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World Tax Sponsored

2026 Edition
General corporate tax
15 firms ranked
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Tier 1

Bell Gully
4 practice areas
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Chapman Tripp
4 practice areas
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Deloitte
7 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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Russell McVeagh
4 practice areas
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Tier 2

Buddle Findlay
4 practice areas
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DLA Piper
3 practice areas
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Mayne Wetherell
3 practice areas
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MinterEllisonRuddWatts
3 practice areas
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Simpson Grierson
2 practice areas
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Tier 3

Grant Thornton
6 practice areas
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Staples Rodway
2 practice areas
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Other notable

Dentons
3 practice areas
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Tax controversy
9 firms ranked
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Tier 1

Bell Gully
4 practice areas
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Chapman Tripp
4 practice areas
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Tier 2

Buddle Findlay
4 practice areas
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Deloitte
7 practice areas
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Mayne Wetherell
3 practice areas
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MinterEllisonRuddWatts
3 practice areas
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PwC
7 practice areas
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Russell McVeagh
4 practice areas
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Other notable

EY
7 practice areas
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Transfer pricing
12 firms ranked
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Tier 1

Deloitte
7 practice areas
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EY
7 practice areas
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KPMG
7 practice areas
View profile
PwC
7 practice areas
View profile

Tier 2

Bell Gully
4 practice areas
View profile
Grant Thornton
6 practice areas
View profile
Russell McVeagh
4 practice areas
View profile
TP Equilibrium
3 practice areas
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Tier 3

Buddle Findlay
4 practice areas
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Chapman Tripp
4 practice areas
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DLA Piper
3 practice areas
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Other notable

Dentons
3 practice areas
View profile
EY
Overview

The EY law tax practice team has an extensive technical understanding of all tax types, including customs duties, and specialises in handling complex cross-border tax issues, BEPS matters and MAPs. The indirect tax practice team consists of professionals with specialist skills in technology and data management, and also has a strong legislative background. Tori Sullivan is the key tax partner in the team. 

Sullivan and the team recently represented Anderson & O’Leary in a tax dispute. They represented the client in the initial independent review stage and the District and High Court, alongside Jenny Cooper QC in the High Court. The dispute is still ongoing, and the team will be representing the client in the Court of Appeal in 2023. 

Senior Associate Jonathan Choie left for EY Singapore during the research period.

More than 200 tier promotions reshaped this year's European rankings as several international firms strengthened their positions in key tax markets
One of the two appointments is EY’s Gordon McIntosh, who becomes the big four firm’s second senior tax departure in September
Pillar two has been clients’ ‘biggest headache’ but also a driver of growth for MHA, which believes it has the edge over its big four rivals
Tax advisers should revisit India secondment arrangements after the EY US ruling strengthened the Centrica precedent and raised fresh withholding concerns
The ability of tax authorities to receive and analyse data is becoming ‘quite advanced’, warns Stuart Lang, head of EY’s compliance co-sourcing solution
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
It continues a prolific spree of investment for the firm, after it launched in Indonesia, Thailand, Saudi Arabia and Japan in 2025
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
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