International Tax Review is part of the Delinian Group, Delinian Limited, 8 Bouverie Street, London, EC4Y 8AX, Registered in England & Wales, Company number 00954730
Copyright © Delinian Limited and its affiliated companies 2023

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement


Axel Haelterman



Freshfields Bruckhaus Deringer

Bastion Tower

Place du Champ de Mars/

Marsveldplein 5

B-1050 Brussels


Tel: +32 2 504 7260



Axel Haelterman is a partner in Freshfields Bruckhaus Deringer's Brussels office and a member of the tax practice group. Axel is a leading tax practitioner in Belgium and has a broad ranging practice, advising corporate clients and financial institutions on Belgian and international tax issues. His practice focuses on financial instruments, bank taxation, international acquisition structures, structured finance and stock options. He also has renowned expertise in high-profile tax litigation. Axel is regularly consulted by the federal and regional governments in Belgium on a variety of issues, including drafting new tax legislation.

He is listed as a leading individual in legal directories such as Chambers, The Legal 500 and International Tax Review's World Tax.

Axel obtained a law degree and a business degree from the Catholic University of Leuven (Belgium), a law degree from Columbia University in New York, as well as a PhD on tax transparency from the Catholic University of Leuven. He is a professor in tax law at the Catholic University of Leuven.


Astrid Pieron



Mayer Brown

Avenue des Arts 52

1000 Brussels


Tel: +32 2 551 5968



Astrid Pieron is a partner with more than 30 years of tax experience, which includes 25-plus years of focus on international taxation.

Astrid launched the Mayer Brown European Transfer Pricing Centre (ETPC) in 2008, which is part of the firm's global transfer pricing practice covering US, Asia and Europe.

As head of the ETPC, Astrid counsels on the transactional aspects of transfer pricing, such as structuring European transfer pricing policy for European groups or US groups operating in Europe. Her related work involves advising on tax aspects of changes in business models as well as on the fiscal optimisation of financial vehicles within multinational enterprises (such as captive insurance companies, treasury centres and investment funds). She also assists clients in deploying transfer pricing documentation that conforms with EU guidelines.

Astrid has also a substantial background in tax controversy matters, including assistance with tax litigation and negotiation of rulings with the tax authorities in Belgium and Luxembourg. Her experience in transfer pricing controversy includes examination, appeals and advanced pricing agreements.

At the policy level, Astrid has been closely involved in the OECD intangibles scoping project (for example, submitting comments, and presenting the matter to Working Party No 6), focusing on post-tax/pre-tax valuation issues and the need for reliable but balanced benchmarking to support transfer pricing considerations. She is also involved with the World Customs Organisation (WCO) providing input on convergence efforts between Customs valuation and transfer pricing. Astrid spoke on those aspects at the Open Day for Trade organised in June 2011 by WCO.

Before joining Mayer Brown's Brussels office in 2007, Astrid practised in Brussels and Luxembourg with two of the world's leading tax and accounting firms: Deloitte (2002 to 2006) and Arthur Andersen (1981 to 2002). Reflecting her multinational practice, she is fluent in French, Dutch and English.


Thierry Afschrift


Victor Dauginet


Caroline Docclo

Loyens & Loeff

Daniel Garabedian


Alain Huyghe

Baker & McKenzie

Jacques Malherbe


more across site & bottom lb ros

More from across our site

COVID-19 and an overworked HMRC may have created the ‘perfect storm’ for reduced prosecutions, according to tax professionals.
Participants in the consultation on the UN secretary-general’s report into international tax cooperation are divided – some believe UN-led structures are the way forward, while others want to improve existing ones. Ralph Cunningham reports.
The German government unveils plans to implement pillar two, while EY is reportedly still divided over ‘Project Everest’.
With the M&A market booming, ITR has partnered with correspondents from firms around the globe to provide a guide to the deal structures being employed and tax authorities' responses.
Xing Hu, partner at Hui Ye Law Firm in Shanghai, looks at the implications of the US Uyghur Forced Labor Protection Act for TP comparability analysis of China.
Karl Berlin talks to Josh White about meeting the Fair Tax standard, the changing burden of country-by-country reporting, and how windfall taxes may hit renewable energy.
Sandy Markwick, head of the Tax Director Network (TDN) at Winmark, looks at the challenges of global mobility for tax management.
Taxpayers should look beyond the headline criteria of the simplification regime to ensure that their arrangements meet the arm’s-length standard, say Alejandro Ces and Mark Seddon of the EY New Zealand transfer pricing team.
In a recent webinar hosted by law firms Greenberg Traurig and Clayton Utz, officials at the IRS and ATO outlined their visions for 2023.
The Asia-Pacific awards research cycle has now begun – don’t miss on this opportunity be recognised in 2023