W-2C forms usually only show the boxes that changed.
So you leave in the original form...and just EDIT the original..and add-in, or change the new information and leave the other boxes alone.
If you've already deleted the original W-2, just re-enter it....changing or adding just the new numbers after that,
................and on the page following the W-2 in the software interview.....there is a selection for "Corrected W-2" about 4/5ths of the way down all the check boxes.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
