About
Carnet is Mexico's only domestic card brand. It is owned and run by the processor Prosa (Promoción y Operación S.A. de C.V.), whose shareholders include Banorte, HSBC México, Santander México and Scotiabank México. Mexican banks issue Carnet debit, credit, prepaid and voucher cards, which work at POS terminals, ATMs and online checkouts within Mexico. As of 2026, Prosa cites more than 19 million cards, about 400 million transactions a year and more than 500,000 merchants. In February 2026, Mexico's antitrust authority blocked Visa's planned purchase of 51% of Prosa, partly citing the risk to Carnet as a low-cost alternative brand.
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