Also known as: FIEL, Advanced Electronic Signature
Digital certificate issued by SAT (Mexican tax authority) that identifies the taxpayer and enables legally valid electronic document signing. Required for MVE transmission and other trade procedures.
A pair of files (.cer and .key) plus password identifying the taxpayer to SAT. Formerly called FIEL. Uses RSA-SHA256 cryptography and is valid for 4 years.
Stay MVE compliant
Learn more→Digital Seal
An electronic certificate linked to the e.firma used to authenticate and sign documents with VUCEM and other SAT systems.
TechnologySingle Window for Foreign Trade (VUCEM)
Mexican government digital platform centralizing all foreign trade procedures. Allows submitting documents, obtaining permits, generating COVEs, and electronically transmitting MVEs.
TechnologyCustoms Digital Certificate
Electronic file (.cer) containing the taxpayer's public key, issued by SAT. Together with the private key (.key), enables signing electronic documents for foreign trade procedures.