Essential Features for Mexican Invoice Compliance
To ensure your invoices are legally valid in Mexico, several key compliance features are non-negotiable. Every invoice must include the issuer's and recipient's RFC (Registro Federal de Contribuyentes) number, tax regime, and postal code. The Mexican tax authority, SAT (Servicio de Administración Tributaria), mandates electronic invoicing using the CFDI (Comprobante Fiscal Digital por Internet) version 4.0 XML format. This requires a digital signature (e.Firma or CSD) and real-time validation by an Authorized Certification Provider (PAC) before issuance. Furthermore, invoices must clearly detail the IVA (Impuesto al Valor Agregado), with a standard rate of 16% and a reduced rate of 8% applicable in specific border regions. Both issuer and recipient are required to archive these validated invoices for at least five years. Non-compliance can lead to significant fines, potentially 5-10% of the invoice value.