Thank you for the info! Am I right that my former employer would report the corrected income, deferral, and withholding amounts on the corrected W-2? I am also working with the plan administrator to correct the 1099-R info for next year; they mistakenly applied code 8, not code P, to the return of excess deferral. Fortunately I was able to see this online now and get it fixed, rather than being hit with a nasty surprise early next year.
