 33% for spend over three years, 33% for work the price removes, 34% spread over what renewal looks like, fit with the state and plain price display. In Wisconsin, work the price removes made the call.

Wisconsin wants a report each year and charges $25, plus $25 if you are late. Mainstay's price covers that filing and WI Registered Agent.org's does not, and that outweighed WI Registered Agent.org's lower three-year cost.

The full criteria and weights are on How we rank.

Wisconsin LLC filing fee and form: the official numbers

It takes $130 to file the Articles of Organization - Limited Liability Company (Form 502) with the Department of Financial Institutions (DFI). Every service here adds that fee at cost on top of its own price.

After you form: keeping the Wisconsin LLC in order

Send in the annual report every year, by end of the calendar quarter containing the LLC's anniversary date. It costs $25. Late means $25 extra. Every LLC must name a registered agent with an in-state street address.

Wisconsin LLC service: reader questions

What will setting up an LLC in Wisconsin cost you?

$130 goes to the state and $199 to the service.

What do you file to create the LLC?

The Articles of Organization - Limited Liability Company (Form 502), sent to the Department of Financial Institutions (DFI).

Does a Wisconsin LLC have to line up a registered agent on day one?

Yes. Wisconsin expects a registered agent from the start, with a street address inside the state.

What keeps coming due once a Wisconsin LLC exists?

One filing: the annual report, every year, due end of the calendar quarter containing the LLC's anniversary date, costing $25.

Does the service price take care of the EIN?

Mainstay Filing builds it into the yearly price. WI Registered Agent.org and Wisconsin Registered Agent.co tack on $99. The IRS never charges for an EIN.

Who is our pick for an LLC service in Wisconsin?

Mainstay Filing, since $199 a year gets you the Wisconsin formation, a year of registered agent service and the annual report, and it renews at $199.

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Where the numbers came from

  1. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services, last checked August 2026
  2. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services, last checked August 2026
  3. Wisconsin report due date, last checked August 2026
  4. Wis. Stat. § 183.0201, last checked August 2026
  5. Wisconsin formation fee: Filing fee, official source, last checked October 2026
  6. Wisconsin registered agent statute, last checked October 2026
  7. Mainstay Filing: Wisconsin service page, as of November 12, 2026
  8. WI Registered Agent.org: pricing and service pages, as of November 12, 2026
  9. Wisconsin Registered Agent.co: pricing and service pages, as of November 12, 2026