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Child 2 was not in college, still high school.  Not sure about private school.  Even if distribution went directly to Child 1's college, if Child 2 had private school expenses, could that expense be used against the 1099-Q, even if the 1099-Q didn't pay for it?  The distribution was quite a lot, and the earnings are twice the $10,000 limit. So how to prorate the taxable portion of the earnings and 10% penalty??