The Banco Central do Brasil ends its enforcement grace period for PIX's MED 2.0 fraud recovery mechanism on May 10, 2026. From May 11, institutions that have not fully implemented the multi-hop fund tracing system face formal supervisory penalty proceedings under Article 121 of the PIX Regulation.
BCB Resolution 546, published January 23, 2026, inserted Article 113-A into the PIX regulatory framework, suspending the opening of enforcement cases for MED 2.0-related violations between February 2 and May 10. The measure gave participants a 97-day window to complete technical integration of the expanded fund tracing capability, which requires tracking suspected fraud proceeds across up to five intermediary accounts with automatic preventive blocking at each stage. Over 70 institutions were reportedly still in the PIX accession process as of late April 2026.
The enforcement resumption coincides with the close of two accreditation deadlines. Non-authorized payment institutions faced a May 1 deadline under Resolution 429 to submit BCB authorization requests, while a second window running May 1-31 covers electronic money issuers and postpaid instrument issuers that began operations before September 5, 2025. Institutions that miss the May 31 window may continue activities for only 30 days before facing exclusion. PIX processed 6.27 billion transactions worth R$2.68 trillion in April 2026, a seasonal dip from March's record 7.44 billion, while the system recorded its ninth and tenth service disruptions of the year as Caixa Economica Federal experienced app failures on April 28 and 30.