<p>According to the Registrar, you only get charged the last quarter if you actually do use it to graduate early.</p>
<p>[Northwestern</a> University Student Financial Services: Undergraduates](<a href=“http://www.northwestern.edu/sfs/tuition/undergrad_tuition.html]Northwestern”>http://www.northwestern.edu/sfs/tuition/undergrad_tuition.html)</p>