Daniel & Diniz Advocacia Tributaria


215 Pais Leme Street, cj. 706
São Paulo, 05424-150


Key contacts:

Founder partner: Diego Diniz Ribeiro
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Quick facts:

Number of partners: 4
Number of advisors: 2
Languages: Portuguese; English; German; Spanish

After a long time serving as tax judges in the CARF, the main Administrative Tax Court of the country, our partners decided to constitute the law firm, having a very unique perspective and standing out with technical and in-depth decisions which have had wide repercussions in the tax environment.

The firm was created to excel as a tax and customs law boutique. To achieve this, they have developed a culture of combining academic and professional development of all its members, being recognized for the clinical look on strategic cases and the depth of their insights.

  • "Very prepared and super updated team. As the partners are professors and are in the academic environment, they have a wealth of knowledge and act as true tax agents, bringing creative and innovative solutions from the classroom."
  • ‘Technical quality and always up-to-date. They are the best-prepared partners with the most holistic view of the issues asked.’
  • ‘The structure is small, but the expertise is vast. The proximity of the partners to the client is exemplary, especially the ability to provide assistance at any time (availability). For the area of administrative tax litigation, I don’t know of any other firm that can offer such good expertise at the fair price charged. The firm acts as a partner to clients.’
  • ‘Daniel Diniz Ribeiro and Carlos Augusto Daniel Neto are exemplary. They are very close to the client, have vast knowledge of tax issues and are very up-to-date on urgent matters. They are excellent business partners.’
  • ‘All of Daniel & Diniz’s team are excellent in tax and customs matters and highly specialised in federal administrative litigation. In addition, not only are they very sharp in technique, they are extremely kind and attentive in customer service, questions, and urgent demands.’
  • ‘I particularly recommend the partner Carlos Daniel, who is a genius in carrying out any work that is challenged, in addition to being a national highlight in the tax and customs area, either for his practice at the CARF or for his academic performance.’
  • ‘The team has highly qualified professionals. The differentiator is that the service is carried out directly by the partners, Carlos Daniel and Diego Diniz, who are extremely qualified, very experienced and with high expertise in the tax area. We were extremely satisfied. Definitely, being able to have this direct contact with the partners is a differentiator.’
  • ‘Partner Carlos Daniel brought us numerous clarifications in the tax area. He is a scholar of tax law; he is a very prepared and excellent professional.’

  • Corporate tax matters: Corporate taxes
  • Corporate tax matters: Financial services
  • Corporate tax matters: Restructuring
  • Corporate tax matters: Cost-sharing arrangements
  • Corporate tax matters: Transactions
  • Corporate tax matters: Technology
  • Corporate tax matters: Cryptocurrency
  • Corporate tax matters: Value chains
  • Tax advisory: Tax consulting
  • Tax advisory: International tax advisory
  • Indirect tax: VAT
  • Indirect tax: Customs
  • Indirect tax: Supply chains

  • Agriculture
  • Aviation
  • Consumer goods and services
  • Healthcare
  • Industrials

Daniel & Diniz Advocacia Tributária has a ‘very prepared and super updated’ tax team, which is commended for its ability to combine academic knowledge with ‘creative and innovative solutions’ for commercial clients. The firm is especially strong in contentious matters, regularly assisting companies in complex direct, indirect and customs-related claims in the judicial and administrative courts. Lead partners Diego Diniz Ribeiro and Carlos Augusto Daniel Neto have a ‘vast knowledge of tax issues’ and are ‘excellent business partners’.