It depends. If you already submitted your return you will need to see if they are rejected or accepted. If they are rejected you will be able to log back into your return and add your W-2, and fix the errors that might have caused the rejection.
If your returns were accepted you will need to file an amended return using form 1040X. You should not try to
amend your return until the original return it has been fully processed and you
have received your refund or your payment has cleared.
Amended returns do not “catch up” to your original return and replace them;
they are processed as two separate returns.
Amended returns have to be printed and filed by mail. It can take the IRS
up to 12 weeks or longer to process them. If you are due a larger refund
than on your original return, your amended return should only show the
difference and you will receive a separate check for it. If you owe money
on your amended return, it will show only the new amount owed, you will have to
mail a check with the return. Click here for amending instructions: https://ttlc.intuit.com/replies/3288565
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
