According to the cited documentsOperating and living
The Factura Electrónica en Línea (FEL) online electronic invoicing regime was created by SAT Board Agreement No. 13-2018, in force since May 23, 2018. It covers the issuance, transmission, certification and electronic retention of invoices, credit and debit notes and other Electronic Tax Documents (DTE).
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- FEL legal basis
Board Resolution 13-2018
In force since May 23, 2018SAT
