Mexico's tax authority (SAT) published new regulations requiring digital platforms to provide real-time access to their tax data. The amendments take effect April 1, 2026 and confirm digital platforms under Mexican digital services rules must grant SAT permanent online access to verify compliance. Platforms can choose the mechanism (system, interface, or app) they use to provide this access. SAT will publish detailed technical specifications in secondary regulations.

The bottom line: Platforms should prepare to implement a data-exposure layer between their internal systems and SAT rather than providing direct access to billing or ERP systems. Full technical requirements have not yet been published.