Frederik Heitmüller

Frederik Heitmüller

This profile is also available in French

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

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

June 2026
Martin Hearson, Frederik Heitmüller, Florian Dierich

Partner PublicationPolicy Brief

The G20’s Crucial Role in an Uncertain Landscape of International Tax Cooperation

November 2025
Suranjali Tandon, Martin Hearson, Frederik Heitmüller, Florian Dierich

Research in Brief

The International Tax Regime Complex: Understanding Change in Global Tax Governance

May 2025
Katharina Kuhn, Lucinda Cadzow, Frederik Heitmüller, Martin Hearson, Tovony Randriamanalina

Research in Brief

Scenarios for Negotiating a UN Framework Convention on International Tax

February 2025
Frederik Heitmüller

In person

8 August 2026 – 14:00

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Timezone: Europe/London

245 Sullivan Street, New York, NY, USA
ICTD Associate Postdoctoral Fellow Frederik Heitmüller will be speaking at a symposium hosted by the New York University, in collaboration with ICTD and UNU-WIDER, on 8th of August, on the sidelines of the fifth negotiation session on the UN Framework

Virtual

7 July 2026 – 14:00

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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

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.