Gather the information you need to make changes to your FAFSA. You should also be prepared to enter your Social Security number and date of birth, along with your Federal Student Aid personal identification number (PIN) that you created with your initial application.
Go to the FAFSA Follow-Up page on the FAFSA website (see Reference). Select the applicable school year, then click "Next." (If you go through the main FAFSA home page, click on "Make Corrections to a Processed FAFSA" under FAFSA Follow-Up.)
Enter the information required, including your name, date of birth, PIN and Social Security number, to access your FAFSA application. You'll also need to create a new password. Click "Next" to access your application.
Select the tab on the left sidebar related to the information you want to change. For example, if you need to adjust your income, select "Income." Make all the necessary changes, then click "Next."
Review the revised application to make sure it's accurate. Click "Submit" when you are satisfied that you've entered your changes correctly.