How to Start an LLC in Wisconsin
How to Start an LLC in Wisconsin
Forming a Wisconsin LLC means filing with the state, not a courthouse or a random online generator that overcharges you. In Wisconsin, business entities are filed with the Department of Financial Institutions (DFI), Division of Corporate and Consumer Services, not the Secretary of State's office like in most other states. That distinction trips people up during a Google search, so get it straight before you start clicking around. This guide walks through the exact steps, fees, and timelines to form an LLC in Wisconsin, using the current figures published by DFI and the Wisconsin Department of Revenue.
What You'll Need Before You File
- A distinguishable business name that includes "limited liability company," "limited company," or an abbreviation like LLC or LC
- A registered agent with a physical Wisconsin street address (no P.O. boxes) and an email address
- $130 for the Articles of Organization filing fee
- An EIN (Employer Identification Number) from the IRS, free of charge
- An operating agreement (not filed with the state, but you should have one)
- Access to the DFI Business Entity File Online portal or the Wisconsin One Stop Business Portal for combined state registration
Step-by-Step: How to Start an LLC in Wisconsin
Step 1: Choose and Check Your LLC Name
Your Wisconsin LLC formation starts with a compliant name. Under sec. 183.0112, Wis. Stats., the name must contain "limited liability company" or "limited company," or the abbreviation "LLC" or "LC" (variations in capitalization or punctuation are fine). You can abbreviate "Limited" as "Ltd." and "company" as "Co." The name also has to be distinguishable on DFI's records from every other registered, reserved, or trademarked name in the state.
Run a preliminary search in the DFI business entity search database before you fall in love with a name. That search is not a guarantee: availability is only final once DFI actually examines and files your Articles of Organization. If you're not ready to file yet but want to lock a name down, you can reserve it for $15, which holds it for 120 days.
Step 2: Appoint a Registered Agent
Every Wisconsin LLC must continuously maintain a registered agent with a registered office inside the state. That office has to be a real physical street address, not just a P.O. box, a mailbox rental, or an answering service, and it has to match the agent's actual business address. DFI also requires an email address for the registered agent on both the formation document and every annual report, since that's where official notices and annual report reminders get sent.
Your LLC cannot act as its own registered agent. You can serve as your own agent personally (using your Wisconsin address), appoint a colleague, or hire a commercial registered agent service, which typically runs $100 to $300 a year depending on the provider. If you ever need to change your agent or office, that's a $10 filing online or $25 on paper.
Step 3: File the Articles of Organization
This is the actual formation step. You'll file Form 502, Articles of Organization, Limited Liability Company, under sec. 183.0201, Wis. Stats. The filing fee is $130. You can file online through DFI's Business Entity File Online system, or by mail (paper filings are sent to a Milwaukee lockbox).
Processing times matter here. Online filings are, in most cases, accepted upon receipt with immediate confirmation. DFI's statutory outer limit for processing new business filings is 5 business days, but paper filings by mail will take longer just from transit time. If you're in a hurry, DFI offers paid expedited options:
| Service Level | Cost | Turnaround |
|---|---|---|
| Standard expedited (online or paper) | +$100 | Acted on by close of business the next business day |
| Counter service, Madison (4-hour) | $250 | Same day, within 4 hours |
| Counter service, Madison (1-hour) | $500 | Same day, within 1 hour |
Unless you have a closing deadline or a lender waiting on formation documents, the standard filing is fine for most new Wisconsin LLCs.
Step 4: Draft an Operating Agreement
Wisconsin doesn't require you to file an operating agreement with the state, and it isn't legally mandatory to have one at all. That said, skipping it is one of the more common mistakes new LLC owners make. Without an operating agreement, your LLC defaults to Wisconsin's statutory rules for member management, profit splits, and dissolution, which may not match what you and your co-owners actually intended. Even single-member LLCs benefit from one: banks often ask for it to open a business account, and it reinforces the separation between you and the business that protects your liability shield.
Step 5: Get an EIN From the IRS
An Employer Identification Number is free directly from the IRS website and takes about 10 minutes online if you have a Social Security Number or ITIN. You'll need an EIN to open a business bank account, hire employees, and file federal taxes, even if your LLC has no employees. Never pay a third-party site to get you an EIN, it's a free federal service.
Step 6: Register for State Taxes and Any Required Permits
Wisconsin doesn't issue one general statewide business license. What's effectively universal instead is tax registration through the Wisconsin Department of Revenue. If your LLC sells taxable goods or services, you need a Seller's Permit, which costs $20 for the initial two-year period and $10 to renew every two years after that. You'll register through the Department of Revenue's Business Tax Registration system at tap.revenue.wi.gov/BTR.
The easiest path is the Wisconsin One Stop Business Portal, which registers your new business with DFI, the Department of Revenue, and the Department of Workforce Development in a single pass. Beyond state-level tax registration, check with your city or county: many Wisconsin municipalities layer on their own local licensing and zoning requirements, and regulated professions (contractors, cosmetologists, health care providers, and similar) are licensed separately through the Department of Safety and Professional Services.
Step 7: Understand Your Ongoing Tax Obligations
Wisconsin doesn't impose a separate LLC franchise or privilege tax, which is good news relative to some states. By default, a multi-member LLC is taxed as a partnership and a single-member LLC as a disregarded entity, so profits pass through to the owners and are taxed at Wisconsin's graduated individual income tax rates, currently 3.50% to 7.65% depending on income bracket. If your LLC elects to be taxed as a corporation, it instead pays Wisconsin's flat 7.9% corporate franchise or income tax, plus an economic development surcharge if the entity's gross receipts from all activities reach $4 million or more.
The only recurring charge from the state to your LLC itself, separate from income tax on the owners, is the annual report fee covered in the next step.
Step 8: File Your Annual Report Every Year
Wisconsin LLCs must file a Limited Liability Company Annual Report (Form 5) every year after the year the LLC was organized. The fee is $25 online, or $40 by mail (paper filings carry a $15 surcharge). Foreign LLCs registered to do business in Wisconsin pay $80 and are due March 31 regardless of formation date.
For domestic LLCs, the due date depends on which calendar quarter contains your organization anniversary:
- 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
Mark this on a calendar the day your LLC is approved. Missing an annual report is one of the most preventable ways owners lose good standing with DFI, and it's a $25-a-year problem that becomes a much bigger headache if it lapses long enough to trigger administrative dissolution.
Do You Need a Wisconsin Trade Name (DBA)?
If your LLC will operate under a name different from the one on your Articles of Organization, Wisconsin's equivalent of a DBA is a trade name registration filed with DFI's Trademarks and Trade Names Bureau under Wis. Stat. ch. 132. It costs $15 per trade name, filed online or in person (DFI stopped accepting mailed trademark filings back in March 2020). Registration is optional and isn't required to use a trade name, but it puts your claim on the public record. Renewal is also $15 and can be filed in the six months before expiration.
Common Mistakes to Avoid
- Confusing DFI with the Secretary of State. Wisconsin business filings go to the Department of Financial Institutions, not the Secretary of State. Sending documents or payments to the wrong agency wastes time.
- Using a P.O. box as your registered office. DFI requires an actual physical street address for the registered agent, not a mailbox service.
- Skipping the operating agreement. It's not filed with the state, but the bank you open an account with will likely ask for it, and it protects you if a member dispute ever comes up.
- Forgetting the annual report. It's easy to lose track of a date tied to your original filing anniversary rather than the calendar year. Set a recurring reminder.
- Assuming you need a general state business license. Wisconsin doesn't issue one. What you actually need depends on what you sell and where, so check the Seller's Permit requirement and your local city or county rules separately.
What to Expect After Filing
Once DFI accepts your Articles of Organization, typically within minutes for an online filing and up to the statutory 5 business days in most other cases, your Wisconsin LLC generally exists as a legal entity. From there, most new owners can expect to receive their EIN from the IRS the same day they apply online, and to be able to open a business bank account shortly after with your filed Articles and EIN in hand. Actual timelines for banks, licenses, and local permits vary, so confirm specifics with the institutions and agencies involved rather than assuming a fixed schedule.
This article is for general informational purposes only and does not constitute legal or tax advice. Wisconsin LLC filing fees, forms, and requirements can change, and your specific situation may call for guidance beyond what's covered here. Consult a licensed Wisconsin attorney or a CPA before making formation, tax election, or compliance decisions for your business.
Quick Reference: Wisconsin LLC Formation Costs
| Item | Cost |
|---|---|
| Articles of Organization (Form 502) | $130 |
| Name reservation (optional, 120 days) | $15 |
| Annual Report (Form 5), online | $25/year |
| Annual Report, paper | $40/year |
| Trade name / DBA registration | $15 |
| Seller's Permit, initial (2 years) | $20 |
| Registered agent change | $10 online / $25 paper |
| Expedited processing (optional) | +$100 to +$500 |
If a fee you need isn't listed here or you're filing something unusual (a series LLC, a professional LLC, or a foreign LLC registering into Wisconsin from another state), confirm the current figure directly on the DFI Business Entities page before you file.