Both your current version of TurboTax Online, Self Employed, and the Premier version, support Schedule K-1, Shareholder's Share of Income, Credits, etc from Form 1120-S.
To see where to enter the Schedule K-1 which you received into TurboTax, please see the following TurboTax FAQ, "Where do I enter a K-1 that I received?":
https://ttlc.intuit.com/replies/3301717