I'm also interested in learning more about Eligible Federal Loans. What kinds of loans am I eligible for?
The following loans from the William D. Ford Federal Direct Loan Direct Program and the FFEL Federal Family Education Loan Program are eligible for the Graduated Repayment Plan:
So,  What if I have an income that is not taxed or do not have an income at all?
You would have to mark it the online application or paper application and you are not required to supply further documentation.