“그런데 알고보니 와이프가 전에 학교에서 적은 돈이지만 3-4개월 정도 텍스를 띄고 일해서 와이프 이름으로 W2 form 이 날라와 있다는걸 지금에서야 알았습니다.”---> You need to file your amended return as long as you need to report additional income from a W-2 that arrived after you filed your original return; if you need to remove dependents because you were not eligible to claim them, you should file an amendment. y our state tax liability may be affected by a change made on your federal return.