I (owner of 529) do not report 1099-Q distribution or my son's (beneficiary) Adjusted Qualified Education Expenses on 1040. How does IRS view this distribution, Taxed?

The entire distribution is nontaxable as I have receipts from the school.  Since I do not report amount of distribution from 1099-Q or Adjusted Qualified Education Expenses, how does IRS view distribution?  Since I am owner and not beneficiary of this account, I am afraid after filing my return I will get a letter from IRS explaining this distribution was taxable and they will list tax and penalty I owe.  Is there a way to be proactive from preventing this scenario?