Explore the most popular/best courses after 12th in Commerce such as BCom, BBA, BCA, CA, CS and a range of other professional as well as vocational courses. Also explore best colleges for commerce, entrance exams and cut offs. Explore the best career options with our comprehensive guide on top courses after 12th Commerce. Make informed choices for a successful future. In the following sections, you will find out about top high-salary courses in commerce with maths. 1. Actuarial Science. Actuarial science applies mathematical and statistical methods to assess financial risks and uncertainties. Explore the Commerce Course Landscape: First and foremost, research the diverse courses after 12th Commerce. This includes B.Com, BBA, and unique courses after 12th commerce like Chartered Accountancy (CA) or Company Secretary (CS). Identify Your Passion: Choose a course that aligns with your interests.