Completed taxes last night - missed a w2. I opted to print and mail so forms have not been actually "filed". can I change form at this point or do I need to amend?

[DoninGA]

Since the tax return has not been filed then you can just add the W-2 to your tax return.  You only Amend a tax return after it has been filed and accepted by the IRS or State.

When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.  See screenshot

This will take you back to the 2018 online tax return.

[smw1247]

Did this - seems to go into an "amend" process.

[DoninGA]

When you are back in the 2018 tax return, just click on Federal on the left side of the screen. Then click on Wages and Income.