Child support received in the year in question must be reported. The question is asked as Question 39 on the 2025-26 FAFSA. It may or may not affect aid going forward when it’s reported correctly … that depends on the parent financial situation. Go to the school Net Price Calculator and enter all information with the child support & then without it to see the effect. Hopefully, it doesn’t reduce aid much. Even if it does, though, it needs to be correctly reported.
And please … never allow anyone else to complete your FAFSA.