Here is how to find out where to mail an amended return form 1040X: <a rel="nofollow" target="_blank" href="
http://www.irs.gov/instructions/i1040x/ch01.html#d0e484">http://www.irs.gov/instructions/i1040x/ch01...>
You need to include any forms or schedules that changed with the amended return, the form 1040X, and any W-2s or other forms that had federal withholding that were added with the amendment.
