Thanks for this. I am trying to amend my 2018 return to include the mortgage interest insurance premium deduction and I understand how to fill out the 1040-X. The problem is that the 1040-X also says to attach an updated Schedule A. The 2018 Schedule A does not have a place to claim the mortgage insurance premium as a deduction. Am I supposed to use the 2019 Schedule A to amend my 2018 return?
