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3 Best Registered Agents in Wisconsin (2026): A Simple Guide

For registered agents in Wisconsin, we recommend Wisconsin Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and WI Registered Agent.org ($99 a year) in 2026, ranked from first to last. Year one costs $99 to $149, and three years cost $297 to $447.
Written by the Simple Filing Guide editorial team

The short route

Must you have one?
Required
Name used by the state
Registered agent
Typical service price
$99 to $149 on a yearly basis
Where to start
Wisconsin Registered Agent.co, Mainstay Filing then WI Registered Agent.org

Recommended in Wisconsin

Ranked best first using the checks described on the method page.

#1 Number 1

1. Wisconsin Registered Agent.co: best for tight budgets

$99 yearly, renewing for $99

Wisconsin Registered Agent.co is our first recommendation because a company that never leaves Wisconsin pays $297 over three years.

Compare the three-year totals: it lands under Mainstay Filing, and cost is the check we weigh most.

Checklist: what is included
  • A local address on file
  • Service papers posted online
What works
  • Below Mainstay Filing on yearly price
  • Flat $99 a year, no change at renewal
Gaps
  • A second state needs a second agent
  • Not included: the annual report
Start with Wisconsin Registered Agent.co Partner link. We may earn money if you buy.
#2 Works in every state

2. Mainstay Filing: best for multi-state companies

$149 yearly, renewing for $149

Mainstay Filing is second, because the price does not change by state: $149 a year, $149 at renewal.

At $150 above Wisconsin Registered Agent.co over three years, it sits lower in the ranking.

Checklist: what is included
  • A physical address on file
  • Three official mailings a year scanned at no charge
  • Works for LLCs, corporations, LPs, LLPs and nonprofits
What works
  • Only $149 a year
  • Usable wherever the LLC registers
Gaps
  • Higher yearly bill by $50
  • Report filing requires the formation package
Start with Mainstay Filing Partner link. We may earn money if you buy.
#3 Wisconsin only

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

$99 yearly, renewing for $99

WI Registered Agent.org follows since a company that never leaves Wisconsin pays $297 over three years.

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

Checklist: what is included
  • A local address on file
  • Service papers posted online
What works
  • Flat $99 a year, no change at renewal
  • Below Mainstay Filing on yearly price
Gaps
  • A second state needs a second agent
  • Not included: the annual report
Start with WI Registered Agent.org Partner link. We may earn money if you buy.

Costs side by side

#ProviderFirst-year priceYearly afterTotal for 3 yearsIncluded
1 Wisconsin Registered Agent.co $99$99/yr$297A local address on file; service papers posted online Start with Wisconsin Registered Agent.co Partner link. We may earn money if you buy.
2 Mainstay Filing $149$149/yr$447A physical address on file; three official mailings a year scanned at no charge; Works for LLCs, corporations, LPs, LLPs and nonprofits Start with Mainstay Filing Partner link. We may earn money if you buy.
3 WI Registered Agent.org $99$99/yr$297A local address on file; service papers posted online Start with WI Registered Agent.org Partner link. We may earn money if you buy.

We read these prices on November 13, 2026, and three years means year one plus two renewals.

Step by step

Must I name a registered agent?

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

Check the law: Wis. Stat. § 183.0115. verify at docs.legis.wisconsin.gov, as of October 2026

Who qualifies as an 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.

When you fit the rule, you can fill the role for free.

How much does an agent cost?

Yearly prices start at $99 to $149, and three years total $297 to $447.

State fees stay the same whoever you name.

Why does the state want an agent?

It collects lawsuits and official state mail for the LLC at an address in Wisconsin.

The aim is that nothing important sits unnoticed while you are away. What is service of process?

What else comes due each year?

File the annual report once a year. The fee is $25. The state's due date reads: end of the calendar quarter containing the LLC's anniversary date. Note it early.

verify at dfi.wi.gov, as of August 2026

What decided the ranking?

Wisconsin Registered Agent.co wins on total for three years, a 37% check.

64% of the score comes from total for three years and filing jobs included.

Wisconsin Registered Agent.co totals $297 across three years, which is $150 under Mainstay Filing.

Read the method

Wisconsin agent checklist

StepWhat to knowVerify
Fee to file the LLC $130verify at dfi.wi.gov, as of October 2026
Registered agent Requiredverify at docs.legis.wisconsin.gov, as of October 2026
Annual report $25 every yearverify at dfi.wi.gov, as of August 2026
Paid to the state by year three $180Added from the rows

The final row is a sum that we calculated, not a figure printed by the state: filing, two reports and any minimum tax.

FAQ

Do I have to pay an agent?

Yes, if you meet the state rules on who can serve and on the address, both shown above.

What is the address requirement?

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.

Over three years, what does each charge?

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

What sources do you use?

State-set fees come from Wisconsin's publications; what services charge comes from the prices they post.

Is a service required by law?

If you meet the rules on this page, you can file on your own, and the state charges the same either way.

What is the best registered agent for Wisconsin?

Wisconsin Registered Agent.co, because one state, $99 a year, $99 after renewal. Then Mainstay Filing and WI Registered Agent.org.

References

  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. Pricing from the Wisconsin Registered Agent.co pricing page, November 13, 2026
  8. Pricing from the Mainstay Filing Wisconsin service page, November 13, 2026
  9. Pricing from the WI Registered Agent.org pricing page, November 13, 2026