      First and foremost, you will need trading capital. To make a living atDay Trading, you will need to determine the income that you need togenerate (after taxes) to support your lifestyle. In the first year oftrading, be conservative, and assume that you will make nothing. (As withany business venture, there is a distinct possibility that you are not cutout for this type of business and will not be successful.) In the secondyear, be conservative again, and plan on an annual return of 25 percent onyour capital (or 50 percent if you are doubling your buying power withmargin). Finally, you will have  to add in the initial start-up cost ofsoftware, hardware, research materials, and supplies. Based on thesevariables, you can determine how much capital you will need to get yourbusiness up and running.