According to the Federal Student Aid Office, a qualifying monthly payment is a payment that you make
- after Oct. 1, 2007;
- under a qualifying repayment plan;
- for the full amount due as shown on your bill;
- no later than 15 days after your due date; and
- while you are employed full-time by a qualifying employer.
For more information, visit https://studentaid.ed.gov/sa/repay-loans/forgiveness-cancellation/public-service#qualifying-payment