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Kept simple · Wisconsin

3 Best LLC Services in Wisconsin (2026), Kept Simple

In Wisconsin for 2026, LLC formation services rank Mainstay Filing ($199), WI Registered Agent.org ($199) and Wisconsin Registered Agent.co ($199). The state charges $130. Services cost $397 to $597 over three years.
Charter Simple editors

The short version

Filing fee
$130, paid once
Afterward
$25 each year
Registered agent
Yes, it is required
Our pick
Mainstay Filing, WI Registered Agent.org then Wisconsin Registered Agent.co

Wisconsin: the order

Prices come from each company's own page. Method.
1 Ranked first

1. Mainstay Filing: best for handing off upkeep

$199 a year. $130 to the state

First place: Mainstay Filing, since $199 a year pays for formation, the registered agent and the annual report, and renews at $199.

Over three years this costs $200 more than WI Registered Agent.org. More filings are handled for you.

You do not file the annual report. Only the state's $25 is added.

Includes

  • The formation filing
  • Registered agent for a year
  • Annual report prepared and filed
  • EIN application
  • State fees passed through

Good

  • EIN application included
  • $199 a year covers filing, agent and report
  • Year two: $199

Against

  • Pays $100 more each year than WI Registered Agent.org
2 Wisconsin only

2. WI Registered Agent.org: best for staying local

Form for $199. Renew at $99

WI Registered Agent.org takes second place because its $99 renewal makes three years $397.

The annual report is not included. You file it.

Includes

  • Wisconsin formation filing
  • Agent for year one

Good

  • Starts at $199 over the state fee
  • Agent renews at $99
  • Year one of the agent comes with it

Against

  • The annual report is a task you keep
  • $99 to apply for your EIN
3 Wisconsin only

3. Wisconsin Registered Agent.co: best for single-state companies

Form for $199. Renew at $99

Wisconsin Registered Agent.co takes third place because its $99 renewal makes three years $397.

The annual report is not included. You file it.

It charges what WI Registered Agent.org charges.

Includes

  • Wisconsin formation filing
  • Agent for year one

Good

  • Year one of the agent comes with it
  • Agent renews at $99
  • Starts at $199 over the state fee

Against

  • The annual report is a task you keep
  • $99 to apply for your EIN

Prices

#NameStartRenewalThree yearsIncludes
1 Mainstay Filing $199$199/yr$597the formation filing; registered agent for a year; annual report prepared and filed View Mainstay FilingPartner link. We may earn money if you buy.
2 WI Registered Agent.org $199$99/yr$397wisconsin formation filing; agent for year one View WI Registered Agent.orgPartner link. We may earn money if you buy.
3 Wisconsin Registered Agent.co $199$99/yr$397wisconsin formation filing; agent for year one View Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
Service fees only, read November 13, 2026. State fees are identical for every pick.

Key questions

What does an LLC cost to form here?

The state charges $130. A service adds $199 in year one.

With the recurring report, state fees reach $180 in three years. from dfi.wi.gov, October 2026, kept short

Which form, and where?

The Articles of Organization - Limited Liability Company (Form 502) goes to the Department of Financial Institutions (DFI). Approval creates the LLC.

Statute: Wis. Stat. § 183.0201. from dfi.wi.gov, October 2026, kept short

Is a registered agent required?

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.

from docs.legis.wisconsin.gov, October 2026, kept short

What comes after formation?

One filing repeats: the annual report, yearly, $25. The wording from the state is: end of the calendar quarter containing the LLC's anniversary date, so plan around it.

A late filing adds $25.

from dfi.wi.gov, August 2026, kept short

Can I file it myself?

Yes. Filing yourself costs the state's fees only: $180 over three years.

A service adds $397 to $597 over three years. With Mainstay Filing the reports are included.

What put the first pick first?

On work included (27%), Mainstay Filing leads.

Two checks carry most of the weight: three-year cost (38%) and work included (27%).

WI Registered Agent.org costs less. You would still file the annual report.

The five checks

Wisconsin: forming an LLC

ItemRule or amountSource
LLC filing fee$130from dfi.wi.gov, October 2026, kept short
Registered agentYes, it is requiredfrom docs.legis.wisconsin.gov, October 2026, kept short
Annual report$25 every yearfrom dfi.wi.gov, August 2026, kept short
Three-year state total$180The rows above, added
Each row cites its official source. The last row is our own addition of the filing, two reports and any minimum tax.

Questions

Is the EIN application included?

Mainstay Filing folds the EIN application into its price, while WI Registered Agent.org adds $99 and Wisconsin Registered Agent.co adds $99.

Is there a late fee?

Wisconsin adds $25.

What are the three-year totals?

Mainstay Filing is $597, while WI Registered Agent.org is $397, while Wisconsin Registered Agent.co is $397, with state fees on top.

Where do the figures come from?

Official Wisconsin sources for the state side. Published prices for the service side.

Does the law require one?

No law requires a service. It is a paid convenience.

Which LLC service should I use in Wisconsin?

Mainstay Filing ranks first. One yearly price, $199, includes formation, the registered agent and every annual report. After it, WI Registered Agent.org and Wisconsin Registered Agent.co.

References

  1. Entry for Wisconsin Department of Financial Institutions: read at dfi.wi.gov, dated August 2026, kept short on purpose
  2. Entry for Wisconsin Department of Financial Institutions: read at dfi.wi.gov, dated August 2026, kept short on purpose
  3. Entry for Wisconsin report due date: read at docs.legis.wisconsin.gov, dated August 2026, kept short on purpose
  4. Entry for Wis: read at dfi.wi.gov, dated August 2026, kept short on purpose
  5. Entry for Wisconsin formation fee: Filing fee: read at dfi.wi.gov, dated October 2026, kept short on purpose
  6. Entry for Wisconsin registered agent statute: read at docs.legis.wisconsin.gov, dated October 2026, kept short on purpose
  7. The Mainstay Filing Wisconsin service page, on November 13, 2026
  8. The WI Registered Agent.org pricing page, on November 13, 2026
  9. The Wisconsin Registered Agent.co pricing page, on November 13, 2026