Form 6251 is scheduled for availability in TurboTax Online on 2/18/2021. See the Forms Availability table linked below.
Federal Individual Forms Availability (intuit.com)
Once a form is released by the IRS, TurboTax has to assimilate the form into their software, then test to see that it is functioning properly.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
