How to Start an LLC in Wisconsin (2025 Guide)

How to Form an LLC in Wisconsin in 5 Steps

In order to form your LLC in Wisconsin, there are certain steps you’ll need to complete:

1. Name Your Wisconsin LLC
2. Choose a Registered Agent
3. File Your LLC Articles of Organization
4. Create an LLC Operating Agreement
5. Obtain an EIN

Step 1: Name Your Wisconsin LLC

Before you get started, you will need to pick a suitable name for your Wisconsin LLC. 

This will need to comply with all applicable naming requirements under Wisconsin law and be both succinct and memorable, as this will make it easily searchable by your potential clients.

1. Wisconsin LLC Naming Guidelines

• Your name must include the phrase “limited liability company,” “limited company,” or the abbreviations “LLC” or “LC.” 
• Your name cannot include words that contain language stating or implying that it was organized to operate in certain industries without prior approval (e.g., Bank, Law Firm, etc.). 
• Your name must be distinguishable from all other entities registered with the Department of Financial Institutions, as well as with all names that have been reserved.  
• Your name cannot include words that could create a false implication of an affiliation with a state or federal government body (e.g., State, Division, FBI, etc.). 

For a full list of these rules, we recommend having a look at Wisconsin’s official LLC naming guidelines. 

2. Wisconsin Name Availability Search

To check whether your desired name has already been taken by another business entity in Wisconsin, you can perform a Taxable Entity Search on the State of Wisconsin’s Business Entity Search.

If you’re not going to start your LLC right away, it might be a good idea to consider reserving your name for up to 120 days. You can do this by filing a Name Reservation Application and paying the $15 filing fee. 

For more information, have a look at our Wisconsin LLC Name Search guide.

3. Finding the Right Domain

We recommend that you check online to see if your business name is available as a web domain. Even if you don’t plan to make a business website right away, this is an extremely important step as it will prevent others from acquiring it, potentially saving you both time and money in the long term. 

Once you have verified your name is available, you may now select a professional service to complete the LLC formation process for you.

FAQ: Naming a Wisconsin LLC

Step 2: Choose an Initial Registered Agent in Wisconsin

After you find the right name for your LLC, you will need to nominate a Wisconsin registered agent. This is a necessary step in your Articles of Organization (i.e., the document used to file and register your LLC with the Secretary of State).

What is a registered agent?

A registered agent is an individual or business entity responsible for receiving important legal documents on behalf of your business. You can think of your registered agent as your business’s primary point of contact with the state.

Who can be a registered agent?

A registered agent can be a resident of Wisconsin or a corporation that is authorized to conduct business in the state. You can choose to elect an individual within the company (e.g., yourself, etc.), use an attorney (not recommended due to the high cost), or go with a registered agent service.

FAQ: Nominating a Registered Agent

Step 3: File the Wisconsin LLC Articles of Organization

To register your Wisconsin LLC, you’ll need to file the Articles of Organization with the Department of Financial Institutions. You can do this online, by mail, or by fax.

Before filing, you will need to make sure that you complete your Articles of Organization correctly; we recommend having the following on hand: 

• The name of your LLC 
• The name, email address, and street address of your initial registered agent (keep in mind that a P.O. box or mailbox service is not acceptable for this purpose)
• The street and mailing address of your LLC’s principal office
• The names and addresses of your LLC’s organizers 
• Your signature and printed name, as well as the effective date of your LLC’s formation (this can be up to 90 days following the day of filing).
• Your contact information

File the Articles of Organization

OPTION 1: File Online With the Department of Financial Institutions

File Online

– OR –

OPTION 2: File by Mail

Download Form

State Filing Cost: $131 online, $170 by mail, payable to the Department of Financial Institutions (Nonrefundable)

Mailing Address:
State of WI – Dept. of Financial Institutions
P.O. Box 93348
Milwaukee, WI 53293

For help with completing the form, visit our Wisconsin Articles of Organization guide.

Note: If you’re expanding your existing business to the state of Wisconsin, you’ll need to register as a foreign limited liability company (LLC) instead.

FAQ: Filing Wisconsin LLC Documents

Step 4: Create a Wisconsin LLC Operating Agreement

An operating agreement is not required for a Wisconsin LLC, but it’s a good practice to have one.

What is an operating agreement? An operating agreement is a legal document outlining the ownership and operating procedures of an LLC.

Why are operating agreements important? A comprehensive operating agreement ensures that all business owners are on the same page and reduces the risk of future conflict.

You can use the free tool in our Business Center to create a custom operating agreement in minutes — or download our free templates:

• Wisconsin Single-Member LLC Operating Agreement
• Wisconsin Multi-Member LLC Operating Agreement

FAQ: Creating a Wisconsin LLC Operating Agreement

Step 5: Get an EIN for Your Wisconsin LLC

You can get a Federal Employer Identification Number (EIN) from the IRS for free. It is used to identify a business entity and keep track of a business’s tax reporting. It is essentially a Social Security number (SSN) for the company.

Why do I need an EIN? An EIN number is required for the following:

• To open a business bank account for the company
• For federal and state tax purposes
• To hire employees for the company

Where do I get an EIN? An EIN is obtained from the IRS (free of charge) by the business owner after forming the company. This can be done online or by mail.

FOR INTERNATIONAL APPLICANTS: You do not need an SSN to get an EIN. Learn more here.

Get an EIN

Option 1: Request an EIN from the IRS

Apply Online

– OR –

Option 2: Apply for an EIN by Mail or Fax

Download Form

Mail to:
Internal Revenue Service
Attn: EIN Operation
Cincinnati, OH 45999

Fax: (855) 641-6935

Fee: Free

FAQ: Getting an EIN

Best LLC Services in Wisconsin Compared

For a comprehensive comparison, read our Best LLC Service guide. We reviewed and ranked the top LLC formation services to help you determine the best fit for your new business.

Important Next Steps to Protect Your Wisconsin LLC

After you’ve formed your LLC, you’ll need to complete several key steps in order to:

• Separate your personal and business assets
• Stay compliant with state and federal laws

1. Get a Business Bank Account and Credit Card

Getting a dedicated business bank account is an essential part of operating legitimately because it keeps your personal and business assets separate therefore helping to shield your personal limited liability. 

Skipping this step can often lead to:

• Courts determining you haven’t been treating your LLC as a separate entity
• Your “corporate veil” being pierced, meaning you’ll no longer benefit from limited liability in law. 

Recommended: Check out our Best Business Bank Accounts for LLCs in 2025 review. 

You also may choose to acquire a corporate credit card if you’re interested in building your LLC’s credit and potentially raising capital down the line. 

2. Check If You Need a Wisconsin Business License

Wisconsin doesn’t require LLCs to hold a “general” business license in order to operate. 

Even so, your licensing needs will ultimately depend on your exact location and industry because licensing is regulated at a local, state, and federal level.

• Local Licenses: You should check with your city or county clerk’s office to identify any local licensing requirements, such as zoning permits or health department approvals, with which you’ll need to comply. 
• State-Level Licenses: You can use the Wisconsin One Stop Business Portal to find out whether or not your business will need a state-issued license or permit. 
• Federal Licenses: While most Wisconsin LLCs won’t be subject to federal regulation, those involved in heavily regulated industries, such as agriculture, alcohol, and firearms, will. Visit the U.S. Small Business Administration’s website to find the relevant federal agency you’ll need to contact.

A few questions to ask yourself when deciding whether you need a license include:

• Will you sell, lease, or rent taxable goods or services? If so, you’ll need to register for a Seller’s Permit through the Wisconsin Department of Revenue. You can find more information on this in our Wisconsin Sales Tax Guide. 
• Will you work as a licensed professional? If your LLC will focus on regulated fields,  such as medicine, law, insurance, or real estate, you’ll need to ensure you or a member of your LLC is appropriately licensed.
• Will your LLC’s activities negatively impact the environment? If so, you might need to obtain a business license or permit from the Wisconsin Department of Natural Resources.

For more information, read our Wisconsin Business License guide. If you’d rather have a service handle this step for you, we recommend checking out LegalZoom’s Business License service.

3. Understand Your Wisconsin LLC Tax Obligations

Wisconsin LLCs aren’t all taxed in the same way because LLCs are taxed as pass-through entities by default. This means they’re largely taxed similarly to sole proprietors — the business gets paid, the profits pass to you as the owner, and you get taxed. There’s no “corporate” tax involved. 

Federal Tax Implications

You’ll need to submit personal income tax returns using either Form 1040 (for single member LLCs) or Form 1065 (for multi-member LLCs). If you have employees, you’ll also be subject to federal income tax withholding. 

State Tax Implications

Depending on your business structure and activities, your LLC may need to pay sales tax, corporate franchise tax, and various other industry-specific taxes. If your LLC is treated as a pass-through entity, you’ll have to pay income tax at rates ranging from 3.5% to 7.65%.

If your LLC will have employees, you’ll also need to register for employer withholding with the Wisconsin Department of Revenue.

Local Tax Implications

Wisconsin allows counties and certain municipalities to impose additional local sales and use taxes on top of the 5% state rate. This means your LLC could be responsible for up to an additional 0.9% in county sales tax and up to 2% in city sales tax, depending on where your business operates. 

Your LLC also may need to pay property taxes if it owns real estate.

For more information on the Wisconsin-specific LLC tax obligations that may apply to you, refer to our in-depth Wisconsin LLC Taxes guide. Alternatively, you can schedule a free online consultation with 1800-Accountant for all your tax-related questions. 

4. Get Business Insurance for Your LLC in Wisconsin

Even though an LLC offers limited liability, you’ll still likely need to purchase some form of business insurance to protect your LLC’s assets. 

This is because an LLC’s default limited liability protects your personal assets, not the business’s. Some of the most common types of business insurance include:

• General Liability Insurance: This is a broad insurance policy that protects your business from lawsuits. Most small businesses end up getting general liability insurance.
• Professional Liability Insurance: This is a business insurance policy for professional service providers (consultants, accountants, etc.) that covers your LLC against claims of malpractice and other business errors.
• Workers’ Compensation Insurance: This insurance covers medical costs and lost wages if an employee is injured on the job. It’s legally required in Wisconsin for any business with three or more full-time or part-time employees.

Want to learn exactly what coverage your business may need? Read our full Wisconsin Business Insurance guide.

5. Learn How to Properly Sign Your LLC’s Legal Documents

Improperly signing a document as yourself and not as a representative of the business can leave you open to personal liability. 

When signing legal documents on behalf of your company, you we recommend following this formula to avoid any problems:

• Formal name of your business
• Your signature
• Your name
• Your position in the business as its authorized representative

It’s important to be consistent and sign all official documents using this format. This’ll help protect your personal assets by clearly showing that the agreement is with the LLC, not you as an individual.

6. Submit an Annual Report for Your Wisconsin LLC

All LLCs based in Wisconsin are required to file an annual report with the Wisconsin Department of Financial Institutions alongside a filing fee of $25 (or $40 for persons filing via mail.) You’ll need the following information on hand before you can correctly file this report: 

• Your LLC’s name
• The name and address of your registered agent
• Your LLC’s business email address
• The signature of the person filing the report

This report is typically due by the end of the quarter in which your LLC was formed and can be filed either online or by mail.

Note: Your LLC will be dissolved if it fails to file an annual report within a year of the deadline.

To stay on top of this deadline and other important compliance tasks, we recommend hiring a professional registered agent service — they can help ensure you never miss a filing.