International Tax

Research Theme

International Tax

Low-income countries are more dependent on corporate income tax revenue than richer countries, and at the same time, disproportionately affected by multinational tax avoidance. Our research on this theme investigates ways in which developing countries can protect their tax bases, including through simplified transfer pricing methods and improved tax treaty policies. It also examines the challenges and opportunities developing countries face from their participation in international tax negotiations.

ICTD has also been closely following the developments around the UN Tax Convention. Check out our latest research and analysis here.

International Tax

Led By

International Tax Library

Report

Taxing Smarter: Advancing Reform Through Research and Partnership

July 2026

Journal Article

Relieving Double Taxation on Cross-Border Services: A Comparative Analysis of Major Exporting Countries

July 2026
Frederik Heitmüller, Aisha Aize Isa, Florian Dierich, Yvette Nakibuule Wakabi

Research in Brief

Global Rules, Local Realities: Lessons from the Global South on International Tax Standards

June 2026
Martin Hearson, Frederik Heitmüller, Florian Dierich

Working Paper

Assessing Nigeria’s Alignment with International Tax Standards: Adoption, Implementation, Relevance and Impact

June 2026
Marie-Louise Aren

Working Paper

Global Rules, Local Realities: Lessons from the Global South on International Tax Standards

June 2026
Martin Hearson, Frederik Heitmüller, Florian Dierich

Research in Brief

From Commitment to Effective Utilisation: Evaluating Nigeria’s Implementation of Tax Standards for Exchange of Information

May 2026
Bala Dahiru Abdullahi, Bilal Hamza Imam

Working Paper

From Commitment to Effective Utilisation: Evaluating Nigeria’s Implementation of Tax Standards for Exchange of Information

May 2026
Bala Dahiru Abdullahi, Bilal Hamza Imam

Journal Article

AfCFTA and Revenue: Navigating Outstanding Fiscal Issues and Legal Framework to attain Agenda 2063

December 2025
Mbakiso Magwape

Working Paper

Evaluating Kenya’s Experience with International Tax Standards: Adoption, Suitability, and Effectiveness

December 2025
Daisy Ogembo

Working Paper

Global Rules, Local Challenges: Peru’s Adoption of International Tax Standards

December 2025
Katia Toledo Ruiz

Working Paper

Implementation of International Tax Standards in Zambia

December 2025
Kennedy Munyandi

Working Paper

Taxing Choices: Reconciling Global International Tax Standards with Pakistan’s Domestic Tax Realities

December 2025
Muzammal Rasheed

Virtual

7 July 2026 – 14:00

•

Timezone: Europe/London

This webinar launches the ‘Comparative Perspectives on International Tax from the Global South’ project, started by the International Centre for Tax and Development (ICTD), in 2024. The project examines how governments in seven countries — Ghana, Kenya, Nigeria, Pakistan, Peru,

Virtual

29 May 2026 – 13:00

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Timezone: Europe/London

The panel will evaluate current instruments and frameworks, their merits, and their limitations in order to contribute to the development of an exchange of information regime that is inclusive and universal.

Virtual

17 March 2026 – 14:00

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Timezone: Europe/London

This webinar will give you a clear picture of where things stand and what comes next on the UN Tax Convention Protocol 1 on cross-border services taxation.

Virtual

11 February 2026 – 18:15

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Timezone: Europe/London

ICTD Associate Postdoctoral Fellow Frederik Heitmüller will be speaking at a panel about the tax dispute resolution under the UN Framework Convention on International Tax, hosted by the International Institute for Sustainable Development (IISD).

Completed

Effective Tax Rates of Multinational Enterprises in Low- and Middle-Income Countries: Evidence from Country by Country Reporting

Start date: 20/11/2019

Completed

Taxing international shipping in Africa: the source taxation alternative

Start date: 17/10/2019
Frederik Heitmüller
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Associate Postdoctoral Fellow
Catherine Ngina Mutava
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Research Affiliate
Hannelore Niesten
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Associate Postdoctoral Fellow
Jalia Kangave
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Associate Research Fellow
Michael Durst
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Research Affiliate
Mick Moore
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Research Fellow & Publications Editor
Headshot of Mustapha Ndajiwo
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Research Affiliate
Rasmus Corlin Christensen
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Research Affiliate
Rhiannon McCluskey
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Research Affiliate
Ronald Waiswa
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Research Affiliate
Sol Picciotto
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Research Affiliate
Suranjali Tandon
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Research Affiliate
Tovony Randriamanalina
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Research Affiliate
Umair Javed
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Research Affiliate
Wilson Prichard
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Associate Research Fellow, ICTD and Chair, LoGRI

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