The OECD has published the OECD Secretary-General Tax Report that was presented to G20 Leaders during the Summit held from 9 to 10 September 2023 in New Delhi, India. The report is mainly focused on developments regarding work on the two-pillar international tax package and tax transparency. The report also covers work on indirect tax, capacity building for developing countries, tax and crime, tax administration, tax policy and climate change, and BEPS project implementation. --- Introduction Since my last report to you in November 2022, I am delighted to report that a historic milestone was reached at the 15th Plenary...