If you are willing to give SAT test 2017 with Essay the registration cost would be US $54.50 and if you opt out of the Essay, since it is optional, your fee would be $43. For international students taking the test outside US, an extra $49 is added to the registration fees. For SAT subject test, the basic registration fee is $26. Aspirants have to add $26 for language tests with listening and $18 for other tests.