Since 1968 (by resolution of the 6th INTOSAI Congress in Tokyo) the General Secretariat of INTOSAI is located in Vienna, Austria, at the Court of Audit of the Republic of Austria. It provides central administrative support to INTOSAI, manages the INTOSAI budget, assists the Board and Congresses, facilitates communication among members, and organizes seminars and special studies.

The President of the Court of Audit of the Republic of Austria is the Secretary General of INTOSAI.