3 Best Foreign Registration Services in Wisconsin (2026): Prices Tracked
After this 2026 price pass on Wisconsin foreign registration services, the order is Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199). Registering in Wisconsin costs $100 at the state, and the services add $397 to $497 across three years.
Tracked by the Filing Price Watch editorial team
Ordered by:
Best value first, using our five measures
Wisconsin price snapshot
What the state charges to register$100dfi.wi.gov (pulled October 2026, noted here)
First-year price range$199Excludes government fees
Three-year spend$397 to $497Year one and both renewals
State fees by year three$230Official figures only
Break-evenNeverSame order for ten years
Wisconsin: best value first
Services are ordered by value, and every price comes from a company page. The $100 state fee is kept outside the prices.
#Ordered byPrice in year 1Price at renewalThree-year spend
1
Best value
1. Mainstay Filing: best for adding states as you grow
$199 for registration, $149 for the agent after that
Price in year 1$199
Price after year 1$149/yr
Three-year spend$497
First on the watchlist is Mainstay Filing. $199 on top of what Wisconsin charges, then $149 a year for the agent.
What it costs over Wisconsin Registered Agent.co is $100 by year three, and what it covers is why it ranks higher.
Once the free year ends, the agent charges $149 a year.
Price covers
Registration done for you
Registered agent is free in year one
The same fee in every state
Holds up
The fee does not change by state
$199 on top of the state's fee
The first agent year is paid
Weak spots
$50 above Wisconsin Registered Agent.co at renewal
2
Wisconsin only
2. Wisconsin Registered Agent.co: best for adding just one state
$199 for registration, $99 for the agent after that
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
Wisconsin Registered Agent.co places second. $199 past the state fee, and $99 per year later.
Price covers
Registration done for you
A year of agent service to begin with
Holds up
First agent year included
$199 on top of the state fee
A small $99 renewal
Weak spots
The home state needs a different agent
3
Wisconsin only
3. WI Registered Agent.org: best for a single added state
$199 for registration, $99 for the agent after that
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
WI Registered Agent.org places third. $199 past the state fee, and $99 per year later.
Both the first-year and renewal prices equal Wisconsin Registered Agent.co's.
The state's share is worked out from three pieces: what it charges to file, what it charges for the next two reports, and any minimum tax. Anything without a fixed price, newspaper notices for instance, is left out of that figure.
Notes on the ranking
The 29% measure filings covered by the price separated the top two.
Since the LLC lives in two states, coverage settled it.
Wisconsin foreign LLC registration fee and rules, as written by the state
An LLC from another state has to register in Wisconsin before doing business here. You file the Foreign Registration Statement, Limited Liability Company (Form 521) with the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services and pay $100.
Official text: dfi.wi.gov (pulled October 2026, noted here)
Filing it yourself
$230 in state fees is the lowest the three years can cost. The list shows what each service puts on top ($397 to $497).
Short answers
How much does it cost to register a foreign LLC with Wisconsin?
$100 as the official fee, plus $199 if you pay a service for year one.
What do these services cost over three years?
$397 to $497 across these services, not counting state fees.
What form registers the LLC?
The registration is Foreign Registration Statement, Limited Liability Company (Form 521), filed with the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services.
What recurring filing comes after registration?
It is the annual report, at $65.
In what year does one service become pricier than another?
The order stays the same for ten years.
Which foreign registration service is the best value for Wisconsin?
On our five measures the Wisconsin order is Mainstay Filing, Wisconsin Registered Agent.co and WI Registered Agent.org, with Mainstay Filing ahead on filings covered by the price.