The test evaluates four key language skills: Listening, Reading, Writing, and Speaking. IELTS is available in two versions: Academic (for educational purposes) and General Training (for work or migration purposes). The test assesses candidates' ability to understand spoken and written English, as well as their ability to communicate effectively in English. IELTS scores are accepted by universities, employers, immigration authorities, and professional organizations in many countries. Test preparation can include familiarizing oneself with the test format, practicing sample questions, and improving language skills through practice and study.

Test takers receive a score on a nine-band scale, which indicates their level of English proficiency. IELTS scores are valid for two years from the test date. Many resources, including study materials, sample tests, and preparation courses, are available to help candidates prepare for the IELTS test