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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.
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.
Our tax controversy services
Our latest thinking
How strong tax governance builds trust and compliance
Discover how robust tax governance strengthens compliance, builds trust and helps organizations manage risk.
How increased global competition is reshaping tax priorities
The 2025 EY Global Tax Policy and Controversy Outlook explores changing global tax policies and their impact on businesses. Learn more.
The evolving tax administrative cooperation to be on the radar of Private Equity houses
The evolving tax administrative cooperation to be on the radar of Private Equity houses
Why tax governance is key in an era of more tax risk and controversy
Businesses expect the number and intensity of tax audits to double in next two years, the 2023 EY Tax risk and controversy survey finds. Learn more.
Rising tax controversy in Luxembourg underlines need for better tax risk management
According to the latest figures from the Luxembourgish Ministry of Finance, the number of tax controversy cases has increased.
EY Luxembourg hosted the Asset Servicers Tax Roundtable bringing together tax professionals and industry experts to discuss the latest tax developments, compliance obligations, and regulatory updates affecting asset servicers. This edition focused on key areas such as personal tax, VAT updates, legal and compliance challenges, and the growing impact of ESG considerations in tax governance.