What the FAFSA Does
The Free Application for Federal Student Aid collects your family’s financial information and calculates the Student Aid Index (SAI), a number that estimates what your family is expected to contribute toward your education. Schools use that number to figure your need and build a financial aid package that can include grants, work-study, and loans.
The FAFSA also drives state financial aid in most states. Nearly all colleges and universities use FAFSA data to calculate institutional grant eligibility too. Skipping the FAFSA is one of the most expensive financial mistakes a college student can make. Millions of eligible students leave serious grant money on the table every year just because they do not fill out the form. Do not be one of them.
Gather Your Stuff First
You will need several documents and pieces of information. Grab these before you start so you are not hunting mid-form:
Both student and parent FSA IDs (created at StudentAid.gov; allow several days for identity verification). Prior-prior year federal tax returns for student and parents (the 2026-2027 FAFSA uses 2024 tax information). Records of untaxed income (child support received, housing allowances, veterans nontaxable benefits). Current balances for bank accounts, investments, and non-retirement savings. Records of assets, including real estate other than the family home (the primary home value is not counted).
If your family used the IRS Data Retrieval Tool (DRT) in past years, it pulls tax information in automatically. Using the DRT cuts errors and speeds up verification if your application gets pulled for review.
Filling Out the Form, Section by Section
The FAFSA is broken into student information, school selection, dependency status, parent information (for dependent students), and financial information. The dependency status section sets whether you have to report parent income. Dependent students do. Independent students usually do not.
The most important fields: Social Security number, date of birth, state of legal residence, and the schools you want to receive your FAFSA results (you can add up to 20). Schools receive your FAFSA data as an institutional student information record and use it to calculate your aid package.
For the financial sections, report balances and income as of the day you complete the FAFSA (for assets) or as reported on your tax return (for income). Do not include retirement accounts (401(k), IRA, pension) as assets. They are excluded by law and should not be reported.
Common Mistakes to Skip
Using the wrong tax year. The most common error. The FAFSA uses prior-prior year tax data (two years before the academic year, not last year’s tax return). For the 2026-2027 academic year, the FAFSA uses 2024 tax return data.
Reporting retirement account balances as assets. IRAs, 401(k)s, and pension accounts are explicitly excluded and should not be reported.
Listing the school with the best aid offer second or third. For some state aid programs, only the first school listed gets the state aid reporting. Confirm your state’s policies before locking the school order.
After Submitting: The Student Aid Report
Within a few days of submission, you will get a Student Aid Report (SAR) showing the information you provided and your calculated SAI. Read it carefully. If anything is wrong, log back in and fix it before schools finalize aid packages.
If your SAR shows you got picked for verification, the school will ask for extra documentation (tax transcripts, identity verification, and so on) before finalizing your aid. Respond fast. Slow responses delay your aid disbursement.