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LLC UnpackedEvery filing, unpacked: the fee, the form, the catch.

Unpacked · Wisconsin

3 Best LLC Services in Wisconsin (2026), Opened Up

Opened up for 2026, the LLC formation services in Wisconsin rank Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199), best on top. Inside the cost: $130 goes to the state, and three years of service add $397 to $597.
Unpacked by the LLC Unpacked editorial team

Top layer

Fee to the state
$130, one time
Next layer
$25 each year
Registered agent
Required, yes
Our pick
Mainstay Filing, Wisconsin Registered Agent.co then WI Registered Agent.org

Our Wisconsin picks, opened up

Prices come from each company's own page. See how we open it up.
Top of the stack

1. Mainstay Filing: best for owners who want upkeep handled

$199 a year, with the $130 state fee added

Mainstay Filing is first, and $199 a year packs in formation, the registered agent and every annual report.

Is it the smallest bill? No. Wisconsin Registered Agent.co costs $200 less over three years, and you would do more of the paperwork.

You never file the annual report. Wisconsin still charges $25, billed at cost.

Inside the price

  • The formation filing, packed in
  • Registered agent across the full year
  • Annual report filed on your behalf
  • EIN application handled
  • State fees passed through without markup

Inside, the good

  • A flat $199 a year, all inside
  • EIN handled at no extra charge
  • Year two costs $199

Inside, the catch

  • $100 a year above Wisconsin Registered Agent.co after year one
Wisconsin only

2. Wisconsin Registered Agent.co: best for a business that stays in one state

$199 plus the state fee, then $99 a year

Wisconsin Registered Agent.co sits second because $199 forms the LLC, and the agent renews each year at $99.

Not inside the price: the annual report, which stays with you.

Inside the price

  • The LLC, filed for you
  • Agent included in year one

Inside, the good

  • Year one of the agent comes with it
  • $199 plus the state fee to form
  • A renewal of $99

Inside, the catch

  • You carry the annual report yourself
  • The EIN application costs $99 extra
Wisconsin only

3. WI Registered Agent.org: best for another in-state option

$199 plus the state fee, then $99 a year

WI Registered Agent.org sits third because $199 forms the LLC, and the agent renews each year at $99.

Not inside the price: the annual report, which stays with you.

Its prices match Wisconsin Registered Agent.co exactly, so the order between them is close.

Inside the price

  • The LLC, filed for you
  • Agent included in year one

Inside, the good

  • A renewal of $99
  • $199 plus the state fee to form
  • Year one of the agent comes with it

Inside, the catch

  • You carry the annual report yourself
  • The EIN application costs $99 extra

Side by side

#CompanyOpening priceEach year afterThree-year totalWhat is inside
1Mainstay Filing$199$199/yr$597the formation filing, packed in; registered agent across the full year; annual report filed on your behalfOpen Mainstay FilingPartner link. We may earn money if you buy.
2Wisconsin Registered Agent.co$199$99/yr$397The LLC, filed for you; agent included in year oneOpen Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
3WI Registered Agent.org$199$99/yr$397The LLC, filed for you; agent included in year oneOpen WI Registered Agent.orgPartner link. We may earn money if you buy.
Service fees only, from company prices read November 13, 2026. State fees are the same whichever pick you open.

Layer by layer

How much does forming an LLC cost in this state?

Filing costs $130. A service on top of that costs $199 in year one.

Add the recurring report and the state's fees reach $180 over three years. peek at dfi.wi.gov, confirmed October 2026

Which form is inside the filing, and where does it go?

The Articles of Organization - Limited Liability Company (Form 502) is the filing, and the Department of Financial Institutions (DFI) is where it goes. Approval creates the LLC.

Statute: Wis. Stat. § 183.0201. peek at dfi.wi.gov, confirmed October 2026

Must the LLC name 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.

peek at docs.legis.wisconsin.gov, confirmed October 2026

What comes after the LLC is formed?

Year after year the recurring job is the annual report: yearly, costing $25. The calendar line from the state reads end of the calendar quarter containing the LLC's anniversary date.

Miss the deadline and you owe an extra $25.

peek at dfi.wi.gov, confirmed August 2026

Can I file it myself instead of hiring a service?

Yes. Filing on your own costs only the state's fees, $180 over three years.

Services add $397 to $597 across three years to take the filings off your desk, and Mainstay Filing counts the reports among them.

What put number one on top?

On what is inside the price (29%), Mainstay Filing comes out ahead.

Five layers set the order: total across three years (34%), what is inside the price (29%), price laid out in the open (14%), how the renewal behaves (12%) and how far it reaches (11%).

In Wisconsin the annual report is due every year, and only the first pick packs its filing into the price.

How we open it up

Wisconsin formation, unpacked

PartWhat is insidePeek at source
LLC filing fee$130peek at dfi.wi.gov, confirmed October 2026
Registered agentRequired, yespeek at docs.legis.wisconsin.gov, confirmed October 2026
Annual report$25 every yearpeek at dfi.wi.gov, confirmed August 2026
What the state collects in three years$180The rows above, stacked
The last row stacks the filing fee, the reports in years two and three and any minimum tax. A cost with no fixed amount, such as a newspaper notice, is explained above and kept out of the sum.

More boxes to open

Is the EIN application inside the price?

With Mainstay Filing it costs nothing more. Wisconsin Registered Agent.co charges $99, WI Registered Agent.org charges $99.

Is there a late fee?

A late report costs $25 more.

How do the three-year totals compare?

Mainstay Filing runs to $597 and Wisconsin Registered Agent.co runs to $397 and WI Registered Agent.org runs to $397, with state fees on top.

What do these numbers rest on?

The state-side figures were taken from Wisconsin's own publications, and the service prices from the price page each company posts. Dates for both appear on this page.

Do I have to use a service?

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

Which LLC service should I open first in Wisconsin?

Mainstay Filing is on top: the annual report is filed for you within the $199 annual price, next to formation and the registered agent. Under it sit Wisconsin Registered Agent.co and WI Registered Agent.org.

Originals behind this page

  1. Unpacking Wisconsin Department of Financial Institutions led us to dfi.wi.gov, confirmed August 2026, which you can open yourself
  2. Unpacking Wisconsin Department of Financial Institutions led us to dfi.wi.gov, confirmed August 2026, which you can open yourself
  3. Unpacking Wisconsin report due date led us to docs.legis.wisconsin.gov, confirmed August 2026, which you can open yourself
  4. Unpacking Wis led us to dfi.wi.gov, confirmed August 2026, which you can open yourself
  5. Unpacking Wisconsin formation fee: Filing fee led us to dfi.wi.gov, confirmed October 2026, which you can open yourself
  6. Unpacking Wisconsin registered agent statute led us to docs.legis.wisconsin.gov, confirmed October 2026, which you can open yourself
  7. The Mainstay Filing Wisconsin service page, opened November 13, 2026
  8. The Wisconsin Registered Agent.co pricing page, opened November 13, 2026
  9. The WI Registered Agent.org pricing page, opened November 13, 2026