MVE June 2026 Extension: What Changed (Updated: the transition now ends October 31)

What exactly changed?

The Electronic Value Declaration (Manifestación de Valor Electrónica or MVE), regulated by Rule 1.5.1 of the RGCE and Format E2, was scheduled to become mandatory on June 1, 2026. The SAT decided to extend the deadline by two additional months, to August 1, 2026 (transition through July 31). This is the third extension — the first moved the date from December 2025 to April 2026, and the second from April to June 2026.

What did NOT change?

• Format E2 remains the same — same fields, same structure
• The importer's e.firma is still required to sign the MVE
• VUCEM transmission via Web Services (SOAP/WS-Security) is unchanged
• Customs Law articles governing valuation (Art. 59, 65, 66) remain in effect
• Art. 81 electronic expediente requirements remain mandatory
• Penalties for non-compliance ($15,000 to $50,000 MXN per operation) are unchanged
• COVE remains a prerequisite for the MVE

Why did SAT grant the extension?

SAT acknowledged that many importers and customs agencies were not yet prepared to transmit the MVE electronically. According to the official statement, the extension aims to give foreign trade users 'the time and tools necessary to comply with this obligation in a timely manner.'

Complete MVE timeline

1. December 2025 — Original mandatory date. First extension published.
2. April 1, 2026 — Second deadline. Second extension published on March 30.
3. June 1, 2026 — Third deadline. Third extension published June 2 on the SAT portal.
4. August 1, 2026 — Date set by this extension (transition through July 31). No longer current.
5. July 31, 2026 — New advance version: the transition period runs through September 30 and Format E15 for contracts is created.
6. September 30, 2026 — New extension: the transition period ends October 31, 2026, and the MVE becomes mandatory by customs regime.

The current calendar, after October 31, 2026:

• November 1, 2026 — Processing, transformation or repair in a bonded facility
• November 15, 2026 — Strategic bonded facility (RFE)
• December 1, 2026 — In-transit goods
• December 15, 2026 — Bonded warehouse
• January 1, 2027 — Temporary imports (IMMEX)
• January 15, 2027 — Definitive imports

What to do with the extra 60 days

The extension is not a reason to relax — it's a reason to act. Agencies and companies that use this time to automate their MVE process will reach the end of the transition period operating smoothly. Those that wait until the last moment will face VUCEM congestion, errors from lack of practice, and potential clearance delays.

Manual vs automated: the real difference

Filling the MVE manually in the VUCEM portal takes 30-60 minutes per operation. With Camtom MVE, the same process takes under 3 minutes. Upload your COVE or pedimento proforma as PDF, AI extracts the data automatically, validates against current regulations, and transmits directly to VUCEM. Maximum cost: $60 MXN per MVE — up to 17x cheaper than other solutions.