Plan ahead; start at least three to four months before you wish to enter the university, but 8 to 12 months is best.
Look for schools that offer what you want to study at the level you desire (Undergraduate or graduate level?)
Learn more about the schools; check out school websites, look for information about international students, write or email the admissions office, visit the school and talk to alumni or others who know the university
Narrow the list of possibilities; you may want to limit the list to three or four schools: one that you are sure you can get into, one or two that are strong possibilities and one that may be more difficult to get into
Plan your university budget (Tuition, fees, room and board, books and supplies, computers, transportation, personal expenses)
Check to see if you are eligible for international scholarships and financial aid
Complete applications early and pay attention to deadlines (Be careful!); deadlines may be different for international students
Take required tests (e.g., TOEFL, IELTS, GRE, GMAT, SAT) in time for scores to be reported to the university
If you plan to transfer from a community college to a university, find out which courses will transfer