It depends. I recommend revisiting the input to verify that all the elements affecting the 6251 are adequately split between Taxpayer and Spouse in the program.
Alternatively, click this article for directions provided by TurboTax Expert AmyC for contacting TurboTax regarding this issue.
For a full explanation on Iowa Form 6251, see TurboTax Expert KurtL1's Explanation: What is the Iowa Minimum Tax?
