When you fill out the FAFSA, you'll receive your Student Aid Index. This number plays a critical role in determining how much financial aid you'll receive from your college. Here's everything you need to know about the SAI so you and your family can feel confident as you navigate the college financial aid process.
What is the Student Aid Index?
The Student Aid Index (SAI) is an index number used to determine a student's eligibility for need-based financial aid. It ranges from -1,500 to 999,999. The lower the number, the greater your financial need. Schools use students' SAIs to determine financial aid packages, which can include federal grants, institutional grants and scholarships, federal loans and more.
How is your Student Aid Index calculated?
The U.S. Department of Education calculates your SAI from the information you provided on your Free Application for Federal Student Aid (FAFSA), including:
- Your financial details
- Parents' financial details if you're a dependent student
- Location
- Family size
- Marital status
The government formula takes your dependency status into account, whether you're a dependent student, an independent student or an independent student with dependents.
Most of your financial information comes from you and your family's federal tax returns from two years before the award year, known as the "prior-prior year." For example, the FAFSA for the 2027-28 academic year, which opens on October 1, 2026, will use your 2025 tax information.
How does the SAI impact your financial aid?
Your SAI directly impacts your financial aid package. Generally, the lower your SAI, the larger your financial aid offers will be.
Your total financial aid package is also impacted by the college's available funds (also known as its endowment). For example, a small school with a limited endowment usually can't offer as much as a big university with a larger pool of money.
In addition, you typically won't receive a package that exceeds the college's cost of attendance (COA). You may receive a $20,000 offer at a $30,000-a-year school and a $30,000 offer at a $60,000-a-year school. While the second college offers more, the first college ends up being the more affordable of the two. Students need to compare financial aid award letters, costs and the quality of education to determine the best deal for them.
You can use the Federal Student Aid Estimator to receive an estimated SAI and federal financial aid eligibility before you submit the FAFSA.
Can your SAI change year-to-year?
Yes, your SAI can change every year. You need to complete the FAFSA each year you're seeking financial aid. If you or your family's assets or income changes during that period, you could have a different SAI the next time you submit the form.
Can you appeal your SAI?
While you can't appeal your SAI, you can let your college know if you feel your SAI doesn't adequately reflect your financial situation.
Since the FAFSA uses tax information from the prior-prior year, it doesn't always provide a current picture of a student's current income or assets. You can talk to your college's financial aid department to explain your extenuating circumstances and discuss your options shortly after submitting your FAFSA. You may also be able to appeal your financial aid award letter.
Some causes of extenuating circumstances include:
- Loss of a job
- Decrease in income at a job
- Death of a parent
- Marriage of the student
- Changes in income due to divorce or separation
- Significant medical expenses
- Termination of child support or alimony payments
- Loss of property or assets in a natural disaster
How to find your SAI
You'll receive your FAFSA Submission Summary (formerly Student Aid Report/SAR) and SAI once the U.S. Department of Education processes your FAFSA. To find it:
- Login to your studendaid.gov account.
- View the FAFSA Submission Summary
- Your SAI is located at the top of the first page.
Online forms are processed in one to three business days, while paper submissions are processed in a week.
You may also see your SAI at the top of your financial aid award letters from colleges.
3 Tips to maximize your financial aid
To increase your chances of receiving a larger financial aid package, follow these three tips:
- Complete the FAFSA as soon as possible. The FAFSA opens on October 1 ahead of the upcoming award year. Submit yours as soon as you can to increase aid, as it's typically first come, first serve. Many state grants and colleges have early priority deadlines.
- Apply even if you don't think you'll receive anything. Even if you didn't receive anything last year, still complete the FAFSA. Income requirements and available programs change often. You might be pleasantly surprised when your financial aid award letter comes. Some schools only consider students for merit aid if they completed the FAFSA, too.
- Keep your school list updated. You can list up to 20 schools on your FAFSA at a time. If you decide to apply to another school, make sure to add it promptly to avoid potential delays or missed funding.
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