One other thing I wanted to add. If you end up having some extra money and you want to make some extra payments (during deferment or repayment), check to make sure they are applying it appropriately. The most advantageous interest-wise is to have any money left over after paying any accrued interest applied toward the principal. This means you will accumulate less interest the next month, since it is based on the principal balance. However, lots of companies apply your extra payment as a prepayment for next month's bill. This means you pay a little more in interest. Not good unless you have some extra money now, but aren't sure you will be able to afford payments later (and are too undisciplined to save for the future). If that is the case, your due date gets pushed back, and you may use that as a "skip a payment in the future" card.