IAN 300 Webinar: Professional Judgment

The International Actuarial Association (IAA) released International Actuarial Note 300 (IAN 300) – Professional Judgment in Actuarial Practice in September 2025 as an educational resource for actuaries and professionals with an actuarial background.

As the actuarial profession continues to expand across diverse practice areas and shift from a rules-based to a principles-based approach, the need for sound professional judgment has become increasingly important.

In this webinar hosted by the IAA’s Professionalism Committee, speakers introduce the key concepts presented in IAN 300 and explain how professional judgment differs from expert judgment. The Note highlights that professional judgment goes beyond technical expertise, incorporating ethical principles, professional standards, regulatory frameworks, public accountability, and contextual awareness.

The session also explores practical examples of how actuaries apply professional judgment in their work, including:

- Selecting and assessing data and addressing data limitations
- Choosing appropriate methodologies
- Setting assumptions
- Interpreting results
- Communicating outcomes clearly and responsibly

This webinar provides valuable insights into how International Actuarial Note 300 (IAN 300) can support actuaries in applying sound professional judgment in their day-to-day practice.