Everything about customs clearance in Mexico: from goods arrival to release, with every step of the process, involved actors, and expected timelines.
Customs clearance (despacho aduanero) is the set of acts and formalities that must be completed for goods to legally enter or leave Mexican national territory. It is regulated by Articles 35 through 45 of the Customs Law and encompasses everything from presenting goods to customs authorities through to their release or delivery to the importer. The process involves multiple actors and can take from a few hours to several days depending on the type of goods, the customs port, and the outcome of the automated selection mechanism.
Mexico has 49 customs ports distributed along its northern and southern borders, seaports, and international airports. Each customs port has jurisdiction over a specific geographic area and offers different infrastructure capabilities. The choice of customs port can significantly affect operation times and costs.
There are two main types: normal clearance, which follows the complete automated selection mechanism process, and pre-clearance (despacho previo), which allows all documentation to be prepared before the goods arrive to expedite their release. Pre-clearance is standard practice in professional operations.
Customs clearance requires the coordinated participation of multiple actors. Each has a specific role and responsibilities defined by the Customs Law.
The customs clearance process follows a well-defined sequence of steps. While it may vary slightly by customs port and merchandise type, the general structure is the same for all imports.
The automated selection mechanism, colloquially known as the traffic light system (semáforo fiscal), determines whether goods will undergo a customs inspection (physical examination) or be released directly. It operates on a random basis using risk criteria defined by customs authorities.
Approximately 15-20% of pedimentos receive a red light. However, for companies with AEO (Authorized Economic Operator) certification or good compliance records, the percentage is significantly lower. Companies can reduce their inspection probability by maintaining a clean and complete track record.
Pre-clearance (despacho previo) allows the pedimento to be prepared, validated, and paid before the goods physically arrive at customs. This significantly reduces wait times, as when goods arrive, only the automated selection mechanism activation and, if applicable, the customs inspection remain.
To use pre-clearance, the importer must provide the customs broker with all necessary documentation well in advance, typically at least 48 hours before the estimated arrival of goods. The broker prepares the pedimento with available information (invoice, advance B/L, packing list) and transmits it. The pedimento remains in 'pre-validated' status until the goods arrive and the traffic light is activated.
Pre-clearance can reduce release time from 3-5 days to under 24 hours. This represents significant savings in storage costs, container demurrage, and delivery times to the end customer. It is standard practice for IMMEX operations and companies with just-in-time supply chains.
Customs clearance timelines and costs vary based on multiple factors: merchandise type, customs port, complexity of applicable regulations, and whether goods are selected for inspection.
The main strategies for reducing clearance costs are: always use pre-clearance, maintain complete and correct documentation to avoid delays, choose customs ports with adequate infrastructure for your cargo type, and consider AEO certification for additional facilitations.
The Customs Law and RGCE establish the documents that must accompany goods during clearance. Documentation varies by operation type and merchandise, but the basic documents are the same for most imports.
It is the importer's responsibility to provide all documentation to the customs broker with sufficient lead time. Incomplete or incorrect documents are the most frequent cause of clearance delays. A good practice is to maintain a checklist for each operation.
Even with careful preparation, problems can arise during customs clearance. Knowing the most common scenarios and their solutions allows for quick reactions and minimized impact on timelines and costs.
Most customs clearance problems are preventable with good coordination between the importer, customs broker, and foreign supplier. Verifying documentation before shipment, confirming permits and certificates are current, and using reliable tariff classification tools like Camtom are best practices.
Camtom Team
Editorial Team
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