Will My Teen's Job Hurt Their Financial Aid?

By Jenna Hale · Last checked October 21, 2026

The short answer

Usually it does not. The federal formula that turns FAFSA answers into a Student Aid Index gives a dependent student an income protection allowance of $12,220 for the 2027-28 school year, according to the Department of Education’s 2027-28 SAI and Pell Grant Eligibility Guide and the same figure published in the Federal Register. Income below that line, after the student’s income tax and payroll taxes, contributes nothing.

The Student Aid Index, or SAI, is the number the guide describes as determining a student’s eligibility for certain types of federal aid, including Pell Grants. A teenager’s job only raises it once their income, after those tax allowances, passes the protected amount.

How the formula treats a student’s income

The dependent student formula in the guide adds up three things: the parents’ contribution, the student’s contribution from income, and the student’s contribution from assets. The student income part works like this.

1. Start with the student’s income from their 2025 tax return, mainly adjusted gross income.
2. Subtract any taxable college grants, education credits and Federal Work-Study pay.
3. Subtract allowances: federal income tax paid, a payroll tax allowance (1.45 percent for Medicare and 6.2 percent for Social Security on income from work, per Table A1), and the $12,220 income protection allowance.
4. Whatever is left is available income. Multiply it by 0.50.
5. If the result is negative, it becomes zero.

That last step matters. A teenager earning less than the protected amount does not lower the family’s SAI by having a small income. Their income contribution is simply zero.

There is one more allowance. If the parents’ side of the formula comes out negative, the guide adds that negative amount to the student’s allowances as a positive number, which shelters more of the student’s income.

Which year counts

The 2027-28 FAFSA form can be submitted from October 1, 2026, and it asks about 2025 taxes. A high school senior applying this fall is reporting what they earned two calendar years ago. A junior’s earnings this year, 2026, will land on the 2028-29 form.

If your teenager did not file a 2025 federal return, the form lets an unmarried student skip the student income questions as long as they did not file a territory return and the foreign income and international organization situations do not apply. For tax year 2025, the IRS says a dependent with only earned income had to file if that income was over $15,750. Whether your teenager had to file, and whether they filed anyway for a refund, is covered in does my teen have to file taxes.

Savings are treated differently from income

Here is where a working teenager can raise the SAI without meaning to. The student asset part of the formula takes cash, savings and checking balances, plus the net worth of investments and any business or farm that has to be reported, and multiplies the total by 0.20. There is no protected amount for student assets.

Parent assets go through a gentler route. The guide subtracts an asset protection allowance from the parents’ net worth and converts what is left at 12 percent, before that figure passes through the parents’ own assessment schedule.

The guide also says certain applicants are exempt from reporting assets, based on income and federal benefits received, and points to the FAFSA Specifications Guide for the exact tests. The FAFSA itself works out which questions you see. Do not assume the asset question will or will not appear for your family.

Two details from the form’s notes that catch parents out:

• 529 plans. When a student reports parent information, a 529 college savings plan is reported as a parent asset, not the student’s.
• UGMA and UTMA accounts. These custodial accounts are the student’s assets and must be reported as the student’s, whether or not parent information is on the form.

Retirement accounts, including non-education IRAs, are not counted as investments on the form. That includes a custodial Roth IRA for a teenager.

What this looks like

This is an illustration with made-up numbers, not a real family, and it assumes the parents’ side of the formula is not negative.

Imani worked part time through 2025 and earned $9,000. She filed a return to get back the income tax that had been withheld, and her return shows no income tax owed. Her allowances are about $131 for Medicare, about $558 for Social Security and $12,220 of income protection, which comes to $12,909. Her available income is $9,000 minus $12,909, a negative number, so her contribution from income is zero. The job added nothing to her SAI.

Now suppose she had earned $18,000 and her return showed $225 of income tax. Her allowances would be $225, about $261 for Medicare, about $1,116 for Social Security and $12,220, or $13,822. Available income would be $4,178, and half of that, $2,089, would be added to her SAI.

Separately, if she has $3,000 in her own checking account on the day the FAFSA is filed and she has to report assets, 20 percent of it, $600, is added. The $9,000 of earnings cost nothing in the formula. The $3,000 sitting in her name did.

What I would actually do

I would not tell a teenager to work less because of the FAFSA. For most part-time jobs the formula ignores the income entirely, and the work itself is worth having.

I would pay attention to where the savings sit in the year the form is filed. Spending saved money on something they need for college before filing, or keeping college money in a parent-owned 529, changes how it is counted. Moving money around only to hide it is a different thing. The form asks for current balances, and its notes define net worth as the value as of the day you fill it in.

The FAFSA form itself warns that state and college aid can have earlier deadlines and separate forms. Check with each school’s financial aid office for how they treat student earnings and savings.

For the paycheck side of a first job, see why your teen’s first paycheck is so small and filling out a W-4 as a teenager.