When do you switch a student membership to a non-student membership for a professional society Students enjoy discounted memberships to many professional/academic societies. However, membership renewals rarely align with one's degree date. So when do you switch your membership from a student member to non-student membership? I see two obvious possibilities


When your degree is conferred, and you are no longer officially a student


or


The first renewal notice you receive while not being a student


Surprisingly, it seems like very few societies address this issue in their guidelines.
The IEEE (Institute of Electrical and Electronics Engineers) mentions this in the Qualifications for IEEE Membership:

Graduate Student members, upon graduation or upon reaching the total cumulative eight-year limit as a Graduate Student member (whichever occurs first), will be transferred automatically to member grade.

And the change of membership, i.e. Member Grade Elevation:

Student elevation is handled twice a year - in June and August. Once an IEEE Student member or Graduate Student member reaches his or her graduation date (based on information provided by the student), IEEE elevates them to the next grade of IEEE membership for which they qualify.
The first elevation is done in June (Student members or Graduate Student members with graduation dates between 1 January and 30 June).