Stafford loans are for undergraduates, graduate and professional students attending school at least half-time. The fixed interest rate for undergraduate Stafford loans first disbursed on or after July 1, 2019 and before July 1, 2020 is 4.53%. The rate for graduate students is 6.08%. Most older loans from before July 2006 have variable interest rates. After 2007, the interest rates are fixed, but change almost every year. The Department of Education web site has information about the fees the government charges when you take out a Stafford loan.