After 38 years as a tax professional this is the first time I have prepared an amended return for this type of situation.  The return is finished, no issues there, I am just unsure of what all to send in with it.  I am attaching a complete MFJ 1040 with all of the forms and schedules as the change seemed to affect everything.  Will they want W-2's since I am adding the spouse?  And because two returns are now becoming one do I need to attach the two original MFS filings?  I keep flip-flopping back and forth in mind and would like to know how others handle this situation.  Thanks.