Common Mistakes When Filling out the FAFSA Application Not Using the Correct Website If you’re asked to provide credit card information, you’re not on the official government website. Not Getting an FSA ID Before Filling Out the FAFSA Form When you register for an FSA ID, you may need to wait up to three days before you can use it to sign your FAFSA form electronically. Inputting Incorrect Information Be careful not to confuse the information between parents and student. Not Signing the FAFSA Form If you don’t sign the form or if it is left incomplete we will be unable to determine your eligibility for financial aid. Download Your Guide(PDF File)