The Streptococcus bovis/Streptococcus equinus complex includes four major species that all belong to group D streptococci (GDS); this taxonomy was established in 2003 and is summarized in the Table (table 1) [1].
For 2014, the self-employment tax rate is 15.3 percent. The rate is divided into two parts: 12.4 percent for social security and 2.9 percent for Medicare. But as a self-employed individual, you are considered both the employer and the employee, which makes the entire self-employment tax burden yours.
DEFINITION of 'Self-Employment Tax'. Money that a small business owner must pay to the federal government to fund Medicare and Social Security. Self-employment tax is due when an individual has net earnings of $400 or more in self-employment income over the course of the tax year. In any business, both the company and the employee are taxed to pay for these two major social welfare programs.