Corruption Perceptions Index 2025
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The Corruption Perceptions Index scores 182 countries and territories by their perceived levels of public sector corruption, according to experts and business people.
Publications
From research reports and policy positions to real life stories and toolkits, our publications offer insight into corruption and how to prevent and stop it.
Spotlight publications
Behind the badge: Understanding the roles, reach, and risks of fossil fuel industry participation in UN climate talks
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This analysis explores how fossil fuel interests access and influence UN climate talks, and highlights the risks this poses to transparency and integrity.
Public Loans, Private Gains: Addressing corruption across the debt cycle
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This working paper explores how corruption risks permeate every stage of the sovereign debt cycle – from contracting and management to restructuring.
Missing in action: Where is civic space in UNCAC reviews?
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With civic space being narrowed in many countries, the UNCAC implementation review process must do more to promote an enabling environment for civil society participation in…
More publications
Corruption Perceptions Index 2025
Publication •
The Corruption Perceptions Index scores 182 countries and territories by their perceived levels of public sector corruption, according to experts and business people.
Public debt confidentiality: Separating fact from fiction
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Citizens have a right to know about their country's debt because public debt is the public's debt.
Missing in action: Where is civic space in UNCAC reviews?
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With civic space being narrowed in many countries, the UNCAC implementation review process must do more to promote an enabling environment for civil society participation in…
Into the light: Benchmarking beneficial ownership transparency frameworks across MENA
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Across MENA, countries are reforming ownership transparency frameworks, but sustained progress depends on stronger implementation.
Digital disclosure of political finance in Africa, Asia and the Pacific, and Latin America and the Caribbean
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This study reviews the approaches to digital disclosure of political party and candidate finance in three regions.
Fuelling Delay: How fossil fuel interests shape global climate negotiations
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Fuelling Delay draws on 39 interviews with climate negotiators, UNFCCC observers, and researchers, complemented by field observations from COP29 in Baku and the 2025 Bonn mid-year…
The role of business in fighting impunity and corruption to protect environmental defenders
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The paper offers a roadmap for action, urging businesses, policymakers, and investors to embed integrity beyond compliance and strengthen protections for defenders and…
Chasing Grand Corruption: Hurdles to detection, investigation and prosecution of complex cases across the EU
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Law enforcement authorities across the EU face persistent legal, technical and coordination challenges that hinder effective cross-border corruption investigations.
Regulating Legitimate Interest Access: Measures to ensure meaningful access to beneficial ownership registers for public-interest stakeholders
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Anonymous companies and trusts continue to be vehicles of choice for those seeking to hide and move illicit money.
Public Loans, Private Gains: Addressing corruption across the debt cycle
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This working paper explores how corruption risks permeate every stage of the sovereign debt cycle – from contracting and management to restructuring.
Clean contracting for sustainable development
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Corruption in public procurement harms services and slows progress. This paper calls for clean contracting to boost integrity and effective spending.
Addressing corrupt uses of artificial intelligence
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This working paper covers the corrupt use of AI in the public sector, proposing a definition, manifestations of corrupt use of AI, and a suite of recommendations.
Behind the badge: Understanding the roles, reach, and risks of fossil fuel industry participation in UN climate talks
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This analysis explores how fossil fuel interests access and influence UN climate talks, and highlights the risks this poses to transparency and integrity.
Monitoring Internal Whistleblowing Systems
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A framework for collecting whistleblowing data and reporting on performance and impact.
Annual Report 2024
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In 2024, Transparency International led the fight against corruption around the world.
Barriers to Basics: Corruption and discrimination in education and health services
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This report explores how corruption and discrimination limit access to education and healthcare services.
Opacity in Real Estate Ownership Index: Assessing data transparency and anti-money laundering rules in global markets
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The Opacity in Real Estate Ownership (OREO) Index reveals gaps that make global property markets vulnerable to corrupt money flows.
Corruption Perceptions Index 2024
Publication •
The Corruption Perceptions Index scores 180 countries and territories by their perceived levels of public sector corruption, according to experts and business people.
The Integrity Pact – Harnessing collective action for good governance and business integrity in public procurement
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The publication provides a blueprint for the implementation of the Integrity Pact to safeguard high-value public procurements and investments.
Standards for integrity in political finance: A global policy position
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Corruption enters politics through illicit funds and opaque donations. These backdoors must be closed.
Strengthening Just Energy Transition Partnerships (JETPs): Lessons learned for a Just Energy Transition
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This assessment looks at how Just Energy Transition Partnerships (JETPs) have been performing and could do better in terms of transparency, accountability, and participation.
Business integrity: A toolkit for medium-sized enterprises
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Small and medium-sized enterprises fuel supply chains but face corruption risks. This toolkit helps embed integrity with practical anti-corruption guidance.
Internal whistleblowing systems: Self-assessment framework for public and private organisations
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Transparency International’s new self-assessment framework for internal whistleblowing systems is a valuable tool that helps organisations establish best-practice systems.
COP Co-opted? How corruption and undue influence threaten multilateral climate action
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This report lists a series of recommendations to safeguard future COPs from corruption and undue influence, including mechanisms for improving it.
G20 Position Paper: Financial integrity for sustainable development and inequality reduction
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A lack of high-level engagement on corruption has weakened the clarity and impact of G20 anti-corruption initiatives for sustainable development.
Addressing land corruption in Africa: Recommendations based on the African Union's Land Governance Strategy
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This paper offers vital recommendations to combat land corruption in Africa, grounded in the African Union's Land Governance Strategy for sustainable progress.
Left behind: Corruption in education and health services in Africa
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Corruption in Africa hinders access to health care and education, deepening poverty and inequality.
Annual Report 2023
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In 2023, Transparency International led the global fight against corruption around the world, impacting communities and strengthening anticorruption measures.
Land corruption in West Africa
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This policy paper presents an overview of land corruption in West Africa and provides recommendations for the Economic Community of West African States (ECOWAS) to address it.
Between anti-corruption reform and decline: Examining key actors, strengths and weaknesses in the Western Balkans and Türkiye’s national integrity systems
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Assessments in the Western Balkans and Türkiye reveal a complex mixture of slow progress in strengthening integrity systems, along with democratic backsliding that strongly…
