The rollout of IBS and CBS is transforming how companies issue tax documents and calculate taxes. We closely track every technical note of the national NFS-e and translate the practical impact for your business.
Technical, multidisciplinary work in tax, corporate, labor and civil law — from preventive advisory to administrative and judicial litigation.
Tax burden diagnosis, lawful planning and technical opinions on federal, state and municipal taxes, including the new IBS and CBS rules.
Learn moreMonitoring of the national NFS-e technical notes and guidance on ancillary tax obligations during the transition period.
Learn moreDefense against tax assessments, appeals before CARF and state/municipal administrative courts, and tax litigation.
Learn moreCompany formation and restructuring, business contracts, due diligence, succession and governance for family businesses.
Learn morePreventive advisory on labor routines, collective bargaining and defense before Labor Courts.
Learn moreContracts, movable and real property leasing, real estate development and civil matters with tax implications.
Learn moreReview of tax and corporate routines, identification of contingencies and alignment with market best practices.
Learn moreTailored technical opinions on complex tax, corporate and regulatory matters, grounded in doctrine and case law.
Learn moreDeciding without prior technical analysis is the leading cause of tax and corporate contingencies. Our advisory defines the best path before you take on unnecessary risk.
Start a Strategic ConsultationWe assess the tax, corporate and documentary situation to identify risks and opportunities.
We define the best path: planning, regularization, administrative or judicial litigation.
We map contracts and ancillary obligations before they become contingencies.
We identify and correct discrepancies before a tax assessment — reducing exposure.
Piraci Oliveira Sociedade de Advogados is a firm focused on business matters, with emphasis on Tax, Corporate, Labor and Civil Law, led by Piraci U. de Oliveira Jr., lawyer and accountant, holding a Master's degree in Law.
Translate tax and business complexity into safe decisions for the client.
To be a reference in tax, corporate and labor advisory and litigation in São Paulo.
Technical rigor, constant updating and professional confidentiality in every opinion.
Practical experience at a major audit firm and decades teaching Tax Law.
Lawyer and accountant, Master's in Law, MBA professor and university professor of Tax and Administrative Law.
Former Tax Planning Manager at KPMG Peat Marwick — legal insight grounded in the company's accounting reality.
Ongoing monitoring of the Consumption Tax Reform, NFS-e technical notes and Federal Revenue rulings, with published opinions.
Boutique model, with direct communication with the responsible lawyer — no intermediaries, no automated service.
Instructor at the São Paulo Bar Association, the Higher School of Advocacy (ESA) and CRC/SESCON, and author of several tax law books.
All client data and documents are handled with total confidentiality, in compliance with the Bar Association's Code of Ethics and LGPD.
Request a consultation and find the best legal and tax path for your business.
Tax Reform
Legal opinion on Technical Note SE/CGNFS-e No. 009 and its effects on the leasing of movable property.
Read article
NFS-e
Technical report on the scope of Technical Note No. 009, dated July 14, 2026.
Read article
Real Estate Law
Legal opinion on the inconsistency between two tax rulings on the taxation of real estate under the deemed-profit regime.
Read articleInterviews, podcasts and media appearances by Piraci on taxation, tax reform and business law.
BM&C News Participação em podcast sobre saída fiscal do Brasil e planejamento tributário internacional.
WatchAsk us about Tax, Corporate, Labor and Civil Law. We reply within 24 hours.
Describe your situation and we will get back to you with an initial assessment within 24 hours.
