I received interest income through an S-Corp in PA, there is no prompt within the PA return to report the interest income, although the return mentions the existence of "PA Schedule A". Where can i find this form within turbotax?
The S-Corp should have issued a Schedule K-1 for you. Box 4 on that form should show the amount of interest income allocated to you.
You will enter that information on the federal level and it will flow to PA state tax return.