The Chartered Accountancy course is very well known for being extremely tough. So many people often wonder what makes it so difficult. Those who have experience say that every step in the CA course is a challenge, right from CA Foundation to the finals. The most challenging aspect of CA is its massive syllabus, and aspirants have to acquire in-depth knowledge of each subject. Also, the duration is short compared to the vastness of the syllabus. The course is designed to be for 4 to 5 years. But owing to the nature of this course, it does not matter how long it takes to complete the entire course.