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 e.firma is an electronic signature that allows you to file fiscal formalities on line through the SAT and other Government entities. e.firma is a personal, safe and encrypted file, which has the same legal value as the handwritten signature.

You can use e.firma with SPID, the new same day system of electronic payments in US dollars, between accounts held in any Mexican bank within the Mexican territory and is based on the MXN Peso real time payment system, SPEI.

Download e.firma and enjoy the benefits of SPID
 
 
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Instrucciones - PC
 
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Instrucciones - MAC
 
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Java 1.6 o superior 
Windows XP o superior con .NET Framework 3.5 o superior