CAS Exam 8 study materials
CAS Exam 8 study resources

CAS Exam 8 study plan

CAS Exam 8 · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Advanced Ratemaking

  • Map the full Advanced Ratemaking syllabus into a one-page topic tree, tagging each subtopic by expected exam weight and your current confidence level

  • Define and write out from memory the core ratemaking identity linking expected loss cost, expense loading, profit/contingency provision, and permissible loss ratio, then verify against your study material

  • Distinguish loss costs from final rates and explain, in writing, why manual rates must be adjusted for territory, class, and deductible before use

  • Build a formula sheet skeleton organized by subtopic so later weeks append to it rather than restart

Your checkpoint

A one-page topic tree plus a versioned formula sheet with at least 15 entries, each cross-referenced to a syllabus learning objective

Week 2

Advanced Ratemaking

  • Derive the loss ratio, pure premium, and loss cost methods for trended and developed experience, and state the assumptions each method requires

  • Compute on-level premium factors for rate changes and explain how parallelogram vs. policy-year methods change the on-level factor

  • Practice converting incurred losses to an ultimate basis using loss development factors, and identify which development selections are judgmental

  • Work 10+ calculation problems end to end without looking at solutions, then diagnose every error by root cause

Your checkpoint

A worked problem set of at least 10 fully solved ratemaking calculations with an error log classifying mistakes as conceptual, arithmetic, or formula-recall

Week 3

Advanced Ratemaking

  • Explain credibility theory's role in ratemaking and derive the limited-fluctuation credibility standard from its variance argument

  • Contrast classical credibility with Bühlmann and Bühlmann-Straub models, stating what each estimates and when each is preferred

  • Compute credibility-weighted estimates by hand for at least three scenarios with differing exposure volumes

  • Interpret the complement of credibility and justify a defensible complement selection in writing

Your checkpoint

A credibility comparison table covering classical, Bühlmann, and Bühlmann-Straub, plus three hand-computed credibility-weighted rate indications

Week 4

Advanced Ratemaking

  • Derive trend factors for frequency and severity separately, and explain why combining them into a single pure premium trend can mislead

  • Select trend periods correctly under different effective-date and rate-change assumptions, and compute trended loss costs both ways

  • Explain how benefit and limit changes, tort reform, and case reserve strengthening distort historical losses, and adjust for each

  • Assemble a complete indicated rate change from raw experience through trend, development, credibility, and expense loading

Your checkpoint

One end-to-end indicated rate change memo with every intermediate step shown, defensible selections annotated, and a stated final indication

Week 5

Advanced Ratemaking

  • Explain increased-limits factors and deductible credits, and derive each from loss elimination ratios

  • Compute loss elimination ratios for deductible changes and interpret how the ratio behaves as the deductible grows

  • Distinguish excess loss provisions from increased-limits factors and explain when each applies

  • Apply classification ratemaking logic to explain how territory and class relativities are balanced to a manual base rate

Your checkpoint

A deductible and limit adjustment worksheet with at least eight computed factors and a written justification for each selection

Week 6

Advanced Ratemaking

  • Explain experience rating, schedule rating, and retrospective rating, and state which plans suit which account sizes

  • Compute a basic experience modification factor and interpret each component's effect on the result

  • Work retrospective rating premium calculations including the max and min premium constraints

  • Identify the ratemaking treatment of individual risk rating plans within the overall rate indication

Your checkpoint

A one-page decision guide mapping risk characteristics to the appropriate individual risk rating plan, backed by six solved numeric examples

Week 7

Advanced Ratemaking

  • Complete two full-length timed practice exams under exam conditions and record per-question time spent

  • Classify every missed question by subtopic and by failure mode: concept gap, formula recall, misread, or time pressure

  • Re-derive from scratch the formulas you missed, then re-solve those questions without notes

  • Rank remaining weak subtopics by expected point value and build a prioritized repair list

Your checkpoint

A scored practice-exam report with per-subtopic accuracy percentages and a ranked repair list of no more than 10 items

Week 8

Advanced Ratemaking

  • Close every item on the repair list, re-solving each associated problem type until correct twice in a row

  • Compress the formula sheet to a single page of highest-yield relationships and memorize it cold

  • Rehearse written-answer structure for calculation questions: state assumptions, show steps, state the answer with units

  • Run one final timed half-exam in the last three days and taper rather than learn new material

Your checkpoint

A finalized one-page formula sheet plus a repair-list closure log showing two consecutive correct solves for every previously missed problem type

Milestones

Week 2: Solve three trended and developed loss cost problems cold, with no formula sheet, at 90% or better accuracy

Week 4: Produce a complete indicated rate change from raw data to final indication in under 60 minutes with all steps defensible

Week 6: Correctly select and compute the appropriate individual risk rating plan for six of eight varied account scenarios

Week 7: Score at least 70% on a full timed practice exam, with no single subtopic below 50% accuracy

Week 8: Recall the one-page formula sheet from blank paper with no omissions and score 80% or better on the final half-exam