Stack of documents with a paperweight on a leather desk pad, How to Start an LLC in Wisconsin

How to Start an LLC in Wisconsin

Last verified: November 10, 2026

To apply for an LLC in Wisconsin you file Articles of Organization (Form 502) with the Department of Financial Institutions (DFI), not the Secretary of State, and the cheapest route is the online filing at $130. Our position: file it yourself through DFI unless you want a registered agent to keep your address off the filing or you live outside Wisconsin without a street address to list, a trade-off we lay out in the section on filing yourself or using a service. This page is the formation walk-through. For every registration a new Wisconsin business needs, see how to register a business in Wisconsin, and for the fees beyond formation see Wisconsin LLC cost and fees.

What You Need Before You File

  • A compliant name: under Wis. Stat. 183.0112 it must contain "limited liability company" or "limited company" or the abbreviation LLC or LC
  • A registered agent: a Wisconsin street address (not solely a P.O. box, mailbox service or answering service) and an email address for the agent
  • Addresses and an organizer: the articles also list the company's principal office (street and mailing addresses) and the name and address of each organizer
  • The filing fee: $130 filed online, $170 on paper
  • An EIN: free from the IRS
  • An operating agreement: not filed with DFI, but worth having before you open a bank account
  • The filing portal: the DFI Business Entity File Online page, or the Wisconsin One Stop Business Portal if you also want tax registration in the same application

Step-by-Step: How to Apply for an LLC in Wisconsin

Step 1: Choose and Check Your LLC Name

Wisconsin's permitted-names rule is Wis. Stat. 183.0112. The name needs "limited liability company," "limited company," "LLC" or "LC" (capitalization and punctuation can vary; "Ltd." and "Co." are allowed abbreviations). It must also be distinguishable on DFI's records from existing entities, limited liability partnerships, entities registered to do business in Wisconsin, and names others have reserved or registered with DFI.

Search first in the DFI business entity search, but treat a clear result as a hint only: DFI's FAQ says no name is available until a filing is accepted, and it gives a name-availability line at 608-261-7577 (DFI business entity FAQ, archived copy of October 17, 2026). If you are not ready to file, a reservation costs $15 and holds the name for 120 days (DFI Form 1; the term is set in Wis. Stat. 183.0113). For the full name workflow, see how to check and reserve a Wisconsin business name.

Step 2: Appoint a Registered Agent

Under Wis. Stat. 183.0115 every Wisconsin LLC designates and maintains a registered agent and registered office. The registered office must be an actual physical location with a street address, and the agent must have an email address. A natural person can serve only if he or she lives in Wisconsin and the registered office is also the person's business office; an entity can serve if its business office is the registered office. DFI's Form 502 adds that the LLC may not name itself as its own agent.

The practical question is whose address you are willing to put in a public filing: yours, a colleague's or a commercial agent's. Our Wisconsin registered agent guide covers how to choose. Changing the agent or office later costs $10 online or $25 on paper (DFI corporation fees, archived copy of October 19, 2026).

Step 3: File the Articles of Organization

The formation document is Form 502, Articles of Organization, required by Wis. Stat. 183.0201 (DFI Form 502). The filing fee is $130 online and $170 on paper. The statute sets $130; the paper amount is the higher figure on the DFI fee schedule, which DFI may set under Wis. Stat. 183.0122(2)(c). Student entrepreneurs have one exception: the DFI One Stop page says to file Form 502 on paper to receive the fee waiver, because online filing pays the $130 (DFI One Stop Business page, archived copy of September 27, 2026). Confirm the waiver conditions with DFI first.

What the statute promises about timing is narrower than most guides imply. DFI records a filing as filed on the date it is delivered, and the LLC exists once the articles become effective: on the date DFI receives them, at the time you specify or at close of business, or on a delayed date you choose up to 90 days out (Wis. Stat. 183.0207). The 5-business-day figure in Wis. Stat. 183.0210(3) is the deadline for DFI to return a record it refuses, not a promise of approval time. If you need a faster answer, DFI sells these options:

Service LevelCostTurnaroundSource
Expedited filing$100 extraActed on by close of business the next business dayDFI FAQ
Counter service, 4 hours$250Within 4 hoursDFI general information
Counter service, 1 hour$500Within 1 hourDFI general information

Pay for speed only when a lender, landlord or contract is waiting on the filed articles. Otherwise the standard online filing costs the least.

Step 4: Draft an Operating Agreement

Chapter 183 does not have you file an operating agreement with DFI. It does say that the operating agreement governs the members' relations and the company's affairs, and that where the agreement is silent the statute fills the gap (Wis. Stat. 183.0105). That is the real reason to write one: profit splits, voting, buyouts and exits default to the statute's answers, which may not be the ones you and your co-owners would have chosen. Banks may also ask to see one when you open an account, so check with yours. Our Wisconsin LLC operating agreement guide covers what to put in it. For multiple owners or investors, have a Wisconsin attorney review it.

Step 5: Get an EIN From the IRS

The IRS issues EINs free through its online EIN tool, and says you never have to pay a fee for one. Any site that charges you for it is a reseller. You will need the EIN to open a business bank account and, if you hire, for payroll. See our Wisconsin EIN guide for the details.

Step 6: Register for State Taxes and Check for Other Licenses

If the LLC will make taxable sales, confirm with the Department of Revenue whether you need a seller's permit. Its registration fee is $20 for the initial registration, which covers two years, and $10 to renew (DOR business tax registration, archived copy of October 9, 2026). Apply through the DOR Business Tax Registration portal.

If you have not filed with DFI yet, the One Stop Business Portal combines three registrations in one application: entity registration with DFI, tax registration with DOR and unemployment insurance with the Department of Workforce Development (One Stop Business: is it right for me?, archived copy of October 11, 2026). It handles only business corporations, statutory close corporations and LLCs, and it is not for entities already filed with DFI, which register with DOR directly (DOR: starting a business, archived copy of September 9, 2026).

Is there one general Wisconsin business license on top of that? We looked for one in DFI's general information and FAQ pages, the DOR starting-a-business page, the One Stop page, the DSPS credentialing FAQ and the Wisconsin SBDC business FAQ (archived copies from July to October 2026) and found none. What those pages describe instead are DFI entity filings, DOR tax registration and profession-specific credentials from DSPS. Confirm with DFI or DOR before you rely on that, and check your own city, village, town or county for local licenses and zoning. Our guide to the Wisconsin business license question goes through the options by activity.

Step 7: Understand Your Ongoing Tax Obligations

By default the IRS classifies an LLC with two or more members as a partnership and a one-member LLC as an entity disregarded from its owner, and either can elect corporate treatment on Form 8832 (IRS: LLC filing as a corporation or partnership). Under the default, the income is reported on the owners' own returns, where Wisconsin's 2026 individual rates run from 3.5% to 7.65%; a single filer reaches 7.65% above $332,720 (DOR 2026 Form 1-ES instructions, archived copy of August 17, 2026).

If the LLC elects corporate treatment, Wisconsin's franchise and income tax rate is 7.9%, with an economic development surcharge for corporations whose gross receipts from all activities are $4 million or more (DOR corporation franchise and income tax FAQ, archived copy of October 11, 2026). Whether an election pays off depends on your income and your owners; that is a CPA's call, not a formation-checklist item.

Step 8: File Your Annual Report Every Year

A domestic LLC files a Limited Liability Company Annual Report (Form 5) each year after the calendar year in which its articles took effect, during the calendar quarter of its anniversary date (Wis. Stat. 183.0212(3)(a)). The fee is $25 online and $40 on paper. Your first report is therefore due in the year after you form, so the first-year state cost of an online filing is the $130, not $155. The due dates by quarter of formation:

  • Organized January 1 to March 31: report due March 31
  • Organized April 1 to June 30: report due June 30
  • Organized July 1 to September 30: report due September 30
  • Organized October 1 to December 31: report due December 31

A foreign LLC registered to do business in Wisconsin pays $65 online or $80 on paper and files in the first calendar quarter, so its date is March 31 (Wis. Stat. 183.0212(3)(b); foreign LLC registration in Wisconsin). Fees and forms here come from the DFI corporation fees page (archived copy of October 19, 2026) and the DFI file online page (October 24, 2026).

A missed report carries no late fee, according to DFI's administrative dissolution page (archived copy of October 16, 2026), but the statute lets DFI start administrative dissolution once the report is more than one year overdue (Wis. Stat. 183.0708(1)(b)). DFI's FAQ says a delinquent entity cures the status by filing the current report and paying back annual report fees. If dissolution has already happened, DFI emails reinstatement forms on request; ask DFI for the current reinstatement fee, because the pages we could read state none. Our Wisconsin annual report guide covers the filing itself.

Do You Need a Wisconsin Trade Name?

Your LLC does business under the name in its articles. If you want to operate under a different name, DFI's trademark program accepts voluntary registration of a trade name for $15, effective for 10 years, with a $15 renewal that opens six months before expiration; filings are accepted online or in person only (DFI trademarks general information, archived copy of August 19, 2026). The DFI page says registration is not required, and a "mark" under Wis. Stat. ch. 132 includes a trade name. One practical catch: the name-availability search can count names that others have reserved, so a trade name search is not the same as an LLC name search. Our Wisconsin trade name guide covers the details, including what applies to sole proprietors.

File It Yourself or Use a Service?

Filing yourself costs the state fee and your time: $130 online, plus you supply the registered agent's Wisconsin street address and apply for your own EIN. A formation service charges on top of that. Northwest Registered Agent's LLC formation is listed at $39 plus the state filing fee (Northwest Registered Agent pricing, checked November 5, 2026). BetterLegal's is $299 plus the state filing fee, and its page lists the EIN, an operating agreement and a banking resolution among what the price covers (BetterLegal pricing, checked November 5, 2026). BetterLegal's registered agent service is sold separately at $12.50 a month or $120 a year (BetterLegal pricing, checked November 5, 2026).

Our reasoning, not a ranking: do it yourself if you live in Wisconsin, have a street address you are comfortable listing as the registered office and your owners already agree on how the company will run. A service starts to earn its fee when you live outside Wisconsin and have no Wisconsin street address for the agent, or when you do not want your own address on the articles. Either way the DFI fee is the same. Compare filing yourself against the two services we cover.

Common Mistakes to Avoid

  • Filing with the wrong agency: Wisconsin entity filings go to DFI, so documents or payments sent elsewhere lose time.
  • Listing a mailbox as the registered office: the statute rules out a registered office that is solely a P.O. box, mailbox service or answering service.
  • Skipping the operating agreement: without one, the statute decides how members split profits and make decisions.
  • Losing track of the annual report date: it follows your formation anniversary quarter, not the calendar year, so set a reminder the day DFI files your articles.
  • Hunting for one general state license: we found none in the sources listed in Step 6, so what you need depends on what you sell, your tax registrations and your local rules.

What to Expect After Filing

Once the articles take effect, the LLC exists as a legal entity (Wis. Stat. 183.0201(4)). From there you apply for the EIN, register for taxes and open the bank account in whatever order your bank and agencies require. Banks, DOR and local offices set their own timelines, so confirm those with each of them instead of assuming a schedule.

Important: This article is for general informational purposes only and is not legal or tax advice. Wisconsin filing fees, forms and requirements can change. Talk to a licensed Wisconsin attorney or a CPA before making formation, tax election or compliance decisions.

Quick Reference: Wisconsin LLC Formation Costs

ItemCostSource
Articles of Organization (Form 502)$130 online, $170 paperDFI corporation fees
Name reservation (optional, 120 days)$15DFI Form 1
Annual report (Form 5), from the year after formation$25 online, $40 paperDFI corporation fees
Registered agent change$10 online, $25 paperDFI corporation fees
Trade name registration (optional)$15DFI trademarks
Seller's permit, initial (2 years)$20DOR business tax registration
Expedited processing (optional)$100 to $500 extraDFI general information

For a series LLC, a professional LLC or a foreign LLC registering in Wisconsin, confirm the figure on the DFI business entities page before you file. The full cost picture is in Wisconsin LLC cost and fees.

Sources

Keep exploring: related Wisconsin guides