Tax evasion in the United States unlawful gains as income when filing annual tax returns (see e.g., "James v. United States") although such income is typically not reported. Suspected lawbreakers, most famously Al Capone, have been successfully prosecuted for tax evasion when there was insufficient evidence to try them for their non-tax related crimes. Reporting illegal income as earned legitimately may be illegal money laundering. In the United States, the IRS estimate of the 2001 tax gap was $345 billion. For 2006, the tax gap is estimated to be $450 billion. A more recent study estimates the 2008 tax gap in the range of $450 to
Tax evasion rate, the unemployment rate, the level of income and dissatisfaction with government. The U.S. Tax Reform Act of 1986 appears to have reduced tax evasion in the United States. In a 2017 study Alstadsæter et al. concluded based on random stratified audits and leaked data that occurrence of tax evasion rises sharply as amount of wealth rises and that the very richest are about 10 times more likely than average people to engage in tax avoidance. Customs duties are an important source of revenue in developing countries. Importers purport to evade customs duty by (a) under-invoicing and (b) misdeclaration of