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Mexico’s Tax Administration Service (SAT) updated the CFDI Version 4.0 Catalogs on October 29, 2026, according to the publication date shown in the official Annex 20 section. These catalogs contain the codes and descriptions required to complete electronic invoices.
You can review the official information in the SAT Annex 20 section.
The announced change affects the c_NumPedimentoAduana catalog and includes new records effective as of October 30, 2026, according to the information provided regarding this update.
For companies generating CFDI documents from ERP systems, this type of update highlights an important consideration: keeping the catalogs used in invoicing processes aligned with the current publications issued by the SAT.
The CFDI Version 4.0 Catalogs published by the SAT can be reviewed in the official Annex 20 documentation. The SAT specifies that the start and end dates for the validity of codes are indicated in the corresponding columns of each catalog.
CFDI Version 4.0 Catalogs: What Changes with This Update?
According to the information provided regarding this update, the change applies to the c_NumPedimentoAduana catalog, which is related to customs declaration numbers.
The following records have been added:
| Customs Office (c_Aduana) | Patent | Year | Quantity | Effective Date |
| 48 | 2058 | 2026 | 999999 | 10/30/2026 |
| 80 | 1887 | 2026 | 999999 | 10/30/2026 |
The information provided for this update also indicates that the XSD schemas have not been modified.
It is important to distinguish between these two concepts. Updating records contained in a catalog does not necessarily mean that the technical structure of the CFDI itself has also changed.
Within its official Electronic Invoice Format (Annex 20) section, the SAT provides catalogs, guides, schemas, and other resources related to CFDI Version 4.0.
When Do the New Records Become Effective?
According to the information provided for the new c_NumPedimentoAduana records, their effective date is October 30, 2026.
This is particularly important when working with tax catalogs.
The SAT states that the start and end dates for the validity of codes included in catalog updates appear in the corresponding columns of each catalog. It also specifies that codes whose validity has expired may no longer be used after their stated expiration date.
You can review the current catalogs directly in the SAT Annex 20 documentation.
For this reason, it is not enough to know that a catalog has been updated. Companies should also review the validity dates associated with the codes they use.
What Should Companies Issuing CFDIs Review?
Companies that generate CFDIs through administrative or ERP systems should identify whether their processes use information from the updated catalogs.
In this case, companies should pay particular attention to:
- The version of the catalogs used by the system.
- The c_NumPedimentoAduana catalog.
- The codes and records used in transactions involving this information.
- The corresponding effective start and end dates.
- Processes related to CFDI generation.
- Integrations that consume or validate information from these catalogs.
The SAT indicates that these catalogs contain the codes and descriptions required to complete electronic invoices, making them part of the official technical documentation for CFDI.
For a broader review of the format and completion requirements, companies can also consult the official CFDI Completion Guide published by the SAT.
Why Are CFDI Catalogs Important?
The CFDI Version 4.0 Catalogs are part of the information used to prepare electronic invoices and provide the codes and descriptions defined by the SAT.
Therefore, a catalog update may be relevant to processes that specifically use the modified or newly added codes.
This does not mean that every catalog update automatically changes all of a company’s invoicing processes. The impact depends on the records being used and the applicable operational scenario.
In this case, the analysis should focus particularly on transactions that use the c_NumPedimentoAduana catalog.
What Does This Mean for Companies Using Microsoft Dynamics 365 Business Central?
Organizations that generate information for their CFDIs through Microsoft Dynamics 365 Business Central should assess whether the catalog update affects the data used in their processes.
The review should distinguish between three elements:
The current tax catalog: published by the tax authority.
The data available in the ERP: the information involved in preparing the document.
The electronic invoicing process: the generation and subsequent processing of the CFDI according to the architecture used by the company.
Keeping these elements separate helps companies determine where an update may need to be evaluated and avoids interpreting every SAT catalog modification as an automatic change to the entire system.
To confirm the current specifications, companies should always refer to the SAT documentation for CFDI Version 4.0.
Keep Your Processes Ready for SAT Updates
The CFDI Version 4.0 Catalogs may be updated as the specifications managed by the SAT evolve. Companies should therefore pay attention not only to major CFDI version changes, but also to catalog updates that may affect their operations.
We recommend consulting information directly through the SAT Electronic Invoicing portal, where official resources related to electronic invoicing are available.
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