How to Use WDFI to File, Update and Maintain a Wisconsin Business
How to Use WDFI to File, Update and Maintain a Wisconsin Business
If you need the state office that handles business formation in Wisconsin, you want the Wisconsin Department of Financial Institutions, usually called WDFI or “wisconsin dfi.” Wisconsin does not file business entities with a Secretary of State. The Division of Corporate and Consumer Services at DFI records LLCs, corporations, trade names and the annual reports that keep them active. This guide covers the full cycle: searching for a name, filing articles, making changes later, and staying in good standing each year.
This article is informational only and is not legal or tax advice. The fees and deadlines below are the figures DFI and the Department of Revenue publish as of 2026. Confirm anything that affects your filing on the agency page before you pay.
What DFI Handles and What It Does Not
DFI is Wisconsin’s business filing office. Through its online and paper channels you can search business records, form an entity, amend it, file annual reports, change your registered agent, register a trade name and order a Certificate of Status. The general information page is at https://dfi.wi.gov/Pages/BusinessServices/BusinessEntities/GeneralInformation.aspx.
DFI does not handle several things people often assume it does:
- Seller’s permits. The Wisconsin Department of Revenue issues these through Business Tax Registration. Any seller of taxable products or services needs one.
- Professional credentials. The Department of Safety and Professional Services (DSPS) licenses regulated occupations.
- Activity licenses and zoning. Licenses tied to specific activities come from DSPS, from DATCP or a local health department acting as DATCP’s agent, or from municipal clerks for alcohol and other listed activities. Cities and counties also handle zoning.
Wisconsin has no general statewide business license, and most cities do not require one either. A few do, such as Lake Geneva, so ask your municipal clerk what applies to your address.
If you want several registrations handled in one pass, the Wisconsin One Stop Business Portal at https://onestop.wi.gov registers a new business with DFI, the Department of Revenue and the Department of Workforce Development together. Activity licenses are still separate, so check each one.
What You Need Before You Start
- A compliant name. An LLC name must include “limited liability company,” “limited company,” “LLC” or “LC,” or a variation that differs only in capitalization or punctuation. “Limited” may be abbreviated “Ltd.” and “company” may be abbreviated “Co.”
- A registered agent with a Wisconsin street address. The registered office must be an actual physical street location that matches the agent’s business office. A P.O. box, mailbox service or telephone answering service does not qualify. The agent also needs an email address, because DFI directs annual report forms and other official communications to the agent. The business cannot name itself as its own registered agent.
- Organizer and office details. Write down the names and addresses the form asks for, including the organizer and the principal office, before you open the form.
- A payment method the agency accepts. Online filing takes a card. For paper filings, confirm the accepted payment method on the DFI page.
Fee Quick Reference
| Filing | Fee | Notes |
|---|---|---|
| LLC Articles of Organization (Form 502) | $130 online / $170 paper | Authority: sec. 183.0201 Wis. Stats. |
| Corporation Articles of Incorporation, stock (Form 2) | $100 | Authority: ch. 180 Wis. Stats. |
| Nonstock corporation | $35 | Confirm the form and filing method on the DFI page |
| Amendment | $40 | Used for LLC name changes and other changes to filed articles |
| Registered agent or office change | $10 online / $25 paper | Statement of change |
| Certificate of Status | $10 | Confirms standing on DFI records |
| LLC annual report (Form 5) | $25 online / $40 by mail | Paper adds a $15 surcharge |
| Corporation annual report (Form 17) | $25 online / $40 by mail | Paper adds a $15 surcharge |
| Foreign LLC annual report | $80 | Due March 31 |
| Name reservation | $15 | Holds the name for 120 days |
| Expedited service | $100 added to the filing fee | Acted on by close of business the first business day after receipt |
| Trade name registration | $15 per name | Renewal is $15, filed in the six months before expiration |
| Seller’s permit (Department of Revenue) | $20 for an initial two-year period, $10 to renew each two years | Not a DFI fee |
Step 1: Search the DFI Records
Start with the DFI business search at https://apps.dfi.wi.gov/apps/corpsearch/Search.aspx. Search your proposed name exactly as you plan to file it, then search the core words without the ending. If you are considering “Lakeshore Trading Company,” also search “Lakeshore Trading” to catch close matches. A Wisconsin name must be distinguishable on DFI records from other registered entities and from any reserved or registered name.
Treat the search as a preliminary check. Availability is final only once DFI examines and files your document. A name that looks open today can be taken before you file, so do not order signs or print cards until the filing is accepted.
The same search shows the record for any business you plan to work with, including its status. If you want to confirm that a vendor, contractor or lender is registered and active, check the record before you sign.
Step 2: Prepare the Formation Document
An LLC files Articles of Organization, Limited Liability Company (Form 502). A corporation files Articles of Incorporation, Stock, For-Profit Corporation (Form 2). Download the current version from DFI before you start, and fill in the entity name, the registered agent and registered office, and the other items the form requests.
Check three items before you file, since they are the most common sources of delay:
- The registered agent’s email address is entered. It is required on the formation document.
- The registered office is a physical Wisconsin street address that matches the agent’s business office.
- The entity name matches the name you searched, including the required ending for an LLC.
Step 3: File Online or on Paper
Online filing runs through DFI’s Business Entity File Online portal at https://dfi.wi.gov/Pages/BusinessServices/BusinessEntities/FileOnline.aspx. An LLC filed online pays $130. The same filing on paper costs $170, which is $40 more, and paper filings are mailed to DFI’s Milwaukee lockbox.
Online filings are in most cases accepted upon receipt, with immediate notice to you. DFI’s statutory limit for processing new business filings is five business days, so plan around that window for paper filings and for any filing that needs correction. Once the filing is accepted, keep a copy of the accepted articles with your company records.
Step 4: Decide Whether You Need Expedited Service
Expedited service adds $100 to the filing fee, whether you file online or on paper. With expedited service, DFI acts on the document by the close of business on the first business day after it receives it.
Documents delivered in person to the DFI customer service counter in Madison can be handled faster for an added charge. Processing within four hours costs $250, and processing within one hour costs $500 at the Madison Yards Way counter. Expedited handling speeds up review only. It does not fix an incomplete or inaccurate filing, so a rejected document still has to be corrected.
Step 5: Complete Your Tax and Activity Registrations
Forming the entity does not finish your state registrations. Anyone selling taxable products or services needs a seller’s permit from the Department of Revenue, obtained through Business Tax Registration at https://tap.revenue.wi.gov/BTR/. The permit costs $20 for an initial two-year period and $10 to renew each subsequent two years. The state sales tax rate is 5%. The Department of Revenue’s new business page is at https://www.revenue.wi.gov/Pages/Businesses/New-Business-home.aspx.
Entity tax treatment matters here too. By default, a multi-member LLC is treated as a partnership and a single-member LLC as a disregarded entity, so profits flow through to the owners’ Wisconsin individual income tax at graduated rates of 3.50% to 7.65%. An LLC that elects corporate treatment pays the 7.9% corporate franchise or income tax. Wisconsin imposes no separate LLC franchise or privilege tax. Federal registrations are handled outside DFI, so confirm them with your CPA.
Finally, check whether your activity needs a DSPS credential, a DATCP or local health department license, or a municipal license from your city or county clerk. Those are separate from your DFI filing.
How to Update a Filing
Changing an LLC name in Wisconsin
An LLC name change is made by filing an amendment to your articles, which costs $40. Search the new name first using the same DFI search, because the distinguishability rules still apply. The new name must also meet the LLC ending requirements. If you need to hold the new name while you prepare the amendment, a name reservation costs $15 and holds the name for 120 days.
The amendment changes the name on the DFI record. It does not change your bank account, seller’s permit, contracts, vendor accounts, insurance policies, licenses or website. Update each of those yourself. If you registered a trade name under the old LLC name, check whether it still applies. Ask your CPA whether the change affects your tax filings.
Changing your Wisconsin registered agent
Use the statement of change of registered agent or office. It costs $10 when filed online and $25 on paper. Have the new agent’s physical street address and email ready before you start. Do not use a P.O. box, mailbox service or answering service. Once DFI processes the change, the new agent receives annual report forms and other official notices, so confirm the new agent will watch that inbox.
Other changes to filed articles
Changes to information in your filed articles require an amendment, which costs $40. Confirm on the DFI forms page which items the amendment form covers and whether your change needs a DFI filing at all. If you are unsure, ask a qualified professional before you file.
Trade names (DBA)
Registering a trade name costs $15 per name, and you can file online or in person at the DFI Trademarks and Trade Names Bureau. DFI stopped accepting mailed trademark filings in March 2020. Renewal costs $15 and may be filed in the six months before the registration expires. Trade name registration is optional. Your business can use a trade name without registering it, but registration helps you show that you hold the name. Fee details are at https://dfi.wi.gov/Pages/BusinessServices/Trademarks/Fees.aspx. Sole proprietorships and partnerships may also record a firm name with the county register of deeds under Wis. Stat. 134.17, at a fee the county sets.
Maintaining Your Entity Each Year
LLCs and corporations must file an annual report each year after the year of organization. The report is due during the calendar quarter that contains the anniversary of organization or incorporation:
| Organized between | Annual report due |
|---|---|
| January 1 and March 31 | March 31 |
| April 1 and June 30 | June 30 |
| July 1 and September 30 | September 30 |
| October 1 and December 31 | December 31 |
For example, an LLC organized on August 14, 2026 falls in the July to September quarter. Its first annual report is due September 30, 2027, and later reports follow the same quarter each year. The LLC annual report (Form 5) and corporation annual report (Form 17) each cost $25 online. Paper costs $40 because of the $15 surcharge. A foreign LLC registered to do business in Wisconsin pays $80 and files by March 31.
Check your status each year by searching your record. The status field shows whether the entity is active. A record marked Delinquent, shown as DLQ, usually means a required filing such as the annual report is overdue. Delinquent status can cause problems with banks, lenders and other parties that check standing. Contact DFI to learn what steps restore active status before you rely on the entity for a loan or contract.
If a lender, bank or other party asks for proof that your entity is in good standing, a Certificate of Status costs $10. Confirm with the requesting party what document they need.
Common Mistakes to Avoid
- Treating the name search as final. A preliminary search does not reserve the name. Use a name reservation if you need time.
- Using a P.O. box for the registered office. The registered office must be a physical Wisconsin street location.
- Naming the company as its own registered agent. The business cannot serve as its own agent.
- Leaving out the agent’s email. It is required on the formation document and on every annual report.
- Missing the annual report quarter. Mail filings cost $15 more, and a missed filing can produce a Delinquent status.
- Changing the name only with DFI. Your bank, seller’s permit, contracts and licenses still show the old name until you update them.
- Assuming DFI issues every license. Seller’s permits come from the Department of Revenue, credentials come from DSPS, and local licenses come from your municipality.
- Mailing a trademark filing. DFI no longer accepts mailed trademark filings, so file trade names online or in person.
What to Expect
A complete, accurate online filing is typically accepted on receipt, and you may receive notice right away. Paper filings are generally slower, and DFI’s statutory processing limit for new business filings is five business days. Expedited service may shorten review time for a fee, but it does not replace an accurate filing. Keeping your annual report current and your registered agent information up to date usually keeps the record active, though you should confirm your status on the DFI search each year.
Next Steps and Professional Help
Once your entity is on file, register for your seller’s permit, confirm any activity licenses, and calendar your annual report quarter. If you have a complex ownership structure, plan to raise money, or are changing your entity type, talk with a qualified attorney and a CPA before you file. The Wisconsin Small Business Development Center Network at https://wisconsinsbdc.org/ and the SBA’s Wisconsin district office at https://www.sba.gov/district/wisconsin can also point you to local advisers.
Disclaimer: This article is general information about Wisconsin business filings and is not legal or tax advice. Laws, fees and agency procedures change. Verify current requirements with the Wisconsin Department of Financial Institutions, the Wisconsin Department of Revenue and a qualified attorney or CPA before you act on any part of this guide.