The interest rate on your Direct Subsidized Loan is fixed, and you will not be charged interest while you are enrolled in school at least half time, 在你6个月的宽限期内, 或者在延期期间. You will begin repaying your loan six months after you graduate, 离开学校, 或者低于中场休息时间. The monthly payment and actual length of the repayment period depends on the amount of the loan you owe, 你的利率, and the loan repayment option you chose. While there is no interest on the Direct Subsidized Loan while you are in school, 有一笔原创费.