International tax & transfer pricing reviews
Structured analytical reviews for all 11 BRICS jurisdictions.
Open review collection →Research library · 11 BRICS jurisdictions
A source-led working library for corporate tax, international tax and transfer pricing. Download primary materials, follow amendments and understand their practical context.
Legislation library
Each card opens that country’s archive: every official file we hold, not a single act.
Knowledge database
Structured analytical reviews for all 11 BRICS jurisdictions.
Open review collection →Navigate double-tax-treaty relationships within the BRICS group and track source materials by country.
Open treaty matrix →Source hierarchy, consolidation rules, version dates and the difference between official and working texts.
Read methodology →Regulatory tracker
Short, source-linked notices for matters requiring attention.
The prior Income-tax Act 1961 was replaced from 1 April 2026. The archive includes the Gazette Act and Income-tax Rules 2026.
Consolidated monitoring of changes following Law 14,596/2023 and subsequent RFB instructions.
Official texts and source snapshots for Law 206/2020 and subsequent amendments.
Editorial coordination
Sources are monitored through the Observatory’s editorial process. Named country experts will be published only after their role and consent have been confirmed.