I don’t calculate if I owe AMT, never have, never will. If the IRS want’s to do the work and determine I owe it and send me a bill, more power to them. But so far they haven’t...
It takes me about four hours to complete the stupid form. Not an easy task, especially after a few glasses of wine. I have screwed it up three times in the last few years and usually to my advantage, so they send me a larger refund.