Does Notre Dame require the CSS Profile and if I completed it recently is it too late to receive financial aid?
That information would be on the school’s website. Did you look there?
Yes, they require the CSS Profile and the FAFSA. If you are currently an undergraduate at Notre Dame you have until the end of April to submit your CSS profile and FAFSA. If you are an admitted Freshman I think you need to have submitted your CSS Profile a couple of months ago