Corporations must pay tax on their taxable income independently of their shareholders. Shareholders are also subject to tax on dividends received from corporations. By contrast, partnerships are not subject to income tax, but their partners calculate their taxes by including their shares of partnership items. Corporations owned entirely by U.S. citizens or residents (S corporations) may elect to be treated similarly to partnerships. A limited liability company and certain other business entities may elect to be treated as corporations or as partnerships. States generally follow such characterization. Many states also allow corporations to elect S corporation status. Charitable organizations are subject to tax on business income.