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Business Basics LabLLC paperwork, measured state by state.

Lab sheet 3 · Wisconsin

Foreign LLC Registration, Wisconsin (2026): 4 Procedures and the 3 Best Services

For registering an LLC formed elsewhere in Wisconsin in 2026, the lab recommends Wisconsin Registered Agent.co ($199), WI Registered Agent.org ($199) and Mainstay Filing ($199), highest reading first. 4 procedures cover the filing, the $100 fee and the obligations that follow.

Recorded by the Business Basics Lab staff ·

Before the procedures

Registration fee
$100Specimen: dfi.wi.gov, logged October 2026
Recurring report
$65Annual report
Three years of state fees
$230Service fees excluded
Procedure count
4From first to last

After reading you will know

  • Which LLCs must register
  • The official form and fee
  • The recurring filing
  • The services we recommend

Best reading

Services that measured best in Wisconsin

The order follows five published criteria, set out in how we measure.
Begin here

1. Wisconsin Registered Agent.co: best for a budget registration

$199 with the $100 state fee, then $99 a year

Top of the Wisconsin readings is Wisconsin Registered Agent.co: registration reads $199 plus state fees, with year one of the agent already covered.

A lower three-year total than Mainstay Filing gives it first place; cost counts 36%.

What the price performs

  • Registration prepared and filed
  • Agent service for one year

Measured strengths

  • $199 above the state fee
  • $99 a year for the agent afterward
  • A year of agent service is included

Measured limits

  • The home state needs a separate agent
Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
In-state service

2. WI Registered Agent.org: best for Wisconsin-only registrations

$199 with the $100 state fee, then $99 a year

Reading 2 belongs to WI Registered Agent.org, because registration reads $199 plus state fees, with year one of the agent already covered.

On price it matches Wisconsin Registered Agent.co.

What the price performs

  • Registration prepared and filed
  • Agent service for one year

Measured strengths

  • A year of agent service is included
  • $199 above the state fee
  • $99 a year for the agent afterward

Measured limits

  • The home state needs a separate agent
Visit WI Registered Agent.orgPartner link. We may earn money if you buy.
Any state

3. Mainstay Filing: best for one provider for both states

$199 with the $100 state fee, then $149 a year

In third position is Mainstay Filing, where the Wisconsin registration measures $199 plus the state's fee, with the first agent year included.

Over three years it reads $100 behind Wisconsin Registered Agent.co.

Beyond year one, agent service measures $149 yearly.

What the price performs

  • Registration, prepared and submitted
  • No fee for the registered agent in year one
  • The same price in each state

Measured strengths

  • $199 plus the state fee
  • Registered agent free in year one
  • One price anywhere

Measured limits

  • A higher agent renewal ($149)
Visit Mainstay FilingPartner link. We may earn money if you buy.

Comparison of the services

#ServiceFirst yearFrom year twoThree-year total
1Wisconsin Registered Agent.co$199$99/yr$397Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
2WI Registered Agent.org$199$99/yr$397Visit WI Registered Agent.orgPartner link. We may earn money if you buy.
3Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
Prices are recorded from each company's own site on November 13, 2026. Each row requires Wisconsin's $100 registration fee on top.

The Wisconsin registration, in sequence

  1. Procedure 1: Establish whether the LLC must register in Wisconsin

    LLCs formed outside Wisconsin submit a foreign registration in order to transact business here. What follows from operating unregistered: The LLC's contracts can still be enforced (Wis. Stat. 183.0902(3)).

    Specimen: Specimen: dfi.wi.gov, logged October 2026

  2. Procedure 2: Select the Wisconsin registered agent

    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.

    TipThe readings above include this role.

    Specimen: Specimen: docs.legis.wisconsin.gov, logged October 2026

  3. Procedure 3: Send the Foreign Registration Statement, Limited Liability Company

    Delivering that filing completes the registration, and the state bills $100 for it.

    Specimen: Specimen: dfi.wi.gov, logged October 2026

  4. Procedure 4: What follows

    After registration, a foreign LLC files the annual report ($65), March 31.

What each procedure costs in Wisconsin

Cost itemGoes toTotal
Registering the LLCThe state$100
Annual reportThe state$65
A service, if usedService$199 for year one
Three-year state totalThe state$230
The state's fees were read from official pages, which are listed below. Over three years they come to the filing, two reports and, in some states, a minimum tax.

The reasoning behind the ranking

Measured cost over three years accounts for 36% of the reading, and it is where pulled ahead in Wisconsin.

The cost criterion goes to Wisconsin Registered Agent.co: $397 across three years, against $100 more at Mainstay Filing.

Common questions

What does an LLC from another state pay to register in Wisconsin?

$100 at the state office. Service fees: $199.

Which form do I file to register?

Foreign LLCs file this form with the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services.

What if the LLC does business there without registering?

The LLC's contracts can still be enforced (Wis. Stat. 183.0902(3)).

What is due after registering?

Keep the annual report in view; it costs $65.

Which services are in this lesson?

The picks are Wisconsin Registered Agent.co, WI Registered Agent.org and Mainstay Filing; prices appear in the table above.

Which service should handle the registration?

The order of the readings is Wisconsin Registered Agent.co, WI Registered Agent.org and Mainstay Filing. Wisconsin Registered Agent.co is first because $199 above the state fee, first agent year included, then $99 a year.

More sheets

Specimens and records

  1. To reproduce the Wisconsin Department of Financial Institutions, Division of Corporate result, consult dfi.wi.gov. Our observation of it is dated August 2026.
  2. To reproduce the Wisconsin Department of Financial Institutions, Division of Corporate result, consult dfi.wi.gov. Our observation of it is dated August 2026.
  3. To reproduce the Wisconsin report due date result, consult docs.legis.wisconsin.gov. Our observation of it is dated August 2026.
  4. To reproduce the Wis result, consult dfi.wi.gov. Our observation of it is dated August 2026.
  5. To reproduce the Wisconsin formation fee: Filing fee, official source result, consult dfi.wi.gov. Our observation of it is dated October 2026.
  6. To reproduce the Wisconsin registered agent statute result, consult docs.legis.wisconsin.gov. Our observation of it is dated October 2026.
  7. To reproduce the DFI Form 521, foreign registration statement for an result, consult dfi.wi.gov. Our observation of it is dated October 2026.
  8. To reproduce the DFI file online result, consult dfi.wi.gov. Our observation of it is dated October 2026.
  9. To reproduce the Wis result, consult docs.legis.wisconsin.gov. Our observation of it is dated October 2026.
  10. To reproduce the DFI Form 524, withdrawal of registration result, consult dfi.wi.gov. Our observation of it is dated October 2026.
  11. To reproduce the Wis result, consult docs.legis.wisconsin.gov. Our observation of it is dated November 2026.
  12. Recorded November 13, 2026 from the pricing page of Wisconsin Registered Agent.co
  13. Recorded November 13, 2026 from the pricing page of WI Registered Agent.org
  14. Recorded November 13, 2026 from the Wisconsin service page of Mainstay Filing