Tax controversy

Tax has become increasingly connected — governments are collecting and sharing taxpayer information, and tax changes in one jurisdiction can now trigger changes across the globe. The result is that tax controversy is evolving from two-sided disagreement in specific countries into a multidimensional, multi-country dynamic.

The team

Photographic portrait of Luis Coronado
Luis Coronado
EY Global Tax Controversy Leader
Photographic portrait of Jean Pierre Lieb
Jean-Pierre Lieb
EY EMEIA Tax Policy and Controversy Leader
Photographic portrait of Koichi Sekiya
Koichi Sekiya
EY Japan Tax Policy and Controversy Leader

What EY can do for you

Businesses must act so that their people, policies and systems are keeping pace. They need a line of sight into the issues and the potential for future tax controversy as well as a centralized global strategy. Should disagreements arise, having resources that can act as a “bridge” between the tax authorities and the company is essential.

Take a look at our insights, including leading practices on implementing a globally integrated approach to tax controversy management.

2023 Tax Risk & Controversy Survey

The 2023 EY Tax Risk and Controversy Survey finds that strong tax governance, improved data capabilities and obtaining greater tax certainty can help the tax function provide more long-term value to their organization.

Find out more
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The team

Luis Coronado

EY Global Tax Controversy Leader
Vast cross-border experience. Well-versed in international tax. Thought leader in tax policy and controversy.
Singapore, SGP

Jean-Pierre Lieb

EY EMEIA Tax Policy and Controversy Leader
Fascinated with tax policy and mega trends. Passionate arguer in tax controversy. Innovation inspirer.
 

Koichi Sekiya

EY Japan Tax Policy and Controversy Leader
Tax Policy and Controversy Leader for Japan. Loves driving, ski, cruising and wine. Father of two daughters.
Tokyo, JPN

Bryon Christensen

EY US Tax Controversy Leader
Brings a depth of experience to any controversy. Focuses on your long-term priorities.
Seattle, USA

Martin Caplice

EY Asia-Pacific Tax Controversy Leader
Father of 3. Husband. Friend. Mentor. Leader. Listener. Learner.
Sydney, AUS

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