@alexsirb Yes, you can use TurboTax Business to prepare and file Form 1120-S. I believe Form 100S has been available in past years' editions of TurboTax Business, but note that, according to the link below, the forms availability table is not complete at this point in time.
https://ttlc.intuit.com/community/tax-planning-and-deadlines/help/irs-forms-availability-table-for-t...
Also note that you purchase the California S corporation package (100S) directly from within the TurboTax Business program; there is no link to purchase it separately.
