I do n't understand how I can make a XXXX monthly payment and only {$20.00} gets applied towards the interest. I have federal loans as well but at least {$90.00} will pay the principal down. I make my payments 2 weeks before the due date and yet almost all of my monthly payments are going towards interest. Is this correct or am I being ripped off? The amounts every month are really inconsistent even though I pay around the same time every month. It just does n't add up.