I really want to find out how to resolve this problem so I can e-file the state tax using Turbo tax next year. Last year one Turbo tax expert advisor told me to e-file federal by just using one state employer ID (box 15) but enter the sum for boxes 16 and 17. Once e-file federal, go back and enter all the w-2's for the state as shown then print out and mail. This year I am encountering the same problem and I see other have posted the same problem (eg. Moly206438).
