In GvHD, the donated bone marrow or peripheral blood stem cells view the recipientâs body as foreign, and the donated cells/bone marrow attack the body. There are two forms of GvHD: 1  Acute graft versus host disease (aGvHD).
Self-employment tax is a tax consisting of Social Security and Medicare taxes primarily for individuals who work for themselves. It is similar to the Social Security and Medicare taxes withheld from the pay of most wage earners. You figure self-employment tax (SE tax) yourself using Schedule SE (Form 1040). Social Security and Medicare taxes of most wage earners are figured by their employers.
Self-employed persons pay both the employee and the employer portions of the payroll tax. This is termed self-employment taxes and amounts to 12.4 percent for the Social Security tax and 2.9 percent for the Medicare tax for the 2013 tax year, according to Turbo Tax. Learn more about Income Tax.