Q. Do we have to pay the whole thing?
A. Yes. Plain City is one of the few cities in Ohio that does not allow any credit for the tax that you paid to your work place city(s).
School District Income Tax (SDIT) is a totally separate tax from City Income Tax (CIT), so the city will not give you a credit for the SDIT you paid, either.
Ohio cities do not have "reciprocity", per se. But, most allow a partial credit (some even a full credit), for tax paid to the work place location city. You just happen to live in one that doesn't.
