FAFSA EFC (SAI) Explained: How Financial Aid Is Calculated

📅 June 2026⏱️ 7 min read🎓 Education
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Two families with identical incomes can end up with wildly different financial aid offers, and the difference usually traces back to a handful of decisions made years before the FAFSA was ever filed — whose name is on which account, when income was recognized, how savings were structured. None of it is shady. It's just knowing the formula well enough to not accidentally work against yourself.

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What Is EFC / SAI?

The Student Aid Index (SAI), formerly called Expected Family Contribution (EFC), is a number calculated from your FAFSA that colleges use to determine financial need. Need = Cost of Attendance − SAI. A school costing $60,000/year with your SAI of $12,000 shows $48,000 in need. Whether that need is met with grants, loans, or work-study depends on each school's aid policy and budget.

Not all $10,000 are treated equally by the SAI formula $10,000, four different places — four different SAI impacts Parent 529 +$564 SAI Student account +$2,000 SAI Parent income +$2,200-4,700 401(k)/IRA +$0 SAI
Where the money sits matters as much as how much there is.

How SAI Is Calculated

The formula considers: Parent income (largest factor — assessed at 22-47% depending on income level), parent assets (assessed at up to 5.64%), student income (assessed at 50% above $7,040 allowance), and student assets (assessed at 20%). The new FAFSA Simplification Act (effective 2024-25) eliminated the sibling enrollment discount and changed asset treatment rules significantly.

Income vs Assets: Very Different Treatment

Parent income: the primary driver. $10,000 more in parent income can increase SAI by $2,200-$4,700. Parent assets: $100,000 in savings increases SAI by only ~$5,640 — much less than income. Student assets: assessed at 20% — far more punishing than parent assets. $10,000 in a student's name increases SAI by $2,000 vs $564 in parent's name.

💡 Keep college savings in a parent-owned 529 account, not a student account — parent assets are assessed at only 5.64% vs 20% for student assets.

Legal Strategies to Reduce Your SAI

💡 A change worth knowing about if grandparents are helping pay for college: since the FAFSA Simplification Act took effect, distributions from a grandparent-owned 529 plan are no longer reported anywhere on the FAFSA — not as an asset, and not as student income. Under the old rules, a $20,000 distribution from a grandparent's 529 could cut a student's aid by as much as $10,000. That penalty is gone. It's now a genuinely clean way for grandparents to help fund college without touching the student's aid eligibility — though some private colleges using the CSS Profile still ask about it separately.

FAFSA Filing Timeline

FAFSA opens October 1 every year for the following academic year. File as early as possible — many state grants and some institutional grants are first-come, first-served until funds run out. Complete it even if you think your income is too high — you may qualify for unsubsidized federal loans regardless of income, and many schools require FAFSA for merit aid consideration.

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For informational purposes only. Not financial, tax, or legal advice. Consult a qualified professional before making major decisions.