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Guide/06 Paying for College

Financial Aid, FAFSA & CSS Profile

How need-based aid works, what the FAFSA and CSS Profile are, and why filing early matters.

Chapter 18 of 243 min readUpdated September 23, 2026 Preview

Financial aid is an odd process: it runs alongside your applications, but it also starts before them and continues after they're done. It's also the part of the process families most often leave until it's too late.

This chapter explains the two main forms — the FAFSA and the CSS Profile — how need-based aid is calculated, and the timing habits that can make a real difference to what you receive.

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What’s in this chapter

  1. 1Two kinds of aid
  2. 2The FAFSA
  3. 3The CSS Profile
  4. 4File early. Really.
  5. 5What you'll need
  6. 6What an aid package contains