What should I do if my father underreported his TY2020 income when he completed my 22-23 FAFSA last October?

Sorry, glopez, I’m a little slow today, but I think I’m up to speed now and understand your question. I believe you are referring to line 92.e. on the 2022-2023 FAFSA. The entry on that line is derived from several entries on the 2020 1040 tax form, specifically, in the case of IRA distributions, lines 4a and 4b. Did your parents file a joint 1040 for tax year 2020? What are the amounts on 1040 lines 4a and 4b? Did your parents do any IRA rollovers in 2020?