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Straight talk · Wisconsin

3 Best LLC Services in Wisconsin (2026), Simply Ranked

In Wisconsin for 2026, we like Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199), ranked from first to last. Everyone pays the state the same $130, and the service fees come to $397 to $597 for three years.
From the LLC Plainly editorial team

The gist

State filing fee
$130, one time
Each year
$25 yearly
Registered agent
Yes, it's required
Who to use
Mainstay Filing, Wisconsin Registered Agent.co then WI Registered Agent.org

Who we'd use in Wisconsin

Wondering about the order? How we pick explains it.
Best overall

1. Mainstay Filing: best for not having to think about the annual report

$199 yearly ($329 due when you sign up, state fee included)

Mainstay Filing is our favorite here, because one yearly price, $199, covers the filing, the registered agent and the annual report.

Wisconsin Registered Agent.co saves you $200 over three years, but you'd do more of the work yourself.

It files your annual report for you and passes the state's $25 along at cost.

Your money buys

  • The state filing, taken care of
  • Registered agent all year
  • Annual report filed on time
  • EIN handled
  • State fees passed on at cost

The good

  • They also apply for your EIN
  • Locked at $199 a year
  • You pay $199 next year

Trade-offs

  • Its renewal is $100 above Wisconsin Registered Agent.co
Wisconsin only

2. Wisconsin Registered Agent.co: best for a lean start

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

Second place goes to Wisconsin Registered Agent.co, where it starts at $199 with the first agent year included and runs $99 a year after that.

Block out time for the annual report, since it's not included.

Your money buys

  • LLC filing handled
  • Agent included for year one

The good

  • $199 to get going
  • Then $99 a year for the agent
  • You don't pay for an agent in year one

Trade-offs

  • Nothing here covers the annual report
  • They charge $99 to apply for your EIN
Wisconsin only

3. WI Registered Agent.org: best for owners who do their own reports

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

Third place goes to WI Registered Agent.org, where it starts at $199 with the first agent year included and runs $99 a year after that.

Block out time for the annual report, since it's not included.

Wisconsin Registered Agent.co charges the same, which makes this nearly a tie.

Your money buys

  • LLC filing handled
  • Agent included for year one

The good

  • Then $99 a year for the agent
  • $199 to get going
  • You don't pay for an agent in year one

Trade-offs

  • Nothing here covers the annual report
  • They charge $99 to apply for your EIN

Compared

#WhoFirst yearRenewalOver three yearsWhat you get
1Mainstay Filing$199$199/yr$597the state filing, taken care of; registered agent all year; annual report filed on timeSee what Mainstay Filing offersPartner link. We may earn money if you buy.
2Wisconsin Registered Agent.co$199$99/yr$397LLC filing handled; agent included for year oneSee what Wisconsin Registered Agent.co offersPartner link. We may earn money if you buy.
3WI Registered Agent.org$199$99/yr$397LLC filing handled; agent included for year oneSee what WI Registered Agent.org offersPartner link. We may earn money if you buy.
These are service fees only, from each company's prices on November 13, 2026. The state's fees are the same whoever you pick.

What you probably want to know

How much should I set aside to form it?

The state fee is $130. Hire a service and add $199.

By year three the state has taken $180 in total. dfi.wi.gov · October 2026 · checked

What do I file and who gets it?

The form is the Articles of Organization - Limited Liability Company (Form 502), and the office is the Department of Financial Institutions (DFI).

The rule comes from Wis. Stat. § 183.0201. dfi.wi.gov · October 2026 · checked

Could I skip naming 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.

docs.legis.wisconsin.gov · October 2026 · checked

What comes due in later years?

Mostly the annual report, once a year, at $25. The state's due date: end of the calendar quarter containing the LLC's anniversary date. Jot that down early.

Miss the deadline and the state tacks on $25.

dfi.wi.gov · August 2026 · checked

Is it okay to do the filing myself?

It's allowed, and doing it yourself keeps your three-year cost at the state's $180.

Services bill $397 to $597 over three years for taking this off your hands.

Why did the first pick win?

Mainstay Filing is strongest on work taken off your hands, which counts for 31% of our score.

Cost across three years (33%) and work taken off your hands (31%) matter most, and three lighter checks sit behind them.

In Wisconsin the annual report comes due every year, and only the first pick files it for you.

See how we score

Wisconsin checklist

WhatThe answerWhere we found it
LLC filing fee$130dfi.wi.gov · October 2026 · checked
Registered agentYes, it's requireddocs.legis.wisconsin.gov · October 2026 · checked
Annual report$25 every yeardfi.wi.gov · August 2026 · checked
State cost over three years$180Rows above, totaled
How we get the bottom line: filing + report in year two + report in year three + any minimum tax. Open-ended costs are described in the text only.

More questions

Who gets my EIN?

You'd pay $99 at Wisconsin Registered Agent.co or $99 at WI Registered Agent.org, and nothing extra at Mainstay Filing.

What happens if I'm late with the report?

The state charges $25 for lateness.

What does each one cost over three years?

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

Can I check these fees?

Every state fee links to its official page. Every service price is read from the company's own site.

Is hiring help required?

No. The state takes filings straight from owners. A service saves you time and can serve as your agent, but nobody makes you hire one.

What's the best LLC service for Wisconsin?

Start with Mainstay Filing, followed by Wisconsin Registered Agent.co and WI Registered Agent.org.

What we used for this page

  1. Wisconsin Department of Financial Institutions (dfi.wi.gov), last confirmed August 2026
  2. Wisconsin Department of Financial Institutions (dfi.wi.gov), last confirmed August 2026
  3. Wisconsin report due date (docs.legis.wisconsin.gov), last confirmed August 2026
  4. Wis (dfi.wi.gov), last confirmed August 2026
  5. Wisconsin formation fee: Filing fee (dfi.wi.gov), last confirmed October 2026
  6. Wisconsin registered agent statute (docs.legis.wisconsin.gov), last confirmed October 2026
  7. We read the Mainstay Filing Wisconsin service page on November 13, 2026
  8. We read the Wisconsin Registered Agent.co pricing page on November 13, 2026
  9. We read the WI Registered Agent.org pricing page on November 13, 2026