1 For example, if you had $800.00 profit from self-employment, you would multiply 800 by .9235. 2  800 x .9235 = 738.80. 3  You would enter 738.80 on line 4 of the Short Schedule SE form. 4  If this amount is less than $400 you do not need to pay self-employment tax.
it is matter composed of organic compounds that has come from the remains of organisms such as plants and animals and their waste products in the environment organic molecules can also be made by chemical reactions that don t involve life
Biomass is the material derived from plants that use sunlight to grow which include plant and animal material such as wood from forests, material left over from agricultural and forestry processes, and organic industrial, human and animal wastes. The energy contained in biomass originally came from the sun.