State tax filing

I have completely filled in my Federal data. I am obviously missing something though because I look at the $2996 in SS benefits, which is taxable at the federal level but according to GA state law, not taxable. As in none of the $2996 should be taxable according to GA state tax law. So the question is still, for me, why isn't the entire $2996 amount not taxable? Or do I just need to put that in by hand?