How much of a refund will I get if I cancel my SAT registration before the change deadline?

If you cancel your SAT registration before the official change deadline, you do not get your money back in full, you instead pay USD 29. The earlier you cancel relative to that deadline, the smaller your loss.

SAT Cancellation Fee Structure

How to Actually Cancel Your Registration

You cancel entirely through the College Board website by logging into your account and selecting your existing exam date for cancellation. If you plan to reschedule instead of dropping out entirely, you will need to cancel first and then re-register for a new date, paying the applicable fee again.

My Advice

If you know early that you cannot make a test date, cancel immediately rather than waiting. Every day you delay past the full-refund cutoff moves you closer to the higher USD 39 charge.