Mexico's 2026 Customs Reform: Key Changes for Brokerages and Importers

What Is Changing in 2026?

Mexico's customs reform in 2026 represents the most significant overhaul in a decade. Driven by the need for greater transparency, faster processing, and alignment with international standards, the reforms touch every aspect of customs operations — from how entries are filed to how brokerages are audited. The changes are phased throughout 2026, with the most impactful requirements taking effect in Q1 and Q2.

Key Changes

• MVE mandate (June 2026): All imports require an electronic value declaration signed by the importer via VUCEM.
• Enhanced audit protocols: SAT is increasing post-clearance audits by 40%, with particular focus on classification accuracy and value declarations.
• Digital record retention: All customs documentation must be stored digitally for 5 years with immediate retrieval capability during audits.
• Broker liability expansion: Customs brokers face increased personal liability for classification errors and value discrepancies.
• Simplified entry for trusted traders: AEO-certified companies gain access to expedited clearance with reduced documentation requirements.

For foreign companies importing into Mexico, these changes mean higher expectations for documentation quality and compliance rigor. Work with your customs broker to understand how they are adapting to the new requirements. Ask specifically about their MVE filing process, their classification error rate, and their audit readiness. Brokerages that have invested in digital infrastructure will navigate these changes smoothly; those still relying on manual processes will struggle.