Form a Business in Wisconsin
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Everything you need to form and maintain an LLC, Corporation, S-Corp, or DBA in Wisconsin. Filing fees, ongoing requirements, and tax treatment current for 2026 — sourced from the Wisconsin Secretary of State and the IRS.
Wisconsin business formation overview
If you're forming a business in Wisconsin, the four most common entity types are the LLC (most popular for solo founders and small partnerships), the C-Corporation (used by venture-funded startups), the S-Corporation (a tax election available to LLCs and corporations meeting IRS rules), and the DBA ("doing business as", a trade-name registration for sole proprietors and existing entities). Each has its own filing fee, ongoing report cycle, and tax treatment in Wisconsin.
The cheapest path to a registered business in Wisconsin is the LLC at $130 for the Articles of Organization. A C-Corporation costs $100 for the Articles of Incorporation, and a DBA registration is $15. After formation you'll have ongoing obligations: an annual report ($25, annual), a registered agent with a physical Wisconsin address, and any applicable franchise or income tax: None.
Wisconsin at a glance (2026)
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Frequently asked questions about forming a business in Wisconsin
How much does it cost to form an LLC in Wisconsin?
The state filing fee is $130 to file Articles of Organization with the Wisconsin Secretary of State. Optional add-ons (registered-agent service, expedited filing, certified copies) are extra. See our cost breakdown for the full picture.
Does Wisconsin require an annual report?
Yes — Wisconsin requires an annual report at $25 (annual). Missing the deadline triggers late fees and eventually administrative dissolution.
What is the franchise tax in Wisconsin?
None Always confirm rates with the Wisconsin Department of Revenue or your tax advisor before filing.
Do I need a registered agent in Wisconsin?
Yes. Every LLC and Corporation registered in Wisconsin must designate a registered agent with a physical street address in the state who can accept legal process during business hours. You can serve as your own agent, appoint a co-owner, or hire a commercial registered-agent service.
Sources & further reading
Disclaimer: Legal information, not legal advice. For advice about your specific situation, consult a licensed attorney or CPA in your state. See our full disclaimer.