Q. Can I claim my contributions to a 529 savings plan on my Virginia taxes?
A. Yes.
There is no federal deduction for making a contribution to a 529 plan. Some states, including VA, 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 more details on how to enter, for VA, see:
https://ttlc.intuit.com/community/state-taxes/discussion/529-educational-investment-plans-are-a-vali...