If
you made a mistake that requires a correction (need to file another W-2), you will need to wait until your
return is either accepted or rejected to make the correction. If it is
rejected, you can make the necessary changes and resubmit it. If it is
accepted, you will need to amend the tax return using a form 1040X. Currently,
this form has not yet been released. For
more information on amending a return, please see the TurboTax FAQ below. https://ttlc.intuit.com/replies/3288565