What is the MVE? Definitive Guide to Mexico's Electronic Value Declaration 2026

What is the Electronic Value Declaration (MVE)?

The MVE (Manifestación de Valor Electrónica) is the digital document through which the importer declares, under oath, the customs value of goods imported into Mexico. It is governed by Rule 1.5.1 of the General Foreign Trade Rules (RGCE) and transmitted through VUCEM via Format E2.

The MVE transition period ends October 31, 2026. Filing then becomes mandatory by customs regime; for definitive imports, starting January 15, 2027.

• 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

Who signs the MVE?

The importer signs the MVE — not the customs broker. The customs broker may prepare the information and pre-fill Format E2, but legal responsibility for the value declaration falls exclusively on the importer, who must sign with their e.firma (FIEL).

MVE vs COVE: What's the difference?

• COVE: Generated by the customs broker with their digital seal. Covers the invoice value. VUCEM assigns a 'Value Receipt Number'.
• MVE: Generated and signed by the importer with their e.firma. Declares the complete customs value (invoice + incrementables - decrementables). VUCEM assigns an 'MNVA Number'.
• Flow: First COVE is transmitted, then MVE referencing that COVE, and both numbers are integrated into the pedimento.

How to automate the MVE

Manual MVE filling in VUCEM takes 30-60 minutes per operation. With Camtom MVE, the same process takes under 3 minutes: upload your COVE or proforma PDF, AI extracts the data, validates against regulations, and transmits directly to VUCEM. Under $60 MXN per MVE.