Two important variables in determining law school admission are your scores on the Law School Admission Test (LSAT) and your grade point average (GPA). LSAT scores are required by virtually all law schools. Obviously, it takes higher scores to get into top ranked schools. Possible LSAT scores range from 120 to 180, with 150 being the median score.
The Law School Admission Council (LSAC) administers the LSAT and helps facilitate the admissions process for virtually all U.S. law schools through its Law School Data Assembly Service (LSDAS) . You can apply online to take the LSAT. The LSAT is administered four times per year (usually in October, December, February, and June).
The application deadline for most schools is in the late Winter. So, if you want to attend law school beginning in the Fall, generally speaking, you must submit your application by January or February of that year. For most students, this means they should begin the application process no later than Fall semester of their senior year.
Consequently, the October LSAT exam date is the most popular, followed closely by the December exam. The February exam is generally taken by students who, for a variety of reasons, are applying late in the process. The June test is popular with students who are studying abroad in the Fall, those who wish to take the exam when they're free from the pressures of their semester's studies, or those who have personal reasons that render the Fall exam dates problematic.
If you are applying for non-loan financial aid, you should apply sooner (i.e. try to take the LSAT in October, December at the latest) rather than later in order to increase your chances of receiving an award. Law school applications for financial aid are usually separate from the application for admission to law school.