Skip to content
Plain CharterLLC questions, short answers.

No legalese · Wisconsin

3 Best LLC Services in Wisconsin (2026), Plainly Answered

Our 2026 answer for Wisconsin: Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199), best first. The state's filing fee is $130 no matter who files. Service fees over three years: $397 to $597.

By the Plain Charter editorial team ·

Quick answer

Cost to file
$130, when you file
What recurs
$25 every year
Registered agent
Required by law
Our order
Mainstay Filing, Wisconsin Registered Agent.co then WI Registered Agent.org

Our Wisconsin list

Ranked by how we choose: three-year cost first, then what the price covers.
1First choice

1. Mainstay Filing: best for having the annual report filed for you

$199 per year plus $130 to the state

Mainstay Filing is the one we'd hire first in Wisconsin, because you pay $199 a year and the formation, the registered agent and the annual report are handled.

Three years cost $200 more than Wisconsin Registered Agent.co; what the price covers decides it here.

You never file the annual report yourself; only the state's $25 is added.

The price covers

  • Your LLC filed with the state
  • Registered agent for the full year
  • Annual report prepared and filed
  • Applying for your EIN
  • State fees at cost

Upsides

  • $199 yearly, all in
  • $199 at renewal
  • No extra charge for the EIN application

What to weigh

  • $100 more per year after year one
Visit Mainstay FilingPartner link. We may earn money if you buy.
2In-state

2. Wisconsin Registered Agent.co: best for staying in one state

$199 plus state fees; renewal $99

Pick number 2, Wisconsin Registered Agent.co, makes the list because you pay $199 in year one and $99 in each later year.

The annual report is not in its price, so you file that yourself.

The price covers

  • Formation, done for you
  • Agent included, year one

Upsides

  • First agent year in the price
  • Formation fee $199
  • $99 a year from year two

What to weigh

  • You handle the annual report on your own
  • EIN application costs $99 extra
Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
3In-state

3. WI Registered Agent.org: best for single-state companies

$199 plus state fees; renewal $99

Pick number 3, WI Registered Agent.org, makes the list because you pay $199 in year one and $99 in each later year.

The annual report is not in its price, so you file that yourself.

It charges the same as Wisconsin Registered Agent.co; the order between them is a close call.

The price covers

  • Formation, done for you
  • Agent included, year one

Upsides

  • First agent year in the price
  • $99 a year from year two
  • Formation fee $199

What to weigh

  • You handle the annual report on your own
  • EIN application costs $99 extra
Visit WI Registered Agent.orgPartner link. We may earn money if you buy.

The picks side by side

#CompanyFirst yearLater yearsThree-year totalWhat it covers
1Mainstay Filing$199$199/yr$597Your LLC filed with the state; registered agent for the full year; annual report prepared and filedVisit Mainstay FilingPartner link. We may earn money if you buy.
2Wisconsin Registered Agent.co$199$99/yr$397Formation, done for you; agent included, year oneVisit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
3WI Registered Agent.org$199$99/yr$397Formation, done for you; agent included, year oneVisit WI Registered Agent.orgPartner link. We may earn money if you buy.
Read from company pricing on November 12, 2026; three years means the first year plus two renewals.

Your questions

What does it cost to form an LLC here?

Budget $130 for the state and $199 for a service.

Over three years the state collects $180 in total, filing fee included. October 2026 · dfi.wi.gov

Where does the paperwork go?

It takes one filing, the Articles of Organization - Limited Liability Company (Form 502), which goes to the Department of Financial Institutions (DFI).

The law behind it: Wis. Stat. § 183.0201. October 2026 · dfi.wi.gov

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.

October 2026 · docs.legis.wisconsin.gov

What do I owe each year after that?

One recurring filing: the annual report ($25, yearly). It falls due end of the calendar quarter containing the LLC's anniversary date.

Late filers pay $25.

August 2026 · dfi.wi.gov

Can I file it myself?

Yes. Filing yourself leaves only the state's fees, $180 over three years.

The services charge $397 to $597 across three years for that work.

Why this order?

Mainstay Filing leads on what the price takes off your plate, which weighs 30% in our order.

We start with three-year cost (35%), then what the price takes off your plate (30%).

Wisconsin Registered Agent.co is the lower bill, but the annual report stays your job there.

See how we rank

Wisconsin requirements checklist

RequirementAnswerSource
Fee to form$130October 2026 · dfi.wi.gov
Registered agentRequired by lawOctober 2026 · docs.legis.wisconsin.gov
Annual report$25 every yearAugust 2026 · dfi.wi.gov
Three-year state total$180Total of these fees
Every amount links to its official source. The three-year line is our own sum of filing, reports and any minimum tax.

Other quick questions

What about the EIN?

Mainstay Filing applies for it at no extra cost. Wisconsin Registered Agent.co adds $99; WI Registered Agent.org adds $99.

What if the report is late?

Wisconsin adds $25.

What is the three-year cost of each?

Mainstay Filing $597, Wisconsin Registered Agent.co $397 and WI Registered Agent.org $397, before state fees.

Are the fees official?

Official schedules for state fees, company pricing for service fees, all dated on this page.

Is a service required by law?

No, you can file yourself if you meet the rules on this page.

Who comes first in Wisconsin?

Mainstay Filing tops our list because the annual report is part of its $199 yearly price, along with formation and the registered agent; Wisconsin Registered Agent.co and WI Registered Agent.org come next.

Where these answers come from

  1. Wisconsin Department of Financial Institutions: dfi.wi.gov (August 2026)
  2. Wisconsin Department of Financial Institutions: dfi.wi.gov (August 2026)
  3. Wisconsin report due date: docs.legis.wisconsin.gov (August 2026)
  4. Wis: dfi.wi.gov (August 2026)
  5. Wisconsin formation fee: Filing fee: dfi.wi.gov (October 2026)
  6. Wisconsin registered agent statute: docs.legis.wisconsin.gov (October 2026)
  7. November 12, 2026: Mainstay Filing Wisconsin service page
  8. November 12, 2026: Wisconsin Registered Agent.co pricing page
  9. November 12, 2026: WI Registered Agent.org pricing page