LLC service ratings · Wisconsin
3 Best LLC Services in Wisconsin (2026)
1. Mainstay Filing: best for formation, agent and annual report on a single line
$199 a year plus the state fee, $329 due at checkout
Mainstay Filing is rated first: the Wisconsin formation, the registered agent and the annual report are bundled into $199 a year.
Mainstay files the annual report at each renewal. The state's line is $25 every year, due end of the calendar quarter containing the LLC's anniversary date, with $25 added if late, and Mainstay passes that fee on at cost.
On three-year sums Mainstay is $200 above WI Registered Agent.org; the wider coverage justifies that gap in the rating.
What you get
- LLC formation filed on your behalf
- Registered agent service for the whole year
- Annual report prepared and filed
- EIN application
Pros
- EIN application is in the package
- $199 on renewal with no extras
- Wisconsin's fee goes through at cost
- One $199 yearly line that includes the annual report
Trade-offs
- Agent renews $100 a year above WI Registered Agent.org
2. WI Registered Agent.org: best for a Wisconsin LLC that will not expand
$199 to form, $99 a year for the agent, state fee extra
WI Registered Agent.org is rated second: $199 to form, state fee on top, then $99 a year for the agent.
The plan lists an in-state street address as the registered office and scans papers served there into your account.
The annual report sits outside its published prices; you file it with Wisconsin yourself every year.
What you get
- LLC filing done for you
- A year of registered agent service at the start
Pros
- $99 per year to keep the agent
- A year of registered agent service is in the price
- $199 to form, state fee on top
Trade-offs
- The annual report is not on its price list
- EIN application billed at $99
3. Wisconsin Registered Agent.co: best for staying local in Wisconsin
$199 to form, $99 a year for the agent, state fee extra
Wisconsin Registered Agent.co is rated third: $199 to form, state fee on top, then $99 a year for the agent.
The plan lists an in-state street address as the registered office and scans papers served there into your account.
The annual report sits outside its published prices; you file it with Wisconsin yourself every year.
Nothing in the published amounts or features separates WI Registered Agent.org from Wisconsin Registered Agent.co; take either.
What you get
- LLC filing done for you
- Registered agent service for year one
Pros
- First-year registered agent service is included
- Year-two agent amount: $99
- Forms the LLC for $199 plus state fees
Trade-offs
- The annual report is not on its price list
- EIN application billed at $99
The 3 ratings summarized
| Line | Service | Rating | Service fee | Year two | Best for | Open |
|---|---|---|---|---|---|---|
| 1 | Mainstay Filing | 9.2 | $199 | $199/yr | Formation, agent and annual report on one line | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 2 | WI Registered Agent.org | 8.8 | $199 | $99/yr | A Wisconsin-only LLC counting every dollar | Visit WI Registered Agent.orgPartner link. We may earn money if you buy. |
| 3 | Wisconsin Registered Agent.co | 8.7 | $199 | $99/yr | A Wisconsin-only LLC counting every dollar | Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy. |
Wisconsin LLC service amounts for 2026: year one, renewal and three-year sum
| Service | Year one | Year two | Year three | Three-year sum | Annual report filed by them |
|---|---|---|---|---|---|
| Mainstay Filing | $199 | $199 | $199 | $597 | Yes |
| WI Registered Agent.org | $199 | $99 | $99 | $397 | No |
| Wisconsin Registered Agent.co | $199 | $99 | $99 | $397 | No |
Why Mainstay Filing is on top
Weights: 27% cost over years one to three, 27% inclusions per price, 46% shared by renewal price and terms, fit with state rules and price clarity. Inclusions per price decided Wisconsin.
Wisconsin requires a report annually at $25, with $25 added for a late one. Mainstay's amount covers that filing while WI Registered Agent.org's does not, so coverage outweighed WI Registered Agent.org's lower three-year sum.
Each criterion and its weight is listed on How we rank.
Wisconsin LLC formation: official amount and form
Filing the Articles of Organization - Limited Liability Company (Form 502) costs $130, paid to the Department of Financial Institutions (DFI). Each service here passes that amount through at cost, added to its own.
Ongoing items for a Wisconsin LLC
Plan on the annual report every year; the date is end of the calendar quarter containing the LLC's anniversary date. State amount: $25. Late: $25 extra. Every LLC must name a registered agent with an in-state street address.
Wisconsin LLC service: your questions
What are the total costs to form an LLC in Wisconsin?
$130 to the state plus $199 to the service.
What is the formation document called?
It is the Articles of Organization - Limited Liability Company (Form 502), lodged with the Department of Financial Institutions (DFI).
Is a registered agent a requirement for a Wisconsin LLC?
Yes. Wisconsin wants a registered agent on file at all times, with a physical street address in the state.
Which filings recur each year for a Wisconsin LLC?
One line item: the annual report, every year, due end of the calendar quarter containing the LLC's anniversary date, fee $25.
Is the EIN application a separate charge?
Mainstay Filing includes it in the yearly price. WI Registered Agent.org and Wisconsin Registered Agent.co charge $99 separately. At the IRS the EIN itself costs nothing.
Which LLC service holds the top rating in Wisconsin?
Mainstay Filing, as one $199 yearly line covers the Wisconsin formation, a year as registered agent and the annual report, with $199 on renewal.
Source lines
- Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (ledger date August 2026)
- Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services (ledger date August 2026)
- Wisconsin report due date (ledger date August 2026)
- Wis. Stat. § 183.0201 (ledger date August 2026)
- Wisconsin formation fee: Filing fee, official source (ledger date October 2026)
- Wisconsin registered agent statute (ledger date October 2026)
- Mainstay Filing, Wisconsin service page: amounts read November 12, 2026
- WI Registered Agent.org, pricing and service pages: amounts read November 12, 2026
- Wisconsin Registered Agent.co, pricing and service pages: amounts read November 12, 2026