Some causes of a high hematocrit include: 1  Dehydration âthis is the most common cause of a high hematocrit. 2  As the volume of fluid in the blood drops, the RBCs per volume of fluid artificially rises; with adequate fluid intake, the hematocrit returns to normal.ome causes of a high hematocrit include: 1  Dehydration âthis is the most common cause of a high hematocrit. 2  Lung (pulmonary) disease âif someone is unable to breathe in and absorb sufficient oxygen, the body tries to compensate by producing more red blood cells. 3  Congenital heart disease âin some forms, there is an abnormal connection between the ...
If you're employed, your employer pays for part of your Social Security and Medicare taxes, but as your own boss, you pay it all. In 2013, the IRS reports the rate is 12.4 percent for Social Security and 2.9 percent for Medicare, making a total of 15.3 percent self-employment tax. Since the IRS requires taxes to be paid at the time the income is earned, you may be subject to a penalty if you do not pay enough by the due date each quarter.
You contribute 6.2 percent of your income. Workers pay 6.2 percent of their earnings into the Social Security system, up to $113,700 in 2013. Employers pay a matching 6.2 percent for each worker. Self-employed workers must contribute 12.4 percent of their income annually. How your benefit is calculated.