No. You can only file 1 tax return a year and it has to include all of your income from all jobs.  If your return has not been accepted yet, you can sign in and add the W-2.  However, if your return has been accepted, you will need to file an amended return to add the income.  The amendment software won't be ready until next month so you will need to check back then.  If your return is pending, wait to see if it is accepted or rejected.  If rejected, you can add the W-2.  If accepted, you will need to amend it.