Commercial invoice and packing list: the fields customs checks

Why customs reads the invoice first

The commercial invoice tells customs what was sold, to whom, for how much and on what terms. It is the primary document for the customs value and for the classification of the goods. The packing list tells customs and the handler how the shipment is packed. The two documents serve different purposes, and neither replaces the other.

A shipment can be held because the invoice description says 'metal parts' while the packing list says 'stainless steel brackets' and the transport document says 'machinery components'. The goods may be perfectly correct. The documents do not give the officer a clear basis for the entry. The fix is not a new shipment. It is a corrected document set, which still costs time.

The invoice is also a commercial document. It supports payment, warranty, accounting and the contract. A low value declared to reduce duty is not a harmless shortcut. It creates a false customs declaration and can expose both buyer and seller to penalties.

The invoice fields that matter

The invoice should identify the seller and the buyer, including addresses and any tax registration numbers required by the destination. It needs a unique invoice number and date, the currency of sale, the payment terms and the Incoterm with the named place. The Incoterm is not decoration: it decides which costs are included in the price and where risk passes.

Each line should describe the goods clearly enough for classification. 'Copper busbar, 40 x 10 mm, 2 m, tin plated' is useful. 'Electrical goods' is not. Add the part number, the material, the dimensions and the finish where they affect the classification. State the quantity, the unit of measure, the unit price and the line total. If the unit price is per kilogram, say so.

Add the HS code used for the entry, the country of origin, the net and gross weight and the number of packages. If freight, insurance or packing are charged separately, show them. If a discount or a royalty applies, show it. The customs value is built from the transaction, and hidden adjustments are a common source of post-clearance questions.

The packing list is not a copy of the invoice

The packing list describes the physical shipment. It should show the number of packages, the type of package, the dimensions, the gross and net weight, the marks and numbers, and what is inside each package. If a pallet contains three part numbers, the list should say so. That is how the warehouse and the officer know what to expect when the container is opened.

The marks and numbers should match the transport document and the labels on the packages. A carton marked '1 of 12' that appears as '1 of 10' on the list creates a discrepancy. So does a gross weight that differs from the carrier's record. Small differences are normal, but a large gap suggests that the list is stale.

For mixed shipments, list each line by package where practical. For a single part number in many cartons, a summary is enough if the total count and weight are clear. The test is whether someone who has never seen the shipment can identify each package and reconcile it to the invoice.

Consistency across the document set

Customs brokers work by matching documents. The invoice, packing list, bill of lading or airway bill, certificate of origin and any licence should tell the same story. The consignee on the transport document should match the buyer or the party named in the invoice. The quantity should match the packing list. The weight should match the carrier's record.

The description does not have to be word for word identical, but it must be consistent. A bill of lading that says 'machinery parts' and an invoice that says 'copper busbars' can usually be reconciled, because a busbar is a machinery part. A bill of lading that says 'plastic articles' and an invoice that says 'copper busbars' cannot. The officer will ask which document is wrong.

Version control is the simplest defence. Give the invoice and packing list a revision, send the final set to the broker before the vessel or flight closes, and keep the approved set with the shipment file. If a document is corrected after the entry, keep the correction and the reason. An audit trail is easier than a reconstruction.

Customs value and the lines that change it

Most customs value is based on the transaction value: the price actually paid or payable, adjusted for the elements required by the destination's valuation rules. Freight and insurance to the border may be added. So may assists such as tooling, design work or materials supplied free of charge by the buyer. Royalties and licence fees may be included if they are a condition of sale.

A buyer-supplied tool can be a trap. If the buyer pays for a stamping die and leaves it with the supplier, the value of the die may need to be apportioned into the price of the parts. The same applies to a mould, a fixture or free-issue material. The invoice may not show it, but the customs value may still include it.

Related-party transactions need care. A price between related companies is acceptable only if it reflects an arm's length transaction, or if the buyer can support the valuation with another method. Keep the transfer pricing file and the commercial rationale. A low price between affiliates invites a valuation query.

The errors that cause delays

The most common error is a vague description. The second is a wrong or missing HS code. The third is an invoice total that does not add up, or a currency that differs from the payment terms. The fourth is a packing list that lists cartons which do not match the labels. The fifth is an origin statement that confuses the country of dispatch with the country of manufacture.

Another frequent problem is a split shipment. If part of an order ships early, the invoice and packing list should show the split clearly and refer to the original order. The entry should not value the whole order twice. If the balance ships later, the documents should say so.

A first shipment checklist

Before the first shipment, send the draft invoice and packing list to the broker for review. Ask the broker to confirm the HS code, the valuation basis and any licence or certificate. Check the Incoterm against the freight quote. Check that the buyer's name and address match the import registration.

At shipment, compare the final documents with the carrier's bill of lading or airway bill. Check the package count, the weight and the marks. Send the final set to the broker before the cut-off. Keep a copy of the set that was used for the entry, not just the latest version on the shared drive.

• Draft invoice and packing list reviewed by the broker
• HS code and origin confirmed for each line
• Incoterm and named place consistent with the freight quote
• Package marks, count and weights match the carrier record
• Certificates and licences attached where required
• Final set archived with the entry and any correction