SAT Update 2026: Key Changes in the CFDI 4.0 Catalogs

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Maintaining tax compliance is a dynamic process. The Tax Administration Service (SAT) issued today, March 13, 2026, an important update to the catalogs governing the issuance of CFDI version 4.0.

This modification directly impacts companies involved in foreign trade operations, specifically in the registration of customs entries (pedimentos aduanales).

What exactly has changed?

The update focuses exclusively on the c_NumPedimentoAduana catalog. It is important to note that no XSD schemas have been modified, meaning the technical XML structure remains unchanged; the update only affects the allowed values within the mentioned catalog.

New records added

A total of 13 new records have been added, enabling specific combinations of customs office, patent, and fiscal year for 2026. The integrated data is detailed below:

Customs Patent Year Max Amount Valid From
11 3241 2026 999999 03-13-2026
16 1651 2026 999999 03-13-2026
16 1722 2026 999999 03-13-2026
16 1764 2026 999999 03-13-2026
16 3461 2026 999999 03-13-2026
16 6169 2026 999999 03-13-2026
19 3241 2026 999999 03-13-2026
24 1764 2026 999999 03-13-2026
52 3441 2026 999999 03-13-2026
65 1730 2026 999999 03-13-2026
73 6152 2026 999999 03-13-2026
80 1682 2026 999999 03-13-2026
80 1687 2026 999999 03-13-2026

When do these changes take effect?

These updates take effect immediately as of March 13, 2026.

Note for ERP users

If your company uses Microsoft Dynamics 365 or similar systems, it is essential to verify that these catalog tables are updated to avoid invoice stamping rejections when using foreign trade complements.

Need to ensure your system stays up to date?

At LLB Solutions, we specialize in adapting the fiscal localization capabilities of Microsoft Dynamics 365 to comply with SAT regulations. Don’t let a catalog update disrupt your operations.

Schedule a technical consultation here and ensure your tax compliance.

info@llbsolutions.com | Mexico Localization