There are four categories of membership of the Institute of Actuaries of Japan. At present, there are nealy 5,000 members. The membership categories are:
A candidate who has passed all subjects of the Qualifying Examinations and who has been approved by the Board of Directors. Fellow is called as "SEI-KAIIN" in Japanese. The requirements for admission as a Fellow of the IAJ are:
- Pass all the required qualification examinations carried out by IAJ and approved by the Board of Directors.
- IAJ decided to require the completion of Professionalism Course for the passer of the Secondary Examination to be approved as a Fellow after 2005.
A Fellow who has been recognized to have made a contribution to actuarial science or related business and who is recommended by the Board of Directors.
A candidate who has passed the first step of the Qualifying Examinations (all of the basic subjects) and who has been approved by the Board of Directors is called an Associate and admitted to start taking the subjects of Secondary Examination. An associate is called as "JYUN-KAIIN" in Japanese.
Students are those who have completed an approved university degree and meet one of following conditions. A student is called as "KENKYU-KAIIN" in Japanese.
- A person who has passed one or more subjects of the first step of the Qualifying Examinations and who has been approved by the Board of Directors.
- A person who has applied for membership and who has been approved by the Board of Directors.
A governmental agency or legal entity which supports the purposes of the Institute, which applies for membership, and which is approved by the Board of Directors.