I put zeros everywhere, put II in box 12a and left box 12 blank. This gives you the screen to enter in the amount by checking medical waiver box.
"If you entered II in box 12 while entering the W2, there will not be a box to check in uncommon situations. If you leave the box 12 blank, that will pop up. This prevents double entry since the box 12 code II now does the same thing."
