Casualty Actuarial Society Exam 5

The Casualty Actuarial Society Exam 5 is a core property-casualty actuarial exam covering basic ratemaking and the estimation of unpaid claims. It is commonly taken by candidates progressing toward CAS credentials and by actuarial professionals building skills in pricing and reserving. Exam 5 is relevant across property-casualty insurance settings, including insurers that distribute coverage through banks, but it is not a bank-insurance-specific exam. Candidates should use the official 2027–2028 syllabus to confirm the current learning objectives and exam requirements.

Key Exam 5 topics include ratemaking principles, premium structure, exposure bases, earned premium calculations, and the use of loss and loss adjustment expense data. Candidates also review loss trending, premium on-leveling, and methods for estimating unpaid claims. Preparation involves more than memorizing formulas: you need to identify the right method, apply it consistently, and interpret results in context. Work through calculations regularly, review why each step is appropriate, and use the current CAS syllabus and source materials to guide your study plan.