Tax evasion in the United States expenditures throughout the tax year. The IRS then compares the increase in net worth and the cash expenditures with the reported taxable income over time in order to determine the legitimacy of the taxpayer's reported income. The net worth method was first used in the case of "Capone v. United States". The cash method was approved in 1989 in "United States v. Hogan". First approved by the Eighth Circuit in 1935 in "Gleckman v. United States", the bank deposit cash expenditure method identifies tax evasion through review of the taxpayer's bank deposits. This method of investigation primarily focuses on whether
UBS tax evasion controversies June 2008, the U.S. Federal Bureau of Investigation made a formal request to travel to Switzerland to probe a multi-million-dollar tax evasion case involving UBS. That same month, a United States Senate panel accused Swiss banks, including UBS and LGT Group, of helping wealthy Americans evade taxes through offshore accounts, and calculated the total cost of this practice as being in excess of US$100 billion annually. The report specifically accused UBS AG and Liechtenstein's LGT Group of allegedly marketing tax-evasion strategies to wealthy Americans. U.S. clients held about 19,000 accounts at UBS, with an estimated US$18 billion to US$20 billion