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Founder Primer

LLC paperwork, boiled down for founders.

Primer 3 · Wisconsin

Foreign LLC Registration in Wisconsin (2026): 4 Moves and the 3 Best Services

Our order for registering an LLC from another state in Wisconsin, 2026, is Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199). 4 moves and a $100 state fee; later reports cost $65 each.
From the Founder Primer desk

Key facts

Cost to register
$100
Official page: dfi.wi.gov (October 2026)
Report fee
$65
Annual report
Three years of state fees
$230
Registration, reports, any minimum tax
Primer moves
4
Listed below

Primer goals

  • When an LLC from elsewhere must register in Wisconsin
  • The form and the fee
  • The upkeep that repeats
  • The services we rank

If you want someone else to file

Five weighted criteria set the order (see how we score); three-year cost and to-dos cleared count most.

Our pick $199 plus the $100 state fee, then $149 a year

1. Mainstay Filing: best for companies adding a state

Mainstay Filing leads the list, since $199 plus the state fee, with year one of the registered agent free and $149 a year after.

Wisconsin Registered Agent.co is $100 cheaper over three years; this one still places higher because it does more of the work.

Year two onward, the agent runs $149 annually, and that holds in every state.

Inside the price
  • Registration filing
  • Registered agent free in year one
  • A fifty-state service
In its favor
  • First agent year included
  • A $199 service fee
  • Same fee in every state
Against it
  • A pricier agent renewal ($149)
Visit Mainstay Filing Partner link. We may earn money if you buy.
Wisconsin focus $199 plus the $100 state fee, then $99 a year

2. Wisconsin Registered Agent.co: best for a cheap Wisconsin filing

Wisconsin Registered Agent.co lands second: $199 plus state fees to register; the agent is paid through year one.

Inside the price
  • The Wisconsin registration, prepared and sent
  • One year of agent service
In its favor
  • Agent covered in year one
  • $199 to register
  • $99 a year for the agent after
Against it
  • A one-state service
Visit Wisconsin Registered Agent.co Partner link. We may earn money if you buy.
Wisconsin focus $199 plus the $100 state fee, then $99 a year

3. WI Registered Agent.org: best for another Wisconsin option

WI Registered Agent.org lands third: $199 plus state fees to register; the agent is paid through year one.

It lists the same prices as Wisconsin Registered Agent.co.

Inside the price
  • The Wisconsin registration, prepared and sent
  • One year of agent service
In its favor
  • $99 a year for the agent after
  • $199 to register
  • Agent covered in year one
Against it
  • A one-state service
Visit WI Registered Agent.org Partner link. We may earn money if you buy.

The Wisconsin picks compared

# Service First year From year two Three-year total
1 Mainstay Filing $199 $149/yr $497 Visit Mainstay Filing Partner link. We may earn money if you buy.
2 Wisconsin Registered Agent.co $199 $99/yr $397 Visit Wisconsin Registered Agent.co Partner link. We may earn money if you buy.
3 WI Registered Agent.org $199 $99/yr $397 Visit WI Registered Agent.org Partner link. We may earn money if you buy.

Each company's listed price on November 13, 2026. Every row owes the $100 state fee as well.

Registering with Wisconsin, move by move

  1. Move 1

    Is Wisconsin registration needed?

    Operating here through an LLC formed elsewhere means foreign registration. Operating unregistered costs you: Signed contracts keep their force (Wis. Stat. 183.0902(3)).

    Where this comes from: Official page: dfi.wi.gov (October 2026)

  2. Move 2

    Choose 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.

    Our picks cover this.

    Where this comes from: Official page: docs.legis.wisconsin.gov (October 2026)

  3. Move 3

    Prepare the Foreign Registration Statement, Limited Liability Company

    That filing is the registration, and it costs $100.

    Where this comes from: Official page: dfi.wi.gov (October 2026)

  4. Move 4

    Handle Wisconsin's repeating filing

    File the annual report for $65, March 31 and the registration stays alive.

What you will pay

What Goes to Total
Foreign registration State agency $100
Annual report State agency $65
Optional service Service company $199 to begin
Three-year state total State agency $230

Filing plus the reports in years two and three plus any minimum tax: that is the state's three-year total. Sources are listed below.

How we ordered the Wisconsin picks

edged out on to-dos the price takes off you, worth 38%.

The company lives in one state and operates in another, which favors a single provider.

What founders ask

How much is Wisconsin's fee for an out-of-state LLC?

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

Which form do I file to register?

Fill in the form named in move 4 and send it to the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services.

What if the LLC does business there without registering?

Signed contracts keep their force (Wis. Stat. 183.0902(3)).

What is due after registering?

The annual report keeps the registration alive, at $65.

Which services are in this lesson?

We score three: Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199).

Which service should handle the registration?

Our order: Mainstay Filing, Wisconsin Registered Agent.co and WI Registered Agent.org. Mainstay Filing leads because it files the Wisconsin registration for $199 plus the state's fee, and the first agent year is on the house.

See also

Sources, so you can check us

  1. Proof for Wisconsin Department of Financial Institutions, Division of Corporate: the claims lean on dfi.wi.gov, which we last read in August 2026. Open it and compare.
  2. Proof for Wisconsin Department of Financial Institutions, Division of Corporate: the claims lean on dfi.wi.gov, which we last read in August 2026. Open it and compare.
  3. Proof for Wisconsin report due date: the claims lean on docs.legis.wisconsin.gov, which we last read in August 2026. Open it and compare.
  4. Proof for Wis: the claims lean on dfi.wi.gov, which we last read in August 2026. Open it and compare.
  5. Proof for Wisconsin formation fee: Filing fee, official source: the claims lean on dfi.wi.gov, which we last read in October 2026. Open it and compare.
  6. Proof for Wisconsin registered agent statute: the claims lean on docs.legis.wisconsin.gov, which we last read in October 2026. Open it and compare.
  7. Proof for DFI Form 521, foreign registration statement for an: the claims lean on dfi.wi.gov, which we last read in October 2026. Open it and compare.
  8. Proof for DFI file online: the claims lean on dfi.wi.gov, which we last read in October 2026. Open it and compare.
  9. Proof for Wis: the claims lean on docs.legis.wisconsin.gov, which we last read in October 2026. Open it and compare.
  10. Proof for DFI Form 524, withdrawal of registration: the claims lean on dfi.wi.gov, which we last read in October 2026. Open it and compare.
  11. Proof for Wis: the claims lean on docs.legis.wisconsin.gov, which we last read in November 2026. Open it and compare.
  12. Mainstay Filing Wisconsin service page as of November 13, 2026
  13. Wisconsin Registered Agent.co pricing page as of November 13, 2026
  14. WI Registered Agent.org pricing page as of November 13, 2026