Wisconsin LLC formation: the Badger State guide
A $130 online filing, a $25 annual report, and Wisconsin's new Chapter 183 LLC statute — what founders need to know in 2026.
Contents 11 sections
isconsin is a good example of a state that quietly modernized its LLC law without headlines. In 2023, the state's new Chapter 183 — a Revised Uniform LLC Act adoption — took effect, replacing a 1994 statute that had been patched repeatedly. For most founders, the practical effect is stronger default rules around fiduciary duties, cleaner treatment of series LLCs, and an explicit right to judicial dissolution that closely tracks the Delaware pattern.
Overview
Filing fees remain moderate: $130 online for the Articles of Organization, and a $25 annual report. For founders in Wisconsin, there is no reason to look elsewhere; for founders outside it, there is also no reason to come here.
The filing, in brief
- Filing office: Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services.
- Form: Articles of Organization (Form 502), filed online through DFI Online Services.
- State fee: $130 online; $170 paper.
- Processing: Same-day for online filings; 5 business days for paper.
- Annual report fee: $25, due by the end of the calendar quarter containing the LLC's anniversary date.
What the articles must contain
- LLC name, including "LLC," "L.L.C.," or "Limited Liability Company." Wisconsin does not accept "Limited" or "Ltd." alone.
- The name and physical Wisconsin address of the registered agent.
- Management structure (member-managed or manager-managed).
- Organizer name, signature, and contact information.
Unlike some states, Wisconsin does not require listing members, managers, or a purpose statement beyond "any lawful activity." The articles are public; operating agreements are not filed.
Registered agent
The registered agent must have a physical Wisconsin street address (not a P.O. box), available during normal business hours. The agent can be:
- A Wisconsin resident (including an LLC member or manager);
- Another registered Wisconsin entity;
- A commercial registered agent.
Out-of-state founders use commercial agents; expect $100–$175/year.
Chapter 183: what changed in 2023
The revised act brought several meaningful updates:
- Default fiduciary duties: members now owe default duties of loyalty and care, subject to modification in the operating agreement (but not elimination of the duty of loyalty).
- Explicit derivative actions: members may sue derivatively on behalf of the LLC, following a demand-or-futility framework familiar from corporate law.
- Statement of authority: an LLC can file a public statement authorizing specific persons to bind it — useful for real estate transactions.
- Cleaner dissociation rules: a member's exit no longer automatically dissolves the LLC.
- Operating agreement supremacy: the operating agreement controls most internal matters, with a short list of non-waivable provisions.
LLCs formed before 2023 were automatically migrated to Chapter 183 on January 1, 2023. Operating agreements that assumed the old statute's defaults are worth reviewing.
Annual report — by quarter
Wisconsin's annual report deadline is unusual: it is due by the end of the calendar quarter in which your LLC's anniversary falls. For example:
- Formed January 15 → report due by March 31 each year.
- Formed May 8 → report due by June 30.
- Formed November 3 → report due by December 31.
Fee: $25 for domestic LLCs, $80 for foreign. File through DFI Online Services. Miss the deadline and you face a $25 late fee; miss it for a full year and the LLC is administratively dissolved.
Taxes at the state level
- Corporate income tax: 7.9% on C-corps (one rate, not bracketed).
- Franchise tax: 7.9% on corporations doing business in Wisconsin — this is an alternative tax on the privilege of doing business, charged to C-corps that would not otherwise owe income tax (for example, on out-of-state income). LLCs taxed as partnerships are generally exempt from franchise tax.
- Pass-through LLCs: income flows to members' Wisconsin personal returns. Top rate is 7.65%. Multi-member LLCs file Form 3 (partnership) informational return.
- Pass-through entity tax election: Wisconsin allows a PTE election, paying the tax at the entity level to work around the federal $10,000 SALT cap. Election is made on Form PW-1.
Registration with the Department of Revenue
Any LLC with employees, sales tax obligations, or state tax withholding must register with the Wisconsin Department of Revenue (revenue.wi.gov) in addition to the DFI filing. The My Tax Account portal handles the combined registration.
When Wisconsin makes sense
- You live or operate in Wisconsin.
- You want an LLC under a modern, well-drafted statute (Chapter 183).
- You value the quarterly-deadline structure for bulk calendaring.
When it does not
- You are optimizing for privacy (Wyoming beats it cleanly).
- You plan to raise venture capital (Delaware remains the default).
- You have no Wisconsin connection and no tax reason to file here.
The short checklist
- Check name availability on the DFI Online Services portal.
- Appoint a Wisconsin-resident registered agent.
- File Form 502 online; pay $130.
- Register with the Wisconsin Department of Revenue for applicable taxes.
- Draft an operating agreement reviewed against Chapter 183 defaults.
- Obtain an EIN from the IRS.
- File the FinCEN BOI report within 30 days.
- Calendar the annual report deadline — the end of the quarter containing your anniversary date.
Wisconsin does not punish you for forming here, and its 2023 statute rewrite gave it a cleaner legal foundation than most of its peers. For in-state founders, it is a perfectly reasonable home.