The boutique model has one structural decision at its centre: the senior consultant runs each engagement personally — from the initial diagnostic to oral argument at CARF, the STJ and the STF. There is no delegation to juniors through hierarchical layers and no rotation of lawyers mid-case. You speak directly with the person who decides the argument, signs the opinion and answers for the work.
SP · Rio · Brasília
by a senior consultant
for foreign founders
A consultant-led firm
TaxUp is structured as a boutique by deliberate decision, not as a marketing label. There are no layered associates, no rotating juniors between meetings, and no work offshored to lower-cost teams. The consultant who scopes the matter at the diagnostic is the same one who signs the opinion, defends the structure in tax litigation, and sits across from the auditor when the inspection comes.
That continuity is the core deliverable. It is what makes the model fit situations where technical depth matters more than scale — corporate tax planning, recovery of credits, Transfer Pricing and adaptation to the Brazilian Tax Reform.
The consultants
Each consultant personally runs matters across the firm's practice areas, with specific areas of depth. The full profile — academic background, technical expertise, working languages and representative matters — is on each consultant's page:
Rafael Belisário
Law degree from the University of São Paulo (USP) with a dual degree from Université Jean Moulin Lyon 3 (France). Focused on Transfer Pricing and Pillar 2.
Lucas Braz
Master in Tax Law from the University of São Paulo (USP), with specializations from IBET and Mackenzie. Focused on planning, credit recovery and litigation.
Rafael Belisário — Tax Lawyer, Associate
Law degree from the University of São Paulo (USP) and a dual degree from Université Jean Moulin Lyon 3 (France). Practice focused on corporate tax planning, recovery of tax credits (PIS, COFINS, ICMS, IPI), Transfer Pricing under the OECD-aligned regime (Law 14,596/2023) and tax litigation. Bilingual delivery in Portuguese, English and French.
Lucas Braz — Tax Consultant
Master in Tax Law from the University of São Paulo (USP), with specializations from IBET (Tax Law) and Mackenzie (Civil Procedure) and a law degree from the Federal University of Paraíba (UFPB). Practice focused on tax planning, recovery of credits and administrative and judicial tax litigation.
Work with the firm
Engagements begin with a diagnostic conversation directly with a senior consultant — no intake layers. The same consultant stays on the matter through to delivery.
Free 30-minute tax diagnostic
A direct conversation with a senior consultant, in English. We map the exposures and opportunities that apply and point to the most sustainable technical path — whether or not you continue with us.
Book the diagnostic