How to Form an LLC in Wisconsin

Steps to Form Your Wisconsin LLC

1. 1

   Choose Your LLC Name

   Must include "LLC" or "Limited Liability Company." Search the Department of Financial Institutions website to confirm availability. Cannot be the same as an existing business in Wisconsin.

2. 2

   Designate a Registered Agent

   Must have a physical address in Wisconsin. Can be yourself, a friend, or a registered agent service ($50-300/year). This person receives legal documents on behalf of your LLC.

3. 3

   File Articles of Organization

   File with the Department of Financial Institutions. Fee: $130. Processing: 5-10 business days. File online →

4. 4

   Get an EIN (Federal Tax ID)

   Free from the IRS. Takes 5 minutes online. Required for bank accounts, hiring, and tax filing. See our EIN guide →

5. 5

   Create an Operating Agreement

   Not required in all states but strongly recommended. Defines ownership percentages, profit distribution, management structure, and what happens if a member leaves.

6. 6

   Open a Business Bank Account

   Keeps personal and business finances separate. Bring your EIN, Articles of Organization, and Operating Agreement to any bank. Required to maintain LLC liability protection.

Wisconsin Tax Info for LLCs

3.54-7.65% graduated income tax

Annual report due on anniversary quarter.

Ongoing Requirements

• • Annual/Biennial Report: $25/year
• • Filing Entity: Department of Financial Institutions
• • Registered Agent: Must maintain one in Wisconsin at all times
• • Tax Filing: Federal return (Form 1065 for multi-member, Schedule C for single-member) + state return if applicable