Managing Tax Administration Reform Programs

John Ryan is a distinguished tax administration expert who brings over 40 years of experience from the Australian Taxation Office, where he retired as Deputy Commissioner. His expertise spans tax system development and reforms across multiple regions. As a short-term expert with the IMF's Fiscal Affairs Department for ten years, Ryan has contributed significantly to technical assistance missions and capability development initiatives in Africa, Asia, China, Europe, and the South Pacific. His work has included co-authoring technical guidance notes on core information technology systems and IT strategic planning for tax administrations. Ryan holds a Bachelor of Economics from the University of Sydney, Australia. His contributions to IMF publications have helped shape modern tax administration practices, particularly in developing and implementing technology solutions for revenue authorities. Through his extensive work with the IMF's Fiscal Affairs Department, Ryan has helped numerous countries enhance their tax administration capabilities and modernize their revenue systems.

Graham Harrison is a distinguished expert in tax administration with extensive experience spanning both national and international roles. His career began at the Australian Taxation Office where he served as Deputy Commissioner before joining the International Monetary Fund's Fiscal Affairs Department as a Senior Economist. At the IMF, Harrison has authored significant works on tax administration, including influential papers on VAT refunds and the integration of unified revenue administration systems. His expertise has been instrumental in providing technical assistance to approximately 40 countries across Europe, Africa, Central Asia, the Middle East, and Asia Pacific. Harrison has made notable contributions to international tax policy through his work on VAT systems and revenue administration reform, particularly in developing and transitional economies. His academic foundation includes a BA in accounting and economics from Canberra, Australia, which underpins his practical expertise in global tax administration systems. Harrison's work has been particularly influential in establishing frameworks for VAT administration and developing integrated approaches to tax and social contribution collections.