The current SAT, introduced in 2016, costs roughly US$52.50 (up to US$101.5 outside of the United States), excluding late fees. Possible scores on the SAT range from 400 to 1600, combining test results from two 800-point sections: Mathematics and Critical reading and Writing. Taking the SAT or its competitor, the ACT, is required for freshman entry to many, but not all, universities in the United States.
Most colleges in the USA require an undergrad applicant to submit either the SAT or the ACT score. In many other countries, several colleges either accept or require SAT scores for undergraduate admissions. While admissions committees do consider other factors: including grades, transcripts, essays, extra-curricular activities, and contribution to the community, the SAT score is a critical criterion to get into a competitive undergrad school.
In 2016 we got big changes in the SAT. The content and the test structure of the New SAT are very different from those for the SAT administered till January 2016.