5 FAFSA Mistakes That Can Cost You Thousands

But seemingly small FAFSA mistakes can affect a student’s financial aid eligibility, delay processing, or cause a family to report assets that never needed to be included in the first place.

And FAFSA rules change.

What a parent heard from a friend a few years ago—or even what worked for an older child—may not apply to the FAFSA being completed today.

The goal isn’t to manipulate the FAFSA. It’s to report exactly what the form requires—no more and no less.

At Diversified College Planning, we help families understand how the FAFSA applies to their specific financial situation before avoidable mistakes become expensive ones.

FAFSA Mistake #1: Assuming You Make Too Much Money to Qualify for Aid

This may be the most expensive FAFSA mistake of all: not filing it.

Higher-income families sometimes assume the FAFSA is only for low-income households.

That’s not the case.

The FAFSA is used to determine eligibility for federal student aid, and colleges and states may also use FAFSA information when awarding their own assistance.

A family’s income is important, but it isn’t the only factor that can affect the financial aid calculation.

Depending on the applicable formula and circumstances, factors can include:

• Parent income
• Student income
• Reportable parent assets
• Reportable student assets
• Family size
• Marital status
• Certain federal benefits
• Other information required by the FAFSA

Families should also remember that financial aid is broader than the Federal Pell Grant.

Even when a student doesn’t qualify for a Pell Grant, FAFSA information can still matter for other federal, state, and institutional aid programs.

Don’t disqualify yourself before the colleges do.

Read how higher-income families can still qualify for financial aid.

FAFSA Mistake #2: Reporting Assets That Don’t Belong on the FAFSA

One of the easiest ways to create an inaccurate FAFSA is to assume every asset your family owns must be reported.

That’s not how the FAFSA works.

The FAFSA asks for specific categories of reportable assets.

For the 2026–27 FAFSA, reportable assets can include items such as:

• Cash
• Checking and savings accounts
• Certificates of deposit
• Stocks and bonds
• Mutual funds
• Money market funds
• Investment real estate
• Trust funds
• Certain education savings accounts
• Certain businesses and farms that meet the reporting requirements

But several significant assets are excluded.

For 2026–27, the FAFSA rules changed for certain family businesses and farms.

A family-owned business with 100 or fewer full-time-equivalent employees is excluded from FAFSA assets. A farm on which the family resides is also excluded.

That’s a significant change from the immediately preceding FAFSA rules and a perfect example of why families shouldn’t rely on outdated FAFSA advice.

Read FAFSA tips for business owners.

Don’t Report Your Primary Home as a FAFSA Investment

Your family’s principal residence is excluded from FAFSA assets.

If your home is worth $800,000 and you owe $300,000 on the mortgage, you don’t report $500,000 of home equity as a FAFSA asset simply because the home has value.

But that does not mean home equity is irrelevant everywhere in college financial aid.

Some colleges use the CSS Profile or their own institutional methodology when awarding their own money, and those calculations can treat home equity differently.

So the right question isn’t:

“Does home equity count for financial aid?”

It’s:

“Does this particular college consider home equity under the financial aid methodology it uses?”

Read how colleges can use home equity in financial aid calculations.

Don’t Report Retirement Accounts as FAFSA Assets

Qualified retirement accounts are another common source of confusion.

The value of retirement plans such as 401(k)s, pension funds, noneducation IRAs, Keogh plans, and certain annuities is excluded from FAFSA assets.

That does not mean every transaction involving a retirement account is invisible to financial aid calculations.

For example, taxable retirement distributions can affect income, while qualifying rollovers receive different treatment.

The important point is that families should not simply add the current balance of qualified retirement accounts to FAFSA investments.

FAFSA Mistake #3: Reporting Assets Under the Wrong Person

FAFSA asset ownership matters.

A dependent student’s assets and the parents’ assets do not receive identical treatment under the Student Aid Index formula.

That’s why families need to identify who legally owns an account before deciding where it belongs on the FAFSA.

This is particularly important with:

• Student checking and savings accounts
• UGMA and UTMA custodial accounts
• 529 college savings plans
• Trusts
• Investment accounts

Don’t assume that an account should be reported as a student asset simply because the student’s name is associated with it.

Likewise, don’t move assets between family members simply because someone says it will improve financial aid without first understanding the tax, legal, and financial consequences.

How 529 Plans Are Reported Can Be Confusing

529 plans are one of the most misunderstood FAFSA assets.

For a dependent student, qualified education benefits owned by a parent for that student are generally reported with parent assets when asset reporting is required.

Families should determine the ownership and beneficiary structure of each account and follow the FAFSA instructions applicable to that situation.

That distinction matters because student and parent assets are treated differently in the SAI calculation.

Read what families should know about using a 529 plan for college.

Student Assets Can Have a Bigger Impact Than Parent Assets

For dependent students, the federal SAI formula generally treats student assets more heavily than parent assets.

That makes ownership important.

Consider a simple hypothetical situation:

Illustrative only. Actual SAI treatment depends on the complete FAFSA formula and the family’s circumstances.

The lesson isn’t to start moving money around.

The lesson is to understand ownership and FAFSA classification before submitting the form.

FAFSA Mistake #4: Using the Wrong Income Year—or Trying to “Update” FAFSA Income Yourself

FAFSA income information does not simply ask what you’re earning today.

The FAFSA specifies which tax year must be used.

For example, the 2026–27 FAFSA uses required 2024 federal tax information.

Students and contributors provide consent and approval for required federal tax information to transfer from the IRS into the FAFSA.

Families should not substitute another tax year simply because their financial situation has changed.

But what happens if your 2024 income was $175,000 and your current income has fallen dramatically?

You still complete the FAFSA as instructed.

Then contact the college’s financial aid office and ask about an aid adjustment or professional judgment review based on the family’s changed financial circumstances.

Read how to request a financial aid reconsideration when circumstances have changed.

A Job Loss Doesn’t Mean You Should Change the FAFSA Tax Year

Suppose a parent earned $150,000 during the required FAFSA tax year but was laid off before the student started college.

Replacing the FAFSA income with a lower estimated number is not the proper solution.

Instead:

1. Complete the FAFSA using the information the form requires.
2. Submit the FAFSA.
3. Contact the financial aid office.
4. Explain the change in circumstances.
5. Provide the documentation requested by the college.

A financial aid administrator can then determine whether a professional judgment adjustment is appropriate.

FAFSA Mistake #5: Waiting Too Long to File

Another costly misconception is:

“As long as I submit the FAFSA before the federal deadline, I’m fine.”

That can be a mistake.

The federal FAFSA deadline is not necessarily the deadline families should use for planning purposes.

States and colleges can have their own financial aid deadlines and priority dates.

Some aid programs also have limited funding.

Families should identify the deadlines for:

• The federal FAFSA
• The student’s state
• Each college on the list
• Institutional scholarships
• Honors programs when applicable
• Any additional financial aid forms required by the college

Don’t wait for a student to be accepted before investigating financial aid requirements.

Read our senior-year college planning timeline.

Bonus Mistake: Failing to Complete Every Contributor’s Section

The modern FAFSA uses contributors.

A contributor might include the student, a biological or adoptive parent, the parent’s spouse, or the student’s spouse, depending on the student’s circumstances.

Each required contributor completes their own portion of the FAFSA.

Being a contributor does not mean that person has agreed to pay for college.

But required contributors must provide the necessary information, including consent and approval for federal tax information to be transferred from the IRS.

If required consent and approval are not provided, the student’s eligibility for federal student aid cannot be calculated.

Parents should not avoid participating because they believe completing the FAFSA makes them legally responsible for the student’s college bill. It does not.

Bonus Mistake: Using the Wrong Parent After Divorce or Separation

Divorced and separated families need to pay particular attention to FAFSA parent rules.

The parent reported on the FAFSA isn’t determined simply by:

• Who claimed the student on the tax return
• Who has legal custody
• Who the student prefers to list

The FAFSA has specific rules for determining which parent or parents must provide information.

If that parent is remarried, the spouse’s information may also be required.

Don’t rely on assumptions based on tax dependency or a divorce decree alone.

Read how divorce and custody affect college financial aid.

Bonus Mistake: Confusing FAFSA Rules With CSS Profile Rules

This is a major source of confusion.

A family learns that the primary residence isn’t reported on the FAFSA and assumes no college will consider home equity.

Or a divorced parent determines who contributes information on the FAFSA and assumes the CSS Profile will use the same rules.

Not necessarily.

The FAFSA determines eligibility for federal student aid and is also used by states and colleges for other aid purposes.

Some colleges require the CSS Profile or additional institutional forms when determining eligibility for their own institutional aid.

Those methodologies can ask for financial information that the FAFSA does not.

Read what the CSS Profile is and whether your student may need it.

FAFSA Asset Values Are a Snapshot

Another detail families frequently misunderstand is when FAFSA assets are valued.

Income and assets do not use the same timing rules.

Tax information comes from the required tax year.

Assets generally reflect their current value as of the day the FAFSA is completed.

That means a family shouldn’t simply copy investment balances from an old tax return.

For reportable investments, the FAFSA generally asks for current net worth: current market value minus qualifying debt associated with the investment.

For example, if a reportable investment property is worth $300,000 and has $180,000 of debt secured against that property, its net worth would generally be $120,000 for purposes of the FAFSA asset question.

The primary residence remains excluded from FAFSA assets.

What Happens If You Make a FAFSA Mistake?

Don’t panic.

Some FAFSA information can be corrected after submission.

After the FAFSA is processed, review the FAFSA Submission Summary carefully.

Check for inaccurate information and pay attention to any messages identifying additional action that may be required.

Colleges may also request documentation if information needs to be verified or clarified.

If you discover an error, follow Federal Student Aid and college instructions for making the appropriate correction.

Don’t change accurate information simply because the resulting Student Aid Index is higher than expected.

A Quick FAFSA Review Before You Hit Submit

How Diversified College Planning Helps Families With FAFSA

At Diversified College Planning, our FAFSA work isn’t simply about typing numbers into a form.

We help families understand what the FAFSA is asking, how different financial information is classified, which assets are reportable, and how the FAFSA fits into the broader college financial aid process.

We can also help families understand their Student Aid Index, identify colleges that may require additional financial aid forms, review financial aid offers, and determine whether changed circumstances may justify asking a college for reconsideration.

The objective is straightforward:

Report the information accurately while avoiding mistakes that could unnecessarily hurt your financial aid opportunities.

Explore our college planning services.

The Bottom Line: Don’t Guess on the FAFSA

Most FAFSA mistakes aren’t intentional.

They happen because families misunderstand a question, use outdated advice, report an asset that should have been excluded, classify an account incorrectly, or wait too long to understand the process.

And because FAFSA rules can change from one award year to another, what was correct for an older sibling may not be correct today.

Before submitting the FAFSA, make sure you understand:

• Who needs to contribute information
• Which tax year is required
• Which assets must be reported
• Which assets are excluded
• Who owns each reportable asset
• Which deadlines apply
• Whether the college requires additional financial aid forms

The FAFSA isn’t a place to estimate, assume, or follow advice from five years ago. Answer what the current form asks—and only what it asks.