The program has an error check for the tax forms during the process. Then the program has a review for meshing with the actual filing and that is where you got hung up. MN does not have a portal for filing taxes with them. They require you go through a software company.

Thanks for the reply.  However I ran the error check during the process and no error was found.  It was not found until I paid and was submitting the form.

I have filed MN electronically before and Turbotax provides an e-file for Minnesota,  but that is not my question.  I am trying to delete the Underpayment worksheet  information and Turbotax does not clear the form even when I started the entire process over.  Each worksheet should clear when the MN Tax form is removed. Can this technical issue be resolved soon in an update?  

I have the same issue with the underpayment calculation error.  I don't believe I made an underpayment.  When I complete the form myself using the short method, there should be no underpayment.  I don't know where the program is getting the numbers it uses for the regular method.  Very frustrating.  I guess I'll just print the forms and white out the errors.

I figured out what my issue was.  I had made errors in the dates of my quarterly estimated tax payments.  So it was all my fault.  

This is still a problem.  If you have an underpayment and owe a penalty TurboTax error checks say you can e-file, but when you actually go to try to do it, you get the error that you must file by mail.  This is error comes after Intuit has collected their e-file fee, so you have to go ask for a refund.  TurboTax should not let you try to efile and collect their fee if you can not efile.  This makes me much less likely to use TurboTax next year.