Technical Alert: New Mandatory Requirements for the DTE Transmission System

The Ministry of Finance has confirmed that, starting December 1, 2025, new provisions will take effect that directly impact the transmission process of Electronic Tax Documents (DTE). These updates aim to strengthen the accuracy and traceability of the events reported by taxpayers.

Key Updates Announced

Updated validations for invalidation events

New verification rules will be implemented for the following fields:
• Event Date
• Event Time

These adjustments affect the structure of the Invalidation Event, making it necessary to ensure that issuance and transmission systems are properly aligned with the new logic.

Updated catalogs for the Transmission System

The Ministry has also published a revised version of the catalogs included in the Functional Manual.

Prepare before December 1

If your company needs to validate or adjust its integration to comply with these changes, our team can support you throughout the process. Contact us and avoid disruptions in your operation.

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