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Formation Rated

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Registered agent ratings · Wisconsin

3 Best Registered Agents in Wisconsin (2026)

From the Formation Rated editorial team
Formation Rated's 2026 ratings for registered agents in Wisconsin, highest first: Wisconsin Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and WI Registered Agent.org ($99 a year). Wisconsin Registered Agent.co holds the top rating: $99 a year, level on renewal, the lowest yearly price on this list.
Position1
Number one here

1. Wisconsin Registered Agent.co: best for the lowest yearly amount on this list

$99 a year, level on renewal

Our score9.5out of 10

Wisconsin Registered Agent.co is rated first: a Wisconsin specialist at $99 a year, providing an in-state registered office street address.

Wisconsin Registered Agent.co provides the registered office address inside the state and uploads scans of whatever is served there.

Over three years it sums lower than Mainstay Filing, and cost is one of our two heaviest criteria.

What you get

  • A street address in the state for the registered office
  • Legal papers served on the company reach you as online scans

Pros

  • Comes in under Mainstay Filing each year
  • A $99 plan that stays level
  • Forms LLCs as well, first agent year included

Trade-offs

  • The annual report remains your own filing
  • Wisconsin only; other states need another agent
Position2
Best all-in coverage

2. Mainstay Filing: best for any state

$149 a year, level on renewal

Our score9.1out of 10

Mainstay Filing is rated second: $149 a year, level on renewal, with papers served on the company scanned the same business day at no fee.

Company not formed yet? Mainstay's $199-a-year package puts the Wisconsin filing and the annual report on one line.

Wisconsin Registered Agent.co is $150 cheaper on the three-year sum, and that lowers Mainstay Filing's cost rating.

What you get

  • A street address in the state on the public record
  • Same-business-day scanning of served papers, at no cost
  • Free scans of the first three government mailings each year
  • Compliance reminders

Pros

  • Government mail scanned free, first three pieces a year
  • Same-business-day scans of service of process, no fee
  • Accepts LLCs, corporations, LPs, LLPs and nonprofits
  • $149 a year, level on renewal

Trade-offs

  • Agent alone is $50 a year above Wisconsin Registered Agent.co
  • On the agent plan you file your own annual report
Visit Mainstay FilingPartner link. We may earn money if you buy. The Mainstay Filing entry
Position3
Wisconsin only

3. WI Registered Agent.org: best for businesses in Wisconsin

$99 a year, level on renewal

Our score8.8out of 10

WI Registered Agent.org is rated third: a Wisconsin specialist at $99 a year, providing an in-state registered office street address.

Through WI Registered Agent.org, the company's registered office has a street address in the state, and served legal papers are scanned online.

WI Registered Agent.org copies Wisconsin Registered Agent.co on amounts and plan features, so there is little between them.

What you get

  • The in-state address the state requires on file
  • Legal papers served on the company reach you as online scans

Pros

  • Forms LLCs as well, first agent year included
  • A $99 plan that stays level
  • Less per year than Mainstay Filing

Trade-offs

  • The annual report remains your own filing
  • Wisconsin only; other states need another agent
Visit WI Registered Agent.orgPartner link. We may earn money if you buy. The WI Registered Agent.org entry

The 3 ratings summarized

LineServiceRatingYearly amountRenewal amountBest forOpen
1 Wisconsin Registered Agent.co 9.5 $99 $99/yr The lowest yearly price we rank here Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
2 Mainstay Filing 9.1 $149 $149/yr A single agent in any state Visit Mainstay FilingPartner link. We may earn money if you buy.
3 WI Registered Agent.org 8.8 $99 $99/yr The lowest yearly price we rank here Visit WI Registered Agent.orgPartner link. We may earn money if you buy.
Our editors assign the ratings out of 10 from the criteria on How we rank. None come from customers.

Wisconsin registered agent amounts for 2026: year one, renewal and three-year sum

ServiceYear oneYear twoYear threeThree-year sumSame amount on renewal
Wisconsin Registered Agent.co$99$99$99$297Yes
Mainstay Filing$149$149$149$447Yes
WI Registered Agent.org$99$99$99$297Yes
Each amount was read from the company's own site on November 12, 2026. Wisconsin's own fees are identical for every agent named.

How the lines were rated

The rating method counts cost over years one to three and inclusions per price at 27% each and splits 46% among renewal price and terms, fit with state rules and price clarity. For Wisconsin, cost over years one to three was the deciding line.

Wisconsin Registered Agent.co sums to $297 across three years, $150 below Mainstay Filing. For a company that needs an agent in Wisconsin only, fifty-state coverage adds little, so the lower yearly amount decided the rating.

Each criterion and its weight is listed on How we rank.

Wisconsin registered agent requirements per the Department of Financial Institutions (DFI) (official)

Every LLC must name a registered agent with an in-state street address. 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. Authority cited: Wis. Stat. § 183.0115.

The Wisconsin annual report: amount, date and agent

Wisconsin LLCs owe the annual report every year, due end of the calendar quarter containing the LLC's anniversary date. Amount: $25. Late filing adds $25. The state sends notices about it to your registered agent.

Wisconsin registered agent: your questions

Does a Wisconsin LLC need to appoint a registered agent?

It does. Wisconsin treats a registered agent as a standing requirement, and the agent needs a street address within the state.

What is the yearly price of a registered agent in Wisconsin?

Yearly amounts run $99 to $149, and each holds on renewal.

Is it permitted to be your own registered agent?

Yes, when the state's conditions are met. 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.

On what date is the Wisconsin annual report due?

Due end of the calendar quarter containing the LLC's anniversary date. Fee: $25. Late penalty: $25.

Which registered agents are rated on this page?

Wisconsin Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and WI Registered Agent.org ($99 a year), highest rated first.

Which Wisconsin registered agent has the best value rating?

Wisconsin Registered Agent.co, as $99 a year, flat, with online scans of legal papers served.

Source lines

  1. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (ledger date August 2026)
  2. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (ledger date August 2026)
  3. Wisconsin report due date (ledger date August 2026)
  4. Wis. Stat. § 183.0201 (ledger date August 2026)
  5. Wisconsin formation fee: Filing fee, official source (ledger date October 2026)
  6. Wisconsin registered agent statute (ledger date October 2026)
  7. Wisconsin Registered Agent.co, pricing and service pages: amounts read November 12, 2026
  8. Mainstay Filing, Wisconsin service page: amounts read November 12, 2026
  9. WI Registered Agent.org, pricing and service pages: amounts read November 12, 2026