I've already filed and received my return for both Federal and State. I received a 1098 mortgage interest statement in the mail after I filed already so I filled out a 1040X amended form for that new 1098. In addition, I realized I did not deduct my School Taxes on the original submission so I added that to the 1040X as well. I know I need to mail in the 1040X for the Federal return, but do I need to also send the 1098 and my school property tax bill?
