Please do not place your social security number on filing or other documents you submit to the Secretary of State. Although we attempt to prevent disclosure of social security numbers, due to the large number of documents filed, we cannot guarantee that a social security number placed on a document will not be disclosed. It is the responsibility of the filer to ensure that a social security number is not contained on the filing.
Versatile Tax Status One of the most advantageous aspects of the LLC is that it has the ability to choose how it is treated as a taxable entity. According to the IRS an LLC is, by default, federally taxed as a partnership (in the case of a multi-member LLC) or as a sole proprietor (in the case of a single member LLC). The LLC, however, may elect to be taxed as a C- or S-corporation at any time the members so choose.
All business filings were manually maintained prior to 1973. The office then began entering new filings into a computerized system. Data for businesses that were formed prior to 1973 was entered into the computerized system if they were still active at that time. The data for businesses that were not active in 1973 and have not reinstated, has been partially entered into the system. Images of approved filings were maintained on microfilm prior to 1997 when office began converting the film for all active businesses to a computerized format. Newly submitted filings since that time have been created and maintained in this computerized format. 

A limited-liability company ("LLC") is commonly referred to as a "hybrid" business structure, meaning that it shares characteristics of both a corporation and a sole proprietorship. It allows its owners to insulate themselves from personal liability for business debts, does not require the payment of separate business taxes (the tax "passes through" to its owners), allows for a great deal of flexibility with regards to its organizational structure, and is subject to fewer regulations and restrictions than are other types of business structures.[1] Establishing such a company in Wisconsin is a rather straightforward process.

Please do not place your social security number on filing or other documents you submit to the Secretary of State. Although we attempt to prevent disclosure of social security numbers, due to the large number of documents filed, we cannot guarantee that a social security number placed on a document will not be disclosed. It is the responsibility of the filer to ensure that a social security number is not contained on the filing.
Get an Employer Identification Number from the IRS. If your LLC has more than one member, you will need this number so your LLC can pay federal and state taxes properly, hire employees, and open a company bank account.[13] You can apply for this number: (1) online[14]; (2) by contacting the IRS at (800) 829-4933; or (3) by completing and mailing in Form SS-4 to the address listed on the form.[15]

If you received a Notice to File a Business Property Statement from the Assessor and your business is no longer in operation, you are still required to file the Business Property Statement. You should also include a note on the Business Property Statement indicating that the business has closed, so the Assessor does not continue to assess the property.

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