<p>Harvard recommends that you submit your app by Dec 15 for regular decision although the actual deadline is Jan1. What is the advantage in submitting it by Dec 15? What is the disadvantage if you do it after Dec 15?</p>
<p>I noticed that in the link from Collegeboard.com, Harvard is one of the few colleges that have a ‘priority’ date (the Dec 15 date) along with the standard RD, ED etc.</p>