The IRS provides more information about this in IRS Publication 542, Corporations. Self Employment Tax. Self-employment tax is social security and Medicare tax for people who are self-employed. This tax applies to those who are sole proprietors with a net profit of $400 or more during the year.
The Mekong River originates at the Lasagongma Spring. The spring is located in the high plateaus of Tibet. It is estimated to be 4,350 kilometers long. 1 person found this useful.
The primary international legal agreement on the Mekong River is entitled Agreement on the Cooperation for the Sustainable Development of the Mekong River Basin, which was signed in Chiang Rai, Thailand on 5 April 1995 between Thailand, Laos, Cambodia and Vietnam.