SSAT Fee Waivers include several valuable benefits that are only available once you register for an SSAT. It is for this reason, you should register for the SSAT as soon as you can confirm a test that works for you.
If you plan to take the SSAT at Home or Prometric SSAT's, you can also register right away even if you decide to schedule later. However, it is important to know that once you register for either of these modes, you cannot switch to another.
For the SSAT Standard or Flex, you must select a specific test date and location when registering.