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.
Self Employment Taxes Although we listed Pass Through Taxation as an LLC benefit, it can also be a disadvantage. Oftentimes the taxes that are passed through and reported as personal income of LLC members will be higher than the taxes at a corporate level. You will also still pay for federal inclusions such as Medicare and Social Security. If you're confused if this business structure will be the right tax choice for you, it's a good idea to speak to your accountant or financial advisor.

In a few states, you must take an additional step to make your company official: You must publish a simple notice in a local newspaper, stating that you intend to form an LLC. You are required to publish the notice several times over a period of weeks and then submit an "affidavit of publication" to the LLC filing office. Your local newspaper should be able to help you with this filing.

Check to see if your chosen name is available. Before you submit the Articles of Organization, you should check to see if your chosen name is available/acceptable under state law. You can do this by conducting an online search for business names that are already registered with the Department of Financial Institutions using the database provided.[4]

Depending on elections made by the LLC and the number of members, the IRS will treat an LLC as either a corporation, partnership, or as part of the LLC’s owner’s tax return (a “disregarded entity”). Specifically, a domestic LLC with at least two members is classified as a partnership for federal income tax purposes unless it files Form 8832 and affirmatively elects to be treated as a corporation. For income tax purposes, an LLC with only one member is treated as an entity disregarded as separate from its owner, unless it files Form 8832 and elects to be treated as a corporation. However, for purposes of employment tax and certain excise taxes, an LLC with only one member is still considered a separate entity.
After you've completed the steps described above, your LLC is official. But before you open your doors for business, you need to obtain the licenses and permits that all new businesses must have to operate. These may include a business license (sometimes also referred to as a "tax registration certificate"), a federal employer identification number, a sellers' permit, or a zoning permit. For more on business licenses and permits, see the Licenses & Permits for Your Business area of Nolo's website.
Indicate your LLC's initial registered agent and registered office. State law requires your LLC to have a registered agent and a registered office in Wisconsin on whom legal process can be served and to whom official documents can be sent. Your registered agent must be located at the registered office, which must be in Wisconsin and represent the physical business address of your registered agent.[8]
Outside of the normal statement filing season, you may fill out a Statement of Change form with the date you went out of business, the status and disposition of any equipment owned or used by you at the time the business closed. If any of the property was sold to another person or business, please indicate the buyer's name and address. Make sure to identify any property that reverted to your own personal use as household personal property.
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