I think I paid for 2021 TurboTax last year. How can I find out?
Form 1120-S (to prepare a return for an S corporation) is only available in TurboTax Business.
https://turbotax.intuit.com/small-business-taxes
Did you order a CD or a download?
Check https://accounts-tax.intuit.com/turbotaxdesktop if you ordered from Intuit.