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.
About the Mekong River in Cambodia & Vietnam. The longest river in Southeast Asia and the 12th longest on earth, the Mekong River journeys over 2700 miles from the Tibetan Plateau to the southeast, through Laos and Thailand to the equatorial flood plains of Cambodia and Vietnam, then finally flows into the South China Sea. Two thousand years of human history flow along the Mekong River.