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2027 Edition
General corporate tax
20 firms ranked
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Indirect tax
12 firms ranked
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Transfer pricing
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Linked Reviews
Tax

Deloitte is an internationally reputed tax advisory firm with cross-discipline expertise in M&A, indirect tax, and R&D service lines in cross-border context. Buoyed by an international network, the practice has a vibrant transfer pricing capacity. Applied technology in taxation places the firm at the forefront of innovation across financial services, private equity, e-commerce and the energy sectors. The head of taxation is Lorraine Griffin, assisted by partners Joanne Whelan, Daryl Hanberry, and Matthew Dolan.

Recent highlights include multi-jurisdictional tax diligence, structuring, and post-acquisition integration for an Irish multinational. It also established a branch profit allocation methodology for an insurance firm.

14 results14 results
Death, taxes and Deloitte hoovering up trophies at an ITR awards night. Isn’t that the saying?
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
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
Tom Goldstein’s attempt to overturn his tax conviction was shot down; in other news, Deloitte promoted several tax partners in Italy
The big four spin-off firm becomes Taxand’s second UK member; in other news, Haynes Boone launched a UK tax practice
Following Richard Houston’s switch to the newly formed Deloitte EMEA, Graves has the opportunity to bring Deloitte’s tax practice up to speed with its rivals
Darren Graves will succeed Richard Houston, who is set to lead Deloitte EMEA; in other news, Morgan Lewis hired a three-partner tax team in New York
As recent surveys suggest a disconnect between AI adoption and employee engagement, the big four risk digging themselves into a strategic hole
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