Mexico | Financial Regulation. October 2026

We present a summary and analysis of the most relevant developments and publications in Mexico's financial regulatory landscape.

Key points

• Key points:
• CNBV streamlines SMEs credit file documentation requirements and allows assessment of payment capacity through account debits and credits for consumer and commercial loans below 4 million UDIs.
• Banxico introduces bond purchase auctions (BONDES, Cetes) as a new monetary policy tool and strengthens the auction system's governance,
• Regulators introduce a new "Level 2 Bis" account for Mexican individuals, allowing monthly account deposits of up to 15,000 UDIs, of which up to 3,000 UDIs may be in cash.
• CNBV revises its proposed regulatory framework for Payment Instrument Networks, including a review of the proposed caps on interchange fees.
• Banxico presents a draft regulation that overhauls the regulatory framework for Card Payment Clearinghouses, with an emphasis on competition and information security.

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