The Free Application for Federal Student Aid determines eligibility for grants, work-study and federal loans, and many schools and states use it too.
What you need
Create an FSA ID for the student and each parent who must provide information. Gather tax returns, W-2s, bank statements and records of investments. The form uses tax information from two years prior and can transfer it directly from the IRS.
Deadlines and the SAI
The form usually opens October 1 for the following school year. Apply as early as possible since some aid is limited. The Student Aid Index is a number schools use to determine your need; it is not what you will necessarily pay.
Common mistakes
Missing deadlines, leaving fields blank, not listing the right schools and not reapplying each year. Even if you think you will not qualify, apply: many schools use the FAFSA for merit aid decisions.
Try the numbers
Use our College Cost Calculator to see this in practice. With its default example (College type: Public in-state (~$27K / yr); Years until enrollment: 10; Tuition inflation: 4%), it shows total four-year cost: $169,717. Adjust the inputs to match your situation.
Key takeaways
- File as early as possible after October 1.
- Reapply every year.
- Apply even if you think you will not qualify.
This article is for general education and is not personalized financial, tax or legal advice. Rules and limits change; confirm current figures with official sources such as IRS.gov, SSA.gov and StudentAid.gov, or consult a qualified professional. © 2026 FinanzCalc.