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  • 14-March-2022


    Taxation of part-time work in the OECD

    The share of part-time employment in total employment has risen in most OECD countries over the past decades. While this is often associated with increased female labour force participation and the desire of many workers to achieve an improved work-life balance, there has been a significant decline in the average earnings of part-time workers relative to full-time workers, as well as an increase in involuntary part-time employment in a number of countries. This paper presents a summary of the taxation of part-time work in OECD countries. It includes new calculations of the effective tax rates on part-time work including those for male and female part-time workers and for different household types. These indicators provide an evidence base for policymakers looking to understand the impact of the tax system on the choice of employment form. The analysis shows that average tax rates for part-time workers are lower than those applied to full-time workers in almost all OECD countries, reducing post-tax gender wage gaps, although marginal tax rates are often higher for part-time workers. These differences between the taxation of part-time and full-time workers are largely due to differences in earnings levels, and therefore to the progressivity of countries’ tax systems, rather than to differences in the tax treatment applied to part-time workers relative to full-time workers.
  • 24-February-2022


    Building an Investment Tax Incentives database - Methodology and initial findings for 36 developing countries

    The OECD has constructed an Investment Tax Incentives database which compiles granular details on corporate income tax (CIT) incentives for investment. This paper presents the methodology used to develop the database and insights from an initial data collection in 36 developing countries. The paper describes a classification to structure quantitative and qualitative information on investment tax incentives across three dimensions: design features, eligibility conditions and their legal basis. The data reveal that tax exemptions are the most widely used CIT instrument across the 36 countries and identifies notable differences between the incentives used within and outside of Special Economic Zones (SEZs). In 80% of countries covered, at least one tax incentive supports an area related to the Sustainable Development Goals.
  • 18-février-2022

    Français, Excel, 1,306kb

    Rapport sur la fiscalité du Secrétaire général de l'OCDE à l'intention des ministres des Finances et des gouverneurs de banque centrale du G20 (Indonésie, février 2022)

    Ce rapport décrit les principaux développements de la réforme fiscale internationale, en particulier les développements concernant l'accord à deux piliers, ainsi que les progrès réalisés en matière de transparence fiscale, et la mise en oeuvre des normes minimales BEPS. Le rapport présente les derniers travaux de l'OCDE visant à établir une initiative pour faciliter le dialogue sur la tarification implicite et explicite du carbone.

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  • 14-February-2022


    Blog post: Why we need greater transparency on how aid is taxed

    By Jorge Moreira da Silva, Director of the OECD Development Co-operation Directorate and Pascal Saint-Amans, Director, OECD Centre for Tax Policy and Administration.

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  • 12-January-2022


    Measuring effective taxation of housing - Building the foundations for policy reform

    This paper measures the effective taxation of housing investments in 40 OECD member and partner countries. The paper derives both Marginal Effective Tax Rates (METRs) and Average Effective Tax Rates (AETRs), which incorporate the stream of income and taxes over the life of the housing investment. The methodology is applied to owner-occupied and rented residential property for investments that are financed with debt or equity. The paper finds that the level and components of housing taxation depend greatly on the investment scenario. Effective tax rates vary substantially depending on the holding period, rate of return, tenure (owner-occupied or rented), financing scenario, and the inflation rate. Effective tax rates do not vary much with the taxpayer’s income and wealth or with the rate of return. The paper finds there is scope to reduce the tax differential between different investment scenarios and strengthen progressivity and horizontal equity.
  • 21-December-2021


    News: Public consultations on the implementation aspects of Pillar One and Pillar Two

    Following the political agreement reached in October 2021 by over 135 countries to address the tax challenges arising from the digitalisation and globalisation of the economy, work on the implementation aspects of reform is underway. See how the 140+ members of the Inclusive Framework on BEPS intend to consult stakeholders during this next phase.

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  • 20-October-2021


    Greening international aviation post COVID-19 - What role for kerosene taxes?

    This paper discusses the contribution that kerosene taxes could make to decarbonising international air travel post COVID-19. Reaching climate neutrality by mid-century requires that all sectors, including aviation, cut emissions strongly. The paper argues that clarity on decarbonisation targets, including through carbon price signals in the form of kerosene taxes, will support an orderly transition in aviation. A gradually increasing tax on kerosene can strengthen the incentives for investment and innovation in clean aviation technologies. Taxing kerosene would also provide implementing countries with tax revenues that could be used to support clean investment and innovation, while addressing competitiveness and equity issues. Where legal obstacles to taxing kerosene exist, these can be overcome by renegotiating the relevant air service agreements.
  • 6-septembre-2021


    PODCAST: Révolution dans la fiscalité internationale : la justice fiscale en action

    Début juillet 2021, plus de 130 pays et juridictions sont parvenus à un accord sur une refonte radicale du système fiscal international. Dans ce podcast, Pascal Saint-Amans nous aide à prendre la mesure de cette avancée fiscale historique, et nous en dessine les contours de manière limpide et pédagogique.

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  • 29-July-2021


    Corporate effective tax rates for R&D - The case of expenditure-based R&D tax incentives

    R&D tax incentives have become a widely used policy tool to promote business R&D. How do they shape firms’ incentives to invest in R&D? This paper contributes a methodology to construct forward-looking effective tax rates for an R&D investment that reflect the value of expenditure-based R&D tax incentives. The new OECD estimates cover 48 countries and consider the case of large profitable firms, accounting for the bulk of R&D in most economies. The results provide new insights into the generosity of R&D tax incentives from the perspective of firms that decide on whether or where to invest in R&D (extensive margin) and the level (intensive margin) of R&D investment. The generosity of the favourable tax treatment of R&D is shown to vary at the intensive and extensive margins, highlighting differences in countries’ strategies to support R&D through the tax system.
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