If I want to apply Early Decision to a school, but I want to take the October SAT, would I be able to send it in time? The scores come out past the deadline of Nov 1, but could I update the app with the new SAT score?
You should ask the admissions dept. at the college you are considering applying ED to.
@KingHuevos check the websites of the colleges you wish to apply to. Most of the time they tell you when the deadline is for receiving SAT/ACT scores ED/EA/RD application consideration.