Reports

This report presents the OECD methodological guidelines for compiling Environmentally Related Tax Revenue accounts. The guidelines are in line with the System of Environmental Economic Accounting and ensure consistency with national and international data sources and manuals. The OECD guidelines are based on those of Eurostat with refinements and additional memo items. First, revenue from greenhouse gas taxes is split into two sub-categories: an energy-related part (recorded as an energy tax) and a non-energy-related part (recorded as a pollution tax). Second, four 'memo items' are introduced to enhance the relevance of the accounts for policy work: (i) certain land taxes, (ii) taxes on oil and natural gas extraction, (iii) taxes on the resource rent and (iv) elevated VAT levied on environmentally related tax bases. The practical application of these guidelines was successfully pilot-tested in 2018-19, and the guidelines were implemented in the 2019 and 2021 rounds of data collection from OECD member and partner countries. The results show that it is feasible to compile the accounts, including the refinements and the additions outlined in this document, across OECD and beyond.

This paper presents an update to the Economic Impact Assessment of Amount A of Pillar One of the Two Pillar Solution to Address the Tax Challenges Arising from the Digitalisation of the Economy. The revised assessment is based on Amount A as detailed in the text of the Multilateral Convention to Implement Amount A of Pillar One. With results extending from 2017 to 2021, the paper details the changes in the design of Amount A as well as updates to the data and methodology of the impact assessment. The paper outlines the impact of Amount A on the allocation of taxing rights and the resulting revenue impacts.

This report presents developments of the work of the Inclusive Forum on Carbon Mitigation Approaches (IFCMA) since its official launch in February 2023.

This document reports on the final output of the OECD microBeRD+ project. Drawing on the outcomes of previous work, this study presents new evidence on the impact of business R&D support policies – tax incentives and direct forms of support – on business R&D investment (R&D input additionality) and the innovation and economic performance of firms (R&D output additionality). The report also provides an exploratory analysis of R&D spillovers.

This report is the eleventh edition of the OECD's Tax Administration Series. It provides internationally comparative data on aspects of tax systems and their administration in 58 advanced and emerging economies. The report is intended to inform and inspire tax administrations as they consider their future operations, as well as to provide information on global tax administration trends and performance for stakeholders and policy makers. The report is structured around nine chapters that examine the performance of tax administration systems, using an extensive data set and a variety of examples to highlight recent innovations and successful practices. This edition also contains an additional chapter that explores progress on the digital transformation of tax administrations. The underlying data for this report comes from the International Survey on Revenue Administration and the Inventory of Tax Technology Initiatives.

Under the Action 13 Minimum Standard, jurisdictions have committed to foster tax transparency by requesting the largest multinational enterprise groups (MNE Groups) to provide the global allocation of their income, taxes and other indicators of the location of economic activity. This unprecedented information on MNE Groups’ operations across the world has boosted tax authorities’ risk-assessment capabilities. The Action 13 Minimum Standard was translated into specific terms of reference and a methodology for the peer review process. The peer review of the Action 13 Minimum Standard has completed five annual reviews in 2018, 2019, 2020, 2021 and 2022. These cover the three key areas under review: the domestic legal and administrative framework, the exchange of information framework, and the confidentiality and appropriate use of Country-by-Country (CbC) reports. This sixth annual peer review report reflects the outcome of the sixth review which considered all aspects of implementation. It contains the review of 136 jurisdictions which provided legislation or information pertaining to the implementation of CbC Reporting.

This is the eighth edition of Tax Policy Reforms: OECD and Selected Partner Economies, an annual publication that provides comparative information on tax reforms across countries and tracks tax policy developments over time. The report covers the tax policy reforms introduced or announced in 2022 in 75 member jurisdictions of the OECD/G20 Inclusive Framework on Base Erosion and Profit Shifting, including all OECD countries. The publication provides an overview of the macroeconomic environment and tax revenue context in which these tax reforms were made, highlighting how governments used tax policy to respond to elevated inflation levels, as well as to address long-run structural challenges.

This working paper presents novel analysis comparing in a consistent way the tax treatment of labour and capital income across OECD countries, through stylised effective tax rates (ETRs). It shows that dividend income and capital gains are generally subject to lower ETRs than wage income at the personal level. In many countries, capital income is also tax-favoured even when considering taxes paid by both firms and individuals, although the gap between labour and capital income taxation tends to be smaller than when considering only personal-level taxes. The gap between ETRs on labour and capital income varies between countries and grows with income levels in some. The paper highlights that differential tax treatment of labour and capital income can affect the efficiency and equity of tax systems.