Yes, undergraduates are eligible to take the IELTS exam, especially if they are planning to study abroad. Many universities and colleges require IELTS scores as proof of English proficiency for admission into undergraduate programs. The Academic version of the test is most relevant for such candidates. When considering IELTS eligibility, undergraduates should ensure they meet the age and identification requirements, such as having a valid passport. Additionally, it's important to check the score requirements of their target institutions to set realistic goals during preparation.