Clipboard with a blank form, a pen and a small plant on a desk, How to Start a Corporation in Wisconsin

How to Start a Corporation in Wisconsin

Last verified: November 10, 2026

To incorporate in Wisconsin you file Articles of Incorporation (Form 2) with the Department of Financial Institutions (DFI), and the state fee is $100. Our position: a corporation is worth the extra formality mainly when you expect several owners or outside investors; for a one-owner business, compare it first with an LLC or an S corp. This page walks through the filing, with a table showing what each required item in the articles looks like.

What You Need Before You File

  • A compliant name: under Wis. Stat. 180.0401 it must contain "corporation," "incorporated," "company" or "limited," or the abbreviation "corp.," "inc.," "co." or "ltd."
  • A registered agent: a Wisconsin street address for the registered office (not solely a P.O. box, mailbox service or answering service) and an email address for the agent
  • Incorporator details: the name and address of each incorporator; one person can be the only incorporator
  • A share count: the number of authorized shares goes in the articles
  • The filing fee: $100 for articles of incorporation, the same amount online and on paper
  • An EIN: free from the IRS once the corporation exists

Step-by-Step: How to File Articles of Incorporation in Wisconsin

Step 1: Check and Reserve Your Corporate Name

The corporate name must be distinguishable on DFI's records from existing entities and from names others have reserved or registered (Wis. Stat. 180.0401(2)). Start with the DFI business entity search, but treat a clear result as a hint: DFI's FAQ says no name is available until a filing is accepted (DFI business entity FAQ, archived copy of October 17, 2026).

If you are not ready to file, a written name reservation for a business corporation costs $15 and holds the name for 120 days (DFI Form 1, archived copy of June 8, 2026). The fee is not refundable. For the full name workflow, see how to check and reserve a Wisconsin business name.

Step 2: Choose a Registered Agent and Office

Every Wisconsin corporation must designate and maintain a registered office and registered agent (Wis. Stat. 180.0501). The office must be an actual physical location with a street address. The agent is either a Wisconsin resident whose business office is the registered office, or an entity whose business office is the registered office, and every agent must have an email address.

The choice is whose address goes on a public record: yours, a colleague's or a commercial agent's. If you would rather not use a home or shared address, a registered agent service is the usual answer. BetterLegal sells registered agent service as a separate subscription at $12.50 a month or $120 a year (BetterLegal pricing, checked November 5, 2026). Our Wisconsin registered agent guide explains how to choose, and our comparison of filing through DFI yourself and using a formation service covers the trade-offs. If you change the agent or office later, the statement of change costs $10 online or $25 on paper (DFI corporation fees, archived copy of October 19, 2026).

Step 3: Prepare the Articles of Incorporation (Form 2)

Wisconsin's list of what the articles must contain is Wis. Stat. 180.0202(1). Form 2 is the DFI form for a stock, for-profit corporation; you reach it through the DFI Business Entity File Online page (archived copy of October 24, 2026). The table below shows each required item and what an entry looks like. The entries are placeholders to show the shape of an answer, not a filing-ready document.

Required itemIllustrative entryWhat to know
Statement of incorporation"Incorporated under chapter 180 of the Wisconsin Statutes"Required by 180.0202(1)(a)
Corporate name[Your Name], Inc.Must carry a corporate word or abbreviation (Step 1)
Authorized shares[number of shares you choose]The statute requires a number but sets no minimum; more than one class adds more required detail
Registered office[Wisconsin street address]Physical location, not solely a P.O. box or mailbox service
Registered agent[agent name] and [agent email address]The agent's email address is required in the articles
Incorporator[name and address of each incorporator]One or more persons may act as incorporator (180.0201)

Everything else is optional under 180.0202(2): the statute lists the names of initial directors, a purpose clause, a par value and governance provisions as things the articles may set out, and says the articles need not list the corporate powers. A purpose clause is therefore not something DFI's statute demands. Read the form itself for any additional lines it asks for, and proofread names and addresses before you submit.

Step 4: File With the Department of Financial Institutions

File through the DFI Business Entity File Online page, which covers articles, amendments, annual reports and dissolutions for corporations (archived copy of October 24, 2026). The fee is $100 online and $100 on paper (DFI corporation fees, archived copy of October 19, 2026; Wis. Stat. 180.0122(1m)(a)). Corporate existence begins when the articles become effective (Wis. Stat. 180.0203).

What the statute says about timing: a filed record is effective on the date DFI receives it, at the time of day you specify or, if you specify none, at close of business, and you may choose a delayed effective date up to 90 days out (Wis. Stat. 180.0123). This guide does not promise a processing time. If you need an answer faster, 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.

Step 5: Hold the Organizational Meeting

After incorporation, someone has to finish organizing the company. If the articles name initial directors, those directors hold an organizational meeting to appoint officers; if they do not, the incorporators hold one to elect directors (Wis. Stat. 180.0205). The incorporators can act by signed written consent instead of meeting. Bylaws, share issuance and shareholder agreements follow from there, and they are the part of the process where a Wisconsin business attorney earns their fee for a multi-owner corporation.

Step 6: Get an EIN From the IRS

The IRS issues EINs through its online EIN tool in minutes and says you never have to pay a fee for one (read November 10, 2026). Anyone charging you for it is a reseller. You will need the EIN for a business bank account and for payroll if you hire. Our Wisconsin EIN guide has the details.

Step 7: Register for Wisconsin Taxes

If the corporation will make taxable sales, it needs a seller's permit from the Department of Revenue. Register through the DOR business tax registration portal or the Wisconsin One Stop Business Portal. The registration fee is $20 initially, which covers two years, and $10 to renew (DOR business tax registration, archived copy of October 9, 2026). The state sales tax rate is 5%, and most counties add 0.5% (DOR sales tax rates, archived copy of October 26, 2026); see our Wisconsin sales tax guide before you price anything. If you are unsure whether your sales are taxable, ask the Department of Revenue. If you will hire, see Wisconsin employer requirements. For the full list of registrations a new business may need, see how to register a business in Wisconsin.

Step 8: Calendar the Annual Report

A domestic corporation files an annual report on DFI Form 16 each year after the calendar year in which it was incorporated, during the calendar quarter that contains its incorporation anniversary (Wis. Stat. 180.1622(3); DFI Form 16, archived copy of October 22, 2026). The due dates are March 31, June 30, September 30 or December 31, depending on your quarter. A corporation incorporated in May 2027, for example, files its first report in the second quarter of 2028, by June 30. The fee is $25 online and $40 on paper (DFI corporation fees). The report restates the registered office and agent, the principal office, directors and principal officers, a brief description of the business, and the authorized and issued shares. Our Wisconsin annual report guide walks through filing.

Is a Corporation Filing the Same as a Business License?

No. DFI describes itself as a filing registry and says it cannot certify that a business operates legally (DFI general information, archived copy of October 13, 2026). Filing the articles creates the corporation; it does not license any activity. What your business does decides which state, city or county licenses apply, and we cover that in Wisconsin business license: what you need and how to get it.

Corporation, LLC or S Corporation?

This page is the corporation filing walk-through. If you are weighing structures, how to start an LLC in Wisconsin covers the LLC filing, and how to start an S corp in Wisconsin explains how the S election works with either entity. The state filing fee for corporation articles is $100, which is $30 less than the $130 online fee for LLC articles. Costs after formation differ more than the formation fee does, and our Wisconsin startup cost guide lays them out.

Wisconsin Tax Basics for a New Corporation

Wisconsin imposes either a franchise tax or an income tax on a corporation each year, not both, at a rate of 7.9%. The return is due on the 15th day of the fourth month after the close of the tax year, and estimated payments are required when the current-year liability will be $500 or more. Corporations with gross receipts from all activities of $4 million or more also owe an economic development surcharge. Corporate returns must be filed electronically unless DOR approves a waiver (DOR corporation franchise and income tax FAQ, archived copy of October 11, 2026). A corporation that makes an S election is taxed differently; see the S corp guide linked above. Owner-level taxes are in our Wisconsin income tax guide for business owners.

Common Mistakes to Avoid

  • A registered office that does not qualify: a P.O. box, mailbox service or answering service alone does not meet Wis. Stat. 180.0501.
  • Leaving out the agent's email address: the statute requires the agent to have one, and the articles carry it.
  • Counting the annual report from the wrong date: the first report falls in the year after incorporation, in the quarter of your anniversary, not on a calendar-year schedule.
  • Ignoring the annual report: DFI may start administrative dissolution once a report is more than one year overdue (Wis. Stat. 180.1420). DFI's administrative dissolution page says there are no late fees or penalties, and reinstatement after dissolution is $90 plus a $10 certificate of reinstatement (180.0122(1m)(r) and (s)). The better course is to file on time.
  • Skipping a seller's permit: if the corporation makes taxable sales, register with the Department of Revenue before you start selling.
  • Mixing personal and business money: open a separate account in the corporation's name using its EIN.

Changing Your Articles or Closing Later

Amending or restating the articles costs $40, and articles of dissolution cost $20 online or $35 on paper (DFI corporation fees, archived copy of October 19, 2026). A corporation formed in another state that wants to do business in Wisconsin does not use these articles; it registers as a foreign corporation on Form 21, for $100 plus $3 for every $1,000 (or fraction) of capital above $60,000 employed in Wisconsin, with a certificate of status from its home state issued within the past 60 days (DFI foreign entities, archived copy of July 12, 2026; Wis. Stat. 180.0122(1m)(u)). See Wisconsin foreign LLC and corporation registration for that route.

When to Consult a Professional

Consider a Wisconsin attorney or CPA if the corporation has several owners or outside investors, more than one class of shares, or regulated activities. The Wisconsin Small Business Development Center offers no-cost, confidential consulting at its campus locations (read November 10, 2026), and the SBA district offices page lists the federal contact.

Disclaimer

This article is informational only and does not constitute legal advice, tax advice, or professional services. Fees, forms and statutes change. Before filing, confirm current fees and forms with the Wisconsin Department of Financial Institutions and consult a qualified attorney or tax professional about your situation.

Sources

Keep exploring: related Wisconsin guides