Hi,

I filed my tax return (1040) and just realized that I have additional income from 1042S due to fellowship.

Do I just amend the 1040 and change the income by adding the additional income coming from 1042, or file a separate 1042 income form?

The thing is, 1040S shows almost all of my gross income is withheld, and 1040 form doesn't have an entry for me to show that. If I amend and file 1040X by adding the gross income of 1042S to 1040 income, it might seem like I have paid less tax than I should have although it was withheld.

Thanks for any help.

Amend the return using Form 1040X.

Show the additional income on the Adjusted Gross Income (Line #1), then add the withheld taxes further down on Line #11.