State tax filing

You can find where to enter the South Carolina deduction for contributions to the state 529 plan in the South Carolina interview, at the screen listing items that South Carolina treats differently. See screenshot below:

A state income tax deduction of up to 100% of contributions to a Future Scholar 529 plan is available for South Carolina taxpayers. If you file a resident or non-resident South Carolina state income tax return, you may be eligible for a tax-deductible contribution. See here for more information.