Mexico IMMEX compliance software — built for foreign companies operating in Mexico
US and European companies running maquila or IMMEX operations in Mexico need specialized compliance software. We've built systems handling Anexo 24, RGCE 1.4.14, automated pedimentos and SAT integration since 2012.
Free, with a senior consultant. The plan is yours even if you don't hire us.
Your IMMEX operation doesn't fit in your ERP
Mexican customs compliance requires records, reconciliations and deadlines that corporate systems weren't designed for.
- Your US ERP (SAP/Oracle) doesn't speak Mexican customs
- Your customs broker has fragmented data in Excel
- Audits from SAT/Aduana require records you don't have at hand
- Anexo 24 reconciliation is a quarterly nightmare
Key features
Software built around your IMMEX program, integrated with your ERP and with SAT (Mexico's tax authority).
IMMEX inventory
IMMEX inventory with tariff classification.
Pedimentos
Generation and validation of pedimentos (Mexican customs entries).
Anexo 24
Anexo 24 compliance (inventory control of temporary imports).
SAT integration
CFDI 4.0 e-invoicing and the foreign trade complement.
RGCE 1.4.14
RGCE 1.4.14 compliance (documentation and traceability).
Audit reports
Reports for SAT and customs (Aduana) audits.
Expiration alerts
Alerts before temporary-import deadlines expire.
What is IMMEX?
IMMEX = Industria Manufacturera, Maquiladora y de Servicios de Exportación (Manufacturing, Maquiladora and Export Services Industry program). A Mexican government program that allows foreign-owned companies to import raw materials, components and equipment temporarily into Mexico without paying VAT/IGI, as long as they re-export the finished goods within set timeframes.
- Anexo 24: the mandatory inventory control system for temporarily imported goods
- RGCE 1.4.14: Mexico's General Foreign Trade Rules on documentation and traceability
- Pedimento: the Mexican customs declaration filed for each import or export operation
Stack & technologies
What we DON'T do
- We don't sell packaged customs software — it's custom because every IMMEX operation is different
- We don't replace your customs broker — we work with them
- We don't do "compliance consulting" — we build software, not legal advice
Frequently asked questions
Why Four Sides Group
ISO 9001:2015 certified process
Pay only after validating each stage.
Source code 100% yours
No recurring licenses, no vendor lock-in.
Enterprise architecture from day one
Public/private environments and server management included.
+14 years of continuous production
Our oldest system has run without interruption since December 2011.
Other industries
See allCustom MES, production traceability, OEE and native SAP B1 integration.
Biometric, RFID and HR/payroll integration with a full audit trail.
Memberships, automated billing, facility access and member portal.


