You enter NY SDI in box 14. There'
is a drop down menu on Box 14 of the W-2, and you will see the NY there. Locate it and enter the amount there. It will handled correctly on IRS Sched A and will be disregarded on NY.
Thank you. I did a doubletake when I looked at the hard copyW-2 again and actually saw the SDI in that box (in very small print!). When I entered it that way into Turbotax, it worked.