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2026 World Tax Guide | Regional profile (Tax Controversy)

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2027 Edition

General corporate tax

31 firms ranked

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Bär & Karrer

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EY

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Goldblum and Partners

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Lenz & Staehelin

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Niederer Kraft Frey

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Tax Partner

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ADB Altorfer Duss & Beilstein

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Baker McKenzie

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Deloitte

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Walder Wyss

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ajooda AG

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Tax controversy

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Lenz & Staehelin

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Schellenberg Wittmer

5 practice areas

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Tax Partner

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ADB Altorfer Duss & Beilstein

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Baker McKenzie

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Deloitte

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MLL Legal

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Dietrich Baumgartner & Partner Attorneys

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Eptalex

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Transfer pricing

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Deloitte

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EY

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KPMG

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Loyens & Loeff

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PwC

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Tax Partner

6 practice areas

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ADB Altorfer Duss & Beilstein

8 practice areas

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Baker McKenzie

7 practice areas

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Bär & Karrer

6 practice areas

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Homburger

6 practice areas

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Ludwig + Partner

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MME Legal l Tax l Compliance

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PRIMETAX

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Pestalozzi

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Questro International

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Schellenberg Wittmer

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Tax Expert International

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Wenger Plattner

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Aspect Advisory

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Insights editorial only

Direct Tax

Deloitte dominates again at ITR Americas Tax Awards

It was also a memorable night for Galicia, KPMG, Skadden and Pinheiro Neto, all of which scooped major awards at a gala ceremony in New York

Sam Sholli, October 30 2026

London,,Uk,,Oct,10,,2026.,The,Offices,Of,Deloitte,At

A taxing week: (Richard) Houston, do we have a problem?

The former Deloitte UK CEO earned a 45% raise in a year when 1,000 staff reportedly lost their jobs – and the pay gap is only getting bigger

Ed Conlon, October 30 2026

Transfer Pricing

kristine riisberg tp us 2026.jpg

TP ‘matters more than ever’ under pillar two: Deloitte leader

Kristine Riisberg warned that TP decisions can determine top-up tax exposure under pillar two, while global consensus over the rules remains unsettled

Tom Baker, October 28 2026

Direct Tax

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A taxing week: Deloitte should not hide behind its network amid Abramovich allegations

The allegations against Deloitte Cyprus raise uncomfortable questions about how far the big four can distance themselves from misconduct at member firms

Tom Baker, October 23 2026

Direct Tax

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Deloitte Cyprus embroiled in Roman Abramovich tax evasion allegations

The big four firm allegedly reviewed backdated documents and signed off on accounts that removed hundreds of millions of dollars of Abramovich’s assets

Sam Sholli, October 12 2026

Direct Tax

A Taxing Week: Why Deloitte wins big at the ITR Awards (and your firm can too!)

Death, taxes and Deloitte hoovering up trophies at an ITR awards night. Isn’t that the saying?

Sam Sholli, September 25 2026

Awards

ITR Europe Awards

Deloitte, KPMG, DLA Piper and Eversheds Sutherland win headline ITR Europe Awards

It was another banner year for Deloitte, which picked up more awards than any other firm at a gala ceremony held at The Londoner in Leicester Square

Sam Sholli, September 18 2026

Direct Tax

A taxing week: EY allegations suggest big four scandal at all levels

Ethics seems to be playing a subservient role to an entitlement culture borne out of a pervasive ‘revenue at all costs’ mentality at the big four

Sam Sholli, July 03 2026

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Public CbCR: what non-EU groups need to know before filing in Luxembourg

Xavier Sotillos Jaime and Luca Derqui of Deloitte Luxembourg outline the key public country-by-country reporting obligations, filing routes, and compliance considerations for non-EU UPE groups operating in Luxembourg

Xavier Sotillos Jaime, October 16 2026
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Rethinking TP controversy in a time of transformation: certainty, simplification, and scrutiny

Carlos Serrano Palacio, Inka Traeger, and Bernardo Misle of Deloitte introduce the 2026 Deloitte TP Controversy Guide, highlighting the transfer pricing developments, dispute prevention tools, and audit trends reshaping controversy management worldwide

Carlos Serrano Palacio, September 24 2026
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Weighing the risk: US tax reforms driving MNEs to reassess IP models

Jamie Bedford, Henning Scheibe, and Miller Williams Jr. of Deloitte examine how US tax law changes are encouraging multinational enterprise groups to revisit US-centred intellectual property and operating models, and how European tax authorities are responding

Jamie Bedford, September 24 2026

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Aspiration to practicalities: what the 2026 MAP manual means for tax certainty

Alexander Duric, September 24 2026
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Integration, digitalisation, and the arm’s-length principle: rethinking value creation in hospitality

Immacolata Abbamondi, September 24 2026
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When talent crosses borders: navigating transfer pricing challenges amid increasing workforce mobility

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Insights editorial only cont'd

Direct Tax

This week in tax: Judge denies ex-US Supreme Court advocate retrial bid

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This week in tax: Taxand expands UK network with Unity Advisory

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A taxing week: Is Darren Graves the man to up Deloitte’s tax game?

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This week in tax: Deloitte UK appoints tax specialist as CEO

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A taxing week: Big four should clarify their AI strategies, or risk further talent losses

Sam Sholli, March 27 2026
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A taxing week: Deloitte’s culture is about to face a tough test

Ed Conlon, March 06 2026
Podcasts

Taxing Times: introducing ITR’s new monthly podcast

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This week in tax: PwC commences legal battle with boutique consultancy founded by ex-COO

Sam Sholli, February 27 2026