Virtual pedimentos (V1) in Mexico: how domestic IMMEX transfers work and where they fail
Suppose a U.S. OEM buys plastic housings from an injection molder in Querétaro (Plant A, holding an IMMEX program) and wants those housings delivered two hours away to a final assembly plant in Guanajuato (Plant B, also holding an IMMEX program).
Trucking the housings 500 miles north to Laredo just to cross the Rio Grande and truck them 500 miles back south would waste thousands of dollars per load. Yet Plant A imported its resin temporarily under IMMEX (IN) and is legally required to prove the material was exported: and Plant A also wants to invoice the U.S. OEM without charging 16% Mexican VAT (IVA).
Mexico solves this through a virtual transfer declared with pedimento code V1 (Apéndice 2 of Anexo 22 of the RGCE). The freight travels by domestic highway from Querétaro to Guanajuato, while on paper the two companies’ customs brokers execute a synchronized virtual export/return (V1) and virtual import (V1).
Used properly, V1 is the backbone of multi-tier nearshoring in Mexico. Handled sloppily, it is one of the fastest ways to trigger a cross-audit (compulsa), lose a 0% VAT position, or leave millions of dollars of temporary imports undischarged.
Editorial note. General educational guidance, not legal, tax, or customs advice. Virtual operations are strictly regulated under Chapter 4.3 of the RGCE, the Customs Law, and Article 29 of the VAT Law (LIVA), and the exact filing deadlines and permitted combinations change with annual rule revisions. Confirm every V1 structure with qualified Mexican tax and customs counsel. Independent editorial resource operated by Heberey LLC.
How the mirror pedimentos (pedimentos espejo) work
Every V1 transfer creates two linked customs declarations that must mirror each other across two separate companies:
| Party | Filing | What happens in Anexo 24 & SCCCyG |
|---|---|---|
| Transferor (Plant A: Shipper) | Virtual Return / Export (V1) | Closes the cycle for Plant A. Discharges the raw materials consumed in the transferred product from Plant A’s Anexo 24 and credits Plant A’s SCCCyG (Anexo 30/31) account. |
| Transferee (Plant B: Receiver) | Virtual Temporary Import (V1) | Opens a new cycle for Plant B. Loads the received components into Plant B’s Anexo 24, opens a new tax-credit charge in Plant B’s SCCCyG, and starts a new temporary stay clock (typically 6 months under general V1 rules unless specific exceptions/certifications apply: verify the active rule). |
Because the SAT’s validation system links the two filings by importer/exporter RFC, IMMEX program number, quantities, and dates, neither pedimento stands alone. If the receiving plant’s broker fails to validate the import V1 within the deadline set by the RGCE (or validates it with different quantities or values), the shipping plant’s virtual return can be invalidated retroactively.
Why there is no border booth: and why “materiality” (materialidad) decides audits
When a truck crosses at Laredo or Otay Mesa, U.S. and Mexican customs officers, bridge toll records, and DODA/PITA scans prove the freight physically moved.
In a V1 virtual transfer, customs never sees the truck. For years, some companies treated V1 filings as back-office accounting entries, bundling weeks of shipments without clean delivery trails. Today, SAT auditors scrutinize V1 operations specifically for materiality (materialidad): objective proof that the goods existed, physically moved from Plant A to Plant B, and entered production.
An audit-ready V1 file for each operation should contain:
- Both validated mirror pedimentos (
V1export andV1import) with matching quantities, commercial values, UMC/UMT units, and cross-referenced pedimento numbers. - Commercial invoices / CFDI matching the structure of the sale (whether domestic alienation or sale via a foreign resident with physical delivery in Mexico).
- Domestic transport proof: Bill of lading, carrier invoice, GPS/gate logs, and the CFDI with Carta Porte complement covering the highway move between Plant A and Plant B.
- Physical warehouse handoff records: Signed packing list, outbound gate pass at Plant A, and stamped inbound receiving report (acuse de recibo) at Plant B showing the physical date of delivery.
- Anexo 24 ledger trace on both sides: Proof that Plant A discharged the BOM and Plant B recorded the receipt into its automated inventory control.
The four failure modes US buyers need to watch
1. Unit-of-measure and valuation mismatches between Plant A and Plant B
Plant A sells wire harnesses in sets, while Plant B receives them into its ERP in individual pieces or at a standard cost that differs from Plant A’s invoice price. If the two customs brokers do not pre-align the exact UMC, UMT, and dollar value before validating the consolidated V1 at month-end, the mirror pedimentos will not match.
2. Late filing (extemporaneidad) on consolidated V1s
Under the RGCE, companies using consolidated virtual pedimentos (pedimentos consolidados) must close and validate the pedimentos within strict calendar windows following the physical transfers. Filing a V1 late is not a minor administrative hiccup: Mexican courts and SAT audit criteria have repeatedly treated untimeliness in virtual operations as a failure to meet the condition for temporary-import return, exposing the transferor to omitted import taxes and fines.
3. Shorter stay deadlines on V1-imported goods
Many operations teams assume that every input entering an IMMEX plant gets an 18-month stay clock. Under the Customs Law and RGCE, merchandise received via a virtual transfer (V1) often carries a shorter statutory stay period (commonly 6 months) unless the receiving company holds specific certifications or falls under an express rule extension. Confirm the exact expiration clock in the receiving plant’s Anexo 24 configuration.
4. Assuming any Mexican supplier can issue a V1
Code V1 only operates between parties that hold the specific programs or authorizations permitted by the RGCE (for example, between two IMMEX entities, or involving authorized OEMs/foreign residents under the conditions of Chapter 4.3). A regular Mexican domestic supplier without an IMMEX program cannot simply “do a V1” to avoid charging VAT.
Pre-launch checklist before authorizing a V1 lane
- Have the customs brokers for both Plant A and Plant B exchanged a written data-alignment sheet (IMMEX numbers, RFCs, 8-digit tariff code + NICO, UMC/UMT, and cutoff calendar)?
- Who is responsible for generating the Carta Porte complement for the domestic truck move between the two Mexican plants?
- Does Plant B’s Anexo 24 system apply the correct stay deadline to
V1receipts as opposed to borderINimports? - Is there a monthly bilateral sign-off where both compliance teams exchange the validated PDFs and XMLs of both mirror pedimentos before the 10th of the following month?
Check your cross-plant data alignment
Before running domestic transfers or switching Mexican contract manufacturers, verify how your ERP, warehouse, and broker records connect.
Educational resource only; confirm all V1 procedures against Chapter 4.3 of the RGCE in force.
Frequently asked questions
What is a V1 virtual pedimento in Mexico?
A V1 pedimento (defined in Apéndice 2 of Anexo 22 of the RGCE) is a documentary customs operation where merchandise moves physically from one facility in Mexico to another without crossing the international border, while legally being treated as an export (or return) by the transferor and a simultaneous temporary import by the receiver.
Why do U.S. buyers use V1 virtual transfers in Mexican supply chains?
Two common scenarios drive V1 usage for U.S. companies: (1) A Tier-2 IMMEX supplier in Mexico manufactures components (such as stamped metal or molded plastic) and delivers them directly to a Tier-1 IMMEX assembly plant in Mexico, while invoicing the U.S. buyer in dollars at 0% Mexican VAT under Article 29 of the VAT Law (LIVA); or (2) a U.S. company moves materials or consigned inventory from one Mexican contract manufacturer to another without trucking the freight back to Texas.
What are mirror pedimentos (pedimentos espejo)?
Every V1 transfer requires two paired customs declarations that must match each other: a virtual export/return pedimento (V1) filed by the shipping company's broker, and a virtual temporary import pedimento (V1) filed by the receiving company's broker. Quantities, tariff classifications, values, program numbers, and timing windows must align across both declarations.
What is a 'compulsa' in a V1 virtual pedimento audit?
Because every V1 operation lives in two companies' records simultaneously, the SAT can run an electronic or documentary cross-check (compulsa) between the transferor and the receiver. If one party amended, canceled, or failed to record the V1 in its Anexo 24 inventory system, the mismatch exposes both companies to disallowed returns or tax assessments.
What is materiality (materialidad) for a V1 operation?
Because no truck crosses a CBP/ANAM border booth during a V1 transfer, customs auditors demand proof that the goods actually existed and moved between the two Mexican facilities: signed delivery receipts, warehouse entry/exit logs, domestic bills of lading (CFDI with Carta Porte complement where applicable), purchase orders, and production records.
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