Scale and Oversight of Tax Expenditures in Ireland
Flurim Aliu and
Christian von Haldenwang | 10 February 2026
Fiscal,
Testimonies | Tags:
Ireland,
Parliaments,
Tax Expenditures Tax expenditures are introduced to promote investment, employment, welfare policy objectives, or environmental goals, among others. Yet systematic evaluations remain rare ...
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Tax Expenditure Effectiveness: Tax Expenditures Lab Flagship Report 2025
Christian von Haldenwang,
Agustin Redonda,
Flurim Aliu and
Sofia Berg | 4 December 2025
Fiscal,
Discussion Notes | Tags:
GTED,
GTETI,
Tax Expenditures The present report discusses the determinants and explores the empirical evidence of TE effectiveness. More and more jurisdictions publish TE reports, as shown by the Global Tax Expenditures Database (GTED). In its most recent version (1.3.2), the GTED includes 116 reporting jurisdictions...
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Accelerating Industrial Decarbonisation. The Role of Tax Incentives
Flurim Aliu,
Sofia Berg,
Luke Hatton,
Patrick Lenain,
Agustin Redonda,
Magd Shamashan and
Nirosha Elsem Varghese | 17 November 2025
Fiscal,
Discussion Notes | Tags:
Decarbonization,
Energy,
Industrial Policy,
Tax Expenditures Achieving net-zero targets in industrial sectors will require substantial investment in low-carbon technologies, especially in “hard-to-abate” industries such as steel, cement, and petrochemicals. In this context, tax incentives have emerged as a useful policy instrument ...
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Shedding Light on the Use of Tax Expenditures for Social Spending
Flurim Aliu and
Agustin Redonda | 5 May 2025
Fiscal,
Blog | Tags:
Inequality,
Social Protecion,
Tax Expenditures When we think of government spending on social programmes, we generally picture direct cash transfers, public healthcare, education and subsidized housing. Yet a significant portion of social spending happens outside the traditional budget.
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The Global Tax Expenditures Transparency Index Companion Paper: Revised Version
Agustin Redonda,
Lucas Millan,
Christian von Haldenwang,
Sofia Berg and
Flurim Aliu | 3 December 2024
Fiscal,
Discussion Notes | Tags:
GTETI,
Tax Expenditures,
Transparency The revised Companion Paper includes a description of the methodological adjustments made since the launch of the Global Tax Expenditures Transparency Index (GTETI). Changes do not only affect the internal structure of individual indicators but also the underlying format of the data.
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Beyond the Budget: A Global Perspective on Social Spending Through Tax Expenditures
Flurim Aliu and
Agustin Redonda | 20 November 2024
Fiscal,
Research Papers | Tags:
Inequality,
Social Protection,
Tax Expenditures,
VAT This study underlines the necessity for meticulous evaluation and efficient design of TEs to better align TE regimes with governments' social policy objectives as well as to minimise unintended social or economic consequences.
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Invisible Costs: The Transparency Gap in Japan’s Tax Benefits
Dai Yagihara and
Flurim Aliu | 20 September 2024
Fiscal,
Blog | Tags:
Japan,
Tax Expenditures Tax expenditures include tax credits, exemptions, deductions and other reductions in tax liabilities intended to promote specific policy goals. Japan stands out as one of only two G20 countries, alongside Saudi Arabia, that does not report the cost of such tax benefits in a comprehensive
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The Global Tax Expenditures Transparency Index Companion Paper
Agustin Redonda,
Lucas Millan,
Christian von Haldenwang and
Flurim Aliu | 3 November 2023
Fiscal,
Discussion Notes | Tags:
GTED,
GTETI,
Tax Expenditures The GTETI Companion Paper describes the 5 dimensions and 25 indicators that make up the recently launched index, together with the scope and methodology used.
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Tax Expenditures in An Era of Transformative Change: The GTED Flagship Report 2023
Christian von Haldenwang,
Agustin Redonda and
Flurim Aliu | 2 November 2023
Fiscal,
Discussion Notes | Tags:
GTED,
Tax Expenditures Governments continue to forgo trillions of dollars in tax revenues with a level of opacity that is striking. More than half of the countries worldwide still do not report at all on the costs of tax deductions, exemptions and other benefits...
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CEP and IDOS Release New Data-Driven Insights on Tax Expenditures
Christian von Haldenwang,
Agustin Redonda,
Flurim Aliu and
Lucas Millan | 2 November 2023
Fiscal,
News | Tags:
GTED,
GTETI,
Tax Expenditures Governments continue to forgo trillions of dollars in tax revenues with a level of opacity that is striking. More than half of the countries worldwide still do not report at all on the costs of tax deductions, exemptions, and other benefits.
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