Wisconsin LLC Name Search

Check if your business name is available in Wisconsin before you file, then see Wisconsin's LLC naming rules, fees and filing requirements

Wisconsin
Filing Fee
$130
Articles of Organization
Annual Report
$25
Due by the end of the calendar quarter your LLC’s formation anniversary falls in, each year
Name Reservation
$15
Holds a name for 120 days

How Much Does an LLC Cost in Wisconsin?

Filing your Articles of Organization in Wisconsin costs $130. After that, the annual report costs $25 a year and is due by the end of the calendar quarter your LLC’s formation anniversary falls in, each year.

  • Articles of Organization

    Filed online. Paper filings cost $170. Source →

    $130

  • Annual Report

    Due by the end of the calendar quarter your LLC’s formation anniversary falls in, each year. Paper filings cost $40. Source →

    $25

  • Name reservationOptional

    Holds a name for 120 days. Source →

    $15

  • Trade nameOptional

    Only if you do business under a name other than the LLC’s legal name. Source →

    $15

Checked against official Wisconsin sources on October 23, 2026. Fees change, so confirm with the state before you file.

LLC Requirements in Wisconsin

Formation Requirements

Basic Requirements

  • Operating Agreement (recommended)
  • Federal Tax ID (EIN)
  • Business Licenses (if applicable)

Registered Agent

Wisconsin requires all LLCs to maintain a registered agent in the state.

Processing Time

Most online filings are accepted as soon as they’re received.

Next-day expedited processing costs $100.

Source →

Contact the Wisconsin Business Filing Office

Search LLC Name isn’t a government website. For an official answer about a name or a filing, contact the state office directly.

Contact Details

Fax

304-558-8381

Address Information

Mailing Address

P O Box 7846, Madison, WI, 53707-7846

Physical Address

345 W. Washington Ave., 3rd Floor, Madison WI, 53703

Official Wisconsin Resources

Wisconsin LLC Name Search FAQ

Enter the name in the search at the top of this page to open Wisconsin’s official business entity search. Search close variations too: Wisconsin law requires a new LLC name to be distinguishable on the records of the Department of Financial Institutions (Wis. Stat. § 183.0112). A clear search is a good sign, but the state makes the final call when it reviews your filing.

It must include “Limited Liability Company” or an abbreviation such as “LLC” or “L.L.C.”. Wisconsin law requires a new LLC name to be distinguishable on the records of the Department of Financial Institutions (Wis. Stat. § 183.0112). Words like Bank, Insurance or Trust usually need approval from another agency.

A Wisconsin name reservation costs $15 and holds the name for 120 days.

Filing your Articles of Organization in Wisconsin costs $130. After that, the annual report costs $25 a year and is due by the end of the calendar quarter your LLC’s formation anniversary falls in, each year.

Most online filings are accepted as soon as they’re received. Next-day expedited processing costs $100.

Yes, Wisconsin requires every LLC to keep a registered agent in the state who can receive legal documents for the business.

Wisconsin requires an annual report ($25), due by the end of the calendar quarter your LLC’s formation anniversary falls in, each year. You also need to keep a registered agent in the state.

Wisconsin doesn’t require DBA registration. Registering a trade name with the Department of Financial Institutions is optional, costs $15 and lasts 10 years.

LLC Name Search in Other States