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Foreign registration quote boards · Wisconsin

3 Best Foreign Registration Services in Wisconsin (2026): Live Quotes

On the 2026 Wisconsin board, Mainstay Filing ($199), WI Registered Agent.org ($199) and Wisconsin Registered Agent.co ($199) come out first, second and third among foreign registration services. Fixed: $100 at the state. Variable: $397 to $497 in service fees by year three.

Readings by the LLC Cost Lab editorial team

Ranked on: Cost weighs 36% and filings handled 30% in the ranking

Board summary

State registration charge$100dfi.wi.gov (logged October 2026) for the record
Year-one band$199State fee not included
Quotes over three years$397 to $497Year one with two renewals
Government charges, 3 years$230Independent of the provider
First crossingNeverStable ranking

Wisconsin quote board

Ranked by the lab method. No quote includes the $100 state fee.

1. Mainstay Filing: best for LLCs still growing

Best reading

$199 on top of Wisconsin's $100; renewal $149

Opening quote
$199
Quote from year 2
$149/yr
Reading at year 3
$497

Mainstay Filing reads best in Wisconsin: a $199 service charge in any state, first agent year included.

The $100 premium over WI Registered Agent.org at year three buys coverage, and coverage decides this ranking.

The agent renews at $149 a year in every state.

Quote includes

  • Registration paperwork, filed
  • Registered agent costs nothing the first year
  • The same fee in each state

Reads well

  • Helpful if another state follows
  • The first agent year is covered
  • Service charge of $199

Reads poorly

  • $50 above WI Registered Agent.org at renewal
Visit Mainstay FilingPartner link. We may earn money if you buy.

2. WI Registered Agent.org: best for a single added state

Wisconsin focus

$199 on top of Wisconsin's $100; renewal $99

Opening quote
$199
Quote from year 2
$99/yr
Reading at year 3
$397

Next on the board, WI Registered Agent.org: $397 in service fees over three years.

Quote includes

  • Registration paperwork, filed
  • Agent service for the first year

Reads well

  • Service fee of $199
  • Agent included to start
  • A modest $99 renewal

Reads poorly

  • Wisconsin only, so the home state needs its own agent
Visit WI Registered Agent.orgPartner link. We may earn money if you buy.

3. Wisconsin Registered Agent.co: best for another in-state filer

Wisconsin focus

$199 on top of Wisconsin's $100; renewal $99

Opening quote
$199
Quote from year 2
$99/yr
Reading at year 3
$397

Next on the board, Wisconsin Registered Agent.co: $397 in service fees over three years.

Quote for quote, it ties WI Registered Agent.org.

Quote includes

  • Registration paperwork, filed
  • Agent service for the first year

Reads well

  • A modest $99 renewal
  • Service fee of $199
  • Agent included to start

Reads poorly

  • Wisconsin only, so the home state needs its own agent
Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.

Year-by-year readings

RankQuote fromReading, year 1Reading, year 2Reading, year 3Reading, year 5
1Mainstay Filing$199$348$497$795Visit Mainstay FilingPartner link. We may earn money if you buy.
2WI Registered Agent.org$199$298$397$595Visit WI Registered Agent.orgPartner link. We may earn money if you buy.
3Wisconsin Registered Agent.co$199$298$397$595Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
Service fees only, from each company's prices sampled November 13, 2026. The ranking by cumulative cost is stable for ten years.

Try another time span

How long will the company run? Set the years and compare.
At 3 years, the readings are Mainstay Filing $497, WI Registered Agent.org $397, Wisconsin Registered Agent.co $397. Quote with the lowest total: WI Registered Agent.org.

Wisconsin fee schedule

ChargeValueReference
Registration charge$100dfi.wi.gov (logged October 2026) for the record
Annual report$65dfi.wi.gov (logged October 2026) for the record
State fees over three years$230Our sum
The three-year state reading adds the filing fee, the reports due in years two and three and any yearly minimum tax. Costs with no fixed amount, such as newspaper publication, are noted but not summed.

Why quote one is quote one

Mainstay Filing wins filings handled per dollar, worth 30%, with WI Registered Agent.org right behind.

Several states at one price beat WI Registered Agent.org's lower renewal.

Wisconsin foreign LLC registration fee and rules, quoted from the source

Doing business in Wisconsin with an LLC from another state takes the Foreign Registration Statement, Limited Liability Company (Form 521), lodged at the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services for $100.

Quoted text: dfi.wi.gov (logged October 2026) for the record

The no-service reading

Going without a service, you still owe Wisconsin $230 across three years and you handle every form. The services bill $397 to $497 for that work.

About these readings

What is the price of registering a foreign LLC with Wisconsin?

$100 at the state office, before service fees of $199.

What do the quotes add up to over three years?

Year one plus two renewals reads $397 to $497.

Which form carries out the registration?

The filing is Foreign Registration Statement, Limited Liability Company (Form 521), lodged at the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services.

Which recurring filing follows registration?

The annual report, billed at $65.

When does one quote pass another in total cost?

No break-even inside ten years.

Which foreign registration service ranks first for Wisconsin?

The top quote is Mainstay Filing, then WI Registered Agent.org, then Wisconsin Registered Agent.co.

See also

Logged references

  1. Wisconsin Department of Financial Institutions: see dfi.wi.gov, sampled August 2026.
  2. Wisconsin Department of Financial Institutions: see dfi.wi.gov, sampled August 2026.
  3. Wisconsin report due date: see docs.legis.wisconsin.gov, sampled August 2026.
  4. Wis: see dfi.wi.gov, sampled August 2026.
  5. Wisconsin formation fee: Filing fee: see dfi.wi.gov, sampled October 2026.
  6. Wisconsin registered agent statute: see docs.legis.wisconsin.gov, sampled October 2026.
  7. DFI Form 521, foreign registration: see dfi.wi.gov, sampled October 2026.
  8. DFI file online: see dfi.wi.gov, sampled October 2026.
  9. Wis: see docs.legis.wisconsin.gov, sampled October 2026.
  10. DFI Form 524, withdrawal of: see dfi.wi.gov, sampled October 2026.
  11. Wis: see docs.legis.wisconsin.gov, sampled November 2026.
  12. November 13, 2026 sample from the Mainstay Filing Wisconsin service page
  13. November 13, 2026 sample from the WI Registered Agent.org pricing page
  14. November 13, 2026 sample from the Wisconsin Registered Agent.co pricing page