Trade or Business
A trade or business is generally an activity carried on for a livelihood or in good faith to make a profit. The facts and circumstances of each case determine whether or not an activity is a trade or business. The regularity of activities and transactions and the production of income are important elements. You do not need to actually make a profit to be in a trade or business as long as you have a profit motive. You do need, however, to make ongoing efforts to further the interests of your business.
You do not have to carry on regular full-time business activities to be self-employed. Having a part-time business in addition to your regular job or business also may be self-employment.
Example: You are employed full time as an engineer at the local plant. You fix televisions and radios during the weekends. You have your own shop, equipment, and tools. You get your customers from advertising and word-of-mouth. You are self-employed as the owner of a part-time repair shop.