@cparke3 - you have time to make a decision on approach; I suspect as more details come out, it'll be easier for you to make an informed decision and you'll come around to my point of view, that the DOE is not going to ask for tax returns, but rather a simple affidavit, if they have any chance of implementing this by Dec 1 (because they need that last month to inform borrowers of their Jan 1 recalculated payment).
good luck!
