Thank you for your quick response! Line 39 just says "Tax from tables or alternate tax" so it isn't clear which was used. There are calculations for the Alternative Minimum Tax (which ends up with 0, so nothing entered on line 41), but nothing for Alternate Tax Computation. There is also nothing above Line 39, so I've assumed my answer is "no" whichever way I look at it. It's confusing that the Turbo Tax "Help" popup clearly states the Alternate Tax Computation is different than the Alternative Minimum Tax, but the link for more information takes us directly to the iowa.gov page describing the Alternative Minimum Tax. I suppose I should go look up the Iowa Tax Tables from 2020, to know for sure that my rate is from there. But it seems that Turbo Tax could be more helpful, especially since I filed using Turbo Tax the previous year.
