If you need to file a Form 1120 or 1120-S for a corporation, then you need to use TurboTax Business (link below).
Note that TurboTax Business must be installed and run in a Windows environment; there is no online nor Mac version. Further, TurboTax Business can only be used to prepare income tax returns for entities.
https://turbotax.intuit.com/small-business-taxes/
Unless you are at least roughly familiar with general accounting principles and entity income tax return preparation, you are probably better off using a tax professional to prepare an income tax return for a corporation.
