Since you have already filed the return, you must wait until the IRS either accepts or rejects the original tax return before you can amend.
Once your original return has been accepted (and you have received your refund) or rejected, you can then add the new W-2 to your tax return.
Please see these instructions for amending a return in TurboTax Online: https://ttlc.intuit.com/replies/5567856
Once the return is available for editing, use the instructions below to add the W-2:
Wait for the IRS to push it back, wait for them to accept it, or file an amendment with TurboTax.
Since you have already filed the return, you must wait until the IRS either accepts or rejects the original tax return before you can amend.
Once your original return has been accepted (and you have received your refund) or rejected, you can then add the new W-2 to your tax return.
Please see these instructions for amending a return in TurboTax Online: https://ttlc.intuit.com/replies/5567856
Once the return is available for editing, use the instructions below to add the W-2: