{"id":545243,"date":"2026-06-30T15:23:49","date_gmt":"2026-06-30T14:23:49","guid":{"rendered":"https:\/\/cryptoslate.com\/?post_type=crypto_law&#038;p=545243"},"modified":"2026-06-30T15:32:54","modified_gmt":"2026-06-30T14:32:54","slug":"bank-of-mexico-circular-4-2019-virtual-assets","status":"publish","type":"crypto_law","link":"https:\/\/cryptoslate.com\/crypto-laws\/bank-of-mexico-circular-4-2019-virtual-assets\/","title":{"rendered":"Bank of Mexico Circular 4\/2019 on Virtual Asset Operations"},"content":{"rendered":"<p>Bank of Mexico Circular 4\/2019 is Mexico\u2019s central-bank regulation for virtual asset operations by credit institutions and financial technology institutions. As of June 30, 2026, Banco de M\u00e9xico publishes a compiled text of Circular 4\/2019 that includes the amendment made by Circular 37\/2020. The original circular was published in the Diario Oficial de la Federaci\u00f3n on March 8, 2019 and entered into force the following day; the 2020 amendment entered into force on October 1, 2020.<\/p>\n<h3>What Circular 4\/2019 Covers<\/h3>\n<p>The circular implements part of Mexico\u2019s Fintech Law framework by defining the virtual assets that covered institutions may use and by setting terms, restrictions, authorization requirements, and information requirements for operations with those assets. Its scope is deliberately narrow: it applies to \u201cInstituciones,\u201d meaning credit institutions and authorized financial technology institutions, and it defines a virtual asset operation as an internal operation carried out directly or indirectly with virtual assets.<\/p>\n<p>The practical effect is to keep virtual asset activity within a controlled institutional perimeter. Covered institutions may conduct virtual asset operations only when the activity is an internal operation and only with prior authorization from Banco de M\u00e9xico. The circular also states that institutions must prevent the risk of those operations from being transmitted directly or indirectly to clients.<\/p>\n<h3>Key Restrictions on Customer-Facing Crypto Services<\/h3>\n<p>Circular 4\/2019 is especially important for crypto exchanges, custody, and transfer services because it states that operations seeking to provide direct customer services for exchange, transmission, or custody of virtual assets are not eligible for authorization under the circular. That does not describe every crypto activity in Mexico, but it is a major perimeter rule for banks and regulated fintech institutions.<\/p>\n<ul>\n<li><strong>Internal operations only:<\/strong> virtual asset operations must support internal institutional processes rather than direct retail crypto services.<\/li>\n<li><strong>Prior authorization:<\/strong> institutions must submit authorization requests to Banco de M\u00e9xico before conducting covered operations.<\/li>\n<li><strong>Customer-risk separation:<\/strong> institutions must explain how they will prevent customers from bearing risk from the virtual asset operation.<\/li>\n<li><strong>Defined asset features:<\/strong> eligible assets must have identifiable electronic units, protocol-based issuance controls, and mechanisms to prevent double spending.<\/li>\n<\/ul>\n<h3>Authorization, Risk Management, and Operational Controls<\/h3>\n<p>The authorization request must describe the operating model, compliance measures, expected benefits, operating manuals, protocol characteristics, market characteristics, and the processes in which the virtual asset will be used. The institution must also justify why the activity is not a direct service or operation offered to clients.<\/p>\n<p>The risk-management requirements are broad. Circular 4\/2019 calls for an integrated risk framework covering business, exchange-rate, financial, operational, cybersecurity, illicit-finance, and reputational risks. Institutions must review that framework at least annually and report newly generated risks and their potential impact to Banco de M\u00e9xico where updates are required.<\/p>\n<h3>Third Parties and Independent Reviews<\/h3>\n<p>The circular allows covered institutions to contract third parties, including domestic institutions and foreign entities, for services related to virtual asset operations, subject to prior authorization. Contracting documentation must address confidentiality, audit access, information requests, continuity measures, and other controls. Circular 37\/2020 amended the third-party approval requirement so that the relevant approval refers to the institution\u2019s own administrative body rather than the third party\u2019s administrative body.<\/p>\n<p>Circular 4\/2019 also requires an independent third-party evaluation of compliance. The evaluation must be presented to the institution\u2019s administrative body and, where applicable, audit committee, and submitted to Banco de M\u00e9xico within the specified time period. These review obligations reinforce the circular\u2019s approach: virtual asset technology may be used inside regulated institutions, but only under a documented, supervised, risk-contained model.<\/p>\n<h3>Regulatory Significance for Mexico<\/h3>\n<p>Banco de M\u00e9xico has described its broader policy as maintaining a \u201chealthy distance\u201d between virtual assets and the Mexican financial system while allowing technological use inside financial institutions where it can improve efficiency or functionality. In that context, Circular 4\/2019 is best understood as a binding perimeter and authorization framework for internal virtual asset operations, not a general consumer-facing crypto licensing regime.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bank of Mexico Circular 4\/2019 sets conditions for banks and fintech institutions to conduct virtual asset operations as internal operations, subject to prior Banxico authorization and risk controls.<\/p>\n","protected":false},"author":1652,"featured_media":545251,"template":"","meta":[],"crypto_law_jurisdiction":[81429],"crypto_law_topic":[81505,81864,81519,81869,81870],"crypto_law_status":[81585],"crypto_law_type":[81546],"crypto_law_actor":[82627],"crypto_law_asset_class":[81623],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.9 (Yoast SEO v21.9.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bank of Mexico Circular 4\/2019 Virtual Assets<\/title>\n<meta name=\"description\" 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