Canceling Your Scores
If you feel you didn't do your best on the SAT, you can cancel your scores, but you need to act quickly. You must cancel no later than 11:59 p.m. Eastern Time on the Thursday after your test date. (Exception: Students with disabilities who test during the school day have until the Monday one week after the published test date to cancel their score.)
After a request to cancel scores is submitted, scores can’t be reinstated or reported to you or any institutions.
You can cancel your score at the test center or after you leave the test center.