On September 22, 2026, the Mexican tax authorities published the Second Amendment to the General Rules of Foreign Trade for 2026 (RGCE 2026) in the Official Federal Gazette (DOF), together with amendments to Annexes 1, 2, and 22. These modifications introduce new compliance obligations, procedural adjustments, and operational changes that will impact importers, exporters, customs brokers, customs agencies, logistics providers, and certified companies operating in Mexico.
The following summarizes the most relevant changes and the actions companies should consider to ensure continued customs compliance and operational efficiency.
Mandatory Electronic Value Declaration
One of the most significant changes introduced by the amendment is the definitive transition to the electronic submission of the Value Declaration (Manifestación de Valor).