Common FAFSA Mistakes to Avoid
Small slips on the FAFSA can cost real money. Here is how to dodge each one.
The FAFSA is easier than it used to be, but a few common mistakes still cost families real money every year. The good news is that each one is simple to avoid once you know about it. Let us walk through them one by one, with a clear fix for each.
1. Not giving FA-DDX consent
This is the biggest one. FA-DDX is the tool that pulls tax data from the IRS. Every contributor must give consent and approval, or the student gets $0 in federal aid. That includes parents who did not file a tax return. One missed checkbox can wipe out all your federal aid.
How to avoid it: Make sure every contributor logs in, finds the consent step, and gives both consent and approval. Double-check this before you submit. If you only check one thing on your FAFSA, check this.
2. Using the wrong tax year
The FAFSA uses the prior-prior year. The 2026-27 form uses your 2024 tax data, not 2025. People often grab the most recent return out of habit and use the wrong year.
How to avoid it: Pull your 2024 return and 2024 income records before you start. With FA-DDX, most tax data comes straight from the IRS, which helps, but you still need the right year on hand.
3. Listing the wrong parent
The FAFSA parent is the parent who gives more financial support. It is not always the parent the student lives with most. Many families list the wrong one and get a wrong result.
How to avoid it: Use the free "Who's My FAFSA Parent?" wizard on StudentAid.gov. Our which parent files page breaks this down in plain words.
4. Sharing a StudentAid.gov account
Each person needs their own account. Logging in as your child, or having your child log in as you, is signing as someone else. That can cause real problems with your form.
How to avoid it: The student makes one account. Each parent or contributor makes their own. The student then invites each contributor by email so everyone signs their own part.
5. Missing the state deadline
State deadlines come much sooner than the federal one. Some are as early as October 1, and much aid is first-come, first-served. Wait too long and the money can run out, even if you meant to file.
How to avoid it: Find your state deadline first and file by it. See our how to apply guide to get moving quickly.
6. Holding money in student-owned or UGMA accounts
Where you keep college money matters. Student assets are assessed at 20%, while parent assets are assessed at up to 5.64%. So money in the student's name counts much harder against you. UGMA and UTMA custodial accounts are the worst place to keep college savings for this reason.
How to avoid it: Be smart about where money sits before you file. Our assets on the FAFSA page explains which accounts hurt you and which do not.
7. Not filing because "we make too much"
There is no income cap on the FAFSA. Skipping it because you think you earn too much is a costly mistake. Filing unlocks loans, work-study, and many state and school aid programs you cannot get any other way.
How to avoid it: File no matter what you earn. It costs nothing and can open doors you did not expect.
8. Reporting assets that no longer count
Some things are simply not reported on the FAFSA. Listing them by mistake can make your need look smaller than it really is.
How to avoid it: Leave these off the FAFSA. Reporting them by accident can raise your numbers and shrink your aid. Note that the CSS Profile is different and does count your home, so do not confuse the two.
One more slip to watch
Many families also rush the review step at the very end. They fill in every screen carefully, then click submit without a final read. That is where a typed number gets entered twice, or a name is misspelled, or the wrong school code sneaks in. A two-minute review at the end catches most of these before they cause a delay.
So before you submit, go back through your answers one more time. Check the names, the tax year, the parent you listed, and the consent boxes. It is far easier to fix a number now than to fix it after a school has already built an offer on it.
The short version
Give FA-DDX consent. Use 2024 tax data. List the right parent. Use separate accounts. Beat your state deadline. Watch where you keep money. File even at high income. Leave off assets that no longer count. Do those eight things, review once at the end, and you have dodged almost every common FAFSA mistake.
See the full how-to guide →Frequently asked questions
Skipping FA-DDX consent. Every contributor must give consent and approval, including non-filers, or the student gets $0 in federal aid.
It uses 2024 tax data. The FAFSA uses the prior-prior year, so do not use your most recent return by habit.
There is no income cap on the FAFSA. Filing unlocks loans, work-study, and state and school aid you cannot get any other way. It costs nothing to file.
Retirement balances, your primary home, a family business with 100 or fewer employees, and a farm you live on are not reported on the FAFSA. Note the CSS Profile does count your home.