Extended repayment plans are available if you have total outstanding principal and interest exceeding $30,000. In these cases, you may repay on a fixed or graduated payment schedule for a period not to exceed 25 years. If you have both FFEL and Direct loans, you must meet the $30,000 minimum requirement for each type of loan.
Extended plan monthly payments will be less than under the standard repayment plan. However, you will also pay more interest over the life of the loan because the repayment period is longer.
The Department of Education has on-line calculators to help you estimate payments under the extended and other repayment plans.