SOS Entity SearchPublic registry guide

55 · jurisdiction profile

Wisconsin business filings, made easier to navigate.

This is the practical starting point for researching entities administered by Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services. Find the public search tool, understand the state’s filing rhythm, and plan the evidence and maintenance steps that follow.

Open official entity search

Domestic LLC

Wisconsin domestic LLC Articles of Organization are generally $130 online plus the $1 One Stop portal fee; paper processing and optional expedited service can change the total. File the correct Chapter 183 form with a Wisconsin registered agent/office and organizer/member information.

Domestic corporation

Wisconsin domestic business-corporation Articles of Incorporation use Chapter 180 and the DFI fee schedule; the One Stop online business-corporation filing is listed at $130 plus a $1 portal fee for eligible general-purpose corporations. Confirm paper and entity-specific charter charges in the live DFI fee table.

Standard turnaround

Wisconsin offers online formation through One Stop and DFI filing by mail/email or paper. No universal 2026 approval time is promised; complete online documents are generally faster and ordinary requests are processed in queue order.

Executive overview

What this state profile helps you decide

A state registry profile has two jobs. First, it tells you where the official record lives and how to search it. Second, it gives you enough compliance context to understand what the record means after you find it.

For Wisconsin, the filing office is Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services. The current public-facing portal is powered or identified as Wisconsin DFI Corporate Records Search / One Stop Business Portal. The agency page and search engine should be treated as the final source for live forms, accepted payment methods, processing queues, and entity-specific notices.

Use this page when you need a high-level answer. Use the linked modules when you are preparing an actual filing, trying to cure a delinquency, ordering documentary evidence, or changing the statutory agent.

State filing snapshot

The numbers and obligations to surface first

Decision pointWhat the current profile says
Domestic formationLLC: Wisconsin domestic LLC Articles of Organization are generally $130 online plus the $1 One Stop portal fee; paper processing and optional expedited service can change the total. File the correct Chapter 183 form with a Wisconsin registered agent/office and organizer/member information.
Corporation: Wisconsin domestic business-corporation Articles of Incorporation use Chapter 180 and the DFI fee schedule; the One Stop online business-corporation filing is listed at $130 plus a $1 portal fee for eligible general-purpose corporations. Confirm paper and entity-specific charter charges in the live DFI fee table.
Foreign qualificationLLC: Wisconsin foreign LLC Registration Statement Form 521 is $100 in the current DFI product list, with paper/online and expedited processing charges potentially added. Supply home-jurisdiction evidence and a Wisconsin registered agent/office.
Corporation: Foreign corporation qualification uses the Wisconsin DFI registration form and a capital-representation/foreign-corporation fee schedule; the amount depends on the proportion of capital represented in Wisconsin. Confirm the exact 2026 total in DFI's current fee calculator and attach acceptable home-jurisdiction evidence.
Recurring maintenanceLLC: Wisconsin domestic LLC annual reports are $25 per year and foreign LLC annual reports are $80. Domestic due dates are March 31, June 30, September 30, or December 31 based on the formation quarter; foreign LLC reports are due March 31. Paper filing carries a $15 surcharge, and the Form 5-I May 2026 instructions warn that nonfiling can cause administrative dissolution or foreign revocation.
Corporation: Wisconsin corporations file annual reports under their chapter-specific schedule; domestic business-corporation fees depend on the DFI form, while foreign corporation annual reports are generally $80 plus the applicable capital/fee rules. Due dates follow the domestic incorporation quarter or foreign qualification schedule; paper reports carry a $15 surcharge where specified.
Registered agentWisconsin's registered agent is an individual or existing entity resident/authorized in Wisconsin and designated to receive service, annual reports, tax forms, and official communications. The registered office must be a Wisconsin service address, and agent/office data are public in DFI records.

Choose your next guide

Formation is the beginning, not the compliance plan

The cheapest formation route is not always the simplest operating route. Before filing, confirm the name standard, statutory agent requirements, authorized-share or member information, local licensing, tax registrations, and any professional-entity restrictions that apply to the planned activity.

After formation, calendar the first report or statement immediately. A newly created entity may have a first-year exception, an anniversary-month due date, a quarterly filing window, or a separate tax obligation. Treat the agency record, revenue department account, and local license file as related—but separate—workstreams.

How to use the official record responsibly

Save the entity ID, legal name, status, registered agent and office, formation or qualification date, and the most recent filed document. When a third party asks for “proof,” ask whether it needs a current certificate, certified charter, tax clearance, apostille, or a plain search result. Those are different documents with different evidentiary value.