Navigate to the SSAT website. You will find that the test is designed for students in the fifth through eleventh grade. Make sure you fall in that category.
Register to take the SSAT by clicking "Register for the Test" which will bring up a page containing test dates and testing options. At the bottom of this page click "Register for SSAT" and either create a new SSAT account, or if you have one, login to your existing account.
Fill in the online form. You will need to select a test date, determine what schools you want to receive your test scores and select a payment method as well. You may register for a test date that places you on standby, but know that you may not get in to take the test.
Click "Test Day Check List" which will tell you what is required the day of the test, what time to arrive and what time the test will end. You will need at least two pencils, an eraser and your admission ticket.
Relax and know you did everything you could to be well prepared.