If you are self-employed as an independent contractor or sole proprietor or you have single member LLC that has not incorporated you enter your income and expenses on Schedule C which is included in the TurboTax Premium online edition - https://turbotax.intuit.com/personal-taxes/online/premium/
Or the you can use any of the TurboTax desktop editions, for Windows or Mac - https://turbotax.intuit.com/personal-taxes/cd-download/
If your business is a Multi-member LLC, a Partnership, a C Corporation or an S Corporation then you will need the TurboTax Business Edition. The Business Edition can only be installed on a Windows based personal computer. The Business Edition cannot be used for a personal tax return, Form 1040
Go to this TurboTax website for the Business Edition - https://turbotax.intuit.com/small-business-taxes/cd-download/
