Mainstay Filing takes the top spot because the fee is $199 plus the state's own, with a free first year as registered agent, and the price is identical in every state.
Year one as agent costs nothing; every year after it is $149, wherever the company registers.
Its three-year total is $100 above Wisconsin Registered Agent.co's, and what the price covers justifies that gap for us.
In the price
- The registration filing prepared and submitted
- Your registered agent for year one at no charge
- Papers served on the company scanned free on the day they arrive
Good
- No charge for registered agent service in year one
- $199 service fee, with the state's fee added
- Papers served on the company are scanned the same business day at no charge
- The same price in each of the fifty states
Watch for
- The agent is $149 a year after year one, $50 above Wisconsin Registered Agent.co
Wisconsin Registered Agent.co makes the list at number two because $199 above the state fee gets the company registered in Wisconsin, and the agent renews at $99.
The registered office is an in-state street address supplied by the plan, and any papers served on the company show up as scans in your online account.
In the price
- Wisconsin registration filed for you
- One year of registered agent service to start
Good
- Year one as your registered agent is covered
- The agent is $99 a year from year two
- Registration costs $199 before the state fee
Watch for
- Wisconsin only; your home state needs its own agent
- The EIN application is an extra charge ($99)
WI Registered Agent.org makes the list at number three because $199 above the state fee gets the company registered in Wisconsin, and the agent renews at $99.
The registered office is an in-state street address supplied by the plan, and any papers served on the company show up as scans in your online account.
We found no difference in price or features between Wisconsin Registered Agent.co and WI Registered Agent.org; choose whichever you prefer.
In the price
- Wisconsin registration filed for you
- One year of registered agent service to start
Good
- Registers the company for $199 and the state fee
- Covers your first year of registered agent service
- $99 a year afterward for the agent
Watch for
- Wisconsin only; your home state needs its own agent
- The EIN application is an extra charge ($99)
The 3 picks side by side
Each number out of 10 is our own mark, drawn from the weighted criteria on How we rank, and not a customer rating.
Wisconsin foreign registration service pricing in 2026: first year, renewals, three-year total
Every price comes from the company's own pages as of November 12, 2026. The $100 Wisconsin registration fee comes on top of each row and is left out of the totals.
What decided the order
Filing Shortlist puts 28% of the weight on three-year price and 28% on what the price covers. The remaining 44% goes to renewal terms, fit for the state and price clarity, and for Wisconsin the deciding factor was what the price covers.
Registering in a second state touches two states, and one provider with one price in both scored highest on coverage, ahead of Wisconsin Registered Agent.co.
Every criterion and weight is set out on How we rank.
Registering a foreign LLC in Wisconsin: fee, form and office
Registration goes to the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services on the Foreign Registration Statement, Limited Liability Company (Form 521). The state fee is $100.
Each year after that, the company files the annual report for $65, due March 31.
What to have ready before you file
- The company's exact legal name and its formation date in the home state.
- A registered agent at a street address in the state. Every company on this shortlist can be that agent.
- Payment of the $100 state fee with the filing.
- A reminder in your own calendar for the annual report and its $65 fee.
The cost of skipping Wisconsin registration
Its contracts remain valid (Wis. Stat. 183.0902(3)).
Common questions about Wisconsin foreign registration services
Must an LLC from another state register in Wisconsin?
It must, once it does business in the state.
What is the full price of a foreign LLC registration in Wisconsin?
The state fee is $100, and service fees run $199.
What is the Wisconsin foreign registration form called?
It is the Foreign Registration Statement, Limited Liability Company (Form 521), submitted to the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services.
Does a registered foreign LLC still need a registered agent?
Yes. The company keeps a registered agent in the state, at a street address there, for as long as it stays registered.
Which foreign registration services made this shortlist?
Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199), listed from the top pick down.
Which service leads the Wisconsin foreign registration shortlist?
Mainstay Filing, because it charges $199 on top of the state fee, serves as registered agent free for year one and prices every state the same.
Where the figures come from
- Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (checked again August 2026)
- Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (checked again August 2026)
- Wisconsin report due date (checked again August 2026)
- Wis. Stat. § 183.0201 (checked again August 2026)
- Wisconsin formation fee: Filing fee, official source (checked again October 2026)
- Wisconsin registered agent statute (checked again October 2026)
- DFI Form 521, foreign registration statement for an LLC (checked again October 2026)
- DFI file online (checked again October 2026)
- Wis. Stat. ss. 183.0902 and 183.0905 (checked again October 2026)
- DFI Form 524, withdrawal of registration (checked again October 2026)
- Wis. Stat. 183.0902, registration to do business in this state (checked again November 2026)
- Pulled from Mainstay Filing: Wisconsin service page, November 12, 2026
- Pulled from Wisconsin Registered Agent.co: pricing and service pages, November 12, 2026
- Pulled from WI Registered Agent.org: pricing and service pages, November 12, 2026