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2026 Edition
General corporate tax
Tier 1
19 firms ranked
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Tier 1

Ferrere
7 practice areas
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Guyer & Regules
6 practice areas
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KPMG
7 practice areas
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PwC
7 practice areas
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Tier 2

Andersen Tax & Legal
7 practice areas
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Deloitte
7 practice areas
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EY
7 practice areas
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Rueda Abadi Pereira Consultores
2 practice areas
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Tier 3

Arcia Storace Fuentes Medina Abogados
2 practice areas
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Bergstein Abogados
6 practice areas
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Brum Costa Abogados
2 practice areas
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Innovation Legal | Tax | Tech
6 practice areas
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Posadas Posadas & Vecino
2 practice areas
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Tier 4

Estudio Kaplan
2 practice areas
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FBM Advisory
6 practice areas
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RSM Unity
5 practice areas
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Other notable

Bragard
3 practice areas
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Hughes & Hughes
2 practice areas
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Vuille Lafourcade
2 practice areas
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Private client
Active
5 firms ranked
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Active

Andersen Tax & Legal
7 practice areas
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FBM Advisory
6 practice areas
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Ferrere
7 practice areas
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Innovation Legal | Tax | Tech
6 practice areas
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KPMG
7 practice areas
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Transactional tax
Tier 1
9 firms ranked
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Other notable

FBM Advisory
6 practice areas
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Tier 1

Andersen Tax & Legal
7 practice areas
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Ferrere
7 practice areas
View profile
Guyer & Regules
6 practice areas
View profile

Tier 2

Bergstein Abogados
6 practice areas
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Bragard
3 practice areas
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EY
7 practice areas
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KPMG
7 practice areas
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PwC
7 practice areas
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Transfer pricing
Tier 1
9 firms ranked
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Tier 1

Andersen Tax & Legal
7 practice areas
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Deloitte
7 practice areas
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Ferrere
7 practice areas
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Guyer & Regules
6 practice areas
View profile

Tier 2

Bergstein Abogados
6 practice areas
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EY
7 practice areas
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KPMG
7 practice areas
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PwC
7 practice areas
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TPC Group
3 practice areas
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Linked Reviews
Tax

Gianni Gutiérrez leads Ferrere’s tax department, along with partner Isabel Laventure. The tax team at Ferrere is comprised of eight lawyers and more than 40 accountants. The group has gained a reputation for providing a wide range of tax expertise, but it excels in tax litigation. Moreover, the tax team is strong in advising on all the tax aspects in connection to cross-border M&A transactions. Although the tax team is active in different sectors, it has developed expertise in tax matters in the energy and natural resources sectors.

During the research period the team advised Uber on the structuring of its onshore – offshore operations, dealings with the Uruguayan Tax Authority and accommodation to tax framework applicable to Partner Drivers. In addition, the firm successfully represented Uber in litigation decrees issued by the Executive Branch regarding taxation of the platform operations and is claiming taxes paid plus damages and interest.

Client feedback

Their multidiciplinary team had a great knowledge and capability in providing solutions, they are readily available and with a good attitude. There are no complex o difficult tasks for them to focus on.

They are a multidisciplinary company, well informed, updated and reliable. The focus on client and providing an accurate answer.

Resposive, detailled. Highly professionals.”

4 results4 results
But businesses should remain flexible when choosing between internal and external resources to handle added ViDA complexity, ITR’s Indirect Tax forum also heard
Jeff Soar lifts the lid on WTS UK’s ambitious recruitment plans, the firm's positioning against the big four, and why tax is the perfect profession for AI
ITR sat down for a pre-event interview with Tim Zech, WTS Germany, and Jeff Soar, WTS UK, keynote speaker at next week’s ITR AI in Tax Forum 2026 in London
While pillar two has been enacted on paper in Brazil, companies are encountering a range of practical compliance issues, ITR has heard
The firm’s eye-catching UK launch is a major statement of intent, but it will face stern opposition in its quest to be the top global tax player
Under Jeff Soar’s leadership, WTS UK aims to scale to 100 partners within five years and challenge the big four
One year after Nuwaru joined the WTS network, leaders James Jobson and Matthew Missaghi reflect on the firm’s mission to offer mid-tier pricing but deliver top-tier results
Increasingly, clients are looking for different advisers to the established players, Ryan’s president for European and Asia Pacific operations tells ITR
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