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Straight talk · Wisconsin

3 Best Registered Agents in Wisconsin (2026), No Jargon

If you need registered agents in Wisconsin in 2026, we'd go with Mainstay Filing ($149 a year), Wisconsin Registered Agent.co ($99 a year) and WI Registered Agent.org ($99 a year), in that order. An agent runs $99 to $149 for the first year and $297 to $447 over three years.
From the LLC Plainly editorial team

Short answer

Does the law demand one?
Required
Official title
Registered agent
Service price
$99 to $149 each year
Our ranking
Mainstay Filing, Wisconsin Registered Agent.co then WI Registered Agent.org

Our favorites in Wisconsin

Ranked best first using the checks on our method page.
Number one

1. Mainstay Filing: best for companies in more than one state

Year one $149; each renewal $149

Mainstay Filing gets the top spot: $149 a year is what it charges here and in every other state.

That $150 gap to Wisconsin Registered Agent.co over three years is what coverage in every state costs.

Your money buys

  • Registered office on file
  • Free scans of three government mailings a year
  • Works for LLCs, corporations, LPs, LLPs and nonprofits too

The good

  • $149 every year, no increase
  • Good wherever the LLC registers

Trade-offs

  • You'd pay $50 more every year
  • It's the agent role only, with no report filing
Wisconsin only

2. Wisconsin Registered Agent.co: best for keeping three-year cost low

Year one $99; each renewal $99

Why Wisconsin Registered Agent.co second? Honestly, its agent service costs $99 a year and puts a street address on file for you.

Your money buys

  • An in-state street address
  • Online copies of any legal papers

The good

  • A smaller yearly bill than Mainstay Filing
  • Just $99 a year

Trade-offs

  • Works in Wisconsin and nowhere else
  • You'll have to remember the annual report on your own
Wisconsin only

3. WI Registered Agent.org: best for owners who like a local company

Year one $99; each renewal $99

Why WI Registered Agent.org third? Honestly, its agent service costs $99 a year and puts a street address on file for you.

Its prices match Wisconsin Registered Agent.co exactly, so either one works.

Your money buys

  • An in-state street address
  • Online copies of any legal papers

The good

  • Just $99 a year
  • A smaller yearly bill than Mainstay Filing

Trade-offs

  • Works in Wisconsin and nowhere else
  • You'll have to remember the annual report on your own

The numbers side by side

#CompanyYear oneRenews atOver three yearsWhat you get
1Mainstay Filing$149$149/yr$447registered office on file; free scans of three government mailings a year; Works for LLCs, corporations, LPs, LLPs and nonprofits tooCheck out Mainstay FilingPartner link. We may earn money if you buy.
2Wisconsin Registered Agent.co$99$99/yr$297An in-state street address; online copies of any legal papersCheck out Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
3WI Registered Agent.org$99$99/yr$297An in-state street address; online copies of any legal papersCheck out WI Registered Agent.orgPartner link. We may earn money if you buy.
Prices as of November 13, 2026. Your state's own fees are in the checklist below.

Your questions, answered

Could I skip naming a registered agent?

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

Cited law: Wis. Stat. § 183.0115. docs.legis.wisconsin.gov · October 2026 · checked

Who can I name as my 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 meets the rule may be the agent with no charge from the state.

What should I budget for an agent?

Prices start at $99 to $149 a year, and three years total $297 to $447.

Whoever you name, state fees stay the same.

What's the agent there for?

When a lawsuit or state letter reaches your LLC in Wisconsin, the agent is who receives it.

A good agent tells you promptly when something arrives, so no deadline slips by. What does "service of process" mean?

Are there yearly charges besides the agent?

Put $25 aside every year for the annual report. The due date, per the state, is end of the calendar quarter containing the LLC's anniversary date; put it on your calendar.

dfi.wi.gov · August 2026 · checked

Why is the list in this order?

Work taken off your hands, worth 31%, put Mainstay Filing first.

We start with cost across three years, move to work taken off your hands, and finish with three smaller checks.

It's the only pick that works in all fifty states, which pays off the day your LLC registers elsewhere.

The five checks

Wisconsin requirements, with sources

WhatDetailsOfficial source
Cost to form the LLC$130dfi.wi.gov · October 2026 · checked
Registered agentRequireddocs.legis.wisconsin.gov · October 2026 · checked
Annual report$25 every yeardfi.wi.gov · August 2026 · checked
Paid to the state by year three$180Sum of the figures above
The bottom row isn't a state figure. It's our total of the filing fee, the next two reports and the minimum tax, if the state has one.

A few more

Is it okay to be my own agent?

Yes, as long as you fit the rule. Many owners still hire a service for privacy.

What address does the agent need?

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.

After three years, what have I paid?

Three-year totals are Mainstay Filing, $447; Wisconsin Registered Agent.co, $297; WI Registered Agent.org, $297

Where did you get these numbers?

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

Is a filing service a must?

Not required. What you'd pay a service is for convenience.

Who do you like best in Wisconsin?

Mainstay Filing is on top because its price doesn't change by state: $149 a year, $149 at renewal; Wisconsin Registered Agent.co and WI Registered Agent.org follow.

What we used for this page

  1. dfi.wi.gov covers Wisconsin Department of Financial Institutions; we confirmed it August 2026
  2. dfi.wi.gov covers Wisconsin Department of Financial Institutions; we confirmed it August 2026
  3. docs.legis.wisconsin.gov covers Wisconsin report due date; we confirmed it August 2026
  4. dfi.wi.gov covers Wis; we confirmed it August 2026
  5. dfi.wi.gov covers Wisconsin formation fee: Filing fee; we confirmed it October 2026
  6. docs.legis.wisconsin.gov covers Wisconsin registered agent statute; we confirmed it 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