When it comes to financing your education, one of the most important documents you’ll complete is the Free Application for Federal Student Aid (FAFSA). The FAFSA is your ticket to receiving federal financial aid, including grants, work-study, and loans. However, if filled out incorrectly, it can lead to delays in receiving aid or even limit the amount you qualify for.
To help you navigate the FAFSA process successfully, we’ve put together a guide on the most common mistakes students and parents make when filling out the FAFSA, and how you can avoid them. By avoiding these errors, you can maximize your chances of securing the financial aid you need for college or trade school.
Before diving into the common FAFSA mistakes, let’s talk about the importance of timing. FAFSA forms open each year on October 1st for the upcoming academic year. For example, the 2025–26 FAFSA will be available starting October 1, 2024. While the federal deadline for submission is June 30, 2025, many states and schools have earlier deadlines for financial aid, grants, and scholarships.
1. Leaving Fields Blank
One of the most common and simplest mistakes is leaving fields blank. It might seem harmless to skip a question, but any missing information can delay your application or cause errors in the calculations.
What You Can Do
If a question doesn’t apply to you or you have nothing to report, don’t leave it blank. Always enter “0” or “Not Applicable” where required. This way, the system won’t assume you’ve forgotten to answer a question.
2. Incorrect Income Reporting
Accurate income reporting is critical when completing your FAFSA. Using your W-2 and 1099 forms might seem like enough, but it’s essential to double-check the figures and make sure everything is correct. If the numbers are off, it can affect the amount of financial aid you’re eligible for.
What You Can Do
Compare the income details on your W-2 and 1099 forms with your tax return. The FAFSA automatically retrieves income data through the IRS Data Retrieval Tool. If you manually input your income, ensure you match it with the correct tax information. For the 2025–26 FAFSA, use the income from your 2023 tax return.
3. Failing to Report Untaxed Income
Untaxed income is another area where many students and parents overlook the details. Certain types of income, such as child support, workers’ compensation, and veterans’ benefits, may not appear on your tax return, but they still need to be reported.
What You Can Do
Make sure to report all untaxed income sources. This includes:
- Child support received
- Veterans’ non-education benefits
- Workers’ compensation or disability income
4. Not Including Stepparent Income
If your custodial parent is remarried, their spouse’s income must be included on the FAFSA, even if they aren’t helping to pay for your education. Leaving out this information could lead to inaccuracies that affect the financial aid calculation.
What You Can Do
When filling out the FAFSA, make sure to include both your parent’s and stepparent’s financial information if they are married. If they’ve remarried after you’ve already started college, you may still need to update your application with the new stepparent’s income.
5. Excluding Yourself from Household Size
Sometimes students mistakenly exclude themselves from the household size, assuming they don’t count if they live off-campus or away from home. However, the FAFSA requires you to include yourself if you’re attending college during the award year, even if you didn’t live with your parents in the prior year.
What You Can Do
Always list yourself as part of the household if you are attending college, no matter where you lived last year. This is important for both the financial calculations and the number of people your household supports.
6. Forgetting to Sign the Application
This mistake is more common than you might think. You can fill out the FAFSA perfectly, but if you forget to sign it, the entire form will be rejected.
What You Can Do
- If you’re filing online, make sure you and your parent (if you’re a dependent student) sign using your FSA ID.
- If you’re filing a paper form, both you and your parent must sign it manually.
Tip: If you don’t have an FSA ID, create one in advance so you can easily sign and submit your FAFSA online.
7. Submitting the FAFSA Late
While the federal deadline for FAFSA submission is June 30, many states and colleges have earlier deadlines, especially for grants and scholarships. Missing these deadlines could result in losing out on valuable financial aid.
What You Can Do
File your FAFSA as soon as it opens—ideally in October. The earlier you submit it, the better your chances of receiving aid, particularly if your state or college offers limited financial resources. Also, be sure to check your state’s specific deadlines.
8. Missing State Financial Aid Deadlines
State deadlines are often earlier than the federal deadline, and some states award grants on a first-come, first-served basis. Submitting your FAFSA too late could mean missing out on these grants.
What You Can Do
Check your state’s FAFSA deadline and aim to submit as early as possible. Submitting close to the release date, in December, puts you at the top of the list for state aid and grants.
9. Skimming Questions or Ignoring Directions
It’s tempting to rush through the FAFSA, especially if you’ve completed it before. However, failing to read the instructions carefully can lead to mistakes that may cost you financial aid.
What You Can Do
Take your time to carefully read each question and the instructions provided. If you’re confused or unsure about something, use the FAQ section on the FAFSA website or reach out to your school’s financial aid office for clarification.
10. Not Creating an FSA ID in Advance
Your FSA ID is essential to completing your FAFSA application, making corrections, and electronically signing your form. If you don’t have an FSA ID, you won’t be able to submit your FAFSA online.
What You Can Do
- Create your FSA ID early—both you and your parent (if you’re a dependent student) need separate FSA IDs.
- Visit the FSA website to create yours before you begin filling out the FAFSA.
What You’ll Need to Complete the FAFSA
To help streamline the process, here’s a checklist of the documents you should have ready:
- Personal Information:
- Social Security Number (SSN)
- Driver’s license number (if applicable)
- Permanent address
- Financial Information:
- 2023 federal income tax return (for 2025–26 FAFSA)
- W-2 forms, 1099s, and other income records
- Bank statements
- Untaxed income records
- School Information:
- List of schools you’re applying to
- Federal School Codes for those schools
Tip: Download or print the FAFSA checklist to ensure you have everything ready before you begin.
Maximizing Your Financial Aid
Filling out the FAFSA is not only about avoiding errors; it’s also about maximizing your chances for financial aid.
- Don’t assume you won’t qualify for federal aid. Many schools and even merit-based scholarships require FAFSA information.
- List more than one school. You can list up to 10 schools on your FAFSA form, so don’t limit yourself to just one option.
- Renew your FAFSA each year. Even if you’re a returning student, you need to complete the FAFSA annually to keep receiving federal aid.
Quick Recap of Common Mistakes
| Mistake | What to Do |
| Leaving fields blank | Enter “0” or “N/A” where applicable |
| Incorrect income info | Double-check with tax return, use IRS Data Retrieval |
| Not reporting untaxed income | Include all untaxed sources like child support or veterans’ benefits |
| Skipping stepparent income | Include both custodial and stepparent income if remarried |
| Excluding yourself from household | Always count yourself as part of the household if in college |
| Forgetting to sign | Sign electronically with FSA ID or manually on paper FAFSA |
| Submitting late | Apply early to meet deadlines, especially for state grants |
| Missing state deadlines | Check and meet your state’s FAFSA deadlines |
| Skimming questions | Read all instructions carefully, contact aid office if unsure |
| Not creating FSA ID | Create FSA ID early for easy access and electronic signing |
Final Thoughts
Filling out the FAFSA can be a stressful experience, but it doesn’t have to be. By avoiding these common mistakes and taking your time, you can ensure your application is processed smoothly and that you receive the maximum amount of financial aid you’re eligible for.
Pro Tip: Apply early, double-check all the information, and ask for help if needed. You don’t want to leave free money on the table!
Maximize your opportunities—take the time to do it right, and your financial aid will reflect your efforts.
