How to Form an LLC
in Wisconsin

Wisconsin charges a $130 filing fee for Articles of Organization filed online through the Wisconsin Department of Financial Institutions (WDFI) at wdfi.org, or $170 by mail to the DFI office in Madison. Standard online processing is 3–5 business days; expedited processing is available for an additional $25 fee (moves to same-business-day or next-business-day). $130 is mid-tier nationally — cheaper than Massachusetts ($500), Tennessee ($300+), Texas ($300), Illinois ($150 base), or Minnesota ($155), but more than Kentucky ($40), Colorado ($50), Mississippi ($50), New Mexico ($50), Michigan ($50), or Missouri ($50 online). Eleet AI charges $279 all-inclusive standard or $304 expedited — covers the $130 state fee, Articles of Organization preparation, filing through WDFI, and first-year Wisconsin registered agent service. DIY realistic totals land $150–$450+ in year one after adding commercial registered agent service ($100–$299/yr), EIN assistance if outsourced, and optional expedite. Wisconsin's ongoing compliance is modest: $25/year Annual Report filed online through WDFI, due by the end of the calendar quarter of the LLC's formation anniversary month (not December 31, not the exact anniversary date — the end of the quarter containing the anniversary). A January-formed LLC has Annual Reports due March 31; a June-formed LLC has Reports due September 30.

Wisconsin is one of the few US states where LLC and corporation filings go through the Department of Financial Institutions (WDFI) rather than the Secretary of State. The Wisconsin Secretary of State retains responsibilities for notaries public, commissioning, certifications of state documents, election administration, and custody of the state seal — but business entity formation, annual reports, name searches, and entity status were consolidated under WDFI decades ago. The WDFI One Stop Business Portal at wdfi.org handles: Articles of Organization filings, Annual Reports, registered agent changes, name reservations, entity name searches via the Corporate Registration Information System (CRIS), certificates of status, and entity reinstatements. National formation services frequently intake Wisconsin filings under "Secretary of State" labels — this is wrong and can confuse DIY filers who then try to mail documents to the SOS office and wait weeks for a rejection. File through WDFI. Eleet AI's intake form correctly identifies WDFI as the filing authority and files electronically through the One Stop Business Portal.

Yes — every Wisconsin LLC must continuously maintain a registered agent with a physical Wisconsin street address under Wis. Stat. § 183.0105 (new Act effective April 15, 2023). No P.O. boxes, no commercial mail-receiving addresses without a proper CMRA designation, no out-of-state addresses. The agent receives service of process, WDFI correspondence, Department of Revenue notices, and legal filings on behalf of the LLC during normal business hours. Eligibility: (a) a Wisconsin-resident individual age 18+ with a Wisconsin street address, OR (b) a domestic or foreign business entity authorized to transact business in Wisconsin with a Wisconsin street address. The registered agent's name and address appear on public filings (Articles of Organization, Annual Report) and are searchable via the WDFI Corporate Registration Information System. You can serve as your own registered agent if you're a Wisconsin resident available during business hours — but your home address becomes public record on the WDFI search, indexed by process servers, collection agencies, legal solicitors, and data brokers. It also means you must be physically present at that address during business hours to accept service — no vacations, no business travel without a backup. Most Wisconsin founders use a commercial registered agent for privacy and reliability. Eleet AI's Wisconsin registered agent service is included free in year one with formation, then $100/yr after.

Online filings through WDFI at wdfi.org typically process in 3–5 business days during standard processing, which runs Monday through Friday during DFI business hours. The $25 expedited tier moves processing to same-business-day or next-business-day — useful for founders with deadline-driven formations (lease signing, investor closing, contract countersignature, bank appointment). Paper filings mailed to the DFI office in Madison cost $170 and take 5–10 business days — use online unless you have a specific reason not to. Eleet AI files online through the WDFI One Stop Business Portal by default. For founders with tight timelines we surface the $25 expedite option explicitly at checkout ($304 all-in expedited vs $279 all-in standard). After Articles of Organization approval, budget another 1–2 weeks for EIN issuance (instant online through IRS.gov during IRS business hours), 1–2 weeks for Wisconsin Tax Account registration via the WI Department of Revenue MyTaxAccount portal at revenue.wi.gov, and 2–4 weeks for local business license if applicable (Milwaukee, Madison, Green Bay, Appleton, Kenosha, and other cities each administer separately). Some WDFI filings have experienced longer queues during peak filing weeks (January, year-end). Plan accordingly.

Wisconsin has a mid-to-upper tier state tax burden in the Midwest — honest disclosure. Key taxes today: (1) State personal income tax — 4-bracket PROGRESSIVE under Wis. Stat. Chapter 71, 2025 brackets: 3.50% (up to $14,680 single / $19,580 married), 4.40% (up to $29,370 / $39,150), 5.30% (up to $323,290 / $431,060), and 7.65% above. Pass-through LLC income flows to members via Schedule 3K-1 (partnership) or Schedule 5K-1 (tax-option corporation / S-Corp). $150,000 pass-through income to a single Wisconsin-resident member in 2025 triggers roughly $7,100 in WI state tax at the effective blended rate. Compare to Indiana 3.00% flat, Michigan 4.25%, Illinois 4.95% flat, Iowa ~5.7% top, Missouri 4.70%, Minnesota 5.35%–9.85% progressive — Wisconsin's 7.65% top bracket is higher than most Midwest peers but well below California (13.3%), Hawaii (11%), New York (10.9%), Minnesota (9.85%). (2) Corporate franchise tax — 7.9% on net income under Wis. Stat. Chapter 71 Subchapter IV, applies ONLY to LLCs that affirmatively elect C-Corp treatment via federal Form 8832. Partnership-taxed and disregarded-entity LLCs don't owe WI entity-level income tax. (3) Pass-Through Entity (PTE) tax ELECTION — Wisconsin enacted one of the earliest state PTE taxes under 2017 Wis. Act 368, effective 2018. Partnership-taxed LLCs and tax-option corporations (S-Corps) can elect to pay WI tax at the entity level at 7.9% (the C-Corp rate). Federal SALT-cap workaround under TCJA 2017 — the entity-level tax is deductible on the federal return, bypassing the $10,000 state-and-local-tax cap for individual members. Election is on Form 3-ET (partnerships) or Form 5S-ET (tax-option corporations). Wisconsin's PTE has been battle-tested longer than most states' — 7+ years of administrative guidance. (4) Sales and Use Tax — 5.0% state under Wis. Stat. Chapter 77, PLUS 0.5% county-option sales tax in 68 of 72 counties (combined 5.5% rate statewide in most areas), PLUS Milwaukee County's additional 0.9% county layer and Milwaukee City's 2.0% city sales tax (effective January 1, 2024 under 2023 Wis. Act 12) — City of Milwaukee combined rate 7.9%. Most WI cities combine to 5.5%. Register through WI Department of Revenue MyTaxAccount portal at revenue.wi.gov. Economic nexus at $100k+ annual WI sales or 200 WI transactions under Wis. Stat. § 77.51(13gm). (5) Withholding tax — required for LLCs with Wisconsin employees via Form WT-4 + quarterly withholding payments. (6) Wisconsin Unemployment Insurance through dwd.wisconsin.gov — required if hiring WI employees. (7) Industry-specific taxes: motor fuel, alcohol, tobacco, premier resort area (Lake Geneva, Bayfield, etc. summer-resort 0.5% local rate), real estate transfer fee. The PTE election is the key tax-planning lever — every multi-member WI LLC with high-income members should evaluate PTE election annually.

Every Wisconsin LLC must file an Annual Report with WDFI each year for $25, filed online through the WDFI One Stop Business Portal at wdfi.org. The deadline is NOT calendar-year-end like Minnesota (December 31) and NOT the exact formation anniversary like some states — it is the END OF THE CALENDAR QUARTER of the LLC's formation anniversary month. A Wisconsin LLC formed January 15 has Annual Reports due March 31 of each year. A WI LLC formed April 30 has Reports due June 30. A WI LLC formed August 1 has Reports due September 30. A WI LLC formed December 20 has Reports due March 31 of the following year. The four quarterly deadlines are March 31, June 30, September 30, and December 31. This quarterly-anniversary structure is genuinely unusual — most US states use either calendar-year-end or exact-anniversary-month deadlines. Every Wisconsin LLC operator needs their specific quarterly deadline calendared from day one. The Annual Report confirms: (1) LLC name, (2) registered agent name and WI street address, (3) principal office address, and (4) managers (for manager-managed LLCs) or members (some filings include members). Missing the deadline triggers delinquency status with a 60-day grace period; beyond that, administrative dissolution by WDFI. Reinstatement fees escalate and the LLC name becomes vulnerable to another filer. Eleet AI's Wisconsin registered agent clients receive automated reminders at 60-day, 30-day, and 7-day marks before each quarterly deadline, with one-click filing via our $29 managed Annual Report add-on.

Yes — as of April 15, 2023. Wisconsin fundamentally modernized its LLC law under 2021 Wisconsin Act 258, replacing the decades-old Chapter 183 framework with a Revised Uniform Limited Liability Company Law (Wis. RULLCA) that includes explicit series LLC authorization at Wis. Stat. § 183.0504. Wisconsin LLCs can now establish "protected series" with statutory liability segregation — each series can own its own assets, have its own members, have its own managers, and be liable only for its own debts. Series protection attaches to the parent LLC and flows through properly formed and properly maintained series. Before April 15, 2023, Wisconsin did NOT permit series LLCs — existing WI LLCs that want series protection must amend their Articles of Organization under the new Act. Wisconsin joined Delaware (Del. Code Ann. tit. 6, § 18-215 — the original series-LLC statute), Illinois (805 ILCS 180/37-40), Texas (Tex. Bus. Orgs. Code § 101.601), Iowa (2018), Nevada, Oklahoma, Wyoming, Virginia, Alabama, and about a dozen other series-LLC states. Wisconsin series LLCs are a material advance for multi-property real-estate investors (per-property liability isolation without forming 5+ separate LLCs, 5+ EINs, 5+ Annual Reports) and multi-line operators (separate product lines or service brands under one parent). Proper series formation requires (a) Articles of Organization expressly authorizing series, (b) an operating agreement with series-specific provisions, (c) separate recordkeeping and accounting for each series, (d) separate bank accounts or segregated accounts per series, and (e) consistent treatment of each series as a separate unit in contracts and litigation. Eleet AI's Wisconsin formation packet can include series LLC language in the Articles as an optional add-on; consult a WI business attorney on whether your use case is a genuine fit.

Wisconsin enacted its Revised Uniform Limited Liability Company Law under 2021 Wisconsin Act 258, replacing the previous Chapter 183 framework. Effective April 15, 2023 for new LLCs. Existing WI LLCs had an opt-in period through December 31, 2022; otherwise the new Act applied automatically to all Wisconsin LLCs on April 15, 2023. This is a MAJOR modernization — WI joined ~20 other RULLCA states (Alabama, California, DC, Florida, Illinois, Iowa, Minnesota, Nebraska, Nevada, New Jersey, North Dakota, Pennsylvania, South Dakota, Utah, Vermont, Washington, and others) on a uniform-law-based LLC statute. Key changes under the new Act: (1) Series LLC authorization under § 183.0504 — protected series with statutory liability segregation (previously not permitted in WI). (2) Charging-order exclusive remedy under § 183.0503 — a member's LLC interest can only be reached by creditors through a charging order (not foreclosure, not forced sale), strengthening the liability shield. (3) Modernized fiduciary duty framework — clearer default duties of care and loyalty with broader ability to modify in the operating agreement. (4) Expanded freedom of contract — members have greater latitude to customize the operating agreement and override default rules. (5) Streamlined dissolution procedures — clearer triggers and winding-up process. (6) Updated filing requirements — modernized WDFI filing forms and online process. (7) Clearer derivative-action rules for member-derivative lawsuits. Wisconsin LLCs formed before April 15, 2023 are automatically governed by the new Act unless they affirmatively opted out during the transition period (very few did). Practical implication: any Wisconsin LLC operating agreement drafted before 2023 should be reviewed for new-Act consistency, and founders forming new LLCs post-April-2023 should draft operating agreements that take advantage of the new Act's expanded freedom of contract and series-LLC authorization.

Yes. Wisconsin welcomes non-resident LLC formations, and WDFI at wdfi.org processes filings from all 50 states and international founders. The only Wisconsin-resident requirement is the registered agent — commercial agents (like Eleet AI) satisfy this requirement. However, consider the foreign-qualification trap: if you actually operate your business mainly in another state (employees there, storefront there, services delivered from there), that state will likely require you to register your Wisconsin LLC as a "foreign LLC" in the operating state, adding another filing fee, another registered agent, and another annual report. Wisconsin's strongest non-resident use cases are: (1) genuine Wisconsin economic substance — manufacturing (Milwaukee metal fabrication, Fox Cities paper, Kenosha/Racine industrial, Oshkosh specialty vehicles, Mercury Marine Fond du Lac outboards, Kohler plumbing and generators, Snap-on Kenosha tools, Sub-Zero/Wolf Madison appliances, Harley-Davidson Milwaukee motorcycles, Rockwell Automation Milwaukee industrial systems, Johnson Controls Glendale HVAC + building controls); (2) Epic Systems implementation consulting and healthcare-IT services (Verona / Madison ecosystem); (3) dairy supplier-LLCs (Schreiber Foods Green Bay, Sargento Plymouth, BelGioioso Green Bay, Foremost Farms Baraboo, Saputo WI facilities, Associated Milk Producers WI operations); (4) genuine Wisconsin residents; (5) series-LLC operators who want the new post-April-2023 § 183.0504 statutory framework in a right-to-work, low-sales-tax, moderate-progressive-income-tax state. If you just want an anonymous pure holding LLC with no Wisconsin operations and privacy is the primary goal, Wyoming ($100 + $60/yr anonymous member privacy under W.S. § 17-29-201) or New Mexico ($50 + no annual report + anonymous) is a better choice because the Wisconsin Annual Report requires principal office and registered agent disclosure, and the 7.65% top income tax bracket is genuinely real for pure-holding tax planning. Wisconsin's true edge shows up for founders with actual WI business activity, series-LLC use cases under the new Act, or alignment with the manufacturing + dairy + healthcare-IT supplier ecosystems.

It depends on the municipality and business activity. Wisconsin does NOT have a state-level general business license, but most cities and some counties require businesses operating within their jurisdiction to obtain a local business license, zoning certificate, or industry-specific permit. Key metro city examples: (1) Milwaukee (Milwaukee County) — City of Milwaukee Department of Neighborhood Services licensing + Department of City Development zoning; regulated-industry licenses for food service, liquor, tobacco, amusement, secondhand dealer, pawnbroker, rental housing, STR registration, tow truck, and ~60 other categories. Milwaukee combined sales tax rate jumped to 7.9% on January 1, 2024 after the city added a 2.0% city sales tax under 2023 Wisconsin Act 12. (2) Madison (Dane County) — City of Madison Clerk's Office licensing; strong zoning enforcement through Planning Division; UW-Madison campus adjacency drives specific student-housing and food-service licensing needs. Epic Systems and Sub-Zero/Wolf ecosystem in Fitchburg and Verona suburbs. (3) Green Bay (Brown County) — City of Green Bay Clerk's Office licensing; Associated Banc-Corp financial services + Schreiber Foods dairy + Packers-related tourism licensing. (4) Kenosha (Kenosha County) — City of Kenosha Licensing Division; Snap-on tools + Uline ecommerce distribution anchor; Lake Michigan industrial belt. (5) Racine (Racine County) — City of Racine Clerk; S.C. Johnson family-owned anchor; Mt Pleasant / Foxconn / Microsoft data-center ecosystem. (6) Appleton / Oshkosh / Neenah / Menasha (Fox Cities) — each city administers separately; paper industry + Oshkosh Corp military-vehicle supplier ecosystem; Mercury Marine in Fond du Lac. (7) Eau Claire (Eau Claire County) — western WI regional hub; healthcare and professional services anchor. (8) La Crosse (La Crosse County) — southwestern WI regional hub on Mississippi River. (9) Wausau (Marathon County) — central WI regional hub; insurance and wealth-management anchor. Industry-specific licensing: professional services (medicine, nursing, law, engineering, architecture, dentistry, pharmacy, accounting, real estate, cosmetology, contractor, plumbing, HVAC, electrician) require separate Wisconsin Department of Safety and Professional Services (DSPS) licensing at dsps.wi.gov. Alcohol through Wisconsin Department of Revenue Alcohol and Tobacco Enforcement. Cannabis (CBD / hemp only — Wisconsin has NOT legalized adult-use or medical marijuana as of 2026, one of only a handful of holdout states). The WI Department of Revenue administers Sales and Use Tax Permits through MyTaxAccount — required for any LLC collecting Wisconsin sales tax. Plan industry licensing separately from LLC formation — the $130 WDFI fee does NOT include any local or industry license.

After WDFI approves your Articles of Organization through the One Stop Business Portal: (1) Apply for a federal EIN at IRS.gov — free, takes 5 minutes online during IRS business hours. You need the EIN before opening a business bank account, registering for Wisconsin tax accounts, hiring employees, or filing federal tax returns. (2) Register for Wisconsin tax accounts via the WI Department of Revenue MyTaxAccount portal at revenue.wi.gov — creates a unified WI tax account for income tax withholding, sales tax, use tax, and employer withholding. If you sell taxable goods or services, apply for a Seller's Permit; if you hire Wisconsin employees, register for withholding tax; if you want to elect Pass-Through Entity (PTE) tax, note that on your first annual return via Form 3-ET or 5S-ET. (3) Register with Wisconsin Unemployment Insurance at dwd.wisconsin.gov — required if hiring WI employees; creates an employer account and funds unemployment insurance premiums. (4) Register for Workers' Compensation insurance — Wisconsin requires workers' comp coverage for nearly all LLCs with 3+ employees under Wis. Stat. Chapter 102; procure through Wisconsin Compensation Rating Bureau (WCRB) member carriers, Wisconsin Worker's Compensation Uninsured Employers Fund option, or private carriers. (5) Obtain local business license / zoning certificate / industry permit from the city where your LLC operates — varies by city (see local business license FAQ above). Milwaukee DNS licensing, Madison Clerk, Green Bay Clerk, Kenosha, Racine, Appleton, Oshkosh, Eau Claire, La Crosse, Wausau each have separate processes. (6) Obtain industry-specific licensing through Wisconsin Department of Safety and Professional Services (DSPS) at dsps.wi.gov — professional services (medicine, nursing, law, engineering, architecture, dentistry, pharmacy, accounting, real estate, cosmetology, contractor, plumbing, HVAC, electrician). Alcohol through WI DOR Alcohol and Tobacco Enforcement. (7) Open a business bank account using your EIN and the Wisconsin Articles of Organization. Wisconsin-based bank options: Associated Bank (Green Bay HQ, largest WI-based bank, strong small-business coverage), Johnson Financial Group (Racine, private), BMO Harris (Chicago IL HQ with significant WI presence), Old National Bank (Evansville IN HQ with WI footprint after Bremer merger), First Business Bank (Madison HQ), Park Bank (Madison). National options: U.S. Bank, Chase, Wells Fargo, Bank of America, plus neobanks (Mercury, Relay, Bluevine) for e-commerce LLCs. (8) Draft an operating agreement defining member rights, profit distribution, decision-making authority, dispute resolution, and dissolution triggers (not legally required in Wisconsin but strongly recommended under the new Wis. RULLCA — Chapter 183 provides default rules absent an operating agreement, and the new Act expanded freedom of contract so custom operating agreements are more useful than ever). (9) Purchase general liability insurance. For Epic Systems implementation consulting supplier LLCs, Harley-Davidson / Kohler / Johnson Controls supplier LLCs, dairy-equipment supplier LLCs, or Oshkosh Corp / Mercury Marine supplier LLCs, prime-contractor supplier-quality agreements typically require $2M+ general liability, product liability, and professional liability coverage; regulated categories need ISO certifications. (10) Calendar your quarterly Annual Report deadline — due by end of the calendar quarter containing your formation anniversary month. $25/year via WDFI. Missing triggers a 60-day grace period, then administrative dissolution. (11) If you're forming under the new Wis. RULLCA and want to use the series-LLC provisions under § 183.0504, ensure your Articles of Organization and operating agreement are drafted to authorize series — this is a one-time decision best made at formation. Eleet AI's welcome packet walks every Wisconsin LLC customer through all 11 of these post-formation steps with links, deadlines, and city-specific guidance.