The entire application process, from obtaining initial information to applying for your student visa, should begin 12 to 18 months before you wish to start studying in the United States. It may be possible to complete the process in less than 12 months, but late applicants usually find they have a much more limited choice of institutions, and even more limited chances of receiving financial assistance.

Requesting Application Materials  
Because of the work, and the costs, involved in putting together a good application, most students limit their applications to between four and seven programs. However, you can request information from as many universities as you like, keeping in mind any postage costs and charges for university materials that you may have to pay. 

Registering for the Admissions Tests
If you are planning to enroll at a university in September (fall semester), take any relevant tests no later than January in the same year, and preferably earlier. Find out whether you need to take the GRE General Test, a GRE Subject Test, the GRE Writing Assessment, the GMAT, or some other admissions test.

If English is not your native language, register to take the TOEFL. As with the academic admissions tests, make sure your test results reach universities before their deadline dates. 

Application Form

Application Fee 

Test Score Reporting 

Academic Credentials 

Statement of Purpose 

Recommendation Letters 

Financial Statement 

Deadlines and Submission