The report Digitalisation and Digital Transformation in Tax Administration: Regional Trends and Insights summarises data from the Inventory of Tax Technology Initiatives (ITTI) (OECD et al., 2025[1]) which was collected through the 2024 Global Survey on Digitalisation. It would not have been possible without the direct support and help of a large number of people, particularly the staff in the tax administrations that provided the data and the examples that form the basis of the publication.
This report was prepared by Sophie Arjevanidze and Oliver Petzold from the OECD Centre for Tax Policy and Administration (CTPA) under the supervision of Claudia Vargas, the Head of the Tax Administration and VAT Division.
The authors are thankful to colleagues from regional partners for their assistance with enlarging the global coverage of the ITTI database by engaging with tax administrations from their region, and for obtaining examples of innovative practices from those administrations, in particular:
Joy Ndubai from the African Tax Administration Forum (ATAF);
Kozue Ichiyama and Yuhei Chiba from the Asian Development Bank (ADB);
Ismaïla Diallo from the Cercle de Reflexion et d’Echange des Dirigeants des Administrations Fiscale (CREDAF);
Esther A.P. Koisin and Rasmita Patro from the Commonwealth Association of Tax Administrators (CATA);
Fransheska López and Raul Zambrano from the Inter-American Center of Tax Administrations (CIAT);
Elena Timofte and Eugenijus Soldatkovas from the Intra-European Organisation of Tax Administrations (IOTA);
Petero Maivucevuce from the Pacific Islands Tax Administrators Association (PITAA);
Gabrielle Jackson from the Australian Taxation Office for her role in supporting the Study Group on Asia-Pacific Tax Administration and Research (SGATAR) during this process; and
Richard Henry Alban Roe and Jonathan Heath, both from the United Kingdom’s HM Revenue and Customs (HMRC) for their role in supporting CATA and IOTA, respectively, during this process.
The authors would also like to thank the work of the wider team at CTPA, in particular the administrative support team within the Tax Administration and VAT Division and the CTPA’s Communications team.