Hi @GeorgeM777, yes, I changed the pre-filled data to be "0" and it changed my state AMT liability. When I changed the field back to the pre-filled data / ISO exercise amount (line 2i of Form 6251), line 10 of my Schedule P reflected that change. I think at this point I realized what the problem was. It might not be a bug per se but a very unclear question as presented in the Enter Other Incentive Stock Options: If you excluded any California stock options (CQSO) proceeds from your income, enter the amount for alternative minimum tax purposes.
Purely based on the question itself, it's easy to think the answer should be either: any proceeds from CQSO or other ISO that wasn't previously entered in federal tax. However, it's actually about the ISO exercise information as listed in line 2i of Form 6251.
I'm still not sure how to best interpret this question, though, and why ISO exercise information is the answer to this question. Could you help explain the intention behind this question? Thank you for your help again.
p.s. I used the downloaded version (Mac) of TurboTax Premier.
