the plant or animal tissue rich in such molecules, considered as a food source supplying essential amino acids to the body. 3. (formerly) a substance thought to be the essential nitrogenous component of all organic bodies. adjective. 4. Biochemistry. of the nature of or containing protein.
The rate, as well as the amount, you pay changes as the amount of income does. You must file a tax return if you had net earnings from self-employment of $400 or more. This is your total self-employment income less the expenses paid in operating your trade or business, multiplied by 92.35%.
Generally, once you reach a certain income level, the law requires you to file. The amounts are adjusted annually for inflation. The income amounts also are based on taxpayer age on the last day of the tax year. Individuals younger than age 65 must file if they make certain amounts. The earnings threshold amounts go up a bit for older (65-plus) individuals. Regardless of age, the earnings target is the same for married couples who file separate tax returns. In most situations, your age for tax purposes depends on how old you were on the last day of the year.