What is the tax threshold (the level of income at which you begin to pay tax) for an entrepreneur or an informal worker?

For an entrepreneur or informal worker the self employment tax threshold is $400. Entrepreneurs, informal workers are part of the grey area of the economy and used to count for gross domestic product (GDP) or gross nationa product (GNP); however, when working an earner is eligible for taxation after earning $400. 

False, type one diabetes is not preventable. only type two is with exercise, healthy eating and overall well health.