@NCperson : Thank you for the reply. I should have clarified: I have not yet taken the distribution, but I am considering doing it to help pay for other, non-qualified expenses (e.g., housing & food costs above the university's Cost of Attendance). Before I take the distribution, I just wanted to ensure I'd only be taxed on the earnings of my 529 contributions and not the principal, since I contributed using after-tax dollars.
In terms of the amount I can withdraw, I was trying to play it "safe" and simply not withdraw more than the amount equal to my son's scholarship, which should be sufficient to help me cover the additional non-qualified expenses.
Thank you.
