Customs Broker Agreement Mexico (Contrato de Agencia Aduanal)

A Customs Broker Agreement Mexico (Contrato de Agencia Aduanal) is a written mandate contract (contrato de mandato) by which an importer or exporter (mandante) authorises a licensed customs broker (agente aduanal) to act on their behalf before the Agencia Nacional de Aduanas de México (ANAM) and the Servicio de Administración Tributaria (SAT) for all customs clearance operations (operaciones aduaneras) including the filing of pedimentos (customs declarations), payment of import duties (aranceles), value added tax (IVA), and other applicable taxes, and the physical inspection of merchandise at Mexican customs ports of entry (aduanas).

The Ley Aduanera (LA, DOF 15 December 1995 as amended) Articles 159 through 176 establish the complete regulatory framework for agentes aduanales in Mexico. Article 159 LA defines the agente aduanal as a physical person (persona física) authorised by the SAT through a patent (patente aduanal) to act as a customs representative before the ANAM. Only individuals — not corporations — may hold a patente aduanal under Article 160 LA. Each customs agent acts through a mandate relationship (relación de mandato) governed by the Código Civil Federal (CCF) Articles 2546 through 2604 on mandate, as modified by the specific provisions of the Ley Aduanera.

Article 162 LA establishes the primary obligations of the agente aduanal including: acting only within the scope of the authorisation granted by the importer or exporter; classifying merchandise correctly under the Tarifa de la Ley de los Impuestos Generales de Importación y de Exportación (TIGIE) — the Mexican Harmonised System tariff schedule; calculating and declaring the correct customs value (valor en aduana) of imported goods under the Acuerdo sobre Valoración en Aduana de la OMC implemented through Articles 64 through 78 LA; and applying the correct preferential tariff treatment under applicable trade agreements including USMCA (T-MEC), the Global Agreement with the European Union (TLCUEM), and other FTAs to which Mexico is a party.

The ANAM (Agencia Nacional de Aduanas de México) was created by Decreto published in the DOF on 1 July 2021, replacing the former Servicio de Administración Tributaria customs administration directorate — ANAM now operates as a decentralised body (órgano desconcentrado) of the SAT with its own budget and operational independence. The ANAM administers 49 aduanas across Mexico at land borders, sea ports, and international airports, all subject to the Ley Aduanera and its Reglamento.

Customs broker liability under the Ley Aduanera is joint and several (solidaria) with the importer for incorrect tariff classification, undervaluation of goods, or misuse of preferential tariff treatment under Articles 53 and 54 LA — the agente aduanal is co-responsible with the importer for underpayment of import duties and taxes arising from errors in the pedimento (customs declaration). This solidary liability framework makes the Contrato de Agencia Aduanal critically important for defining the allocation of liability between the broker and the importer, particularly for high-value or high-volume trade operations under the IMMEX Programme (Industria Manufacturera, Maquiladora y de Servicios de Exportación, Decreto DOF 1 November 2006).

The Reglamento de la Ley Aduanera (RLA, DOF 6 June 1996 as amended) establishes procedural requirements for customs operations including electronic pedimento filing through the Ventanilla Única (VUCEM — Ventanilla Única de Comercio Exterior Mexicano), which handles all import and export permits, non-tariff measures, and official Mexican norms (NOMs) compliance documentation electronically. Every pedimento filed through the VUCEM requires the digital signature (firma electrónica avanzada or FIEL/e.firma) of both the agente aduanal and, in many cases, the importer or exporter.

A Customs Broker Agreement Mexico is required whenever a company or individual regularly imports or exports goods through Mexican customs ports of entry (aduanas) and wishes to appoint a licensed agente aduanal to handle customs clearance on their behalf under the Ley Aduanera.

The contract is needed by manufacturing companies (empresas manufactureras) and IMMEX Programme operators who move raw materials, components, and finished goods across Mexican borders — the agente aduanal files the temporary import pedimentos (pedimentos de importación temporal) and export pedimentos (pedimentos de exportación) required to operate under the IMMEX Programme without paying import duties on temporarily imported goods destined for transformation and re-export.

A Contrato de Agencia Aduanal is required by importers of goods subject to non-tariff measures (medidas no arancelarias) including official Mexican norms (Normas Oficiales Mexicanas or NOMs), prior import permits (permisos previos de importación) from the Secretaría de Economía, sanitary registration requirements from COFEPRIS (Comisión Federal para la Protección contra Riesgos Sanitarios), or SENASICA phytosanitary certificates — the agente aduanal manages compliance with all these regulatory requirements through the VUCEM.

The agreement is needed by e-commerce businesses and international traders using the SAT simplified customs clearance procedures for small-value imports under the Regla de Importación de Mínimos and the Norma de Operación de Couriers established by ANAM — these programmes require formal representation by a licensed customs broker or courier operator.

Companies engaged in trade under preferential tariff programmes — including USMCA (T-MEC), TLCUEM (Mexico-EU Global Agreement), the Mexico-Japan Economic Partnership Agreement, and Mexico's 12 other free trade agreements covering 50 countries — need a Contrato de Agencia Aduanal to ensure that the agente aduanal correctly applies and documents the preferential origin (origen preferencial) of goods and maintains the required certificates of origin on file for SAT and ANAM verification.

Under Ley Aduanera arts. 159–176, CFF art. 92, and ANAM regulations, importers and exporters who use customs broker services should formalise the relationship in a written contract — without a written mandate, the scope of the broker's authority, the allocation of solidary liability, and the fee arrangement are undefined, creating significant legal exposure for both the broker and the importer in the event of customs audits or valuation disputes.

A valid Customs Broker Agreement Mexico under the Ley Aduanera Articles 159–176 and the Código Civil Federal mandate provisions must contain the following essential elements:

Identification of the Agente Aduanal: Full name of the customs broker as an individual (persona física), patente aduanal number issued by the SAT, RFC, official address (domicilio fiscal), and the names and authorisations of any sub-agents (mandatarios aduanales) or agents-in-place (apoderados aduanales) authorised to sign pedimentos on behalf of the patente holder. The patente aduanal number must be quoted on all pedimentos filed by the broker per Article 163 LA.

Identification of the Importer/Exporter (Principal): Full legal name or corporate name, RFC, padrón de importadores registration number (mandatory for importers under Article 59-A LA), and domicilio fiscal. Importers of specific goods (e.g., textiles, steel, chemicals, electronics) must also be registered in the Padrón de Importadores de Sectores Específicos administered by the SAT.

Scope of the Mandate (Alcance del Mandato): Specific description of the customs operations the agente aduanal is authorised to perform — import clearance (despacho de importación), export clearance (despacho de exportación), transit operations (tránsito aduanero), abandonment proceedings (procedimientos de abandono), IMMEX Programme pedimentos, specific customs regime changes, and representation before ANAM in verification visits (visitas domiciliarias aduaneras) and administrative proceedings. The mandate scope may be general (mandato general) or specific to a single customs operation (mandato especial).

Customs Value and Classification Obligations: Express obligation of the agente aduanal to classify goods correctly under the TIGIE (Tarifa de la Ley de los Impuestos Generales de Importación y de Exportación), determine customs value (valor en aduana) using the primary transaction value method or applicable alternative methods under Articles 64–78 LA and the WTO Customs Valuation Agreement, and apply the correct tariff rate including any anti-dumping duties (cuotas compensatorias) published in the Diario Oficial de la Federación.

Importer's Obligations: Obligation of the principal to provide the agente aduanal with accurate and complete commercial invoices (facturas comerciales), packing lists (listas de empaque), certificates of origin (certificados de origen), technical specifications, import permits (permisos de importación), and any other documentation required for VUCEM processing. The principal confirms that all declared information is accurate and accepts primary legal responsibility for the truthfulness of the commercial documents.

Fees and Expenses (Honorarios y Gastos): Agreed customs broker fee (honorario aduanal) per operation, per shipment, or as a monthly retainer; reimbursable expenses including port storage fees (almacenaje), customs examination costs (costos de reconocimiento aduanero), courier and translation costs; payment terms; and the agent's right to suspend operations for non-payment consistent with CCF Article 2561.

Liability and Indemnification: Allocation of liability for customs penalties (multas aduaneras), tax credits (créditos fiscales), and anti-dumping duties arising from errors in pedimento data — specifying which party bears responsibility for errors attributable to incorrect information provided by the importer vs. errors in tariff classification or customs procedure by the broker. Express indemnification by the principal of the agente aduanal for liabilities arising from information the principal provided incorrectly, subject to the broker's due diligence obligations under Article 162 LA.

Record-Keeping and VUCEM: Mutual obligation to maintain records of all pedimentos, commercial invoices, and supporting documents for the 5-year prescription period under Código Fiscal de la Federación Article 67, and to cooperate in ANAM verification visits and SAT electronic audits (revisiones electrónicas) conducted through the VUCEM system.

Forms-legal.com provides this Customs Broker Agreement Mexico template as a practical starting point. Companies engaged in high-volume international trade, IMMEX Programme operations, or importation of regulated goods under COFEPRIS, SENASICA, or SEDENA permits should have this agreement reviewed by a Licenciado en Derecho specialised in comercio exterior and derecho aduanero to ensure full compliance with current ANAM and SAT administrative rules.