Missed an employee and already filed Federal tax. Do I amend or file this one separate?

[Cindy B]

Daughter filed taxes, but missed one of her W2's. Just found it and we need to know how to get it filed.
I ment - Missed an employer and already filed... Amend or file separate?

 

[Judy]

She'll need to amend her return to show ALL of her W-2's.

 

[v b]

You only file one 1040.
So to fix this, you need to amend using form 1040X.