When we paper file, we send just the 1040X, the "As Originally Filed" pages and the "As Amended" pages for only the pages that have changed. I am needing to do an amended return for a client, who had a previous accountant do the orignal return -- I prepared the return like I always have in the past -- taking some shortcuts for forms that don't change (vehicle and home office expenses). If we efile this return, will all forms go to IRS, including the Sch C and Form 8829, that aren't filled out like the original? It is important we know this for filing amended 1040s for clients that we didn't prepare the original. What forms go to IRS with an amended 1040? All forms? Just the ones with changes?