Mexico: SAT ships CFDI 4.0 catalogue updates roughly monthly through 2026
SAT has published CFDI 4.0 catalogue updates at close to monthly cadence through 2026 — 29 January, 12 February (mandatory from the 13th), 8 May, 19 June and 17 July among them. The July release adds records for customs declarations and customs broker licences. The pattern matters more than any single release: the XSD structure is generally left untouched while catalogue values change, so integrations that cache catalogues locally or validate against a pinned copy start rejecting valid documents, or worse, stamping invalid ones. Mexican operations need a scheduled catalogue refresh rather than a project-time import. The same discipline applies to the Carta Porte, payments and payroll complements, which ride on the same catalogues.