State tax filing

I am assuming that you have correctly prepared part-year Ohio and part-year North Carolina state income tax returns.

The Ohio / North Carolina income that is an issue are reported on the same W-2 from the same employer.  Is that correct?

If that is correct, does the one W-2 from the one employer report two lines 15 through 17?  

One line reports Ohio income and Ohio withholding tax.  

The second line reports North Carolina income and North Carolina withholding tax.  See this example.

In this example, the total of $20,000 + $21,000 equals $41,000 which is reported in box 1.

Does your one W-2 from one employer report income and withholding tax in this way or in some other way?  I suspect it is reporting in some other way.