When do I have to pay the full tuition??
It depends on the college. Usually you have to pay before classes begin.
Most schools have some sort of tuition payment plan for a fee so that you don’t have to pay the whole amount in one fell swoop. They start before the school year, usually and you finish paying for the term before it is over and then start on the next term.
Otherwise your semester tuition needs to be paid in full by a certain date, usually well before your first day of class. You can often lose your class schedule if you are not paid up or not get to sign up for courses for the following term at those colleges that are s but more lenient. There are usually late fees if you do not pay by certain set dates on the tuition schedule