How to Form an LLC in Wisconsin (2026)

1. 1Choose a name for your LLC and verify availability by searching the Wisconsin DFI business entity database. Your name must include "Limited Liability Company," "LLC," or "L.L.C."
2. 2Appoint a registered agent with a physical street address in Wisconsin.
3. 3File Articles of Organization with the Wisconsin Department of Financial Institutions (DFI). The filing fee is $130 online or $170 by mail.
4. 4Obtain an EIN (Employer Identification Number) from the IRS at no cost.
5. 5Create an operating agreement. Not legally required in Wisconsin but strongly recommended.
6. 6Open a business bank account with your Articles of Organization, EIN, and operating agreement.
7. 7Obtain any required state and local business licenses or permits.
8. 8File your first annual report by the end of the quarter in which your LLC was formed. The fee is $25.

• ✓Obtain an EIN from the IRS (free, apply online at irs.gov)
• ✓Open a dedicated business bank account
• ✓Register for Wisconsin state taxes with the Department of Revenue
• ✓Get business insurance (general liability at minimum)
• ✓Set up an accounting system to track income and expenses
• ✓Apply for any local business licenses or permits
• ✓File your first annual report ($25) by the end of your formation quarter

Your Wisconsin LLC name must contain "Limited Liability Company," "LLC," or "L.L.C." Restricted words like "Bank," "Insurance," or "Trust" require additional licensing. The name must be distinguishable from existing business entities registered with DFI. Wisconsin uses the Department of Financial Institutions (DFI) for business filings, not the Secretary of State.

Wisconsin LLCs are pass-through entities by default. Members pay Wisconsin individual income tax on their share of profits (rates from 3.5% to 7.65%). Wisconsin does not impose a franchise tax on LLCs. The annual report costs $25. Online filing is $40 cheaper than mail ($130 vs. $170).

LLC vs. other structures in Wisconsin

Wisconsin has moderate LLC costs: $130 online ($170 by mail) to file and $25/year. Total first-year cost is $155 online. The income tax rates are moderate. Wisconsin uses the Department of Financial Institutions (DFI) rather than the Secretary of State, which is unusual but does not affect the filing process.

• •File an annual report by the end of the quarter in which your LLC was formed — $25 fee
• •Maintain a registered agent with a physical address in Wisconsin at all times
• •Keep your operating agreement current and update it when membership changes
• •File Wisconsin state income tax returns for all members receiving pass-through income
• •Renew any local business licenses or permits as required

Wisconsin has higher-than-average LLC costs. Weigh the total cost of formation and annual maintenance against your expected revenue before deciding.

In general, you should form your LLC in the state where you physically live and conduct business. Forming in a "tax-friendly" state like Wyoming, Delaware, or Nevada sounds appealing, but if you operate in Wisconsin, you will still need to register as a foreign LLC there — paying fees in both states.

An LLC is almost always a better choice than operating as a sole proprietorship because of the personal liability protection it provides. However, if your LLC is highly profitable, you should talk to a CPA about electing S-Corp tax treatment to potentially reduce your self-employment tax burden.

What Wisconsin LLC Owners Need to Know

• •Wisconsin uses the Department of Financial Institutions (DFI) for business filings, not the Secretary of State
• •Annual report is $25 and due by the end of the quarter in which the LLC was formed
• •Online filing is $40 cheaper than mail ($130 vs. $170)

Official Wisconsin Resources

• Wisconsin DFI — Corporate Filings
• Wisconsin Online Business Filing