If you are self employed or a sole proprietor or a Single Member LLC (But not an S Corp) you File it on Schedule C in your personal 1040 return. Online Self Employed version is only for personal returns with schedule C.
if you need to file a separate Business return like a 1065 or 1120 you need Turbo Tax Business.
The small business program (TT Business) is for 1120 Corporation, 1120S Corp, 1065 Partnership or 1041 Estate/Trust returns and will not do your personal 1040 return. It is a separate program from the Desktop Home & Business program or the Online Self Employed version.
Turbo Tax Business is not available to do online or on a Mac. You can buy the Window's version here. And you can have both TT Business and TT Home & Business (or any personal version) installed on your computer at the same time.
https://turbotax.intuit.com/small-business-taxes
