Skip to content
LLC Answered The short reply to every LLC filing question.

The reply · Wisconsin

3 Best Registered Agents in Wisconsin (2026), Ranked

Our 2026 Wisconsin ranking, best first, is Mainstay Filing ($149 a year), Wisconsin Registered Agent.co ($99 a year) and WI Registered Agent.org ($99 a year). First year: $99 to $149. Three years: $297 to $447.
By the LLC Answered editorial team

The brief reply

Short reply
Required by law?
Must be named
Title in the statute
Registered agent
Yearly price
$99 to $149 per year
Hire in this order
Mainstay Filing, Wisconsin Registered Agent.co then WI Registered Agent.org

The Wisconsin ranking

Ranked best first by the tests on our process page.

#1 Our answer: this one

1. Mainstay Filing: best for multi-state companies

Costs $149 a year and renews for $149

Why Mainstay Filing? Simply put, $149 a year, with the same price in all fifty states.

The $150 gap to Wisconsin Registered Agent.co over three years is the price of national reach.

What is bundled

  • Registered office on file with the state
  • Three government mailings a year, scanned at no charge
  • The same service covers LLCs, corporations, LPs, LLPs and nonprofits

Pluses

  • Valid wherever the LLC registers
  • Flat $149 yearly

Downsides

  • Wisconsin Registered Agent.co is $50 a year less
  • Just the agent role
#2 Wisconsin only

2. Wisconsin Registered Agent.co: best for one-state companies

Costs $99 a year and renews for $99

Wisconsin Registered Agent.co comes next since for $99 a year you get an agent based in the state.

What is bundled

  • A physical in-state address
  • Document scans in your account

Pluses

  • $99 a year, no increase
  • Smaller yearly bill than the national pick

Downsides

  • One-state service
  • The annual report is yours to file
#3 Wisconsin only

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

Costs $99 a year and renews for $99

WI Registered Agent.org comes next since for $99 a year you get an agent based in the state.

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

What is bundled

  • A physical in-state address
  • Document scans in your account

Pluses

  • $99 a year, no increase
  • Smaller yearly bill than the national pick

Downsides

  • One-state service
  • The annual report is yours to file

The picks compared

#ServiceFirst yearRenewal3-year costIncluded
1 Mainstay Filing $149$149/yr$447registered office on file with the state; three government mailings a year, scanned at no charge; The same service covers LLCs, corporations, LPs, LLPs and nonprofits See Mainstay Filing pricing Partner link. We may earn money if you buy.
2 Wisconsin Registered Agent.co $99$99/yr$297A physical in-state address; document scans in your account See Wisconsin Registered Agent.co pricing Partner link. We may earn money if you buy.
3 WI Registered Agent.org $99$99/yr$297A physical in-state address; document scans in your account See WI Registered Agent.org pricing Partner link. We may earn money if you buy.

Service fees only, from each company's prices on November 13, 2026. State fees are identical whichever you pick.

Your questions, answered

Will the state insist on a registered agent?

Every LLC must name a registered agent with an in-state street address.

Cited law: Wis. Stat. § 183.0115. source docs.legis.wisconsin.gov (October 2026) on file

Who counts as a valid agent?

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.

An owner who qualifies can serve at no cost.

How much should I budget for an agent?

About $99 to $149 per year, and $297 to $447 for three.

Whoever you name, the state fees stay the same.

Why does a state want an LLC to have one?

The agent signs for legal documents sent to the LLC in Wisconsin.

The quality of an agent shows in its forwarding, so ask how documents reach you. What does service of process mean?

Are there yearly state charges?

Stay current on the annual report, filed every year for $25. The state gives the due date as end of the calendar quarter containing the LLC's anniversary date; do not miss it.

source dfi.wi.gov (August 2026) on file

What put the top pick on top?

Because of paperwork covered (29% of the weight): Mainstay Filing is best there.

Three-year price is worth 36% and paperwork covered 29%, with three smaller tests breaking ties.

Where a service can be used counts in our scoring, and one pick works everywhere.

See the scoring

Wisconsin rules at a glance

QuestionReplyWhere it is from
Formation fee $130source dfi.wi.gov (October 2026) on file
Registered agent Must be namedsource docs.legis.wisconsin.gov (October 2026) on file
Annual report $25 every yearsource dfi.wi.gov (August 2026) on file
Paid to the state by year 3 $180Added from the rows

The final row is a sum, not a state figure: filing fee, then years two and three of reports, then minimum tax where it applies.

Also asked

Am I allowed to be my own agent?

You can once you fit the rule. Owners often still hire a service to keep a home address off the record.

Where must the agent be?

The address has to be an actual physical location with a street address in Wisconsin, not solely a P.O. box, mailbox service or answering service.

What is the three-year bill for each?

$447 for Mainstay Filing, $297 for Wisconsin Registered Agent.co, $297 for WI Registered Agent.org

What is behind the figures?

State side: Wisconsin's published fee schedules and forms. Service side: the prices each company lists.

Is a service mandatory?

You can file yourself if you meet the rules on this page, and the state charges what it charges either way.

Which registered agent should I hire in Wisconsin?

Mainstay Filing is first on paperwork covered, with Wisconsin Registered Agent.co and WI Registered Agent.org behind it.

See also

Our evidence

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