Introduction
The FAFSA uses a formula to figure out how much money your family can pay for college. The result is called your Student Aid Index (SAI). Schools use your SAI to decide how much financial aid you can get, including grants, loans, and work-study. A lower SAI means you may qualify for more aid.
This free FAFSA calculator estimates your SAI for the 2026–2027 school year based on the federal formula. Enter your family's income, assets, and household size to get your estimate in seconds. The tool also shows whether you may qualify for a Federal Pell Grant and breaks down every step of the math so you can see exactly how your number is calculated.
This calculator is for planning purposes only. To get your official SAI, you must complete the FAFSA at studentaid.gov.
How to Use Our FAFSA Student Aid Index (SAI) Calculator
Enter details about your household, parent finances, and student finances below. The calculator will estimate your Student Aid Index (SAI) for the 2026–2027 school year. The SAI tells colleges how much aid you may need.
Household Setup
Independent or Dependent: Choose whether the student is independent or dependent for FAFSA purposes. Students who are 24 or older, married, veterans, or graduate students are usually independent. Veterans may also want to explore the GI Bill Calculator and GI Bill BAH Calculator to estimate education benefits they have earned through military service. Dependent students must report parent information.
Parent Marital Status: Pick the option that matches the parents' current status. Choose married or remarried, single or divorced or widowed, or unmarried but living together. This controls whether you enter income for one or two parents.
State of Legal Residence: Select the state where the family legally lives. This sets the state tax allowance used in the formula.
Number in Household: Enter how many people the parents support, including the student. Count anyone who gets more than half their support from the parents.
Children in College: Enter how many children in the household attend college at least half-time. Do not count the parents.
Parent Financial Information
Age of Oldest Parent: Enter the age of the older parent. Older parents get a larger asset protection allowance.
Filed a Tax Return: Turn this on if the parents filed a U.S. tax return. Turn it off to enter an estimated income instead.
Parent Adjusted Gross Income (AGI): Enter the parents' combined AGI from IRS Form 1040, Line 11. This is the main income number used in the formula. If you need help determining your AGI, try our AGI Calculator.
Parent Income Tax Paid: Enter the total federal income tax paid from IRS Form 1040, Line 24. This amount is subtracted as an allowance. You can use our Income Tax Calculator to estimate this figure if you have not yet filed.
Estimated Parent Total Income: If no tax return was filed, enter the best estimate of all parent income here instead of AGI.
Parent 1 Income Earned: Enter wages, salaries, and tips for the first parent. This is used to calculate payroll taxes and the employment expense allowance.
Parent 2 Income Earned: Enter wages for the second parent if there are two parents in the household. Leave at zero for single-parent households.
Parent Untaxed Income: Enter any parent income not on the tax return. This includes untaxed IRA distributions, tax-exempt interest, and child support received.
Parent Cash, Savings, and Investments: Enter bank balances, stocks, bonds, and real estate that is not the primary home. Do not include retirement accounts or the family home. Our Net Worth Calculator can help you tally these assets.
Business or Farm: Turn this on if the parents own a business or farm. Then enter the net worth of that business or farm.
Aid or Income Adjustments: Turn this on if the parents have special adjustments like education credits, grants included in AGI, or combat pay. Enter the total amount to subtract.
Student Financial Information
Student Filed a Tax Return: Turn this on if the student filed a U.S. tax return. Turn it off to enter an estimated income instead.
Student AGI: Enter the student's own adjusted gross income from IRS Form 1040, Line 11.
Student Income Tax Paid: Enter the student's federal income tax paid from IRS Form 1040, Line 24.
Estimated Student Total Income: If the student did not file a tax return, enter the best estimate of total income here. Our Annual Income Calculator can help you add up earnings from multiple jobs or part-time work.
Student Income Earned: Enter the student's wages, salaries, and tips. The formula protects the first $11,510 of student income.
Student Untaxed Income: Enter any student income not reported on a tax return, such as child support received.
Student Cash, Savings, and Investments: Enter the student's own bank balances and investments. Student assets are assessed at 20%, which is higher than parent assets. Use our Savings Calculator to project how account balances may grow before the aid year begins.
Student Business or Farm: Turn this on if the student owns a business or farm and enter its net worth.
Student Aid or Income Adjustments: Turn this on if the student has special income adjustments to subtract.
Cost of Attendance
Cost of Attendance (COA): Enter the total yearly cost of the college, including tuition, fees, room, board, books, and living expenses. The calculator subtracts your SAI from this number to estimate your financial need. You can check a school's Net Price Calculator page to find its published COA.
Press Calculate SAI to see your results. The output includes your estimated SAI, a Pell Grant eligibility indicator, an aid eligibility scale, a full formula breakdown, and a step-by-step explanation of how your SAI was calculated.
What Is the FAFSA Student Aid Index (SAI)?
The FAFSA stands for Free Application for Federal Student Aid. It is a form students fill out each year to apply for financial aid for college. The U.S. Department of Education uses the information on this form to figure out how much help a student can get. This includes grants, loans, and work-study programs.
When you submit a FAFSA, the government calculates a number called the Student Aid Index (SAI). The SAI replaced the old Expected Family Contribution (EFC) starting with the 2024–2025 school year. Your SAI is not the amount you have to pay for college. Instead, it is a number that colleges use to decide how much financial aid to offer you.
How the SAI Works
A lower SAI means you may qualify for more aid. The SAI can go as low as -$1,500. If your SAI is below $6,206 for the 2026–2027 school year, you may qualify for a Federal Pell Grant, which is free money you do not have to pay back.
Colleges find your financial need with a simple formula: Cost of Attendance (COA) minus your SAI equals your financial need. For example, if a school costs $40,000 a year and your SAI is $10,000, your financial need is $30,000. The school then uses that number to build your aid package, which may include grants, student loans, and work-study.
What Affects Your SAI
The SAI formula looks at several things from both the student and their parents (if the student is a dependent):
- Income — wages, salaries, and other earnings reported on tax returns. Use our Salary Calculator or Take Home Pay Calculator to understand your earnings before entering them here.
- Assets — money in bank accounts and investments (not retirement accounts or your primary home). Retirement funds in a 401(k) or Roth IRA are excluded from the FAFSA asset calculation.
- Household size — how many people the parents support
- Taxes and allowances — payroll taxes, state taxes, and a basic living allowance are subtracted from income before the formula runs
Student assets are assessed at a higher rate (20%) than parent assets (up to 12%). Under the current FAFSA rules, the parent contribution is no longer divided by the number of children in college at the same time.
Dependent vs. Independent Students
A dependent student must report parent financial information on the FAFSA. An independent student does not. You are usually considered independent if you are 24 or older, married, a veteran, an orphan, a ward of the court, a graduate student, or if you have dependents of your own. Independent students have a parent contribution of $0.
Veterans who qualify as independent should also explore the GI Bill Calculator to estimate monthly education benefits, and the VA Loan Calculator if they plan to buy a home while in school. Active-duty families can use the BAH Calculator and Military Pay Calculator to understand how military compensation factors into the FAFSA.
This calculator gives you an estimate of your SAI for the 2026–2027 academic year. Once you know your SAI, consider using our Budget Calculator to plan how you will cover any remaining costs, or explore 529 plan projections if you are saving for a future student. For your official SAI, complete the FAFSA at studentaid.gov.