I am familiar with flexible spending account for medical expenses where the true up (receipts) is between you and the managing company.
How does 529 true up work? Is it between you and IRS?
If I have 11500 for example in 529, can I ask for distribution now anticipating tuition cost in aug ... the receipts (true up) is verified only by IRS?
I dont want to withdraw x, y, z during the year. I would like to do just one withdrawal for x+y+z.