A limited liability company, commonly called an "LLC," is a business structure that combines the pass-through taxation of a partnership or sole proprietorship with the limited liability of a corporation.
Like owners of partnerships or sole proprietorships, LLC owners report business profits or losses on their personal income tax returns; the LLC itself is not a separate taxable entity. Like owners of a corporation, however, all LLC owners are protected from personal liability for business debts and claims -- a feature known as "limited liability." This means that if the business owes money or faces a lawsuit, only the assets of the business itself are at risk. Creditors usually can't reach the personal assets of the LLC owners, such as a house or car. (Both LLC owners and corporate shareholders can lose this protection by acting illegally, unethically, or irresponsibly.)