<p>USC is known to be very forgiving about this sort of thing. I’ve read on here that they’ve considered applications much later than this. Email your USC admissions counselor as soon as you can just to confirm. I’m fairly certain you’ll hear a positive response. (Do this in addition to calling the Admissions Office - that office is staffed with many students. Your actual USC Admissions counselor is the person in charge of your application, the first to read it, etc. A good person to have contact with - you can find him/her on the website by your high school.)</p>