What's the real difference between FAFSA and CSS Profile?

Has anyone felt super confused about FAFSA vs CSS Profile? I know I did. When I was figuring out my financial aid options, understanding these forms was a huge hurdle. Basically, FAFSA is required for federal aid, while the CSS Profile is for some private schools and often gives them a more detailed view of your finances. I went with FAFSA first since it’s simpler and then tackled the CSS for schools that required it. If you’re applying to both, make sure to check deadlines, as they can differ!