What Foreign Companies Need to Import into Mexico
Importer of record, SAT registrations, customs broker mandate, classification and product compliance: what needs to be in place before the first shipment.
Read the insightKey takeaways
- A commercial import moves through seven stages: pre-shipment, freight, pre-clearance, the pedimento, clearance, release and delivery, then reconciliation.
- Most delays start before the goods ship, with incomplete or inconsistent supplier documentation.
- The customs broker files the pedimento. The importer remains responsible for the information behind it.
- Reconciling the landed cost after every shipment keeps prices and margins accurate.
The shape of the process
This is a general overview of how a commercial shipment typically moves into Mexico. Exact steps vary by product, origin, transport mode, customs office and the importer's own programs. Your licensed customs broker defines the specific procedure for each operation.
It assumes the importer is already set up: registered in the Padrón de Importadores, with a customs broker formally authorized. If that is not yet in place, start with What Foreign Companies Need to Import into Mexico.
Stage 1 — Pre-shipment preparation
This is where most problems are prevented or created. Before the goods leave the supplier:
- The commercial invoice, packing list and product data are checked for consistency: descriptions, quantities, values, weights.
- Tariff classification is confirmed with the customs broker for each SKU.
- Origin documentation is prepared if preferential treatment is claimed.
- Non-tariff requirements are verified: permits, standards (NOMs) and labeling.
- The landed-cost estimate is updated for this shipment.
Stage 2 — Freight and transit
The freight forwarder or carrier moves the goods by sea, air or land. For shipments from the United States or Canada, land crossings are common. Shipments from Asia and Europe are typically ocean or air freight. During transit, the transport documents (bill of lading, air waybill or land documents) are issued and shared with the customs broker, and arrival is tracked against the plan.
Stage 3 — Pre-clearance with the customs broker
Before or on arrival, the customs broker reviews the full document set, confirms classification and values, and calculates the duties and taxes due. Missing or inconsistent information surfaces here. It is far better to resolve it before arrival than while the goods sit in storage at the port or border.
Stage 4 — The pedimento and payment of duties
The customs broker files the import declaration, the pedimento, which records the importer, goods, classification, value, origin and the taxes due. Duties and taxes are paid according to the applicable procedures. Mexico's 2026 customs reform increased expectations on importers and brokers for supporting documentation behind each operation, which makes a complete and organized file for every shipment more important [1].
Stage 5 — Customs clearance
The goods are presented to customs, and the operation goes through the applicable review process. Some operations are released directly. Others are selected for inspection. If an inspection finds discrepancies in classification, quantity, value or compliance, the operation may be delayed and additional costs or penalties may apply.
Stage 6 — Release and domestic delivery
Once released, the goods move to their destination, usually a 3PL or a marketplace fulfillment center. Domestic transport requires the applicable transport documentation. On arrival, the warehouse receives, counts and inspects the goods. Discrepancies should be recorded immediately against the shipment documents.
Stage 7 — Reconciliation and records
After delivery, reconcile the shipment:
- Actual landed cost versus the estimate: freight, duties, taxes, broker fees, storage, local transport.
- Quantities received versus shipped.
- Complete document file archived for the retention period required by law.
- Lessons captured for the next shipment.
Where shipments usually get delayed
| Cause | Prevention |
|---|---|
| Inconsistent supplier documents | Validate invoice, packing list and product data before shipment. |
| Classification uncertainty | Confirm classification per SKU with the broker in advance. |
| Missing standards or labeling | Identify applicable NOMs during product onboarding, not at the border. |
| Importer registration issues | Monitor the importer's tax and registry status continuously. |
| No clear owner | Assign one coordinator across supplier, forwarder, broker and 3PL. |
PCG coordinates each of these stages with your supplier, forwarder, licensed customs broker and 3PL, and reports milestones in one tracker. Customs clearance itself is performed by licensed customs brokers. See cross-border operations.
Frequently asked questions
What is a pedimento?
The pedimento is the customs declaration filed by a licensed customs broker for an import or export operation in Mexico. It records the importer, the goods, their classification, value and origin, and the taxes and duties due.
Who is responsible if the information on the pedimento is wrong?
The importer is responsible for the information provided about its goods, and Mexico's 2026 customs reform also increased the responsibilities of customs brokers. Accurate, consistent documentation from the supplier onward is the best protection. Specific liability questions should be reviewed with qualified customs counsel.
PCG Innovations
Mexico market entry and cross-border operations partner for international companies. This article is general information, not legal, tax or customs advice. Requirements change; confirm with qualified professionals and official sources.