Mexico Extends Deadline for Electronic Customs Value Declaration to October 31

Mexico City — Mexico’s federal government has extended the deadline for filing the Electronic Value Declaration (Manifestación de Valor Electrónica, or MVE) to Oct. 31, giving foreign trade users more time to adapt their systems and learn the new operating scheme.

The extension was announced by the Tax Administration Service (SAT), the National Customs Agency of Mexico (ANAM) and the Digital Transformation and Telecommunications Agency (ATDT).

Starting Nov. 1, the MVE will be transmitted gradually through the Single Window for Foreign Trade Procedures (VUTCE), depending on the customs regime under which goods are shipped:

• Processing, transformation or repair in a fiscalized precinct: Nov. 1, 2026
• Strategic fiscalized precinct: Nov. 15, 2026
• Transit of goods: Dec. 1, 2026
• Fiscal deposit: Dec. 15, 2026
• Temporary import: Jan. 1, 2027
• Definitive import: Jan. 15, 2027

The agencies said the phased schedule will allow an orderly transition to the new electronic system and give users extra time to adjust their foreign trade processes.

The change was published in the First Advance Version of the Third Resolution of Amendments to the General Foreign Trade Rules (RGCE) for 2026, posted on the SAT portal. The resolution updates the eleventh transitional article of the RGCE published in the Official Gazette on Dec. 27, 2025, along with its later amendments.

Existing flexibilities for complying with the MVE remain in place. Users will not have to transmit the goods transport documents, the certificate of origin or the document proving the guarantee posted in the customs guarantee account, provided those items are attached to the corresponding customs declaration.

Importers may also submit a single format containing general information on the contracts tied to the MVE, rather than sending each contract through the VUTCE.