What employers need to know about the 0.9% additional Medicare tax
Abstract: Although it hasn’t garnered as much attention as some of the other provisions in the Affordable Care Act (ACA), the 0.9% additional Medicare tax went into effect Jan. 1, 2013. The tax applies to wages and self-employment income over certain levels and is in addition to the regular 2.9% Medicare tax. While generally only employees are responsible for paying the 0.9% tax, employers are obligated to withhold it. This article points out what employers need to know to avoid penalties for noncompliance.