When is the deadline to pay the interest that has accrued until graduation (i.e., Stafford loans) to avoid that interest being added to the loan principal?
It is always best to call your lender and determine their exact policy and payment due dates; lenders may have different rules in terms of due dates, applying payments and interest capitalization. On your unsubsidized loans, interest accrues on a daily basis in school and is added to the principal when your loan enters repayment. To insure that the payment is received on time, it is best to set up a bill payment option with the lender or your bank.