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 Lao PDR is criss-crossed by many rivers and streams. The Mekong River flows through 1,835 km of the country from north to south. Rivers and streams provide great potential for hydropower development. Over half of the power potential in the lower Mekong Basin is contained within Laos.