Listen to the IAASB's webinars on the challenges and possible actions that the IAASB is exploring it its current Consultation Paper, which is open for public comment until September 12, 2019. 

In Japan on his first overseas trip as IAASB Chair, Tom Seidenstein sat down with the president of the Japanese Institute of CPAs, Aiko Sekine, to discuss Japan’s importance to international audit and assurance standard setting. Check out the interview!

Listen to IAASB member and Task Force Chair, Marek Grabowski, discuss the extended external reporting (EER) Consultation Paper that includes the first part of the draft guidance for practitioners applying International Standard on Assurance Engagements (ISAE) 3000 (Revised), Assurance Engagements Other than Audits or Reviews of Historical Financial Information,&n

Tom Seidenstein is the Chair of the International Auditing and Assurance Standards Board and the co-CEO of the International Foundation for Ethics and Audit, which houses the IAASB and the International Ethics Standards Board for Accountants (IESBA). Since the beginning of 2023, he has served as co-CEO with IESBA Chair Gabriela Figueiredo Dias.

Mr. Seidenstein was first appointed Chair in July 2019 and reappointed twice, most recently in June 2025. His current term runs through December 2027. In this role, and now as co-CEO, he has overseen significant revisions of existing audit standards aimed at enhancing public trust, the initiation of a new workstream aimed at creating a global assurance standard for sustainability, and an updated strategy aimed at increasing the responsiveness of standard setting.

Mr. Seidenstein’s career has spanned both the private sector and international standard setting. Prior to joining the IAASB, Mr. Seidenstein held senior strategic leadership positions at the Federal National Mortgage Association, commonly known as Fannie Mae (Senior Vice President, Strategy, Innovation & Capital Management: 2012-19), and the IFRS Foundation (Chief Operating Officer: 2000-2011).

Additionally, Mr. Seidenstein has served at a consulting organization for not-for-profits, CCS Fundraising (Executive Director: 1999-2000), and the Center for Strategic and International Studies (Special Assistant to the Managing Director: 1995-1997). He has also served as a Trustee of the International Valuation Standards Council (IVSC) and on XBRL International’s Board of Advisors.

A strong believer in volunteer service, Mr. Seidenstein has held or holds volunteer leadership positions serving school education in the USA and the Make-A-Wish Foundation (both UK and international boards). He holds a Master’s in Public Policy from the Kennedy School of Government at Harvard University and an undergraduate degree (cum laude) from the Princeton School of Public and International Affairs at Princeton University.

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• 00:00 to 02:18 Introduction – Willie Botha, Technical Director
• 02:19 to 06:48 ISA 315 (Revised) – Fiona Campbell, Deputy Director and Task Force Chair
• 07:01 to 11:49 ISA 600 – Len Jui, Board Member and Task Force Chair
• 12:03 to 15:15 Agreed-upon Procedures – Eric Turner, Board Member and Task Force Chair
• 15:31 to 21:09 Audit Evidence, Extended External Reporting, Professional Skepticism, IASB Update, IESBA Coordination, Auditor Reporting – Willie Botha, Technical Director
• 21:26 to 22:29 Outgoing Chairman’s Overview – Arnold Schilder, Outgoing Chair
• 22:30 to 23:30 Incoming Chairman’s Overview – Tom Seidenstein, Incoming Chair
• 23:32 to 26:19 Closing remarks and next meeting – Willie Botha, Technical Director