Registering for the SAT costs $60. If you register after the normal deadline but before the late registration deadline, you will be charged an extra late registration fee of $30.
The ACT registration costs are $63 for the ACT without Writing and $88 for the ACT with Writing. If you miss the regular deadline and sign up for a test date before the late registration deadline, you must pay the normal registration fee in addition to a late registration fee of $36.