Four years ago in 2010, Congress enacted new tax legislation that only recently came into effect. This article briefly discusses two additional U.S. tax regimes arising from such new tax legislation: (i) the 3.8% net investment income tax plus the additional 0.9% Medicare payroll tax; and (ii) the 30% withholding tax under the Foreign Account Tax Compliance Act. These additional tax regimes have the effect of increasing the effective tax rate of individual taxpayers, and creating additional administrative responsibilities for withholding agents with respect to identifying payees, withholding taxes on amounts paid to payees, and reporting payee information to the…