Español
Mexico
SAT Updates CFDI 4.0 Catalogs: What You Need to Know (March 2026)
Mar
The Servicio de Administración Tributaria (SAT) has announced a relevant update to the CFDI version 4.0 catalogs, directly impacting companies involved in foreign trade operations.
Below, we clearly explain what has changed, when it takes effect, and what it means for your business.
What changes were made?
The SAT specifically updated the following catalog:
- c_NumPedimentoAduana
This catalog contains information related to customs codes used in import/export entries (pedimentos), which are essential for the correct issuance of electronic tax documents.
Important:
No changes were made to the XSD schemas, meaning the technical structure of CFDI 4.0 remains unchanged.
New records added
A total of 9 new records have been added to the c_NumPedimentoAduana catalog, effective March 25, 2026:
| c_Aduana | Patent | Fiscal Year | Quantity | Effective Date |
| 19 | 3799 | 2026 | 999999 | 25-03-2026 |
| 30 | 3615 | 2026 | 999999 | 25-03-2026 |
| 40 | 3241 | 2026 | 999999 | 25-03-2026 |
| 40 | 3799 | 2026 | 999999 | 25-03-2026 |
| 43 | 1764 | 2026 | 999999 | 25-03-2026 |
| 47 | 1764 | 2026 | 999999 | 25-03-2026 |
| 65 | 3076 | 2026 | 999999 | 25-03-2026 |
| 80 | 1892 | 2026 | 999999 | 25-03-2026 |
| 81 | 3563 | 2026 | 999999 | 25-03-2026 |
When do these changes take effect?
The new records are applicable starting March 25, 2026.
From that date onward, companies must ensure they are using the updated values in their electronic invoicing processes.
What is the impact on your business?
Although this is a specific update, it may lead to issues if not properly managed:
- CFDI rejections due to outdated catalogs
- Inconsistencies in foreign trade operations
- Risk of non-compliance with tax regulations
How to prepare
To avoid disruptions, it is essential to:
- Keep your ERP catalogs up to date
- Validate that your invoicing processes are aligned with SAT requirements
- Have a solution that can quickly adapt to regulatory changes
Is your system ready for these changes?
With Microsoft Dynamics 365 Business Central + fiscal localization, you can:
- Quickly adapt to SAT updates
- Automate CFDI management
- Reduce errors and rejections
- Ensure full regulatory compliance
Contact us and make sure your operation stays compliant and up to date.
info@llbsolutions.com | Mexico Localization
