The TurboTax Business program will only handle your business taxes, for your S corporation. The business version will prepare the 1120S and necessary K-1s. You then need to use your K-1 to file your personal taxes (Form 1040), but you need a personal version of TurboTax to do that. You can use TurboTax Online or if you can use the Home & Business or Premier versions of the desktop program. Click on this link to see your options for filing your individual tax return (Form 1040).