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 quantity and product-description. When there is ad valorem import duty, the tax base can be reduced through underinvoicing. Misdeclaration of quantity is more relevant for products with specific duty. Production description is changed to match a H. S. Code commensurate with a lower rate of duty. Smuggling is importation or exportation of foreign products by illegal means. Smuggling is resorted to for total evasion of customs duties, as well as for the importation of contraband. A smuggler does not have to pay any customs duty since smuggled products are not routed through customs-tax compliant customs ports, and are therefore not