I'm not specifically familiar with your state software. The following is a "generic" answer.
There is no federal deduction for making a contribution to a 529 plan, so It is not entered in the federal section of TT. Some states allow a deduction on the state return. If your state is one, it will come up in the state interview; usually in the "Here's how (your state) handles income differently" section. For some other states. it’s at credits and taxes.
