Your federal loan limit for freshman year is $5500.
The CSS Profile and the FAFSA do not give loans. They are financial aid applications that the colleges use to determine their awarding of need based aid.
For Boston University, you will need to complete both of these forms. Accurately…and adhering to the deadline for ED applicants…which is early.
If you are applying for admission fall 2026, you will use 2024 tax year income information. BUT that’s not you…you are enrolling as a freshman 2027, so you will use 2025 tax year information…and that year is not yet completed. The net price calculators are currently being set for students starting in fall 2026. Since that is not you, consider them estimates only. And yes, financial aid awarding policies do change.